FGD and DeNOx
NEWSLETTER
September 2020
No. 509
Table of Contents
WASTE-TO-ENERGY
·
Doosan Heavy Industries
& Construction Wins KRW 220 Billion Waste-to-Energy Plant Project in Poland
·
Anquil Now Has an Indian
Subsidiary
·
Babcock & Wilcox
Environmental to Supply Technology to Help Power Plants Meet Ash-Handling
Environmental Requirements
·
Significant Drop in
Thermax Group Q1’21 Performance Due to COVID-19; Unnikrishnan to Retire as MD &
CEO in August and Ashish Bhandari to Take Over
TECHNOLOGY
·
India SOx-NOx Conference
Slated for October 27, 28
·
Caterpillar Supplying
SCR for 58-MW Northwestern Energy Plant
·
Gas Turbine Filter Media
Lines Supplied by Elmarco
·
Miratech Corp. is
Preferred Supplier of Exhaust After Treatment Systems to Kohler Power
·
Rapid Advantage SCR
Allows Gas Turbines to Quickly Ramp Up While Meeting NOx Limits
BUSINESS
·
CECO Environmental and
Mader Machine Co. Create Damper Joint Venture
·
Mitsubishi Power is New
Name for MHPS
·
Babcock & Wilcox Enterprises Announces Board Changes
·
Caofeidian Power Station
Incorporates a Number of Innovative Efficiency Enhancements
·
NTPC Flyash Now Being
Used in Cement Plants
·
Thai Plant Incorporates
Safety Initiatives Crafted by Benetech
· Indian Government Plans Another Two-Year Deadline Extension for Polluting Coal Plants
WASTE-TO-ENERGY
Doosan Heavy Industries & Construction Wins KRW 220 Billion Waste-to-Energy
Plant Project in Poland
Doosan Heavy Industries & Construction announced that the consortium it formed
with its German subsidiary Doosan Lentjes had won a waste-to-energy plant
construction project. The client is the Polish energy company Dobra Energia and
the contract is valued to be about KRW 220 billion. The project is for a WtE
plant that treats about 300 tons of municipal waste per day to generate a heat
and electricity supply of about 12 MW for the local community. The plant will be
constructed in Olsztyn, about 200 km north of Poland’s capital Warsaw.
A WtE plant is a facility that converts combustible waste resources generated by
industrial sites or households into energy through the gasification,
incineration or pyrolysis process. It has recently been thrust into the
spotlight, as it not only generates electricity from waste, but also helps to
minimize landfills and thus, reduce environmental pollution. New orders for WtE
plants are particularly increasing in Europe due to the waste landfill
restriction policy imposed amidst the rising demand for replacement of old
plants.
The consortium, consisting of Doosan Heavy Industries & Construction and Doosan
Lentjes, will be taking on the project as an Engineering, Procurement,
Construction turnkey project and plans to complete the construction by 2023.
Doosan Heavy will provide overall project management services, while Doosan
Lentjes will be supplying the incineration boiler and environmental equipment
and also be performing mechanical and electrical works. Its Czech subsidiary
Doosan Skoda Power will also participate in the project by supplying a small 12
MW industrial steam turbine.
Anquil Now Has an Indian Subsidiary
In response to increased demand for its environmental technologies and services,
Anguil Environmental Systems Inc. (Anguil) is expanding its’ coverage in the
Indian market with the formation of a wholly owned subsidiary in the country. On
June 22, 2020, the articles of incorporation were approved by
government officials and Anguil Environmental Systems Private Limited was
formed. Since then, Anguil has established a direct presence by securing an
office in Gujarat and hiring several seasoned employees with plans for more
hires in early 2021.
Anguil has been serving the global air pollution control market since 1978. With
well-established partners already in place and several successful installations
throughout India, company executives felt the time was right. “Forming a
subsidiary of the United States parent has always been part of the company’s
overall international strategy” said Chris Anguil, President of Anguil
Environmental. “After successfully penetrating the European and Asian markets,
we knew India was a priority given the growing demand for pollution control
solutions.”
Having an established company in the local market allows Anguil technologies to
be manufactured utilizing local resources while avoiding substantial
international freight costs and duties. Customers can expect a responsive,
single source provider for their specific pollution control needs. With a
dedicated local team of technical sales, engineering, and service resources at
the ground level, the company seeks to serve the nation with the best technology
at an affordable price.
