Patent ID: 8729139
Filing Date: 2014-05-20
Classification: B01D,C10G,C10K,Y02C,Y02P

Abstract:
1. A method for recovering hydrocarbon compounds from gaseous by-products generated in a Fischer-Tropsch synthesis reaction, the method comprising: absorbing light hydrocarbon compounds and carbon dioxide gas from the gaseous by-products using an absorption solvent including liquid hydrocarbon compounds and a carbon dioxide gas absorbent to remove the light hydrocarbon compounds and the carbon dioxide gas from the gaseous by-products; separating the liquid hydrocarbon compounds containing absorbed light hydrocarbon compounds from the carbon dioxide gas absorbent containing absorbed carbon dioxide gas; heating the liquid hydrocarbon compounds, which have been separated from the carbon dioxide gas absorbent, to recover the light hydrocarbon compounds from the liquid hydrocarbon compounds; heating the carbon dioxide gas absorbent, which has been separated from the liquid hydrocarbon compounds, to strip the carbon dioxide gas from the carbon dioxide gas absorbent; and re-using the gaseous by-products from which the light hydrocarbon compounds and the carbon dioxide gas have been removed as a feedstock gas for the Fischer-Tropsch synthesis reaction.