GLYCOL REGENERATOR VAPOR RECOVERY UNIT

摘要

A vapor recovery system and method to control emissions (benzene and other compounds) from glycol regenerator overheads in a natural gas dehydration system is provided. In this system, a cooler is configured to receive overheads from a glycol regenerator and operative to condense at least a portion of the overheads into a cooled liquid stream. A storage tank is configured to receive the condensed overheads from the cooler for storage. A compressor is configured to compress the uncondensed vapor in the storage tank and push it into a wet natural gas stream coming into a compressor at a suction of the facility.

主权项

1. A natural gas dehydration system comprising:
a first compressor configured to receive a wet natural gas stream; a contactor tower configured to receive wet natural gas from the first compressor and a supply of lean glycol; a glycol regenerator configured to receive the rich glycol from the flash tank and operative to heat the rich glycol to cause water vapour, BTEX, and other compounds to boil off and be removed from the glycol regenerator as overheads; a cooler configured to receive overheads from the glycol regenerator and operative to condense at least a portion of the overheads into a cooled liquid stream; and a storage tank configured to receive the condensed overheads from the cooler for storage.