Low-quality natural gas sulfur removal/recovery: Task 2. Topical report, September 30, 1992--August 29, 1993

Abstract

The accompanyingTask 2 Reportpresents conceptual designs of the CFZand CNG-Claus Processes for treatment of low quality natural gas. The conceptual designs are based on a low quality gasflow rate of 200 MMSCFDand two low quality gas compositions: 1) a composition representative of LaBargereservoir with 66% carbon dioxide, 20% methane, 5% hydrogen sulfide, 7% nitrogen, and 1% other (helium, ethane, COS,water) and 2) a generic low quality gas composition with 20% carbon dioxide, 80%methane and 0.5% hydrogen sulfide. The low quality gas flowrate chosen for the conceptual design is consistent in magnitude with quantities of low quality gas now being produced from the LaBargereservoir.