TECHNOLOGY Texas plant retrofit improves the throughput, C 2 recovery

Joe T. Lynch Ortloff Engineers Ltd.Midland, Tex.Richard N. Pitman GPM Gas Corp.Goldsmith, Tex. GPM Gas Co.'s Goldsmith (Ector Co., Tex.) plant was recently converted from a nominal 90% ethane recovery and 86 MMscfd design capacity two-stage expansion process to a 95% ethane recovery and 135 MMscfd capacity. The project used the Gas Subcooled Process (GSP) design of Ortloff Engineers Ltd., Midland, Tex. The conversion required modification of existing expanders and chillers and addition of a plate-fin exchanger, an absorber column, and a set of pumps. Time from project approval through start-up was 5 months. NGL production was interrupted for 10 days while the plant was down f...

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