US 12,305,136 B2
Method for removing acid compounds from a gaseous effluent using a tertiary amine-based absorbent solution
Julien Grandjean, Rueil-Malmaison (FR); Thierry Huard, Rueil-Malmaison (FR); Aurelie Wender, Rueil-Malmaison (FR); Francois Grosjean, Rueil-Malmaison (FR); Jean Kittel, Rueil-Malmaison (FR); Abdelkader Lettat, Rueil-Malmaison (FR); Marie Dehlinger, Rueil-Malmaison (FR); Aurelie Mouret, Rueil-Malmaison (FR); and Xavier Courtial, Rueil-Malmaison (FR)
Assigned to IFP Energies nouvelles, Rueil-Malmaison (FR)
Appl. No. 17/777,456
Filed by IFP Energies nouvelles, Rueil-Malmaison (FR)
PCT Filed Dec. 1, 2020, PCT No. PCT/EP2020/084178
§ 371(c)(1), (2) Date May 17, 2022,
PCT Pub. No. WO2021/121983, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 1914512 (FR), filed on Dec. 16, 2019.
Prior Publication US 2023/0357658 A1, Nov. 9, 2023
Int. Cl. C10L 3/10 (2006.01); B01D 53/14 (2006.01); B01D 53/52 (2006.01); B01D 53/62 (2006.01); B01D 53/96 (2006.01)
CPC C10L 3/103 (2013.01) [B01D 53/1425 (2013.01); B01D 53/1462 (2013.01); B01D 53/1493 (2013.01); B01D 53/526 (2013.01); B01D 53/62 (2013.01); B01D 53/96 (2013.01); C10L 3/104 (2013.01); B01D 2252/103 (2013.01); B01D 2252/20415 (2013.01); B01D 2252/20431 (2013.01); B01D 2252/20447 (2013.01); B01D 2252/20489 (2013.01); B01D 2252/504 (2013.01); B01D 2252/602 (2013.01); B01D 2256/245 (2013.01); B01D 2257/304 (2013.01); B01D 2257/306 (2013.01); B01D 2257/308 (2013.01); B01D 2257/504 (2013.01); B01D 2258/05 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Process for the removal of the acid compounds contained in a gaseous effluent comprising carrying out a stage of absorption of the acid compounds by bringing the gaseous effluent into contact with an absorbent solution, said absorbent solution comprising:
water;
between 20% and 28% by weight of pentamethyldipropylenetriamine;
between 5% and 35% by weight of N-methyldiethanolamine.