Class 502/53 - Elemental hydrogen

Subclass of Class 502 - Catalyst, solid sorbent, or support therefor: product or process of making
Definition: Process in which the treating fluid includes free element
No. of applications: 25
Last issue date: 05/19/2011

Application No.	Application Title	Issue Date
20110118105	Use of microwave energy to remove contaminating deposits from a catalyst The disclosure relates to apparatus, systems, and methods (a) for performing catalytic reactions using a fixed-bed catalyst (e.g., packed particulate bed or catalyst supported on a monolithic substrate) and (b) for regenerating the catalytic activity of the catalyst. An...	05/19/2011
20110009614	PROCESSES AND REACTOR SYSTEMS FOR CONVERTING SUGARS AND SUGAR ALCOHOLS Processes and reactor systems are provided for the conversion of sugars to sugar alcohols using a hydrogenation catalyst, which includes apparatus and method for in-line regeneration of the hydrogenation catalyst to remove carbonaceous deposits....	01/13/2011
20100311567	REGENERATION OF ZEOLITE CARBONYLATION CATALYSTS A process for the in-situ regeneration of a zeolite catalyst in a carbonylation process for the production of at least one of methyl acetate and acetic acid by contacting methanol, dimethyl ethyl or dimethyl carbonate with carbon monoxide in the presence of a zeolite ca...	12/09/2010
20100304955	Catalysts A process for regenerating a spent cobalt Fischer-Tropsch synthesis catalyst includes subjecting a spent particulate cobalt Fischer-Tropsch synthesis catalyst sequentially to a dewaxing treatment, an oxidation treatment at a pressure of 4 to 30 bar(a) and a reduction tr...	12/02/2010
20100300077	DUAL-STAGE METHOD FOR THE REACTIVATION OF THERMALLY AGED NITROGEN OXIDE STORAGE CATALYSTS Nitrogen oxide storage catalysts are used to remove the nitrogen oxides present in the lean exhaust gas of lean-burn engines. As a result of the stress due to high temperatures in vehicle operation, they are subject to thermal aging processes which affect both the nitro...	12/02/2010
20100292071	PROCESS FOR PREPARING SILICOALUMINOPHOSPHATE (SAPO) MOLECULAR SIEVES, CATALYSTS CONTAINING SAID SIEVES AND CATALYTIC DEHYDRATION PROCESSES USING SAID CATALYSTS A new process for producing a SAPO molecular sieve is disclosed wherein a mixture of a P source with an Al source is subjected to a digestion step under stirring before adding a Si source and a template. The slurry resulting after addition of all chemicals is subjected ...	11/18/2010
20100285949	Process for Rejuvenating a Catalyst Composition This disclosure relates to a method for rejuvenating a catalyst, comprising contacting the catalyst with a gaseous feedstock at rejuvenation conditions for at least one hour to form a rejuvenated catalyst and a gaseous product, wherein the catalyst comprises at least 10...	11/11/2010
20100152022	Catalyst regeneration method A process is disclosed for regenerating a used catalyst comprising two or more noble metals supported on a carrier. The method comprises calcining a used catalyst comprising a noble metal and a transition metal supported on an inorganic carrier in an oxygen-containing g...	06/17/2010
20100137125	METHOD OF REGENERATING LOWER HYDROCARBON AROMATIZING CATALYST To improve stability of catalytic performance, an aromatizing catalyst for converting lower hydrocarbons into aromatic compounds is regenerated. A regeneration process of the aromatizing catalyst according to the present invention includes the steps of: (a) reacting the...	06/03/2010
20100099550	Homogeneous Process for the Hydrogenation of Carboxylic Acids and Derivatives Thereof A homogenous process for the hydrogenation of the carboxylic acids and/or derivatives thereof in the presence of a catalyst comprising ruthenium, rhodium, iron, osmium or palladium, and an organic phosphine is described in which the hydrogenation is carried out in the p...	04/22/2010
20090253572	REGENERATION OF IONIC LIQUID CATALYST USING A REGENERATION METAL IN THE PRESENCE OF ADDED HYDROGEN A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with at least one ‘regeneration’ metal in a regeneration zone in the presence of added hydrogen under regeneration conditions for a time sufficient to...	10/08/2009
20090247392	IN-SITU REGENERATION OF A CATALYST MASKED BY CALCIUM SULFATE An in-situ method for regenerating a deactivated catalyst removes a calcium sulfate layer masking active catalyst sites. A reducing agent converts the calcium sulfate to calcium oxide, which is then removed, by reintrainment into the flue gas steam using soot blowers or...	10/01/2009
