US 11,753,299 B2
Process for H2 and syngas production
Xiang-Dong Peng, Lake Mary, FL (US); Henry Choisun Chan, Bellaire, TX (US); Kelly Danielle Aguilar, League City, TX (US); Shihong Yan, Sugarland, TX (US); Qiong Zhou, Katy, TX (US); and Shylaja Gowda, Spring, TX (US)
Assigned to Air Products and Chemicals, Inc., Allentown, PA (US)
Filed by Air Products and Chemicals, Inc., Allentown, PA (US)
Filed on Aug. 20, 2021, as Appl. No. 17/407,434.
Prior Publication US 2023/0053522 A1, Feb. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C01B 3/48 (2006.01); B01D 46/00 (2022.01); B01J 12/00 (2006.01); B01J 19/00 (2006.01); C01B 3/52 (2006.01)
CPC C01B 3/48 (2013.01) [B01D 46/00 (2013.01); B01J 12/005 (2013.01); B01J 19/0013 (2013.01); C01B 3/52 (2013.01); B01J 2219/00087 (2013.01); C01B 2203/0233 (2013.01); C01B 2203/0238 (2013.01); C01B 2203/0283 (2013.01); C01B 2203/0415 (2013.01); C01B 2203/0465 (2013.01); C01B 2203/0833 (2013.01); C01B 2203/0883 (2013.01); C01B 2203/0894 (2013.01); C01B 2203/1241 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A process for producing syngas, the process comprising:
reacting a preheated feed stream comprising methane and an oxidant selected from the group consisting of water and carbon dioxide with an oxygen-enriched stream to produce a first syngas stream comprising hydrogen, carbon monoxide, carbon dioxide, water, and soot;
heating a boiler feed water stream by indirect heat exchange with the first syngas stream to produce a steam stream and a second syngas stream; and
heating one of the steam stream and a mixed feed stream by indirect heat exchange with the second syngas stream to produce a third syngas stream, wherein the mixed feed stream comprises methane and an oxidant selected from the group consisting of water and carbon dioxide;
removing soot from the third syngas stream without contacting the third syngas stream with liquid water to produce a cleaned third syngas stream; and
heating the other of the steam stream and the mixed feed stream by indirect heat exchange with the cleaned third syngas stream or a stream derived from the cleaned third syngas stream;
wherein the preheated feed stream comprises the mixed feed stream.