Low-quality natural gas sulfur removal/recovery
- CNG Research Co., Pittsburgh, PA (United States)
- Acrion Technologies, Inc., Cleveland, OH (United States)
- BOVAR Inc., AB (Canada). Western Research
Low quality natural gas processing with the integrated CFZ/CNG Claus process is feasible for low quality natural gas containing 10% or more of CO{sub 2}, and any amount of H{sub 2}S. The CNG Claus process requires a minimum CO{sub 2} partial pressure in the feed gas of about 100 psia (15% CO{sub 2} for a 700 psia feed gas) and also can handle any amount of H{sub 2}S. The process is well suited for handling a variety of trace contaminants usually associated with low quality natural gas and Claus sulfur recovery. The integrated process can produce high pressure carbon dioxide at purities required by end use markets, including food grade CO{sub 2}. The ability to economically co-produce high pressure CO{sub 2} as a commodity with significant revenue potential frees process economic viability from total reliance on pipeline gas, and extends the range of process applicability to low quality gases with relatively low methane content. Gases with high acid gas content and high CO{sub 2} to H{sub 2}S ratios can be economically processed by the CFZ/CNG Claus and CNG Claus processes. The large energy requirements for regeneration make chemical solvent processing prohibitive. The cost of Selexol physical solvent processing of the LaBarge gas is significantly greater than the CNG/CNG Claus and CNG Claus processes.
- Research Organization:
- CNG Research Co., Pittsburgh, PA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC21-92MC29470
- OSTI ID:
- 10119884
- Report Number(s):
- DOE/MC/29470-94/C0308; CONF-931156-4; ON: DE94006008; BR: AB0520000
- Resource Relation:
- Conference: Fuels technology contractors` review meeting,Morgantown, WV (United States),16-18 Nov 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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