20090247393	PROCESS FOR REGENERATING A CATALYST A process for regenerating a fixed bed of Fischer-Tropsch catalyst particles, of which at least 40 wt % of the catalyst particles have a size of at least 1 mm, in situ in a Fischer-Tropsch reactor tube. The process comprises the steps of: (i) optionally oxidising the ca...	10/01/2009
20090074644	REDUCED TEMPERATURE CALCINING METHOD FOR HYDROGEN GENERATION A method and apparatus are disclosed for regenerating calcium oxide used in the production of hydrogen gas. The method includes steps of: (a) streaming a solid reactant into an inlet port of a contactor vessel; (b) streaming a purge oxidant into an oxidant port of the c...	03/19/2009
20080004173	Process for regenerating catalyst for preparing unsaturated aldehyde and/or unsaturated carboxylic acid and process for preparing unsaturated aldehyde and/or unsaturated carboxylic acid 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 molecular o...	01/03/2008
20070249486	Regeneration of ionic liquid catalyst using a regeneration metal in the presence of added hydrogen A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with at least one ‘regeneration’ metal in a regeneration zone in the presence of added hydrogen under regeneration conditions for a time sufficient to...	10/25/2007
20070142216	Regeneration of ionic liquid catalysts A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with an isoparaffin-containing stream and Broensted acid in a reaction zone under alkylation conditions for a time sufficient to increase the activity of ...	06/21/2007
20070142215	Regeneration of ionic liquid catalyst by hydrogenation using a supported catalyst A process for regenerating a used acidic ionic liquid catalyst comprising the steps of contacting the used ionic liquid catalyst and hydrogen with a supported hydrogenation catalyst comprising a hydrogenation component on a support in a reaction zone under hydrogenation...	06/21/2007
20070142214	Regeneration of ionic liquid catalyst by hydrogenation using a metal or metal alloy catalyst A process for regenerating a used acidic ionic liquid catalyst which has, been deactivated comprising the steps of contacting the used chloroaluminate ionic liquid catalyst and hydrogen with a metal hydrogenation catalyst in a reaction zone under hydrogenation condition...	06/21/2007
20070142211	Regeneration of ionic liquid catalyst A process for regenerating a used ionic liquid catalyst comprising a cationic component and an anionic component, which catalyst has been deactivated by conjunct polymers complexed with the anionic component comprising the steps of adding a reagent which is capable of r...	06/21/2007
20070142213	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, addition of...	06/21/2007
20070142218	Regeneration of ionic catalyst by hydrogenation using a homogeneous catalyst A process for regenerating a used acidic ionic liquid catalyst comprising the steps of contacting the used ionic liquid catalyst and hydrogen with a homogeneous hydrogenation catalyst in a reaction zone under hydrogenation conditions for a time sufficient to increase th...	06/21/2007
20070142217	Regeneration of ionic liquid catalyst by hydrogenation using metal and acid A process for regenerating a used acidic ionic liquid catalyst which has been deactivated by conjunct polymers comprising combining the used catalyst, a metal and a Broensted acid which acts a source of hydrogen in a reaction zone under hydrogenation conditions for a ti...	06/21/2007
20060111233	Removal of nitrogen and sulfur contamination from catalysts by hot hydrogen stripping Nitrogen and optionally sulfur contamination can be removed from catalysts, such as spent and regenerated catalysts, by stripping them with a hydrogen-containing stream at high temperatures, such as between about 100 to about 600° C. Lower pressures such as a gauge pre...	05/25/2006
20050032626	Reduction method of catalysts using non-thermal plasma A method of catalysts reduction using non-thermal plasma according to the present invention is characterized to reduce catalysts containing metal compounds by bringing them into contact with hydrogen-containing gas under a non-thermal plasma state. In the method of cata...	02/10/2005

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Class 502/53 - Elemental hydrogen