Anguil Environmental provides highly engineered, environmental equipment and
service solutions that help clients solve complex industrial air and water
challenges across the globe. For over 40 years, Anguil has been committed to
protecting the environment with unmatched engineering, innovative equipment,
guaranteed compliance, and reliable service.
On air pollution control applications, Anguil provides the design,
manufacturing, service, and installation of thermal and catalytic oxidizers for
the destruction of Volatile Organic Compounds (VOCs), Hazardous Air Pollutants
(HAPs), process odors, and Nitrous Oxides (NOx). Anguil also
specializes in energy recovery systems that reduce a company’s operating costs,
lower their carbon footprint, and decrease energy consumption by utilizing waste
heat from manufacturing processes.
For wastewater treatment applications, Anguil provides turnkey systems that
target solid or liquid pollutants from industrial and remediation
applications. As a custom solution company, they can integrate a range of
technologies with proven techniques to meet specific site challenges.
The company’s wastewater treatment solutions are
currently being offered in North America only but there are plans to expand
those offerings to the international markets in coming years.
Utilizing Anguil’s industry-leading, customer-focused aftermarket services will
prolong a pollution abatement system’s life and minimize operating costs.
Their “Never Walk Away” policy ensures increased up time and regulatory
compliance.
Babcock & Wilcox Environmental to Supply Technology to Help Power Plants Meet
Ash-Handling Environmental Requirements
Babcock & Wilcox announced that its B&W Environmental segment will supply its
innovative, patented Allen-Sherman-Hoff® Submerged Grind Conveyor
technology to help a customer meet U.S. Environmental Protection Agency rules
for the handling of ash from power plants.
B&W was awarded a contract for more than $8 million to design and supply two
Submerged Grind Conveyor (SGC) ash handling systems and associated equipment.
The ash handling systems will help the plant owner reduce water use and reliance
on ash storage ponds.
“B&W Environmental’s SGC technology is a unique, cost-effective solution that
helps customers to meet U.S. effluent limitation guidelines (ELG) and combustion
residuals (CCR) requirements with a simplified and cost-effective design,” said
B&W Chief Operating Officer Jimmy Morgan. “We’re looking forward to providing
our customer with the solutions they need to keep their plants running cleanly
and safely.”
Engineering and manufacturing is underway in B&W’s offices in Akron and
Lancaster, OH, and in Exton, PA.
B&W Environmental’s SGC system is smaller and lighter than conventional
submerged chain conveyors because it receives bottom ash after crushing by
clinker grinders and is not subject to heavy loads. Its flexible design can be
adapted between a plant’s boiler and outside the boiler house. No ash transport
water is used, which meets the ELG requirement for closed loop or zero discharge
of water.
Significant Drop in Thermax Group Q1’21 Performance Due to COVID-19;
Unnikrishnan to Retire as MD & CEO in August and Ashish Bhandari to Take Over
For the 1st quarter of Fiscal Year 2020-21, at the consolidated
level, Thermax posted an operating revenue of Rs. 665 crore, down 52 percent as
compared to Rs. 1392 crore in the corresponding quarter, last year. Loss after
tax for the quarter was Rs. 15 crore, against a profit of Rs. 63 crore in the
corresponding quarter of Fiscal Year 2019-20.
As on June 30, 2020, Thermax Group had an order balance of Rs. 5212 crore
(Rs.5250 crore), down 1 percent. Order booking for the quarter was 50 percent
lower at Rs. 608 crore (Rs.1217 crore). The unprecedented slowdown in industrial
activity globally during the quarter, mainly on account of the COVID-19
pandemic, has severely impacted the company’s performance. The company
registered a loss for the first time in two decades.
On a standalone basis, Thermax posted an operating revenue of Rs. 429 crore
during the quarter, 46 percent lower as compared to Rs. 788 crore in the
previous year. Loss after tax for the quarter was Rs. 2 crore compared to last
year’s profit of Rs. 24 crore. Order balance on June 30, 2020, stood at Rs. 3612
crore (Rs. 2771 crore), up 30 percent. Order booking for the quarter, Rs. 477
crore (Rs. 787 crore) was 39 percent lower.
