US 12,492,156 B2
Hydrocarbon recovery unit with recycle loop for adsorbent bed regeneration
William B. Dolan, Iselin, NJ (US); and Justin Pan, Iselin, NJ (US)
Assigned to BASF Corporation, Florham Park, NJ (US)
Appl. No. 18/265,873
Filed by BASF CORPORATION, Florham Park, NJ (US)
PCT Filed Dec. 12, 2021, PCT No. PCT/US2021/062991
§ 371(c)(1), (2) Date Jun. 7, 2023,
PCT Pub. No. WO2022/132602, PCT Pub. Date Jun. 23, 2022.
Claims priority of provisional application 63/127,876, filed on Dec. 18, 2020.
Prior Publication US 2024/0059634 A1, Feb. 22, 2024
Int. Cl. C07C 7/13 (2006.01); B01D 53/04 (2006.01); B01D 53/14 (2006.01); B01J 20/18 (2006.01); C07C 7/12 (2006.01); C10L 3/10 (2006.01)
CPC C07C 7/13 (2013.01) [B01D 53/0423 (2013.01); B01D 53/1487 (2013.01); B01J 20/186 (2013.01); C10L 3/103 (2013.01); B01D 2252/2026 (2013.01); B01D 2253/108 (2013.01); B01D 2257/306 (2013.01); B01D 2257/702 (2013.01); B01D 2259/40086 (2013.01); C10L 2290/12 (2013.01); C10L 2290/542 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A process comprising:
introducing a gas feed stream comprising C5+ hydrocarbons or organic sulfur species into a first adsorbent bed to produce a treated gas stream;
regenerating a second adsorbent bed with a portion of the treated gas stream to produce a regeneration gas stream;
introducing an absorbent into the regeneration gas stream to remove a portion of the C5+ hydrocarbons or organic sulfur species;
subsequently removing the portion of the C5+ hydrocarbons or organic sulfur species from the regeneration gas stream to form a separated regeneration gas stream; and
subsequently mixing the separated regeneration gas stream with the gas feed stream.