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Caterpillar Inc.

Exxonmobil Chemical Patents Inc.

Exxonmobil Oil Corporation

Exxonmobil Research and Engineering

Richard F Socha

Clarence D Chang

David S Shihabi

Thomas F Degnan

Ajit Bhaskar Dandekar

Richard L Eckes

S Beau Waldrup

Frank Hershkowitz

Robert K Grasselli

Paul Joseph Berlowitz

David O Marler

Jeffrey William Frederick

Rudolph M Lago

John G Tsikoyiannis

Rajeev Agnihotri

Novica Rados

Michael R Stapleton

James C Vartuli

Stuart Damon Hellring

Scott A Stevenson

Robert P Absil

Emmerson Bowes

Zhiguo Hou

Joe E Penick

Jason M McMullan

Soheil Alizadeh-Khiavi

Daryl Musselman

Bruce Derites

George Walchuk

Kamal Hatami

Jeffrey Grenda

Brooke Cox

John Siller

Jason M Mcmullan

Nai Y Chen

Scott S Han

Costandi A Audeh

Arthur W Chester

Terry Eugene Helton

Charles T Kresge

Jeffrey S Beck

Simon Christopher Weston

Ivy Dawn Johnson

John P McWilliams

David Charles Calabro

Jean Willem Beeckman

Bruce P Pelrine

Hye Kyung Cho Timken

David Joseph Baillargeon

Garry W Kirker

Dominick N Mazzone

Ajit V Sapre

Hye Kyung Timken

Mohan Kalyanaraman

Gary J Green

Thomas R Forbus, Jr

Richard Charles Dougherty

Brent A Aufdembrink

Sandeep Singh Dhingra

Paul Park

Nancy M Page

Kenneth R Graziani

El-Mekki El-Malki

Glenn R Sweeten

Timothy J Fiebig

Gretchen R Hall

Paul W Park

Richard C Dougherty

Hye Kyung Cho Timkin

Embodiments of a compact pressure swing reformer are disclosed. Certain embodiments have a construction comprising multiple rotating reformer beds, high temperature rotary valves at the bed ends, and E-seals to seal the beds to the valves. Several possible designs for introducing reactants into the beds also are disclosed. The multiple reformer beds are configured to provide for pressure equalization and 'steam push'. The compact pressure swing reformer is suitable for use in fuel cell vehicle applications.

Compact pressure swing reformer

Methods and systems for selective catalytic reduction of NOx with an ammonia reductant and a zeolite catalyst loaded with at least two metals selected from the group of tungsten, cobalt, and vanadium. An exhaust stream including NOx and a reductant stream including ammonia are provided to a catalytic reactor having the metal loaded zeolite catalyst at suitable operating temperatures for NOx reduction of at least 90%.

Catalytic reduction of NOx with high activity catalysts with NH3 reductant

Methods and systems for selective catalytic reduction of NOx with an activated-carbon-supported metal catalyst at an operating temperature of between about between about 500&#xb0; C. and about 750&#xb0; C. An exhaust stream including NOx is introduced to a catalytic reactor having the activated-carbon-supported metal catalyst for NOx reduction of at least 90%. A second catalyst reactor can be provided downstream to remove or convert nitrous oxide as desired.

Catalytic reduction of NOx with high activity catalysts

Methods and systems are provided for selective catalytic reduction of NOx with a low molecular low molecular weight hydrocarbon, e.g., propylene, as a reductant using a catalyst system including two catalysts. An exhaust stream containing an amount of NOx from a combustion operation is provided. A portion of the exhaust stream and a reductant stream including a low molecular weight hydrocarbon is introduced to a first catalytic reactor, which comprises a first catalyst including alumina loaded with silver. The NOx-reduced exhaust stream from the first catalyst is then directed to a second catalyst including zirconia loaded with at least one metal.

Catalytic reduction of NOx with high activity catalysts with propylene reductant

Methods and systems are provided for selective catalytic reduction of NOx with a low molecular low molecular weight aldehyde, e.g., acetaldehyde, as a reductant using a catalyst system including two catalysts. An exhaust stream containing an amount of NO from a combustion operation is provided. A portion of the exhaust stream is introduced to a first catalyst to convert the NO to NO. The exhaust stream from the first catalyst with NOand a reductant stream containing a low molecular weight aldehyde, e.g., acetaldehyde, are introduced to the second catalyst to convert the NOto N. The first catalyst can be bulk CoO, Ru or Pt loaded on alumina; the second catalyst can be various zeolites, or zeolites loaded with potassium.