After serving as MD & CEO of the Thermax Group for 13 years, M.S. Unnikrishnan
will retire on August 31, 2020, and Ashish Bhandari, who joined as Joint MD on
April 7, 2020, will succeed him as the new MD & CEO. Speaking on the leadership
change, Meher Pudumjee, Chairperson, Thermax said, “On behalf of the Board and
the family, I thank Unny for his association with Thermax for 28 long years. His
contribution in steering the company successfully throughout his tenure as MD &
CEO while upholding its culture and values has been commendable. I wish Ashish
success in furthering our vision and navigating Thermax through its next phase
of growth.”
TECHNOLOGY
India SOx-NOx Conference Slated for October 27, 28
As India’s energy demand soars, power producers and equipment makers are
increasingly investing in clean technology to cut down on emissions. The power
industry in India is investing huge sums in clean technology to combat air
pollution even as power generation capacities are increasing rapidly. Growing
awareness about the hazards of pollution is triggering off demand for air
pollution control equipment (APCE) as industries – ranging from power plants to
cement manufacturing units – are investing in new technologies to curb
emissions. India’s enormous energy needs are compelling huge expansion of its
installed power capacities
THE SCENARIO - The non-compliance shouldn’t come as a surprise. For, right from
the draft stage to the post-notification phase, the move to raise the bar faced
stiff resistance from within the government and industry.
YEAR 2015 - A new set of standards that was notified for the plants involved in
power generation by the Ministry of Environment, Forests & Climate Change
(MoEF&CC) in December 2015 which implanted will reduce freshwater withdrawal
from coal power sector by 85 percent, particulate emissions by 65 percent, and
SOx emissions by over 85 percent and NOx by almost 70 percent.
YEAR 2017- CEA instructs power plants to Install FGD for 1,61,402 MW and Upgrade
ESP for 64,525 MW of generation capacity to meet new environment norms with
deadline ranging from 2020 to 2022 to meet the new environment norms and none
are expected to adhere to the pollution norms before that if one goes by the
CEA’s “Phasing Plan”.
YEAR 2019- DEADLINE IS LONG PASSED. Implementation of the standards hasn’t moved
and inch. Instead, Ministry of Power, duly supported by Ministry of Environment
Forest and Climate Change, has managed to get a five-year extension, PUSHING THE
DEADLINE TO ranging from 2020 to 2022.
TODAY - Almost four years have passed since the first notification from the
central government and the progress with retrofitting pollution-control
technology has been at a SNAIL's PACE. A negligible amount of capacity has
installed the equipment as of December 2019. Only around 58 per cent of the
total installed capacity has issued a notice inviting tenders, though in some
cases bids have been received and contracts awarded. Given that retrofitting
flue gas desulphurization equipment requires 18–30 months for construction; will
the power plants meet the 2022 deadline?
To again address the current issues, challenges and discuss a way forward
towards implementation new norms; Mission Energy Foundation calls the industry
stakeholders to again gather during the 5th edition of SOx NOx 2020
(Vi-Conference + Vi-Expo + Vi-Awards), scheduled on 27 - 28 October 2020, at
Next-Gen Virtual Platform.
Vi-CONFERENCE
SOx NOx 2020 is announced with its objective to again address the current
issues, challenges and discuss a way forward towards implementation of new norms
and gather industry stakeholders during the two days of business affairs.
Vi-EXPO
Exhibiting during SOx NOx 2020 is a cost effective and invaluable tool to help
deliver your technology, product, equipment and services to senior decision
makers of your core target market and will help grow your business.
Vi-AWARDS
The Environment Excellence Awards – 2020 shall honor clean generators and
solutions providers for better development of the power sector for the years to
come ahead; all in a Virtual Format this year. There are lots of
orders still to be placed for FGD systems. Only a few have actually been
installed despite earlier deadlines.
Bids have been awarded for only 10 percent of the needed systems. (total planned
# is in error in the following chart).
According to Mission Energy the many reasons for resisting the regulations are
not sound. Here are the facts as Mission Energy sees them.
