Process for treatment of residual gas

Abstract From the Canadian patent

A process is disclosed for the treatment of the residual gases which are produced when hydrogen sulfide is reduced by combustion, to elementary sulfur by the Claus process. The residual gases are fed through a heated conduit and gas scrubber wherein the tempera-, ture of those residual gases are maintained above the melting point of sulfur. A portion of the raw coke oven gas condensate is admitted to the gas scrubber to be returned to the coke oven battery main from the flushing liquor separator as flushing liquor. The residual gases are then conducted through the coke oven gas purification process equipment along with the raw coke oven gas where the residual gases are intermixed with the …