EMISSION FREE INTEGRATED GASIFICATION COMBINED CYCLE

摘要

Disclosed is a process to start-up, operate, and shut down a gasifier and an integrated gasification combined cycle complex without flaring while additionally reducing the release of contaminants such as carbon monoxide, hydrogen sulfide, and nitrogen oxides. The process is accomplished by scrubbing ventable sour gases and passing scrubbed sour gases and ventable sweet gases to a vent gas combustor for controlled combustion prior to release of any such gases to the atmosphere. Additionally, the gases are subjected to a CO oxidation treatment and selective catalytic reduction treatment prior to release to the atmosphere.