Patent ID: 7285209
Filing Date: 2007-10-23
Classification: B01D,C10G,Y10S

Abstract:
1. An apparatus for filtration of water from hydrocarbons comprised of: a fresh-feed inlet; water emulsified by a surfactant having a hydrophobic tail portion; a first dead end filter, having a filter medium that is hydrophobic, and wherein said filter medium comprises a surface that attracts said hydrophobic tail portion of said surfactant; a system for the recirculation of a retentate; a permeate chamber; a chamber for water settling; a top chamber; a second cross-flow filter, having a membrane that is hydrophobic, said membrane having a sweeping flow of the retentate thereacross, said second cross-flow filter communicating on its inlet end with said top chamber and on its outlet end with said chamber for water settling, wherein said second cross-flow filter further comprises a center tube for collection of a permeate in communication with said permeate chamber; a non-perforated tube sleeve guide containing said second cross-flow filter; a common housing to contain both said first and second filters; and an outlet for clean hydrocarbon permeate.