Integrated AGE and hydrocarbon removal in sour gas processing

摘要

Increasing energy costs and the growing demand for natural gas have driven the development of sour gas fields around the world.About 40% of the world's natural gas reserves are in the form of sour gas where H2S and CO2 compositions exceed 10 vol-% of the raw acid gas produced.In some cases the acid gas composition in these reserves is very high and the economics of producing pipeline quality gas are marginal.Natural gas almost always contains contaminants or other unacceptable components which must be removed when conditioning natural gas for pipeline LNG or GTL,LPG and condensate or marine fuels.Emissions regulations are getting tighter and there is increasing demand to achieve higher sulphur removal and recovery.To comply with progressively tighter product purity specifications and stricter environmental regulations,while at the same time handling feedstocks from more diverse and sometimes lower-grade sources,gas treatment plant operators in the hydrocarbon processing industries are having to adopt measures to deal specifically with minor impurities which would otherwise impair the efficiency of the main gas treatment unit or cause violations of environmental emission standards.