1
Removal
of Mercury from Gasifier Gases--ADA
Technologies, Inc., 8100 Shaffer Parkway, Suite 130, Littleton, CO
80127-4107; 303-874-8264
Dr.
Craig Turchi, Principal Investigator, craig.turchi@adatech.com
Mr.
Clifton H. Brown Jr., Business Official, cliff.brown@adatech.com
DOE
Grant No. DE-FG03-02ER83356
Amount:
$100,000
Coal
gasifiers have the potential to provide electric power more efficiently, and
with less pollution, than conventional coal-combustion power plants. However,
gasifier processes emit mercury, a toxic metal regulated by the EPA, and current
technologies to remove mercury from coal-combustion gases are ineffective in
gasifiers. This project will develop
and demonstrate a technology for removing mercury from high temperature, high
pressure gases, such as occur in gasifier processes. The
approach will be based on the use of amended silicate sorbents that have shown
very high affinity for mercury in various gas streams, while avoiding
interference from other gas constituents. Phase
I will determine the capacity of the amended silicate sorbent at a range of
temperatures and pressures encountered in coal-gasification process gases.
The
sorbent will be tested in simulated gasifier gas, and the cost for incorporating
this sorbent technology in an Integrated Gasifier Combined Cycle (IGCC) power
plant will be estimated.
Commercial
Applications and Other Benefits
as described by the awardee: The
removal of mercury at high temperature and pressure conditions should provide an
enabling technology for mercury control in IGCC systems. The
technology also may be suited to mercury control in industrial processes that
involve high temperature and pressure, such as ore-digestion processes used in
some mining operations.