Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8017539 | Once through regeneration for an olefin cracking reactor A regeneration process for olefin cracking reactor is presented. The process utilizes the nitrogen waste stream from an air separation plant and the partially combusted effluent stream from the olefin cracking reactor is used to heat the nitrogen waste stream. The c... | 09/13/2011 |
| 7902100 | Treatment of air to a catalyst regenerator to maintain catalyst activity The invention relates to a conversion process for making olefin(s) using a molecular sieve catalyst composition. More specifically, the invention is directed to a process for converting a feedstock comprising an oxygenate in the presence of a molecular sieve catalys... | 03/08/2011 |
| 7781362 | Method for protecting catalyst against contaminant ingress Degradation of catalyst activity for silicoaluminophosphate catalysts is minimized for oxygenate-to-olefin reaction systems that are exposed to airborne salt concentrations above a threshold value. When airborne salt concentrations above the threshold value are dete... | 08/24/2010 |
| 7612007 | Process for regenerating catalyst A process for regenerating a catalyst consisting of a mixed oxide having molybdenum, bismuth and iron used for preparing an unsaturated aldehyde and/or an unsaturated carboxylic acid by catalytically oxidizing propylene, isobutylene and/or tert.-butanol with molecul... | 11/03/2009 |
| 7598197 | Catalyst cooling processes utilizing steam superheating This invention provides processes, systems and devices for cooling catalyst, preferably regenerated catalyst, by superheating steam and boiling water. The inventive process advantageously provides ideal cooling conditions while ensuring minimal hydrothermal deactiva... | 10/06/2009 |
| 7538059 | Regeneration of mixed metal oxide catalysts A mixed metal oxide, which may be an orthorhombic phase material, is regenerated, selectively enriched or selectively poisoned as a catalyst to reduce catalyst aging for the production of unsaturated carboxylic acids, or unsaturated nitrites, from alkanes, or mixtur... | 05/26/2009 |
| 7524786 | Regeneration of synthesis gas catalysts The present invention relates to a process for the preparation of synthesis gas (i.e., a mixture of carbon monoxide and hydrogen), typically labeled syngas. More particularly, the present invention relates to a regeneration method for a syngas catalyst. Still more p... | 04/28/2009 |
| 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 |
| 7419929 | Critical phase alkylation process A process for the production of ethylbenzene by the ethylation of benzene in the critical phase over a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. An aromatic feedstock having a benzene content of at least 90 wt. % is suppli... | 09/02/2008 |
| 7405174 | Process for regeneration of a catalyst that contains an EUO-structural-type zeolite A process for regeneration of a catalyst that comprises at least one EUO-structural-type zeolite in acid form and at least one hydro-dehydrogenating metal, used in a process for isomerization of a hydrocarbon feedstock that comprises aromatic compounds with eight ca... | 07/29/2008 |
| 7375143 | Catalyst recover from a slurry Embodiments of the invention relate to processes and apparatus for the washing and recovery of metal-containing catalyst solids in a form suitable for reclamation. More specifically, a catalyst recovery process comprises removing an organic residue with a washing me... | 05/20/2008 |
| 7358211 | Catalyst for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal A process for preparing a catalyst, comprising sequentially: (a) saturating a TiO2 support with aqueous ruthenium solution; (b) treating the ruthenium saturated TiO2 support with an aqueous base solution; and (c) curing the ruthenium saturated ... | 04/15/2008 |
| 7351677 | Process for regenerating a nitrogen oxides storage catalyst The present invention provides a process and a device for regeneration of a nitrogen oxide storage catalyst in the exhaust system of a diesel engine. The process comprises a first and a second regeneration strategy. The first regeneration strategy is applied when th... | 04/01/2008 |
| 7350359 | Method for utilizing gas reserves with low methane concentrations and high inert gas concentrations for fueling gas turbines The invention is directed to a method of fueling gas turbines from natural gas reserves with relatively low methane concentrations. The invention uses such reserves to generate electric power. The invention permits the use of these reserves at significantly lower co... | 04/01/2008 |
