Hold the Mercury
2014 R&D 100 Winner
Novinda Corp.’s Amended Silicates HgX (AS-HgX) is a non-carbon mercury capture reagent that removes mercury from coal-fired power emissions, enabling utilities to comply with the U.S. Environmental Protection Agency’s strict Mercury and Air Toxic Standards.
A mineral-based product that removes mercury via chemical reaction, AS-HgX removes mercury with two to three times the efficiency of competing products. The technology consists of a bentonite substrate that is amended with a metal sulfide that acts as the reagent to efficiently and effectively capture mercury from coal-fire flue gas. A chemical reaction forms mercuric sulfide on the reaction sites of particle surfaces in flue gas.
Extensive testing in 50 power plants showed that compared to carbon-based products, AS-HgX provides a 25 to 50% cost savings, reduces operating expenses and consistently achieves MATS compliance. In addition, AS-HgX is non-flammable, non-corrosive and generally can be used with a power plant’s existing injection equipment with little or no modifications. Because AS-HgX is not carbon-based, it preserves fly ash resale value ($15/ton) and eliminates landfill costs ($20/ton).
Non-carbon mercury capture reagent
The Amended Silicates HgX (AS-HgX) Development Team from Novinda Corp.
Jim Butz, Principal Developer