General Electric Company

Gregory L Warner

Paul Russell Wilson

Radislav Alexandrovich Potyrailo

Daniel Joseph Brunelle

Grigorii Lev Soloveichik

Thomas Link Guggenheim

John Patrick Lemmon

Dan Hancu

James Claude Carnahan

Jonathan Lloyd Male

Stanlee Teresa Buddle

Kenneth Walter Browall

Teresa Grocela Rocha

Stephane Renou

Eric George Budesheim

Alison Liana Palmatier

Terry K Leib

Sharon M Fukuyama

Jean E Bradt

Jennifer Kathleen Redline

A catalyst system for the reduction of NOcomprises a catalyst comprising a metal oxide catalyst support, a catalytic metal oxide comprising at least one of gallium oxide or silver oxide, and at least one promoting metal selected from the group consisting of silver, cobalt, molybdenum, tungsten, indium, bismuth and mixtures thereof. The catalyst system further comprises a gas stream comprising an organic reductant, and a compound comprising sulfur. A method for reducing NOutilizing the said catalyst system is also provided.

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A system and method for operating a fuel cell, including reacting a fuel with an oxidant within the fuel cell to produce electricity and reaction products comprising steam. The fuel is fed through the fuel cell, wherein a concentration of the steam increases in the first direction through the fuel cell. The direction of fuel-flow through the fuel cell is altered or reversed upon satisfying a condition, thereby altering the concentration gradient of steam in the fuel cell and providing for removal of carbon deposition with the fuel cell. Such reversal of fuel flow may also provide an exhaust from the fuel cell that can regenerate an external or adjacent hydrocarbon reformer.

System and method for fuel cell operation with in-situ reformer regeneration

In an exemplary embodiment, the method includes the steps of providing an array of reaction vessels and providing a plurality of homogenous reaction mixtures within the reaction vessels. Each mixture comprises monomers at least partially embodied in a liquid and is provided in an amount sufficient to form a film having a thickness sufficient to allow the reaction rate of the polymerization reaction to be essentially independent of mass transport. Polymerization then takes place in the presence of a catalyst at reaction conditions effective in substantially maintaining the homogeneity of the reaction mixture. In this manner, polymerization can take place quickly and efficiently without stirring the reactants. The method is highly useful for testing reactants, catalysts, and associated reaction parameters.

Method for parallel melt-polymerization

Tetranitromethane and other polynitrated methanes can be effectively removed from otherwise substantially organic-free nitric acid streams through the addition of substantially organic-free concentrated sulfuric acid and by, optionally, performing secondary operations such as sparging the mixed acid stream with a gas such as nitric oxide or with an oil.

Method for removing tetranitromethane from nitric acid

A method for making macrocyclic polyesters comprises the steps of supplying heat and contacting bis-hydroxyalkyl-terminated diesters or oligomers thereof with high boiling point solvents and esterification catalysts.

Process for preparing macrocyclic polyesters

Process for isolating macrocyclic polyester oligomers from impurities comprising the step of subjecting solutions of macrocyclic polyester oligomers to protonated molecular sieves.

Process for isolating macrocyclic polyester oligomers

A method is provided for ortho-alkylating phenol by passing a mixture of phenol and methanol through a heated magnesium oxide catalyst. The magnesium oxide catalyst is made by calcining magnesium carbonate and thereafter further heating the calcined product in the presence of steam.

Method of ortho-alkylating phenol

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Schenectady, NY, United States of America

Gregory L Warner