| 7344682 | Oxidizer and oxidation process for a desulphurization process An improved oxidizer for liquid reduction-oxidation desulphurization processes uses a hollow fiber membrane contactor. A pressurized, oxygen containing gas stream is introduced into the interior of the hollow fiber membrane while a liquid reduction-oxidation catalys... | 03/18/2008 |
| 7312173 | Regeneration method with efficient oxygen utilization This invention relates to regeneration of coked catalyst by combustion so that the catalyst can be reused in a hydrocarbon conversion reaction. The completion of coke burn is generally measured with a combination of temperature or change in oxygen concentration. Dro... | 12/25/2007 |
| 7304011 | Compositions and processes for reducing NOemissions during fluid catalytic cracking Compositions for reduction of NOx generated during a catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise a fluid catalytic cracking catalyst composition, preferably containing a Y-type zeoli... | 12/04/2007 |
| 7297651 | Process for removing sulfur particles from an aqueous catalyst solution and for removing hydrogen sulfide and recovering sulfur from a gas stream The invention relates to a process for removing sulfur particles from an aqueous catalyst solution used to remove hydrogen sulfide from a gas stream (1, 5), comprising the steps of directing a flow of a suspension (12) comprising reduced catalyst solut... | 11/20/2007 |
| 7291311 | Process for controlling a moving bed combustion zone and its use Process for controlling the combustion zone of a fluidized bed process comprising a regeneration zone and a reaction zone, the catalyst circulating between these two zones, and the regeneration zone comprising a combustion stage of the coke deposited on the catalyst... | 11/06/2007 |
| 7285258 | Conversion of CO to CO Gold oxide is precipitated together with iron oxide from a solution containing a gold source and an iron source; the gel formed thereby is washed, dried, ground to a size range of 0.85 mm to 4.25 mm, calcined and activated by passing a hydrogen and oxygen containing... | 10/23/2007 |
| 7271116 | Catalyst The present invention provides a catalyst containing titanium in bonded form, non-crystalline silicon dioxide and at least one crystalline silicate phase which has a zeolite structure, wherein the non-crystalline silicon dioxide is applied to at least one of the cry... | 09/18/2007 |
| 7262147 | Method for preparing dehydrocyclodimerization catalyst This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant pr... | 08/28/2007 |
| 7259283 | Alkylation and catalyst regenerative process A process for the regeneration of a deactivated zeolite beta catalyst such as rare earth promoted zeolite beta catalyst deactivated in the course of an aromatic alkylation reaction. A zeolite beta conversion catalyst deactivated with the deposition of coke is heated... | 08/21/2007 |
| 7256318 | Regeneration temperature control in a catalytic reaction system This invention is directed to controlling regenerator temperature in an oxygenate to olefin process. Because a significant amount of heat can produced in the regenerator during the regeneration process, at least a portion of the heat must be removed to keep the syst... | 08/14/2007 |
| 7256149 | Catalyst regeneration process Used noble metal-containing titanium zeolite catalysts, that have been employed in the liquid-phase epoxidation of olefins with hydrogen and oxygen in the presence of a buffer, are regenerated by heating the used catalyst at a temperature of at least 250° C. in the... | 08/14/2007 |
| 7251981 | Method and device for diagnosing gas sensor degradation A degradation diagnosis method for simply performing degradation diagnosis of a gas sensor such as a hydrogen sensor. The hydrogen sensor has a reference detector member and common detector member, with each detector member respectively constituted of a detector ele... | 08/07/2007 |
| 7226883 | Oxidizer and oxidation process for a desulphurization process An improved oxidizer for liquid reduction-oxidation desulphurization processes uses a hollow fiber membrane contactor. A pressurized, oxygen containing gas stream is introduced into the interior of the hollow fiber membrane while a liquid reduction-oxidation catalys... | 06/05/2007 |
