US 12,116,538 B2
Process
Ivan Philip Greager, Houston, TX (US); Roger Allen Harris, Houston, TX (US); Neil Alexander King, Oxford (GB); Soumitra R. Deshmukh, Houston, TX (US); and Zheyan Qiu, Sugar Land, TX (US)
Assigned to Velocys Technologies Ltd., Oxford (GB)
Filed by Velocys Technologies Ltd, Oxford (GB)
Filed on May 12, 2021, as Appl. No. 17/318,328.
Claims priority of application No. 2007980 (GB), filed on May 28, 2020.
Prior Publication US 2021/0355392 A1, Nov. 18, 2021
Int. Cl. C10J 3/86 (2006.01); C01B 3/36 (2006.01); C01B 3/48 (2006.01); C10J 3/46 (2006.01); C10J 3/60 (2006.01); C10J 3/72 (2006.01); C10J 3/82 (2006.01)
CPC C10J 3/86 (2013.01) [C01B 3/36 (2013.01); C01B 3/48 (2013.01); C10J 3/463 (2013.01); C10J 3/60 (2013.01); C10J 3/721 (2013.01); C10J 3/723 (2013.01); C10J 3/82 (2013.01); C10J 2300/0909 (2013.01); C10J 2300/0916 (2013.01); C10J 2300/0946 (2013.01); C10J 2300/1215 (2013.01); C10J 2300/1606 (2013.01); C10J 2300/1612 (2013.01); C10J 2300/1643 (2013.01); C10J 2300/1659 (2013.01); C10J 2300/1687 (2013.01); C10J 2300/1807 (2013.01); C10J 2300/1846 (2013.01); C10J 2300/1853 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A process for the manufacture of one or more useful products comprising:
a. gasifying a carbonaceous feedstock comprising waste materials and/or biomass in a gasification zone to generate a raw synthesis gas;
b. partially oxidizing the raw synthesis gas in a partial oxidation zone to generate partially oxidized raw synthesis gas;
c. supplying at least a portion of the partially oxidized raw synthesis gas to a clean-up zone to remove contaminants and provide a clean synthesis gas;
d. importing clean power and/or dirty power into the process;
e. supplying the clean synthesis gas to a first further reaction train to generate at least one first useful product and a tailgas; and
f. diverting selectively on demand a portion of at least one of the carbonaceous feedstock, the clean synthesis gas, the tailgas and (if present) a light gas fraction to heat or power generation within the process, responsive to step d, to control the carbon intensity of the process;
wherein the removal of contaminants comprises removal of ammoniacal, sulphurous and carbon dioxide impurities;
wherein at least a portion of the tailgas is selectively diverted on demand to the partial oxidation zone and/or the first reaction train as internal recycle.