January 2008

Special Report: Gas Processing Developments

Remove hydrogen sulfide from syngas

Sulfur abatement technology in waste gasification facilities provides hydrocarbon feedstock or fuel

Barnette, T., Merchem Chemicals and Refinery Services LLC; Jones, D. F., Shaw Energy & Chemicals; Watson, J., Gas Technology Products Division, Merichem Chemical & Refinery Services LLC

Japan's rapidly dwindling landfill capacity encouraged the development of projects aimed at gasifying municipal and industrial solid waste. In addition, a search for clean, flexible alternative fuel and chemical feedstock sources justified interest in gasifying solid waste from a variety of industries and municipalities. The generated syngas from gasifying solid wastes can be used for power production or as feedstock for a range of petrochemical/chemical processes. However, this syngas contains hydrogen sulfide—a corrosive, toxic sulfur-based compound—that must be removed to yield clean, environmentally friendly fuels and feedstocks. In this case history, a Japanese facility utiliz

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