| 7217401 | Mercury removal from activated carbon and/or fly ash A method for reducing the amount of mercury affixed to a sorbent and/or fly ash is disclosed. The method includes the steps of providing an amount of sorbent and/or fly ash wherein at least a portion of the amount of sorbent and/or fly ash has particulates having me... | 05/15/2007 |
| 7214636 | Catalyst regenerator for reducing entrained catalyst loss The present invention is directed to a swaged catalyst regenerator and processes for using the catalyst regenerator. In one embodiment, the swaged catalyst regenerator includes a regeneration zone having a first major diameter and into which a regeneration medium an... | 05/08/2007 |
| 7211692 | Long-term operation of a heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid A process for the long-term operation of a two-stage heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid, in which the temperature of the fixed catalyst beds is increased over the time and the gas phase partial oxidation is interrupted f... | 05/01/2007 |
| 7199069 | Method for destruction of organic compounds by co-oxidation with activated carbon A method for oxidizing carbon adsorbable organic compounds in a controlled manner within a bed of activated carbon. The bed of activated carbon is exposed to a source of molecular oxygen, such as air, and is controlled within a temperature range whereby the molecula... | 04/03/2007 |
| 7198862 | Process for preparing a low-sulfur reformate gas for use in a fuel cell system The invention provides a multistep process for preparing a low-sulfur reformate gas for use in a fuel cell system. The process comprises catalytic steam reforming of a reactant gas mixture comprising sulfur-containing hydrocarbons and steam in a first step to make a... | 04/03/2007 |
| 7172685 | Desulfurization system with novel sorbent transfer mechanism A hydrocarbon desulfurization system employing regenerable solid sorbent particulates in a fluidized bed desulfurization reactor. The sulfur-loaded sorbent particulates are continuously withdrawn from the reactor and transferred to a regenerator. A novel solids tran... | 02/06/2007 |
| 7157397 | Process for the production of mesitylene A process is described for the synthesis of mesitylene, characterized in that mesitylene is obtained starting exclusively from pseudocumene, without the use of any other chemical compound, operating in continuous, at a temperature ranging from 225 to 400° C., at a ... | 01/02/2007 |
| 7087546 | Process for regenerating and rejuvenating additive-based catalysts The present invention pertains to a process for regenerating and rejuvenating an additive-based hydrotreating catalyst containing Group VIB and Group VIII hydrogenation metals. The process comprises the steps of regenerating the catalyst by contacting it with an oxy... | 08/08/2006 |
| 7056857 | Fischer-tropsch catalysts using multiple precursors A method for making a catalyst is provided that features loading a catalytic metal to a support using at least two different precursor compounds of that said metal; and loading the promoter to the support in an amount effective so as to achieve similar promotion as ... | 06/06/2006 |
| 7053260 | Reducing temperature differences within the regenerator of an oxygenate to olefin process The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises: a) contacting the feedstock in a reaction zone with a catalyst comprising i) a molecular sieve having defined pore openings and ii) a CO oxidati... | 05/30/2006 |
| 7045477 | Process for continuously regenerating catalyst particles A process for continuously regenerating catalyst particles comprising: passing deactivated catalyst particles downwards in sequence through the first coke-burning zone, second coke-burning zone, oxychlorination zone, and calcination zone in the regenerator, wherein ... | 05/16/2006 |
| 7037871 | Low-temperature regeneration of zeolite L using ozone A process is disclosed for regenerating a hydrocarbon conversion catalyst comprising zeolite L with ozone. The catalyst is contacted with ozone at a temperature of from about 20 to about 250° C. and a concentration of ozone of from about 0.1 to about 5 mol-%. The c... | 05/02/2006 |
| 7029517 | Devices and methods for hydrogen storage and generation Disclosed herein is a method for the storage of hydrogen comprising contacting a hydrogen storage composition with a gaseous mixture comprising hydrogen; and irradiating the hydrogen storage composition with radio frequency radiation or microwave radiation in an amo... | 04/18/2006 |
