US 12,440,797 B2
Carbon capture systems
Paul M. Dunn, W. Kingston, RI (US)
Assigned to Enhanced Energy Group LLC, West Kingston, RI (US)
Filed by Enhanced Energy Group LLC, W. Kingston, RI (US)
Filed on Feb. 19, 2024, as Appl. No. 18/581,008.
Application 18/581,008 is a continuation of application No. 17/464,199, filed on Sep. 1, 2021, granted, now 11,931,685.
Claims priority of provisional application 63/076,521, filed on Sep. 10, 2020.
Prior Publication US 2024/0189759 A1, Jun. 13, 2024
Int. Cl. B01D 53/04 (2006.01)
CPC B01D 53/0462 (2013.01) [B01D 2253/116 (2013.01); B01D 2256/10 (2013.01); B01D 2257/504 (2013.01); B01D 2257/80 (2013.01); B01D 2258/01 (2013.01); B01D 2259/40003 (2013.01); B01D 2259/40007 (2013.01); B01D 2259/403 (2013.01); B01D 2259/4061 (2013.01); B01D 2259/4148 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A carbon capture system, comprising:
an engine system that includes cooled exhaust recirculation and oxygen augmentation, wherein the engine system is configured to operate with a semi-closed cycle;
a first stage compressor that receives a portion of the cooled exhaust that is not recirculated;
a dehydration subsystem that includes two or more dehydration thermal swing adsorption (TSA) beds; and
a two stage pressure swing adsorption (PSA) CO2 capture system that includes:
a three vessel PSA process that provides a first stage outlet flow with CO2 at a first purity;
a second stage compressor that receives the first stage outlet flow; and
a two vessel PSA process, downstream from the three vessel PSA process, that provides a second stage outlet flow with CO2 at a second purity greater than the first purity.