US 12,447,434 B2
Porous solid amine adsorbents and applications
Yong Ding, Waban, MA (US)
Assigned to Decarbontek LLC, Woburn, MA (US)
Filed by Decarbontek LLC, Woburn, MA (US)
Filed on Jul. 7, 2022, as Appl. No. 17/859,139.
Claims priority of provisional application 63/220,734, filed on Jul. 12, 2021.
Claims priority of provisional application 63/220,744, filed on Jul. 12, 2021.
Claims priority of provisional application 63/220,739, filed on Jul. 12, 2021.
Claims priority of provisional application 63/220,745, filed on Jul. 12, 2021.
Prior Publication US 2023/0011904 A1, Jan. 12, 2023
Int. Cl. B01D 53/04 (2006.01); B01D 53/02 (2006.01); B01D 53/047 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01)
CPC B01D 53/0415 (2013.01) [B01D 53/02 (2013.01); B01D 53/0438 (2013.01); B01D 53/0462 (2013.01); B01D 53/047 (2013.01); B01J 20/267 (2013.01); B01J 20/28054 (2013.01); B01J 20/3071 (2013.01); B01J 20/3078 (2013.01); B01D 2253/102 (2013.01); B01D 2253/108 (2013.01); B01D 2253/202 (2013.01); B01D 2253/204 (2013.01); B01D 2253/311 (2013.01); B01D 2257/302 (2013.01); B01D 2257/304 (2013.01); B01D 2257/504 (2013.01); B01D 2259/40088 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A process for removing an acid gas from a fluid stream containing the acid gas, the process comprising:
contacting the fluid stream with a porous solid amine adsorbent, whereby at least a portion of the acid gas is adsorbed by the porous solid amine adsorbent to produce a purified fluid stream,
wherein,
the porous solid amine adsorbent is prepared by a method comprising:
bringing into contact a first solution, the first solution containing a water insoluble polymer and a water-soluble amine polymer, with an aqueous solution containing a multifunctional chemical agent, to form a solid material;
drying the solid material to produce the porous solid amine adsorbent; and
optionally heating the porous solid amine adsorbent to produce a heat-treated porous solid amine adsorbent.