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| Number | Title | Issue Date |
| 8178460 | Exhaust treatment system and method of operation An exhaust treatment method is provided. Method of increasing activation of NOx reduction catalyst using two or more reductant is discussed. The NOx catalyst is disposed to receive both the exhaust stream and reductant stream. The sensor is disposed to sense a syste... | 05/15/2012 |
| 8158545 | Methods, systems, and devices for deep desulfurization of fuel gases A highly effective and regenerable method, system and device that enables the desulfurization of warm fuel gases by passing these warm gasses over metal-based sorbents arranged in a mesoporous substrate. This technology will protect Fischer-Tropsch synthesis catalys... | 04/17/2012 |
| 7981825 | Fuel cell catalyst regeneration Systems and methods that facilitate operating proton exchange membrane (PEM) fuel cells are provided. The methods can involve contacting a reducing agent comprising a mixture of hydrogen and nitrogen, or a reducing plasma with a cathode catalyst of a proton exchange... | 07/19/2011 |
| 7951739 | Bathtub-type spent catalyst distributor for effective counter-current regeneration in fluid catalytic cracking units An improved spent catalyst regenerator which contains sub-troughs branching off from the main trough, distribution troughs which extend outward from the sides of the main trough and the sub-troughs, and downflow tubes extending downward from the bottom of the main t... | 05/31/2011 |
| 7745364 | Process for regenerating catalyst for a hydrocarbon conversion zone In one exemplary embodiment, a process for regenerating a hydrocarbon conversion catalyst for a hydrocarbon conversion zone can generally include passing the hydrocarbon conversion catalyst through, sequentially, a catalyst-disengaging zone having a first atmosphere... | 06/29/2010 |
| 7745365 | Bathtub-type spent catalyst distributor for effective counter-current regeneration in fluid catalytic cracking units An improved spent catalyst regenerator which contains sub-troughs branching off from the main trough, distribution troughs which extend outward from the sides of the main trough and the sub-troughs, and downflow tubes extending downward from the bottom of the main t... | 06/29/2010 |
| 7732363 | Regeneration of acidic catalysts A process for regenerating a used acidic catalyst which has been deactivated by conjunct polymers by removing the conjunct polymers so as to increase the activity of the catalyst is disclosed. Methods for removing the conjunct polymers include hydrogenation, additio... | 06/08/2010 |
| 7718561 | Multi-layer catalyst for producing phthalic anhydride The present invention relates to a catalyst for preparing phthalic anhydride by gas phase oxidation of o-xylene and/or naphthalene, comprising at least three catalyst zones which have different compositions and, from the gas inlet side toward the gas outlet side, ar... | 05/18/2010 |
| 7423191 | Method and system for catalytically converting oxygenates and regenerating and stripping catalyst A method of converting oxygenate-containing feedstock to light olefins comprises charging a reactor with catalyst, feeding the feedstock into the reactor, contacting the feedstock with the catalyst and converting the feedstock to olefins while depositing byproducts ... | 09/09/2008 |
| 7419928 | Fischer-Tropsch catalyst production A process for enhancing the activity of a catalyst metal particulate for hydrogenation reactions comprising calcining the particulate in an oxidant-containing atmosphere to partially oxidize it thereby forming a porous layer of oxides thereon, treating with an solut... | 09/02/2008 |
| 7384882 | Process for regenerating titanium-containing catalysts The present invention discloses a process for regenerating titanium-containing catalysts, characterized in that a deactivated catalyst is treated in an acidic solution having a pH value of ≦3, and then dried and calcined. The process is simple in procedure and can... | 06/10/2008 |
| 7361619 | Fischer-Tropsch catalyst production Dispersed Active Metal catalyst for hydrogenation reactions is produced by treating a substantially catalytically inactive metal particulate with a solution capable of oxidizing the metal particulate and comprising of at least one compound of a hydrogenation catalys... | 04/22/2008 |
| 7355086 | Method for stabilizing catalyst activity during MTO unit operation A method for maintaining the activity of silicoaluminophosphate (SAPO) molecular sieve catalyst particles during oxygenate to olefin conversion reactions. After regeneration of SAPO catalyst particles, the regenerated particles are mixed with particles having coke o... | 04/08/2008 |
