REMOVAL OF SULFUR COMPOUNDS IN AN ACID GAS STREAM GENERATED FROM SOLVENT-BASED GAS TREATING PROCESS

摘要

The invention involves a process for treating a natural gas stream comprising sending the natural gas stream first to an adsorbent unit for removal of mercury. Then the gas stream is sent to an absorbent unit containing a chemical solvent and a physical solvent for removal of carbon dioxide, hydrogen sulfide, carbonyl sulfide and organic sulfur compounds to produce a partially purified natural gas stream. This stream is dehydrated and becomes the product stream. The partially purified natural gas stream to a dehydration unit to remove water to produce a natural gas product stream. The impurities absorbed by the absorption unit are removed and a liquid stream is separated that contains the sulfur impurities. This liquid stream may be purified and stabilized before being shipped for further treatment.

主权项

1. A process for treating a natural gas stream comprising:
a) sending said natural gas stream to an absorbent unit containing a chemical solvent and a physical solvent for removal of carbon dioxide, hydrogen sulfide, carbonyl sulfide and organic sulfur compounds to produce a partially purified natural gas stream; b) then sending said partially purified natural gas stream to a dehydration unit to remove water to produce a natural gas product stream; and c) removing said sulfur compounds from said absorbent unit to produce a liquid comprising said sulfur compounds.