Patent ID: 7018434
Filing Date: 2006-03-28
Classification: G01N,Y10S

Abstract:
1. A method of removing drag reducer additive from liquid hydrocarbon fuel, said method comprising: providing contaminated liquid hydrocarbon fuel comprising a concentration of drag reducer additive (DRA); contacting said contaminated liquid hydrocarbon fuel with a quantity of one or more graphite effective to substantially reduce said concentration of DRA, said contacting occurring under conditions effective to produce clean liquid hydrocarbon fuel wherein said graphite comprises an adsorption capacity for said DRA of about 0.01 wt. % or more at from about 8 to about 12 ppm DRA concentration and at about 1 g graphite/100 ml fuel, said DRA being selected from the group consisting of sheared DRA, partially sheared DRA, and unsheared DRA.