January 2003

Special Report: Gas Processing Developments

Build a better NGL sour water stripping unit

Better design practices can enhance process performance

Eskaros, M. G., WorleyParsons

Two sour water (H2O) stripping units were installed at natural gas liquids (NGL) facilities located in the Persian Gulf area. Soon after startup, one plant encountered operational difficulties. When engineers began troubleshooting, it became clear that differences between the two designs were causing the operational malfunctions. Plant modifications were necessary to facilitate the second unit's continued trouble-free operations. Filters to remove process sediments caused stripper flooding and required constant system maintenance.

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