ProDecon® Case Studies

A refinery in Europe asked ProDecon® to undertake the full decontamination of the refinery’s Sour Water Stripper (SWS) unit. The full unit decontamination was undertaken from battery limit to battery limit.

Sour water streams that come from many different units rewuire conditioning so they can be discharged or reused. The SWS unit removes ammonia and hydrogen sulphide from these streams. Mostly the sour water comes from the distillation unit, the fluid catalytic cracking unit, the catalytic reforming unit, coker and acid removal units. The different sour water streams from these units are collected in a surge tank for centralised processing via heat exchangers and one or two stripper columns in series. The ammonia and hydrogen sulphide are removed by a combination of pH control and heat.