General Electric Co. has successfully completed more than 400 hr of pilot plant testing on a new hot gas cleanup (HGCU) system that removes H2S from 1,000 F. coal gas with an efficiency greater than 99%.
The HGCU technology significantly reduces emissions Of SO2-a pollutant linked to acid rain-by removing virtually all of the H2S present in the gas before it is sent to the gas turbine for power generation. (H2S is converted to SO2 in the turbine.)
GE says the testing, performed at its Research & Development Center in Schenectady, N.Y., further demonstrated the environmental comparability of converting coal to gas to generate electricity.
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