For more information on the conference contact
S Dalvi | President Partnerships & Legal Counsel
+91 9769310944 |
Mission Energy Foundation (A not-for-profit Organisation)
003, B-16, Sector 1, Shanti Nagar, Mira Road, Thane, Maharashtra
HELPLINE - 98560 98360
Caterpillar Supplying
SCR for 58-MW Northwestern Energy Plant
Caterpillar Inc. announced an agreement with NorthWestern Energy to supply an
integrated power solution that includes six Cat G20CM34 gas generator sets for a
58 MW power plant near Huron, SD.
The Cat G20CM34 gas generator sets will replace combustion turbines currently
operating at the Huron Generating Station. By providing fast start capability
and highly efficient energy production at varying load levels, Cat said the
G20CM34 generator sets will deliver the capacity needed for reliable, safe, and
affordable service while accounting for intermittent energy supply from
renewable resources.
Caterpillar is also supplying selective catalytic reduction (SCR) emissions
systems, switchgear, exhaust stacks, and control solutions for the new facility,
which will be built on the current site. Additionally, the power system will be
equipped with Cat Connect services, which will enable the operations staff to
optimize the performance and maintenance of the plant.
Construction activities began in July, with commercial operation expected at the
end of 2021. When complete, the new facility will have a smaller footprint and a
larger setback than the current building.
Gas Turbine Filter Media Lines Supplied by Elmarco
Complete production line with two spinning unit capacity, delivered to filter
media and final filter manufacturers. Elmarco's turn-key solution included
entire technology integration and peripheral delivery. A light nanofiber layer
deposited onto cellulose filter media ensures target filtration efficiency at a
significantly lower pressure drop with good cleanability.
Miratech Corp. is Preferred Supplier of Exhaust After Treatment Systems to
Kohler Power
Miratech Corp. announced it has been selected as a preferred supplier of exhaust
aftertreatment systems (EATS) to Kohler Power and its North American distributor
network, including the KD Series line of Industrial Generators.
In announcing this selection to its distributor network, Kohler cited speed and
flexibility to customer needs as the primary reason for choosing Miratech from
the entire EATS supply base.
“Miratech provided the best pricing, engineering support, brand equity, and
innovative systems available,” said Jim Rummel, Associate Director at Kohler Co.
“Pairing Kohler’s and Miratech’s brand recognition in the marketplace provides
mutually beneficial synergies in the supply chain process that will translate to
an exciting offering for our end users. Miratech is a perfect fit with the
technology advanced KD Series.”
Miratech’s systems portfolio includes catalysts, housings, silencers, and
monitoring systems to reduce engine exhaust pollutants such as NOx,
CO, CH2O, diesel particulate matter (PM), HAPs, and noise.
“Being the preferred supplier to Kohler Co., one of the world’s largest and most
respected industrial generator manufacturers, is emblematic of our company’s
global mission,” said David Zenthoefer, Miratech’s CEO. “Together we will
improve the environment by providing innovative emissions solutions in a way
that showcases our commitment to customers, integrity, systems integration, and
quality engineered products.”
Going forward, authorized Kohler distributors will work directly with Miratech
to solve project emissions requirements. NOx reduction, PM reduction,
and Tier 4 compliance are among the solutions Miratech has developed to service
the Kohler Co. KD Series Generator line. The distributor will continue to
purchase generators from Kohler and, if desired, EATS from Miratech, based on
project specs and logistics, to ensure a smooth customer experience.
Rapid Advantage SCR Allows Gas Turbines to Quickly Ramp Up While Meeting NOx
Limits
Vaughn Watson, Director, Aftermarket Sales & Services with CECO Peerless Mfg.,
explains why a unique approach is needed during cycling.
“Plants are now having to maintain emissions compliance while the unit is
ramping up. They need to be able to turn on their gas turbine as quickly as
possible while still meeting emissions. To do that, we have a technology called
RASCR, (or) Rapid Advantage SCR,” he said. “That allows, when in that time over
temperature race, (plants to) have the quantity of ammonia needed to maintain
their emissions controls.”
It’s a solution that makes sure plants running at low load aren’t seeing their
emissions spike during that time when the power is abundant and keeps them
within regulation as they execute fast starts later on.
