US 12,269,005 B2
Process and apparatus for providing a feedstock
Robert John Conrado, Washington, DC (US)
Assigned to LanzaTech, Inc., Skokie, IL (US)
Filed by LanzaTech, Inc., Skokie, IL (US)
Filed on Apr. 8, 2022, as Appl. No. 17/658,594.
Claims priority of provisional application 63/173,243, filed on Apr. 9, 2021.
Prior Publication US 2022/0323927 A1, Oct. 13, 2022
Int. Cl. B01J 19/24 (2006.01); B01D 53/047 (2006.01); B01D 53/22 (2006.01); C01B 3/48 (2006.01); C12M 1/00 (2006.01); C25B 1/23 (2021.01); C25B 15/08 (2006.01)
CPC B01J 19/2465 (2013.01) [B01D 53/047 (2013.01); B01D 53/229 (2013.01); C01B 3/48 (2013.01); C12M 21/12 (2013.01); C25B 1/23 (2021.01); C25B 15/081 (2021.01); B01D 2256/16 (2013.01); B01D 2256/20 (2013.01); B01D 2256/22 (2013.01); B01D 2257/502 (2013.01); B01D 2257/504 (2013.01); C01B 2203/0205 (2013.01); C01B 2203/0283 (2013.01); C01B 2203/0405 (2013.01); C01B 2203/042 (2013.01); C01B 2203/06 (2013.01); C12M 43/04 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process for providing a feedstock, comprising:
a) providing a stream comprising methane to a methane reforming process to produce a first gaseous stream comprising H2, CO, and CO2;
b) passing the first gaseous stream to a water gas shift (WGS) process to produce a second gaseous stream comprising a reduced amount of CO and an increased amount of H2 and CO2;
c) passing the first second gaseous stream to a hydrogen separation zone to produce a hydrogen enriched stream and a third gaseous stream comprising CO, CO2 and a reduced amount of H2;
d) passing the third gaseous stream to a reverse water gas shift process to produce a fourth gaseous stream having an increased amount of CO such that the H2 and CO are present in the fourth gaseous stream at a H2:CO molar ratio of 4:1 or less; and
e) passing the third fourth gaseous stream to a gas fermentation unit.