Abstract
ABSTRACT The profitability of exploration and development of sour gas is sensitive to the processing required for marketing to gas pipelines or as liquified natural gas (LNG). Processing plants required vary widely with the composition of the produced gas. Processing will require removal of CO2 and H2S to meet marketing specifications and can range from simple sweetening and dehydration units to facilities including sulfur recovery and tail gas treating. Additionally, the production of LNG requires even more complete acid gas removal prior to the low temperature processing steps. Several new processes for acid gas removal have been developed which improve the profitability of sour gas production by more efficient acid gas removal. Additionally, the coupling of a cryogenic fractionation step with LNG processing results in an efficient integration of acid gas removal and low temperature processing.
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