January 2017

Special Focus: LNG, NGL and Alternative Feedstocks

Handling mercaptans in gas processing plants

With the continued development of sour gas fields around the world, the removal of mercaptans from gaseous and liquid hydrocarbon streams is becoming a challenge for today’s gas processing plants.

Mokhatab, S., Consultant; Northrop, P. S., ExxonMobil Upstream Research Co.

With the continued development of sour gas fields around the world, the removal of mercaptans from gaseous and liquid hydrocarbon streams is becoming a challenge for today’s gas processing plants. Key elements include meeting environmental regulatory standards, maximizing productivity and minimizing total lifecycle costs. A variety of mercaptans handling processes are available, and these processes have been generally applied based on the level of mercaptans in the feed gas. This variety may make it difficult for plant owners to select the best technology, given the project’s demand for an optimized, fit-for-purpose scheme to meet economic, technological and environmental targets. This arti

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