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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...
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...
8128811 Hydroprocessing using rejuvenated supported hydroprocessing catalysts  
Methods for hydroprocessing of hydrocarbon feedstocks, including hydrodesulfurization and hydrodenitrogenation, using rejuvenated supported metallic catalysts are provided. The supported metallic...
8101145 Exhaust treatment system and method of operation  
An exhaust treatment system is provided. Method of increasing activation of NOx reduction catalyst using two or more reductant is discussed. The exhaust treatment system includes an exhaust source,...
8084383 Gasoline sulfur reduction catalyst for fluid catalytic cracking process  
The present invention is directed to certain catalyst compositions and processes that are capable of reducing sulfur compounds normally found as part of the gasoline fraction streams of fluid...
8012899 Recycling of ionic liquid catalyst  
Provided is a process for safely transporting or recycling an ionic liquid catalyst based on chloroaluminates. The process comprises mixing a secondary alcohol with an ionic liquid based on a...
8007660 Reduced puffing needle coke from decant oil  
A reduced puffing needle coke is formed from decant oil, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon...
8007658 Reduced puffing needle coke from coal tar  
A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to...
8007659 Reduced puffing needle coke from coal tar distillate  
A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized...
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...
7981832 Methods of activating chromium catalysts  
New methods for activating chromium catalysts for polymerization processes decrease the amount of time required for activation and increase catalyst activity. Rapid heating to a first temperature...
7956000 Process for activating a hydrotreating catalyst  
The invention pertains to a process for activating an hydrotreating catalyst comprising a Group VIB metal oxide and a Group VIII metal oxide which process comprises contacting the catalyst with an...
7956002 Ionic liquid catalyst regenerated using a regeneration metal in the presence of added hydrogen  
An ionic liquid catalyst, which has been regenerated by contacting a used ionic liquid catalyst with at least one regeneration metal in a regeneration zone in the presence of added hydrogen under...
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...
7901644 Catalytic gasification process with recovery of alkali metal from char  
Processes are described for the extraction and recovery of alkali metal from the char that results from catalytic gasification of a carbonaceous material. Among other steps, the processes of the...
7897827 Propylene recovery during regeneration of an oxygenate removal unit  
Processes and systems are disclosed that relate to the removal of impurities and separation the light olefins from an MTO product vapor stream. Specifically, the processes and systems relate to...
7897126 Catalytic gasification process with recovery of alkali metal from char  
Processes are described for the extraction and recovery of alkali metal from the char that results from catalytic gasification of a carbonaceous material. Among other steps, the processes of the...
7884045 Regeneration of ionic liquid catalyst and recovery of an oil  
A process for regenerating a used acidic ionic liquid catalyst, comprising: a. contacting the catalyst and hydrogen with a supported hydrogenation catalyst under hydrogenation conditions; and b....
7858065 Process for producing supported ruthenium and process for producing chlorine  
The present invention provides a process for producing supported ruthenium, which comprises recovering a ruthenium compound from supported ruthenium used as a catalyst in production of chlorine by...
7858549 Method for regeneration of iron-loaded denox catalysts  
The invention relates to a method for regenerating denox catalysts having an increased SO2/SO3 conversion rate as a result of the cumulation of iron compounds, and is characterized in that the...
7847142 HF alkylation process with acid regeneration  
The regeneration of HF alkylation acid in an alkylation unit is improved by withdrawing a vapor stream from the HF regenerator tower and condensing the stream to form a liquid fraction which is...
7846869 Process for pre-treating a desulfurization sorbent  
A process for presulfiding a plurality of sorbent particles prior to using at least a portion of the particles to at least partially desulfurize a hydrocarbon feed stream. Typically, presulfiding...
7838454 Method and apparatus for desorbing material  
The present invention relates to a method and apparatus for the continuous countercurrent desorption of targeted materials including metals, non-metals and inorganic and/or organic compounds of...
7811967 Method of preparing catalyst support from a waste catalyst  
A method of preparing, preferably recycling, a catalyst support material is disclosed and is particularly applicable to recycling a titania support. The invention includes crushing the used...
7807597 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 ...
7799720 Method of regenerating carbon dioxide gas absorbent  
A method of regenerating a carbon dioxide gas absorbent includes heating a carbon dioxide gas absorbent containing lithium silicate, which has been absorbed a carbon dioxide gas, under a reduced...
7754636 Removal of excess metal halides from regenerated ionic liquid catalysts  
A process for removing metal halides from regenerated ionic liquid catalyst comprising interacting a regenerated ammonium-based metal-halide ionic liquid catalyst or an ammonium-based metal-halide...
7754635 Catalyst reprocessing  
A process for re-processing of a Fischer-Tropsch catalyst is described comprising the steps of; (i) de-waxing the Fischer-Tropsch catalyst, (ii) subjecting the de-waxed catalyst to...
7754933 Rejuvenating deactivated molecular sieve  
This invention is directed to a method of rejuvenating a molecular sieve that has decreased catalytic activity as a result of contact with moisture, and a method of using the rejuvenated catalyst...
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...
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...
7741239 Methods of regeneration of SCR catalyst poisoned by phosphorous components in flue gas  
A method of regeneration of a SCR catalyst for use in high temperature thermal processes such as in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein...
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....
7727925 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...
7727927 Method of making tungsten-containing fuel cell catalysts  
Activation of a tungsten-containing catalyst using water in a PEM-type fuel cell is described as well as cathode operation of the tungsten-containing catalyst.
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...
7696120 Method of restoring catalytic activity to a spent hydroprocessing catalyst, a spent hydroprocessing catalyst having restored catalytic activity, and a hydroprocessing process  
Disclosed is method for restoring catalytic activity to a hydroprocessing catalyst that has become spent due to its use or to the deposition of carbon thereon. The method includes a carbon...
7691771 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...
7678727 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...
7678735 FCC additive for partial and full burn NOx control  
Ammoxidation catalysts have been found effective for the reduction of emissions of NOx and NOx precursors during FCC catalyst regeneration.
7674740 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...
7651970 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...
7641874 Microwave induced destruction of impurities from biogas and nitrogen oxides from engine exhaust  
Granulated Activated Carbon (GAC) is used to remove hydrogen sulfide (H2S) from the biogas produced in an anaerobic digester. The cleaned biogas is then combusted in a reciprocating engine. The...
7615510 Methods of activating chromium catalysts  
New methods for activating chromium catalysts for polymerization processes decrease the amount of time required for activation and increase catalyst activity. Rapid heating to a first temperature...
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...
7595033 Regeneration of nt-scr catalysts  
A process and device for purifying flue gases in refuse incineration plants during regeneration of a catalyst which serves for reducing nitrogen oxides, by, in a first step, removing acidic...
7592282 Enhancement of alkylation catalysts for improved supercritical fluid regeneration  
A method of modifying an alkylation catalyst to reduce the formation of condensed hydrocarbon species thereon. The method comprises providing an alkylation catalyst comprising a plurality of active...
7592293 Method for producing a multi-layer catalyst for obtaining phthalic anhydride  
The present invention relates to processes for improving or optimizing a catalyst for the preparation of phthalic anhydride by gas-phase oxidation of o-xylene and/or naphthalene, which comprises...
7585803 Catalyst regeneration method  
A method of operating a continuous system for a catalyst regeneration process wherein the regeneration section includes a combustion zone, at least one oxygen boost zone, a halogenation zone and a...
7585808 Methods for preparing catalysts  
The present invention is directed to processes for preparing supported metal catalysts comprising one or more catalytically active metals applied to a porous catalyst support and to processes that...
Matches 1 - 50 out of 210 1 2 3 4 5 >