It also eliminates the need for other methods, such as using electric
vaporization, which can cannibalize a plant’s power by requiring a high amount
of electricity or hot gas fans requiring frequent maintenance. Instead, RASCR
gives an alternative and delivers an option with a high ROI thanks to its lower
cost of operation
Features: • Uses small horsepower ambient air fans • CECO Peerless combustion
chamber design • Available with or without CECO Peerless high-efficiency packed
tower vaporizer • Hazardous area classified • Redundancy options available •
Dual fuel capacity
Benefits: • Ammonia vaporization in less than 5 minutes from gas turbine start •
Much lower parasitic loss as compared to electric vaporization • Alleviates
potential failures associated with hot gas recirc fans • Low O&M costs • Low gas
consumption • Low cost of natural gas offers short-term ROI.
BUSINESS
CECO Environmental and Mader Machine Co. Create Damper Joint Venture
CECO Environmental and Mader Machine Co. (Mader), have entered into an agreement
to create a Joint Venture (JV) combining CECO's Effox-Flextor damper business
with Mader's damper business, leveraging the synergies and complementary
strengths from each business. The JV will benefit both companies by going to
market with a more robust portfolio while enhancing the cost structure as a
combined organization.
Under the terms of the joint venture, CECO will hold 70 percent of the equity,
consolidate the financial reporting, maintain 2 of 4 board seats, and receive an
annual fee for providing administrative services to the JV. James Zeager, CEO of
Mader, will lead the combined company driving its growth and cost actions and
ensuring a streamlined integrated business. Mader is a portfolio company of
Chartwell Investments Entrepreneur & Founder Capital (“CHIEF Capital”).
"This newly formed JV provides solid leadership within the damper business,
as-well as expanded strategies and optionality," stated Matt Eckl, CFO of CECO
Environmental.
"From a strategic perspective, the combined strengths and brand reputations of
both Effox-Flextor and Mader will provide new opportunities to enable expansion
into various markets and sharpen our focus in other strategic areas within clean
air," says James Zeager, CEO of Mader. "The JV will also produce important cost
synergies to improve profitability as we navigate the challenging markets and
uncertain environment."
Daniel Duncan, President of Energy Solutions at CECO Environmental added, "the
combination of these two businesses will give their respective customers the
support of an expanded and experienced team as well as new product and service
options."
Mitsubishi Power is New Name for MHPS
Mitsubishi Power, a major subsidiary of the Mitsubishi Heavy Industries (MHI)
Group, officially changed its corporate name from Mitsubishi Hitachi Power
Systems today. The rebrand marks the start of an exciting new chapter in the
company's mission to solve the foremost energy challenges of our time, including
decarbonizing energy and bringing reliable power to people all over the world.
With its new brand identity, which was developed after consultation with key
customers, employees and partners, Mitsubishi Power moves forward in its
ambition to become a leading energy solutions company with a broad spectrum of
businesses in grid-level power generation, renewables, energy storage and
digital technologies.
Following the rebrand, Mitsubishi Power becomes a wholly owned subsidiary of MHI
Group. Its enhanced position within the Group will enable it to establish
greater synergies with its sister companies and expand its business by tapping
new customer categories. Mitsubishi Power will capitalize on existing
investments in emerging energy solutions, such as hydrogen, ammonia and solar
power, to address the diverse and increasingly complex energy needs of customers
around the world.
Mr. Ken Kawai, President and CEO of Mitsubishi Power, Ltd., said, "Providing
people access to clean, stable, and affordable power is among global society's
most urgent mandates today. With our new identity, Mitsubishi Power is
exceptionally poised to lead in solving these challenges. Building on a legacy
of strong engineering and distinctive service, we will develop even more
cutting-edge solutions to better serve our customers while broadening our
portfolio. As an energy solutions company, we will partner more closely with
governments, utilities, industry leaders and our fellow companies within the MHI
Group to create a future that is good for people and the planet."
In addition to the new name and logo, Mitsubishi Power also unveiled a new
mission statement and announced that it will adopt the MHI Group tagline "Move
the World Forward."
Throughout its history, Mitsubishi Power has built a strong position as a
trusted partner to power generation companies globally. As it enters this new
phase, the company will apply its world-leading engineering prowess, drive for
innovation and renowned customer service to deliver reliable energy, ultimately
galvanizing the progress of nations, communities and individuals everywhere.
