Process for removal of sulfides from carbon monoxide rich gas stream at ambient temperatures
AssigneeSabic Global Technologies B.V.
InventorsPankaj Singh Gautam, Zheng Liu, Tian Gu, Debashis Chakraborty, Sanjeev Deshpande
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Abstract
Disclosed are methods and systems for desulfurization of CO-rich streams. A method can include contacting a CO-rich gas stream with activated carbon and/or contacting the CO-rich gas stream with a zinc-oxide sorbent material at a temperature of ( ) to 50° C. to remove at least a portion of the sulfur-containing compounds present in the stream.
Claims19
A method of removing sulfur-containing compounds from a carbon monoxide (CO)-rich gas stream having at least 50 mol % CO, the method comprising:
- (a) contacting the CO-rich gas stream with a first sorbent material comprising activated carbon to remove at least a portion of the sulfur-containing compounds present in the stream;
- and
- (b) contacting the CO-rich gas stream with a second sorbent material comprising a non-carbon supported zinc oxide at a temperature of 0 to 50° C. to remove at least a portion of the sulfur-containing compounds present in the stream and produce a de-sulfided gas stream.
A method of removing sulfur-containing compounds from a carbon monoxide (CO)-rich gas stream having at least 50 mol % CO, the method comprising:
- (a) contacting the CO-rich gas stream with a first sorbent material comprising activated carbon to remove at least a portion of the sulfur-containing compounds present in the stream;
- and
- (b) contacting the CO-rich gas stream with a second sorbent material comprising zinc oxide at a temperature of 0 to 50° C. to remove at least a portion of the sulfur-containing compounds present in the stream and produce a de-sulfided gas stream,
- wherein step (a) is performed prior to step (b) or step (b) is performed prior to step (a).
A method of removing sulfur-containing compounds from a carbon monoxide (CO)-rich gas stream having at least 50 mol % CO, the method comprising:
- (a) contacting the CO-rich gas stream with a first sorbent material comprising activated carbon to remove at least a portion of the sulfur-containing compounds present in the stream;
- and
- (b) contacting the CO-rich gas stream with a second sorbent material comprising zinc oxide at a temperature of 0 to 50° C. to remove at least a portion of the sulfur-containing compounds present in the stream and produce a de-sulfided gas stream, wherein a metal oxide impregnated activated carbon sorbent material is not used in the method.
Dependencies are inferred from the claim text.