A new process for removing hydrogen sulfide from gas

A novel, patented sour gas sweetening process was introduced to the gas processing industry in September, 1984. This new process is referred to as the one-step process in this paper. The one-step process selectively removes hydrogen sulfide from sour gases and converts dissolved hydrogen sulfide directly to sulfur in a bubble tower filled with the sweetener solution. The sweetener, a proprietary formulation, is an alkaline solution of oxidizing and buffering agents. Oxidation of hydrogen sulfide to sulfur is achieved by a liquid phase oxidation technique.