Mitsubishi Power, Ltd. is a leading provider and innovator of technology and
solutions for the global energy sector. Headquartered in Yokohama, Japan, it is
a wholly owned subsidiary of Mitsubishi Heavy Industries, Ltd., whose
engineering and manufacturing businesses span energy, infrastructure, transport,
aerospace and defense. With more than 18,000 employees across 31 countries
worldwide, Mitsubishi Power designs, manufactures and maintains equipment and
systems that drive decarbonization and ensure delivery of reliable power around
the world. Among its solutions are a wide range of gas turbines including
hydrogen-fueled gas turbines, solid-oxide fuel cells (SOFCs), and air quality
control systems (AQCS). Committed to providing exemplary service and working
with customers to imagine the future of energy, Mitsubishi Power is also
spearheading the development of the digital power plant through its suite of
AI-enabled TOMONITM solutions.
Babcock & Wilcox Enterprises Announces Board Changes
Three new independent directors join Board of Directors:
Babcock & Wilcox announced the appointment of three new independent members to
its Board of Directors, reflecting a well-planned transition and strategic shift
to accelerate growth within B&W in light of improved operational stability. The
new independent members are Philip Moeller, Rebecca Stahl and Joseph Tato. CEO
Kenneth Young and Chief Strategy Officer Henry Bartoli have also joined the
Board, with Young appointed as Chairman of the Board.
Young, stated, “B&W is on an exciting path forward as we work to execute on our
growth strategy, including expanding our global sales team, pursuing strategic
investments in new technologies, and capitalizing on a robust global pipeline
within our new Renewable, Environmental and Thermal segments. The new directors
have strong and successful backgrounds across each of these segments and are
well experienced in global growth initiatives. We greatly appreciate the efforts
of the previous Board and their support during the past several years as we
focused on reducing losses on our EPC projects and refinancing our debt, as well
as their willingness to be available to support the Board transition. Our recent
organizational re-alignment and re-branding efforts reflect our mission to
provide solutions to our customers around the world while providing proven,
industry-leading technologies. With our financial position now strengthened,
reconstituting the Board is a logical next step as we focus on our long-term
growth opportunities.”
Henry E. Bartoli is the Chief Strategy Officer of Babcock & Wilcox. Bartoli is a
seasoned executive with more than 35 years of experience in the global power
industry, and more recently served as President and Chief Executive Officer of
Hitachi Power Systems America, LTD from 2004 to 2014. From 2002 to 2004, Bartoli
was Executive Vice President of The Shaw Group, after serving in a number of
senior leadership roles at Foster Wheeler Ltd. from 1992 to 2002, including
Group Executive and Corporate Senior Vice President, Energy Equipment Group, and
Group Executive and Corporate Vice President and Group Executive, Foster Wheeler
Power Systems Group. From 1971 to 1992, he served in a number of positions of
increasing importance at Burns and Roe Enterprises, Inc. Bartoli also serves as
a member of the Board of Directors of Fermilab, United States’ premier particle
physics laboratory owned by the U.S. Department of Energy.
Philip Moeller serves as Executive Vice President, Business Operations Group and
Regulatory Affairs at the Edison Electric Institute (EEI), which is an
association that represents all of the nation’s investor-owned electric
companies. Within the role, Moeller oversees issues impacting the future
structure of the electric power industry, new rules in evolving competitive
markets, and strategic areas of energy supply, environmental and regulatory
issues, among others.
Caofeidian Power Station Incorporates a Number of Innovative Efficiency
Enhancements
The Caofeidian power station is located in the Caofeidian Industrial Zone, about
70 kilometers south of Tangshan City, Hebei Province, China. The project was
built under strict adherence with China’s environmental protection policy;
notably, the facility was constructed on land reclaimed from the sea and it uses
desalinated seawater for plant needs.
Phase I, which included two 300-MW units, entered commercial operation in June
2009. Construction on Phase II, a ¥6 billion ($857 million) expansion project
that included two 1000-MW USC units, began on April 27, 2016. Unit 3 passed its
168-hour full-load test on April 25, 2019, while Unit 4 did the same on June 9,
2020.
