OXYGEN AND SULFUR TOLERANT ADSORBENT SYSTEM

摘要

A process for treating a gas stream, such as natural gas, comprising a process design that prevents the formation of undesired sulfur and sulfates from the reaction of oxygen and sulfur is disclosed. After water is removed from the gas stream, a portion of the dried gas stream is sent through a cooled adsorbent bed that has a first layer to remove sulfur compounds and then a layer to remove oxygen. There may be additional layers of adsorbent to remove other contaminants. The gas stream that is then heated to regenerate an adsorbent bed no longer contains sulfur and oxygen and undesirable reactions of sulfur and oxygen are avoided.

主权项

1. A process for treating a gas stream comprising:
(a) passing a gas stream through at least one adsorbent bed to remove water and producing a dried gas stream, and then (b) sending a portion of said dried gas stream to a cooled adsorbent bed containing a first layer of adsorbent to remove sulfur compounds, then sending said dried gas stream to a second layer of adsorbent to remove oxygen and oxygen compounds.