Patent ID: 6841077
Filing Date: 2005-01-11
Classification: B01D,B01J,Y10S

Abstract:
1. A method of filtering hydrocarbons from a hydrocarbon containing liquid comprising the steps of: (a) providing a filtration media bed comprising (b) contacting the hydrocarbon containing liquid to said filtration media bed; and (c) removing hydrocarbons in the hydrocarbon containing liquid upon contacting the hydrocarbon containing liquid to said filtration media bed to allow hydrocarbon-free liquid flow through said filtration media bed, while said excessive hydrocarbon exposure causes said polymeric absorbent to dissolve, tackify and form said plug at least at a top portion of said filtration media bed sealing off and containing the hydrocarbon containing liquid, said plug capable of being removed to reveal fresh, unplugged polymeric absorbent of said filtration media bed.