Patent 7776138 was granted and assigned to ConocoPhillips on August, 2010 by the United States Patent and Trademark Office.
A process for the removal of contaminants from a gas stream is disclosed. A gas stream is contacted with a chlorine-containing compound to form a mixed gas stream. The mixed gas stream is then contacted with a sorbent in a sorption zone to produce a product gas stream and a sulfur laden sorbent, wherein the sorbent comprises zinc and a promoter metal.