| 7335618 | Method for manufacturing hydrorefining catalyst, and metal recovery method A heavy oil is hydrorefined using a hydrorefining catalyst. A spent hydrorefining catalyst whose activity has decreased is heat treated (S1) and pulverized to obtained a regenerated powder (S2). This regenerated powder is fractionated according to its ... | 02/26/2008 |
| 7326394 | Catalysts, methods of making catalysts, and methods of combustion Catalysts are described in which an active catalyst is disposed on a low surface area, oxide support. Methods of forming catalysts are described in which a Cr-containing metal is oxidized to form a chromium oxide layer and an active catalyst is applied directly on t... | 02/05/2008 |
| 7319175 | Catalyst synthesis of halogenated compounds with catalyst regeneration with elemental halogen Catalysts such as antimony halides, which are useful in fluorination reactions involving hydrogen fluoride, may be reduced during the reaction and require regeneration. Regenerative oxidation is usually carried out by introducing elemental halogen, preferably fluori... | 01/15/2008 |
| 7316988 | Gas turbine single plant modifying method, a catalyst re-using method and a re-produced catalyst A high temperature denitration catalyst of a gas turbine single plant contains TiO2, at least one of WO3 and MoO3 and V2O5 of 0.5 wt % or less, preferably 0.2 wt % or less, or none of V2O5,... | 01/08/2008 |
| 7297252 | Catalyst activation in the presence of olefinic hydrocarbon for selective naphtha hydrodesulfurization An improved catalyst activation process for olefinic naphtha hydrodesulfurization. This process maintains the sulfur removal activity of the catalyst while reducing the olefin saturation activity. ... | 11/20/2007 |
| 7276149 | Method of shutting down a reaction system The invention is directed to methods of shutting down reaction systems. The reaction systems are those that use catalysts that comprise molecular sieves, particularly metalloaluminophosphate molecular sieves, especially metalloaluminophosphate molecular sieves which... | 10/02/2007 |
| 7267811 | Fuel reformer catalyst and absorbent materials Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials, and methods for using such materials for the conversion of carbon-based fuels to a H2-rich product gas. The materials can be... | 09/11/2007 |
| 7264788 | Fuel reformer catalyst and absorbent materials Materials that are useful for absorption enhanced reforming (AER) of a fuel, including absorbent materials and catalyst materials and methods for using the materials. The materials can be fabricated by spray processing. The use of the materials in AER can produce a ... | 09/04/2007 |
| 7235220 | Exhaust gas treatment method, exhaust gas treatment system, and catalytic oxidation apparatus The present invention provides an exhaust gas treatment method including oxidation treatment for converting metallic mercury contained in combustion exhaust gas into mercury chloride; and mercury removal treatment for removing mercury from the combustion exhaust gas... | 06/26/2007 |
| 7148176 | Production of novel phosphane ligands and use in catalytical reactions The present invention is directed to phosphine ligands and the use of such ligands in catalytic complexes with transition metals. The catalysts may be used in a variety of reactions and are especially useful for refining halogenoaromatics. ... | 12/12/2006 |
| 7122491 | Method of increasing the lifetime of a hydro-oxidation catalyst A method of increasing the lifetime of a hydro-oxidation catalyst comprising, preferably, gold, silver, or mixtures thereof, and optionally one or more promoters, on a titanium-containing support, such as a titanosilicate or titanium dispersed on silica. The method ... | 10/17/2006 |
| 7101419 | Air filter assembly for low temperature catalytic processes An air filter assembly for removing particulate contaminants, chemical contaminants, or both, from an incoming dirty air stream. The resulting filtered or clean air is supplied to catalytic equipment, such as a fuel cell. The filter assembly can include a physical f... | 09/05/2006 |
| 7074975 | Catalytic synthesis of halogenated compounds with catalyst regeneration with elemental halogen Catalysts such as antimony halides, which are useful in fluorination reactions involving hydrogen fluoride, may be reduced during the reaction and require regeneration. Regenerative oxidation is usually carried out by introducing elemental halogen, preferably fluori... | 07/11/2006 |
