Hot Topic on Friday, March 12, 2010 Will Be Cement MACT – Impacts and
Solutions Session 2
The cement industry needs to know what the power industry is doing to develop
MACT and the power industry definitely needs to know what EPA is doing to the
cement industry. The MACT rule for cement plants has been proposed and will be
promulgated in June. Since HAP emissions from power plants are much greater than
from cement plants, utilities can expect at least equally stringent regulations.
This Hot Topic Hour will build on the very well attended webinar on the “Cement
MACT” held on Feb. 12th. At that session we heard Andy O’Hare of the Portland
Cement Association report on an industry analysis which shows that there will be
more than 100 scrubbers, bag filters, and ACI systems required to meet the new
regulations. There will also be substantial numbers of regenerative thermal
oxidizers. He questions whether there are the engineering and construction
resources to supply the more than $3 billion in equipment which will be needed.
Yougen Kong of Solvay presented information on removal of HCl, SO2 and mercury
in 12 cement plants in Europe. David Gossman of Gossman Consulting indicated
that a circulating fluid bed absorber has been permitted for a cement plant but
has not yet been built. Dennis Laudal of the Energy & Environmental Research
Center at the University of North Dakota discussed the issues associated with
the use of activated carbon for mercury control in cement kilns, and Ron Hawks
of Environmental Quality Management, Inc. discussed the impact of proposed MACT
limits for mercury and possible solutions.
At this session the following speakers will expand on these presentations and
add additional new information on potential solutions for the cement industry:
Dr. Ronald R. Landreth, Business Development Manager for Albemarle Sorbent
Technologies, will discuss potential solutions for mercury control in the cement
industry. Cement kilns have been left with limited options with the solution
most often presented being the addition of an expensive additional control
device such as a baghouse after the flue gas exits the existing plant. Albemarle
Sorbent Technologies has developed and is testing a concept to utilize the
existing particulate control device already in operation at the facility in
conjunction with the concrete-friendly mercury sorbent C-PACTM to comply with
the proposed Cement Kiln MACT.
Dr. Constance (Connie) L. Senior, Manager Engineering Research & Development at
Reaction Engineering International, will discuss measurement and control of
mercury emissions in cement kilns. Mercury transients in cement kilns complicate
both measurement of mercury and control. Characteristics of the transients will
be presented, using both data and modeling of kiln operation. The implications
for measurement and control will be discussed, particularly the impact of the
Raw Mill on Hg emissions, and speciation and data on the effectiveness of air
pollution control devices for removing Hg in cement kilns will be presented.
Gerald Young, Vice-President of Process and Environmental at Penta Engineering
Corporation, will discuss sources of carbon dioxide emissions and conventional
control technologies. Global CO2 emissions from cement production represent 3.5
– 4.0 percent of global CO2 emissions from fossil-fuel burning and cement
production. This presentation will present the major sources of CO2 emissions
from cement manufacturing and a description of the conventional control measures
that can be employed to reduce CO2 emissions.
Rich Brown of Altech Environment USA will present a general overview of the
emissions monitoring requirements of the cement MACT and discuss the equipment
Altech offers to provide solutions.
Cement Facilities, listed as an “All In” source are subject to the GHG reporting
rule and are required to provide GHG monitoring. The use of GHG CEMS is optional
for some specific source categories not subject to other EPA programs. EPA is
allowing sources to use a source category specific GHG calculation method.
Monitoring is based upon other parameters and fuel use, which may vary given the
specific source category (e.g. mass balance, site-specific emissions factor, or
default emissions factor).
You can register at: Power Plant Air Quality Custom Training – Cement, click on:
https://www.mcilvainecompany.com/Cement_Custom_Training _Registration.htm
Bob McIlvaine
847 784 0012 ext 112
rmcilvaine@mcilvainecompany.com
ww.mcilvainecompany.com