PROCESS FOR CONTROLLING SULPHUR OXIDES IN COAL GASIFICATION

摘要

In a fluidized coal gasification process in which heat for the gasifier is provided by recycle combustor residue from a slagging combustor, SO2 in the combustor's flue gas is removed by contacting the flue gas with the incoming coal feed whereby the SO2 is adsorbed on the coal and converted to H2S in the gasifier. Sulfur is recovered from the H2S in a Claus Plant.