NON-AQUEOUS SOLVENT FOR REMOVING ACIDIC GAS FROM A PROCESS GAS STREAM FOR HIGH PRESSURE APPLICATIONS

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...

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Hauptverfasser: ZHOU, Shaojun, James, LAIL, Marty, MOBLEY, Paul, GOIINDRONE, Thomas, RABINDRAN, Aravind, Villava Rayer, GUPTA, Vijay, TANTHANA, Jak
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung: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.