Hydrocarbon gas, such as methane, is partially oxidized by flowing the gas through a moving catalyst bed supported on a rotating drum disposed in a partitioned duct. Catalyst is regenerated by exposure to an oxygen containing gas flowing through a passage formed in the duct. A gas seal is formed between the duct partition and a surface of the catalyst support drum on the downstream side of the drum to minimize the leakage flow of hydrocarbon gas into the regenerator gas. The pressures of the hydrocarbon gas and regenerator gas are regulated upstream of the catalyst bed to minimize leakage flow of one gas into the flow space of the other gas through a space formed between the duct partition and the drum upstream of the catalyst bed.
A method and apparatus for converting gaseous reactants to liquid products catalyzed by stable catalysts. The method comprises providing a rotatable catalyst bed comprising Gas to Liquid (GTL) catalyst, feeding a gaseous stream of reactants into the catalyst bed and providing a pressure drop across the catalyst bed such that the gaseous stream flows through the catalyst bed so as to produce a gas output and a liquid product, and rotating the catalyst bed so as to enhance passage of said liquid product from the catalyst bed. The preferred apparatus comprises a rotatable fixed bed catalyst system including a catalyst active for converting syngas to hydrocarbons, a feed gas line for providing syngas to the catalyst bed, a liquid output line for receiving liquid output from the catalyst bed, and a gas output line for receiving gas output from the catalyst bed.
Hydrogen is generated in a reactor, of a hydrogen generating apparatus, in which a catalyst is installed and the catalyst and a borohydride fuel are reacted. The hydrogen generating apparatus comprises a rotating disk to which the catalyst is fixed, a motor for rotating the rotating disk, and a fuel injector for flowing out the borohydride fuel against the catalyst. A compound generated from the borohydride is prevented from adhering to the catalyst.
5356597 - In-duct flue gas conditioning system - Owned by Wilhelm Environmental Technologies, Inc. (Indianapolis, IN) [*] Notice:The portion of the term of this patent subsequent to August 31, 2010 has been disclaimed.
The present invention provides a flue gas conditioning system and method for generating conditioning agent used in the removal of entrained particles in a flue gas flow with an electrostatic precipitator. The invention involves the use of a catalytic converter movable between an operative position where the flue gas flows through the catalyst and converts SO.sub.2 contained in the flue gas to SO.sub.3 when conditioning agent is needed and an inoperative position where the flue gas does not flow through the catalyst when conditioning agent is no longer needed. The movable catalytic converter and related assembly may take variable configurations to accommodate various flue gas ductworks and space limitations and may carry one or more SO.sub.2 /SO.sub.3 converters providing a plurality of open and generally parallel flow paths of the flue gas that are formed by a catalyst effective over a wide range of temperatures for the controlled conversion of preferably a low percentage of SO.sub.2 in the flue gas to SO.sub.3.
