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Case Study

Sulphur recovery and tail gas units

sulphur recovery

In order to accommodate increased refinery throughput, the Chevron El Segundo refinery required a new sour water stripper, sulphur recovery unit and tail gas unit (TGU).

Advisian (WorleyParsons) provided the process and detailed mechanical design to minimize SO2 emissions, and maximize COS conversion in the TGU catalytic reactor in order to meet the tightest emission limit of SO2 in the world.

Since the invention of the hydrogenation amine TGU by the Ralph M. Parsons Company, circa 1970, the WorleyParsons tail gas reactor trains incorporate leading technology to maximize COS conversion.

By enhancing an already robust design, WorleyParsons ensured compliance with the emissions specification for a five-year continuous run.

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