The Unit 3 and 4 boilers are USC, single-reheat, balanced-ventilation of single
furnace, solid dry-slag removal, tight-closed layout, pi-type boilers with all
steel frame. The manufacturer was Babcock Wilcox Co. Ltd. The superheated steam
outlet pressure is 29.3 Megapascal (MPa, 4250 psi) and outlet temperature is
605°C (1121°F). Reheat steam outlet pressure is 5.945 MPa (862 psi) and outlet
temperature is 623°C (1153°F).
The steam turbines were manufactured by Shanghai Steam Turbine Co. Ltd. They are
USC, single-reheat, five turbine casings with six exhausts, single-shaft, three
backpressures, condensing type turbines. The generators were manufactured by
Shanghai Electric Generator Co. Ltd., with excitation system, hydrogen-water
cooling, and sealing oil system.
Hebei Electric Power Survey and Design Institute performed all investigation and
design work for the project. Shanghai Shenergy Power Technology Co. Ltd. was
responsible for all of the process design consultation for the project and the
implementation of relevant energy-saving projects. A number of other contractors
were selected for equipment procurement and construction based on public bidding
in accordance with the provisions of China’s bidding law.
The Caofeidian units are the world’s first to incorporate feedwater pump
combined centralized variable-frequency technology for auxiliary equipment. In
this scheme, the feedwater pump turbine also drives a frequency conversion
generator to provide frequency conversion power for the comprehensive auxiliary
machines, such as pumps and fans. To enhance performance, engineers incorporated
a small Siemens steam turbine into the design and equipped units with Voith
high-speed clutches. The technology reduces the power consumption of the plant
by about 2 percent.
Additional energy-savings and emissions-reduction technology was also utilized
on the project. Engineers performed in-depth technical optimization; expanded
the traditional regenerative mode to factor water, wind, coal, and other boiler
heat source inputs into calculations; and recoupled the machine and furnace to
ensure efficient operation down to 40 percent load. A high-pressure heater was
added to ensure feedwater temperature stability, and to solve problems during
low-load conditions when the denitration system cannot be operated. As a result,
denitration is achievable over a wide operating load. Meanwhile, the
installation of hot air heaters protects the high-pressure heaters from
overheating and increases the combustion efficiency and stability. All of the
aforementioned pioneering technologies were consulted or directly implemented by
Shanghai Shenergy Power Technology.
A highly efficient electrostatic precipitator with circular flue is connected to
each unit. The system includes a four-level electrostatic field plus one-level
rotating polar plate, resulting in dust removal efficiency of not less than
99.95 percent. The dust content at the outlet of the device is less than 25
milligrams/standard cubic meter (mg/Nm3).
The Caofeidian project achieves desulfurization efficiency of greater than 99.2
percent and dust removal efficiency of more than 75 percent in one absorption
tower through the adoption of double-layer tray, five-layer spray, and
high-efficiency demister technology. The system meets China’s ultra-clean
emission requirements, which are less than 35 mg/Nm3 for SO2 and
10 mg/Nm3 for dust.
The plant utilizes selective catalytic reduction denitration technology during a
wide range of operating loads. With this system, the denitration efficiency is
greater than 85 percent, and the emissions concentration of NOx is
less than 45 mg/Nm3. As previously noted, the denitration system
cannot be used at low load, but that problem has been solved with adjustable
regeneration technology.
https://www.powermag.com/efficiency-a-priority-at-caofeidian-coal-power-plant/
NTPC Flyash Now Being Used in Cement Plants
NTPC has begun bulk supply of flyash using newly developed infrastructure at its
Rihand project in Uttar Pradesh to distant cement plants. The development is in
line with the NTPC's commitment towards 100 percent utilization of flyash from
power plants, the company said in a statement. "NTPC Ltd has developed an
infrastructure at Rihand project in Uttar Pradesh to transport fly ash in bulk
to cement plants, located at distance, at a cheaper cost," a company statement
said. The infrastructure includes dry ash extraction, loading, weighment systems
and silo storage system from station ESP (electrostatic precipitators). The
effort marks the beginning of a new era for the transportation of fly ash from a
remote location to a consumption center, enabling power plants for upgrading the
utilization of fly ash with the availability of additional material loading
avenues for Indian Railways and accessibility of fly ash to the cement plants in
an environment-friendly manner at a competitive price.
