Patent ID: 9295939
Filing Date: 2016-03-29
CPC Classification: B01D,Y02C

Claim Text:
1. A method for separating carbon dioxide from a gas stream containing moisture and impurities, said method comprising: substantially removing said moisture and said impurities from said gas stream using one of a first temperature swing adsorption, a first pressure swing adsorption, a first vacuum swing adsorption, membrane separation, a first absorption, and any combination thereof, to produce a substantially moisture and impurities free gas stream; capturing said carbon dioxide from said substantially moisture and impurities free gas stream to produce a substantially dry carbon dioxide depleted stream and a substantially pure carbon dioxide product stream by one of a second temperature swing adsorption, a second pressure swing adsorption, a second vacuum swing adsorption, a second absorption with a non-aqueous solvent and with a chemical reaction, and said second absorption with said non-aqueous solvent and without a chemical reaction; and regenerating one or more of adsorbents and absorbents used during said removal of said moisture and said impurities using said substantially dry carbon dioxide depleted stream.