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Method of oil spill recovery using hydrophobic sol-gels and aerogels

United States Patent Application

20040173536
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A device that absorbs and separates oil from oil-water mixtures. The device is formed by combining an absorbent material with a support. The absorbent material is a hydrophobic sol-gel material processed to be an aerogel, with the support being a material of any type that can give the absorbent a place to reside. The absorbent or aerogel material may be coated onto or otherwise secured to the support material. When an oil-water mixture contacts the aerogel material, preferably in granulated or powdered form, the aerogel material will preferentially absorb and retain the oil phase, rejecting the water phase of the mixture. The end result is two separated streams, an oil only stream, and a water only stream.
Coronado, Paul R. (Livermore, CA), Hrubesh, Lawrence W. (Pleasanton, CA), Reynolds, John G. (San Ramon, CA)
The Regents of the University of California
10/ 794,848
March 4, 2004
[0002] The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.