Amine processes outperform in sweetening LNG plant feed

Richard Ochieng Abdallah S. Berrouk Cornelis J. Peters Petroleum Institute Abu Dhabi, UAE Justin Slagle Bryan Research & Engineering Inc. Bryan, Tex. Abu Dhabi Gas Liquefaction Ltd. (ADGAS) has compared the technical and economic performances of two modes for removing CO2 and H2S from sour natural gas feed to its Das Island liquefaction plant: the Benfield HiPure process1 and a simple amine-based processes. At the time of the study, the LNG plant employed the Benfield process. Using the ProMax V3.2 process simulator,2 ADGAS evaluated process alternatives based on product purity, energy consumption, and overall economic performance. The economic analysis of the different processes is b...

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