Mercury Measurement and Capture Second Session on March 5, 2015
The mercury Hot Topic session yesterday unveiled important new information on
mercury measurement and control.
David Mazyck
of Carbonxt explained how
non-brominated PAC can be injected prior to the scrubber or in the recirculating
slurry to provide high levels of mercury capture and prevention of re-emissions.
Hydrocyclones separate the PAC from the gypsum product.
Dave explained how non brominated PAC can be injected prior to the scrubber
or in the recirculating slurry to provide high levels of mercury capture and
prevention of re-emissions.
Revision Date: 3/6/2015
Tags: 221112 - Fossil Fuel
化石燃料, Carbonxt, Activated Carbon
Karl Wilber
of Tekran provided insights
from the considerable experience his company has gained in selling and
maintaining mercury CEMS.
Additional sampling lines and probes can be added to the system. The additional
data points provide the opportunity for process control.
A number of comparisons were made between sorbent traps and CEMs but the
bottom line as shown in the following graph is that the CEMs have lower life
cycle costs the longer the operation.
Karl weighed in on the proposal this month on RATA tolerance.
Karl provided insights from the considerable experience his company has
gained in selling and maintaining mercury CEMS.
Revision Date: 3/6/2015
Tags: 221112 - Fossil Fuel
化石燃料, Tekran Instruments, Analyzer, Continuous Emissions Monitor
Dave Doerhoff
of Dekoron Unitherm impressed
the audience with the complexity of sample line design and installation. A
number of improvements have been made over the last few years.
Karl explained that Dekoron Unitherm and Tekran have dealt with the sampling
problems as they have occurred and have spent millions of dollars to ensure that
reliable sample lines are provided.
Karl recommended that utilities consider hiring a Dekoron supervisor when they
install the lines. It is important not to bend the lines beyond certain radii or
to otherwise cause damage.
Dave explained the complexity of sample line design and installation.
Revision Date: 3/6/2015
Tags: 221112 - Fossil Fuel
化石燃料, Dekoron Unitherm, Sampling Line
Philip Dufresne
of ALL BLUE shed light on the
particulate impact on mercury emissions.
Particulate is captured in sorbent traps and increases the mercury value.
The pre-filter in CEMs tends to adsorb mercury thereby lowering the
mercury value. This causes the differential readings to be significant. This
difference is related to the amount of particulate escaping the precipitator or
baghouses so during excursions the
differential will be the greatest. Philip answered questions relative to the
impact of escaping particulate mercury by pointing out that it will reach the
ground, and therefore water sources, sooner than gaseous mercury.
Philip discussed particulate impact on mercury emissions.
Revision Date: 3/6/2015
Tags: 221112 - Fossil Fuel
化石燃料, ALL BLUE, Sorbent Trap, Continuous Emissions Monitor
Mercury Measurement & Capture
Webinar - Hot Topic Hour March 5, 2015
The session unveiled important new information on mercury measurement and
control.
Revision Date: 3/5/2015
Tags: 221112 - Fossil Fuel
化石燃料, Tekran Instruments, ALL BLUE, Carbonxt, Dekoron/Unitherm, Sampling
Line, Activated Carbon, Sorbent Trap, Continuous Emissions Monitor, Analyzer