US 11,872,518 B2
Portable pressure swing adsorption method and system for fuel gas conditioning
Jason G. S. Ho, Houston, TX (US); Gerald Bowen Gump, Allen, TX (US); Pedro T. Santos, Houston, TX (US); and Xuepei Yuan, Humble, TX (US)
Assigned to Coldstream Energy IP, LLC, Dallas, TX (US)
Filed by Coldstream Energy IP, LLC, Dallas, TX (US)
Filed on Dec. 6, 2022, as Appl. No. 18/075,911.
Application 18/075,911 is a division of application No. 17/940,736, filed on Sep. 8, 2022, granted, now 11,577,191.
Claims priority of provisional application 63/323,628, filed on Mar. 25, 2022.
Claims priority of provisional application 63/242,396, filed on Sep. 9, 2021.
Prior Publication US 2023/0101201 A1, Mar. 30, 2023
Int. Cl. B01D 53/047 (2006.01); B01D 53/053 (2006.01); B01D 53/04 (2006.01); C07C 7/12 (2006.01)
CPC B01D 53/053 (2013.01) [B01D 53/047 (2013.01); B01D 53/0438 (2013.01); B01D 53/0446 (2013.01); C07C 7/12 (2013.01); B01D 2256/245 (2013.01); B01D 2257/702 (2013.01); B01D 2259/404 (2013.01); B01D 2259/40086 (2013.01); B01D 2259/4541 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A fuel gas conditioning system, comprising:
a pressure swing adsorption (PSA) system configured to be fluidly coupled to at least a portion of a rich natural gas stream, the PSA system comprising a plurality of adsorbent beds and configured to condition the at least the portion of the rich natural gas stream and produce a high-quality fuel gas and gaseous separated heavier hydrocarbons when so fluidly coupled;
a product end of the plurality of adsorbent beds configured to be fluidly coupled to a fuel gas line, wherein the high-quality fuel gas is discharged from the product end and supplied to the fuel gas line when so fluidly coupled; and
a feed end of the plurality of adsorbent beds configured to be fluidly coupled to the at least the portion of the rich natural gas stream, wherein the fuel gas conditioning system is configured such that the gaseous separated heavier hydrocarbons so produced are recirculated into one of the rich natural gas stream or a raw natural gas stream.