Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2007-02-14
2009-08-18
Griffin, Walter D (Department: 1797)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S679000, C210S633000, C210S634000, C422S211000, C422S212000, C422S218000, C422S222000
Reexamination Certificate
active
07575688
ABSTRACT:
Disclosed are fuel filters and process for removing sulfur-containing compounds from a post refinery fuel stream. In one embodiment, the disclosed process requires passing the post refinery fuel stream through a fuel filter to provide a clean fuel stream having a reduced concentration of sulfur-containing compounds relative to the post-refinery fuel stream, wherein the fuel filter comprises an adsorbent comprising an inorganic oxide having a surface acidity characterized by a pKaof less than or equal to −3.
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Written Opinion of the International Searching Authority dated Sep. 27, 2007 for PCT/US2007/003891.
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Bause Daniel E.
Rohrbach Ronald P.
Unger Peter D.
Zulauf Gary B.
Cantor Colburn LLP.
Griffin Walter D
Honeywell International , Inc.
Nguyen Huy-Tram
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