公开(公告)号：US20230001348A1

公开(公告)日：2023-01-05

申请号：US17782296

申请日：2020-12-09

Applicant: Research Triangle Institute

Inventor： Jak TANTHANA ,  Shaojun James ZHOU ,  Paul MOBLEY ,  Vijay GUPTA ,  Marty LAIL ,  Aravind Villava Rayer RABINDRAN ,  Thomas GOHNDRONE

IPC: B01D53/14 ,  C10L3/10

Abstract: A non-aqueous solvent system configured to remove acidic gas from a gas stream comprises a solution formed of a chemical absorption component and a physical absorption component. The chemical absorption component includes a nitrogenous base, wherein the nitrogenous base has a structure such that it reacts with a portion of the acidic gas. The physical absorption component includes an organic diluent that is non-reactive with the acidic gas and that has a structure such that it absorbs a portion of the acidic gas at a pressure above atmospheric pressure. The solvent system has a solubility with water of less than about 10 g of solvent per 100 mL of water.