During the financial year 2019-20, almost 44.33 million tons of flyash was
utilized for various productive purposes, being 73.31 percent of the ash
generated. Moreover, the company is looking at new avenues of fly ash management
like fly ash based geo-polymer road, use of bottom ash as replacement of fine
aggregate (sand) in cement concrete. Also, NTPC has plans to set up fly ash
classifier unit for export purposes. With a total installed capacity of 62.9 GW,
NTPC Group has 70 power stations comprised of 24 coal, seven combined cycle
gas/liquid fuel, one hydro, 13 renewables along with 25 subsidiary & JV power
stations.
Thai Plant Incorporates Safety Initiatives Crafted by Benetech
GHECO-One is located in Rayong on the Gulf of Thailand, about 175 kilometers
southeast of Bangkok. It is a 700-MW, supercritical unit, with a Doosan Babcock
Posiflow boiler. The low-mass-flux design is front-rear wall-fired with 30
burners. The plant has six Loesche LM28.3D, pressurized, three-roller,
coal-grinding mills and dynamic classifiers — a system Randy Rahm, president of
CoalTech Consultants and executive director of the Powder River Basin Coal
Users’ Group (PRBCUG), which is now known simply as the CUG), has called the
“Rolls-Royce of pulverizers.”
The plant has a Doosan G2 tandem compound steam turbine with one
high-pressure-intermediate-pressure casing and two low-pressure casings. The
generator has a water-cooled stator and hydrogen-cooled rotor. It utilizes a
Honeywell Korea distributed control system and a GE Mark VIe steam turbine
controller. The unit also has selective catalytic reduction to reduce NOx,
an electrostatic precipitator to remove particulate matter, and a seawater flue
gas desulfurization (SW FGD) system to limit SOx. The use of a SW FGD
was driven by a desire to avoid the more-typical, limestone-based, wet-FGD
scheme and minimize raw water consumption
GHECO-One was constructed for Glow Energy PCL, which has been owned by several
different companies over the years. When the plant was built, Glow Energy had
experience with coal-fired boilers; it operated a few circulating fluidized bed
units. However, those plants burned Australian bituminous coal. GHECO-One, on
the other hand, burns Indonesian, low-sulfur, subbituminous coal. which posed a
major challenge for the facility. GHECO-One contracted with Benetech to conduct
surveys and audit the facility. Then an action plan was developed.
The original coal-handling system was designed in accordance with international
standards, specifically DIN 22101, but that focused mainly on loose bulk
materials and addressed things such as drives, brakes, and take-up devices. Dust
control was managed with a single tower vacuum system, and there was no dust or
coal spillage criteria stipulated.
Benetech directed GHECO-One to some additional references, such as National Fire
Protection Association (NFPA) and American Society for Testing and Materials
(ASTM) standards, and helped the team better understand PRB coal-handling best
practices. With the new knowledge, upgrades were scheduled. Among improvements
made in the coal yard were enclosing the coal conveyor system; installing
telescopic chutes on the tipper car; compacting coal piles; adding a
15-meter-high wind shield around the yard; reducing the coal pile height to less
than 15 meters; planting a three-layer tree fence around the outside of the wind
shield; and redirecting water drainage from the yard. The upgrades were so
successful that the Thai government later adopted the GHECO-One design as its
minimum standard for new coal yards constructed in the country.
https://www.powermag.com/success-through-engineered-upgrades-and-a-focus-on-behavior/
Indian Government Plans Another Two-Year Deadline Extension for Polluting Coal
Plants
The Secretary of India’s Ministry of Environment, R C Gupta, will grant a
further two-year extension to coal-fired power plants required to comply with
the installation of flue gas desulfurization units by December 2022. Gupta said
that the impacts of COVID-19 and India’s intention to block the use of Chinese
equipment after recent deadly border clashes meant that a delay was based on
“genuine” concerns, but the details were yet to be finalized. The Ministry of
Power argued an estimated 70 percent of the 330 coal units with over 100,000 MW
of capacity would not meet the deadline. NGOs have criticized the Modi
Government for its failure to enforce the deadline which was first adopted in
December 2015 with a compliance deadline of December 2017.