Patent ID: 9457340
Filing Date: 2016-10-04
CPC Classification: B01D,B01J,Y02C

Claim Text:
1. A method of applying a sorbent coating on a substrate, the method comprising: (i) preparing the substrate by pre-treating the substrate with a slurry, wherein the slurry comprises: (ii) subsequently treating the substrate with a sorbent; wherein the substrate is (a) a monolithic or honeycomb structure made of ceramic, metal, or plastic; (b) a polyurethane foam, a polypropylene foam, a polyester foam, a metal foam, or a ceramic foam; or (c) woven or non-woven plastic or cellulosic fibers, wherein the support comprises alumina, silica, silica-alumina, titania, zirconia, carbon, zeolite, metal-organic framework (MOF), or combinations thereof, the support having a surface area of 150 m wherein the sorbent adsorbs carbon dioxide and the sorbent is polyethylenimine (PEI); wherein the PEI is present at a concentration of 25 wt % to 45 wt % calculated as weight of PEI divided by weight of PEI and support; and wherein the surface area and pore volume of the support together provide the sorbent with a carbon dioxide adsorption capacity that is greater than 1.5 mmol CO