6
Control
of Mercury and Other Pollutants in Coal Gasification Systems--Physical
Sciences, Inc., 20 New England Business Center, Andover, MA
01810-1077; 978-689-0003
Mr.
Joseph Morency, Principal Investigator, morency@psicorp.com
Dr.
David Green, Business Official, green@psicorp.com
DOE
Grant No. DE-FG02-02ER83431
Amount:
$99,992
Coal
gasification has been under development for several years as a desirable means
of power generation, with higher efficiency and lower emissions compared to
current power-producing technologies. However,
an effective method for controlling the emission of toxic metals such as mercury
has not been devised. This project
will demonstrate the feasibility of using treated zeolite sorbents to capture
mercury and other pollutants in coal and coal/biomass gasification systems.
In Phase I, zeolite-based multi-pollutant sorbents will be evaluated in a
laboratory scale testing. Three
different zeolite samples will be selected and treated with the proprietary
additive. Then, the samples will be tested to determine their ability to capture
mercury. Sorbent reusability will
also be examined. Based on the
laboratory data, a cost study will be performed to assess the economic
advantages of implementing the technology in coal and coal/biomass gasification
plants. In Phase II, the treated
zeolite sorbent will be scaled-up and examined at the pilot-scale level in a
coal gasification system.
Commercial
Applications and Other Benefits
as described by the awardee: High
mercury and other pollutant capture rates by the treated zeolite sorbent should
speed the implementation of this emission control technology in gasification
plants with a minimum addition of capital equipment and reduced overall process
costs. In addition, this process may
be applicable to any harsh industrial environment where the emission of mercury
is a problem, such as solid waste incinerators, hazardous waste incinerators,
and cement kilns.