Patent ID: 6736961
Filing Date: 2004-05-18
Classification: B01D,C10G

Abstract:
A process for removing sulfur from a hydrocarbon comprising:conveying a feed stream past a first side of a selective solid membrane, wherein said feed stream comprises a feed liquid hydrocarbon and a feed sulfur species, and selective solid membrane is constructed from one or more compounds providing greater permeation selectivity for said feed sulfur species than said feed liquid hydrocarbon, and said selective solid membrane contains a facilitated transport liquid selected from the group consisting of amines, hydroxyamines, alcohols, and mixtures thereof; conveying a sweep stream past a second side of said selective solid membrane; and transporting said feed sulfur species from said feed stream through said selective solid membrane in a permeate into said sweep stream, thereby converting said sweep stream to a sulfur-enriched stream and said feed stream to a substantially sulfur-free reject stream containing a primary hydrocarbon product.