Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Win-Sow Winston Ho

Guido Sartori

Warren A Thaler

David Craig Dalrymple

David William Savage

Evelyn N Drake

Bruce Henry Ballinger

Peter Calcavecchio

Robert E Noone

The present invention provides a CO -selective membrane process that is useful for the purification and/or water gas shift reaction of a reformed gas, generated from on-board reforming of a fuel, e.g., hydrocarbon, gasoline, diesel, methanol or natural gas, to hydrogen for fuel cell vehicles. Another embodiment of the present invention is directed toward a composition comprising a hydrophylic polymer and at least one ammonium halide salt, the ammonium halide salt being present in an amount ranging from about 10 to 80 wt % based on the total weight of the composition. The composition is suitable in formation of a membrane useful for separating CO from a CO -containing gas, particularly from an on-board reformed gas for the CO -selective membrane process.

CO2-Selective membrane process and system for reforming a fuel to hydrogen for a fuel cell

The invention is a system and a method for bioremediating hydrocarbon-contaminated groundwater. The method comprises contacting the hydrocarbon-contaminated groundwater with a source of microbial nutrients and then aerating the nutriated water with air or oxygen, the aeration being conducted under substantially bubble-free conditions.

Biowall for groundwater remediation

A copolymer composition comprising the hard segment of a polyimide, the soft segment of an oligomeric aliphatic polyester, and a diepoxide for crosslinking and esterification. The diepoxide polyimide copolymer membranes have exhibited high selectivity and flux for separation of an aromatic/saturate mixture. These membranes have shown much better stability in soaking with an aromatic/saturate feed than the copolymer membranes without a diepoxide.

Separating aromatics from non-aromatics by polyimide-polyester membrane

A new copolymer composition comprising the hard segment of a polyimide, the soft segment of an oligomeric aliphatic polyester, and a diepoxide for crosslinking and esterification. The new diepoxide polyimide copolymer membranes have exhibited high selectivity and flux for separation of an aromatic/saturate mixture. These new membranes have shown much better stability in soaking with an aromatic/saturate feed than the copolymer membranes without a diepoxide.

Diepoxide crosslinked/esterified polyimide-aliphatic polyester copolymers

The present invention includes the use of crosslinked fluorinated polyolefin membranes membranes for the separation of aromatics from saturates, wherein aromatics can contain sulfur and nitrogen.

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Annandale, NJ, United States of America

Win-Sow Winston Ho