US 12,006,478 B2
Contaminant removal with catalyst beds for LNG processing
Wesley R. Qualls, Houston, TX (US); Christopher M. Widner, Houston, TX (US); and Peter N. Slater, Houston, TX (US)
Assigned to CONOCOPHILLIPS COMPANY, Houston, TX (US)
Filed by ConocoPhillips Company, Houston, TX (US)
Filed on May 18, 2022, as Appl. No. 17/747,614.
Claims priority of provisional application 63/302,423, filed on Jan. 24, 2022.
Claims priority of provisional application 63/190,155, filed on May 18, 2021.
Prior Publication US 2022/0372379 A1, Nov. 24, 2022
Int. Cl. C10G 25/05 (2006.01); B01J 20/02 (2006.01); B01J 20/06 (2006.01); B01J 20/32 (2006.01); C10G 25/00 (2006.01)
CPC C10G 25/05 (2013.01) [B01J 20/0285 (2013.01); B01J 20/06 (2013.01); B01J 20/324 (2013.01); C10G 25/003 (2013.01); B01J 2220/56 (2013.01); C10G 2300/1025 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for removing contaminants during liquid natural gas processing, the method comprising:
introducing a natural gas feed into a first set of beds, the first set of beds co-loaded with a metal sulfide sorbent and a metal oxide sorbent;
creating a partially filtered natural gas feed by removing first contaminants from the natural gas feed using the first set of beds;
outputting the partially filtered natural gas feed to a second set of beds, the second set of beds disposed downstream from the first set of beds and loaded with activated carbon;
creating a filtered natural gas feed by removing second contaminants from the partially filtered natural gas feed using the second set of beds; and
outputting the filtered natural gas feed to one or more of a natural gas liquid stabilizer, a liquefaction cooler, and a regeneration gas heater.