| 7045238 | SORFC power and oxygen generation method and system A solid oxide regenerative fuel cell system is used to supply power in a fuel cell mode and to generate metabolic oxygen and a hydrocarbon fuel reserve in an electrolysis mode. The system may also be used as a secondary power source or for energy peak shaving applic... | 05/16/2006 |
| 7033971 | Method for using stabilizing catalyst activity during MTO unit operation A method for maintaining the activity of silicoaluminophosphate (SAPO) molecular sieve catalyst particles during oxygenate to olefin conversion reactions. After regeneration of SAPO catalyst particles, the regenerated particles are mixed with particles having coke o... | 04/25/2006 |
| 6962947 | Pressure swing catalyst regeneration procedure for Fischer-Tropsh catalyst A process is disclosed for regenerating a catalyst used in a process for synthesizing hydrocarbons. The synthesis process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting ... | 11/08/2005 |
| 6949488 | Fischer-Tropsch catalyst regeneration Methods and apparatus for providing the heat required to maintain the desired temperature for catalyst regeneration. The catalyst is heated by contacting a reactant gas mixture with the catalyst in order to initiate an exothermic reaction and, once the desired tempe... | 09/27/2005 |
| 6939521 | Fluoropolymer reactor with heat exchange jacket A reactor for fluorinating an organic compound comprising (a) an outer vessel; (b) a reactor vessel being disposed within said outer vessel to define an annular space, said reactor vessel at least partially comprising a fluoropolymer, said annular space being adapte... | 09/06/2005 |
| 6929701 | Process for decoating a washcoat catalyst substrate The invention relates to a process for decoating a used washcoat carrier substrate to produce a clean, inert carrier or substrate. In a preferred embodiment, a process according to the invention includes treating a washcoat catalyst substrate in an aqueous solution ... | 08/16/2005 |
| 6924407 | Pressure-tuned solid catalyzed heterogeneous chemical reactions Improved methods for conducting solid acid-catalyzed, near- or supercritical heterogeneous chemical reactions (e.g., alkylation reactions) are provided which give enhanced product yields and permit longer processing runs. The preferred reactions of the invention are... | 08/02/2005 |
| 6916965 | Treatment of acid catalysts The invention is directed to a method of stabilizing metalloaluminophosphate molecular sieves and catalysts derived therefrom. In particular, the invention is directed to a method of treating such molecular sieves with one or more nitrogen containing compounds havin... | 07/12/2005 |
| 6869978 | Pressure swing catalyst regeneration procedure for Fischer-Tropsch catalyst A process is disclosed for regenerating a catalyst used in a process for synthesizing hydrocarbons. The synthesis process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting ... | 03/22/2005 |
| 6858761 | Process for preserving resin catalyst for addition reaction of alkylene oxide and utilization of this process The present invention provides a process and its utilization in a process comprising the step of carrying out an addition reaction of an alkylene oxide to an addition-receiving substance in the presence of a resin catalyst, thereby producing the addition reaction pr... | 02/22/2005 |
| 6827908 | Standpipe inlet for enhancing particulate solids circulation for petrochemical and other processes In a fluid catalytic cracking (FCC) unit, a regenerator, a stripper or a withdrawal well connecting to either of the vessels, includes a standpipe for circulating catalyst from one vessel to another, the standpipe having an inlet design which reduces gas entrainment... | 12/07/2004 |
| 6811578 | Fuel reforming apparatus and method of controlling same In a fuel reforming apparatus having a reformer for reforming a raw fuel containing a hydrocarbon-containing compound so as to produce a hydrogen-rich fuel gas for use in a fuel cell, a carbon removal process for removing carbon deposited on a reforming catalyst con... | 11/02/2004 |
| 6797239 | Spent catalyst distributor The present invention is related to methods and apparatus for improving distributions of both spent catalyst and transport gas into a regenerator of a fluid catalytic cracking unit. Spent catalyst and transport gases move upwardly through a spent catalyst riser and ... | 09/28/2004 |
| 6770585 | Momordica cochinchinensis (Spreng.) β-carotene and method The present invention provides a process to extract oil from Momordica cochinchinensis aril to yield an edible oil rich in β-carotene. The process can be carried out without the use of any harmful organic solvents, and provides products containing other caro... | 08/03/2004 |