Catalytic reduction of NOx with high activity catalysts with acetaldehyde reductant

A method and apparatus for catalytically processing a gas stream passing therethrough to reduce the presence of NOtherein, wherein the apparatus includes a first catalyst composed of a silver containing alumina that is adapted for catalytically processing the gas stream at a first temperature range, and a second catalyst composed of a copper containing zeolite located downstream from the first catalyst, wherein the second catalyst is adapted for catalytically processing the gas stream at a lower second temperature range relative to the first temperature range.

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A method for producing a hydrogen containing gas for use in an internal combustion engine system is provided. The method includes cyclically operating at least two pressure swing reformer reactors such that one is reforming while another is regenerating, thereby producing a continuous stream of hydrogen containing gas. During engine operation exhaust gas is fed to the pressure swing reformer reactor that is undergoing regeneration, thereby supplying at least part of the heat for regeneration. Also, the hydrogen gas produced is used in at least one of (i) the engine; (ii) an engine exhaust treatment device; and (iii) a fuel cell.

Hydrogen production and use in an internal combustion engine system

The present invention relates to formulated lubricant oils derived from a highly paraffinic basestock. The lubricating oils of the present invention achieve the extremely stringent viscosity requirements of SAE '0W' crossgraded engine oils and demonstrate an excellent combination of low-temperature performance and biodegradability not achievable by other formulations derived from other classes of basestocks.

Formulated lubricant oils containing high-performance base oils derived from highly paraffinic hydrocarbons

This invention relates to a process for isomerizing paraffins comprising the step of contacting a feed containing paraffins with a catalyst comprising a synthetic porous crystalline material, designated MCM-68, which exhibits a distinctive X-ray diffraction pattern and has a unique crystal structure which contains at least one channel system, in which each channel is defined by a 12-membered ring of tetrahedrally coordinated atoms, and at least two further, independent channel systems, in each of which each channel is defined by a 10-membered ring of tetrahedrally coordinated atoms, wherein the number of unique 10-membered ring channels is twice the number of 12-membered ring channels.

Isomerization of paraffins

The present invention is a process for producing a high viscosity index and low pour point lubricating oil base stock which comprises catalytically converting a hydrotreated hydrocarbon lube oil feedstock containing waxy paraffins in the presence of hydrogen and in the presence of a low acidity ZSM-5 catalyst having a highly dispersed noble metal component. The ZSM-5 catalyst is subjected to controlled acidity reduction to an alpha value below 15 prior to incorporation of the noble metal component.

Production of high viscosity lubricating oil stock with improved ZSM-5 catalyst

A process is described wherein the HCN in FCC hydrocarbon gas streams is converted to NH.sub.3 over a catalyst. This conversion has the desirable result of decreasing the amount of CN.sup.- in the water leaving the sour-water stripper, and ultimately in the refinery water effluent.

Process for the removal of hydrogen cyanide from FCC hydrocarbon product

A process for converting noxious nitrogen oxides present in oxygen-containing gaseous effluents to N.sub.2 and H.sub.2 O comprising reacting the gaseous effluent with an effective amount of ammonia in the presence of a catalyst having a Constraint Index of up to about 12, said catalyst having a Constraint Index of up to about 12, said catalyst being composited with a binder containing at least one selected from the group consisting of titania, zirconia, and silica.

NO.sub.x abatement process

A process for converting noxious nitrogen oxides present in gaseous effluent to N.sub.2 comprising reacting the gaseous effluent with an effective amount of reducing agent, e.g., ammonia, in the presence of a catalyst structure comprising a film of interconnected zeolite crystals bonded to a substrate, said catalyst structure being characterized by a value r representing the mg of zeolite/cm.sup.2 of substrate surface and a value e representing the coating efficiency as mg of bonded zeolite/mg of YO.sub.2 initially in the synthesis mixture, wherein r is at least 0.5 and e is at least 0.05.

A process for separating at least one component from a mixture of components which comprises contacting the mixture with a sorbent structure comprising a film of interconnected zeolite crystals bonded to a substrate, said sorbent structure being characterized by a value r representing the mg of zeolite/cm.sup.2 of substrate surface and a value e representing the coating efficiency as mg of bonded zeolite/mg of YO.sub.2 initially in the synthesis mixture, wherein r is at least 0.5 and e is at least 0.05.

Process for sorption separation

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Newtown, PA, United States of America

Richard F Socha