An overview of equipment for containment and disposal of emergency relief system effluents

This paper presents an overview of the various types of equipment and systems used in the containment and disposal of effluents from emergency relief systems, i.e., safety valves and rupture discs. The paper discusses the design, sizing, safety considerations, mechanical aspects, and operational considerations for such equipment as containment/separation vessels (blowdown drums, knock-out drums, catchtanks and quench tanks) and disposal equipment such as vent stacks, flare stacks and systems, vent condensers and scrubbers (gas absorbers).