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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...
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...
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...
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...
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...
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...
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...
7285258 Conversion of CO to CO2  
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...
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...
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...
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...
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...
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...
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...
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...
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...
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,...
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...
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,...
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....
7026262 Apparatus and process for regenerating catalyst  
Disclosed is an apparatus and process for prolonging the residence time of catalyst in a chamber for regenerating catalyst. Spent catalyst, perhaps from an FCC reactor, is introduced into a chamber...
7018948 Activation and regeneration of a hydro-oxidation catalyst  
A process of activating a fresh catalyst or regenerating a deactivated catalyst which is used in a hydro-oxidation process, preferably, the hydro-oxidation of an olefin in the presence of oxygen...
6987078 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...
6982068 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...
6965057 Oxygenate to olefin process  
The invention relates to a process for converting an oxygenate feedstock into an olefin product stream comprising (a) contacting an oxygenate feedstock with a molecular sieve catalyst in a reactor...
6958304 Method for regenerating a zeolite catalyst  
A process for the regeneration of a zeolite catalyst which comprises treating the catalyst thermally in the presence of a gas stream at temperatures above 120° C., the weight-based residence time...
6939823 Stripper and a stripping process for removing the flue gas carried by regenerated catalyst  
A stripper and a stripping process for removing the flue gas carried by regenerated catalyst. A cylindrical stripper mainly comprises a degassing pipe at the longitudinal axis, a horizontal pipe...
6916756 Regeneration of a dehydrogenation catalyst  
A process for regenerating a dehydrogenation catalyst comprises the steps (a)-(f): (a) flushing with inert gas at a pressure of from 0.5 to 2.0 bar and a gas hourly velocity of from 1000 to 50 000...
6916417 Catalytic cracking of a residuum feedstock to produce lower molecular weight gaseous products  
The present invention provides a catalytic cracking process. The process includes introducing at least one species of a natural or synthetic residuum containing feedstock and a catalyst into a...
6913687 Method of producing synthesis gas from a regeneration of spent cracking catalyst  
The present invention provides a method of producing a synthesis gas from a regeneration of a spent cracking catalyst. The method includes introducing a spent cracking catalyst into a first...
6905998 Catalyst performance recovery method for reforming catalyst apparatus  
In a reforming catalyst apparatus provided with a reforming catalyst for forming a hydrogen rich reformed gas by a reforming reaction of the fuel with water, the catalyst performance can be...
6900151 In situ catalyst regeneration/activation process  
An in situ process for conducting regeneration of spent hydrocarbon synthesis catalyst. Regenerated, but not yet re-activated, catalyst ( 15 ) may be introduced into an operating HCS reactor ( 1 )...
6872679 Heterogeneous catalyst regeneration  
Used titanium-containing silicon oxide catalysts are regenerated by heating the used catalyst at a temperature of at least 400° C. in the presence of a oxygen-containing gas stream, followed by...
6861383 Catalyst support material and use thereof  
A process for the preparation of a catalyst support material involving the steps of: (a) subjecting a used titania-on-silica catalyst to a decoking treatment, (b) washing the decoked catalyst with...
6838487 Method and apparatus for regenerating an iron-based Fischer-Tropsch catalyst  
Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to...
6800579 Catalyst regeneration  
There is provided a process for regenerating the activity of used metal catalysts for the hydrogenation of carbon monoxide comprising decreasing the hydrocarbon content thereof, calcining under an...
6787496 Supported catalyst treatment  
There is provided a process for renewing the activity of supported metal catalysts for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons comprising decreasing the hydrocarbon...
6777451 Catalyst enhancement  
A process for enhancing metal catalysts for carbon monoxide hydrogenation comprising reducing the catalyst so that at least a portion is in the metallic state, impregnating under a non-oxidative...
6753354 Fischer-tropsch catalyst enhancement  
There is provided a process for hydrocarbon synthesis wherein a supported metal catalyst for hydrogenating carbon monoxide to form a mixture of hydrocarbons is regenerated by decreasing its...
6753351 Supported catalyst activation  
A process for activating a supported metal catalyst or catalyst precursor useful for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons, comprising reducing with a...
6753286 Supported catalyst regeneration  
There is provided a process for renewing the activity of used, supported metal catalysts for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons comprising decreasing the...
6746653 Process for recovering catalyst transition metals from salt-containing reaction mixtures  
Transition metals may be recovered from a salt-containing mixture containing at least one transition metal compound, salts, and organic compounds by separating from the salt-containing mixture a...
6710002 Method for regenerating a zeolitic catalyst  
A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than...
6693056 Process for passivating pyrophorous catalysts  
The present invention relates to a process for passivating pyrophorous solids by using nitrogen, carbon dioxide and oxygen under closely defined conditions to obtain a uniformly passivated solid.
6649555 Reactivation of deactivated sorbents  
A deactivated sorbent composition is reactivated by contacting the deactivated sorbent with a reducing stream under activation conditions sufficient to reduce the amount of sulfates associated with...
6649043 Regeneration of hydrogen sulfide sorbents  
A process to regenerate metal oxide desulfurization sorbents using an oxidizing and reducing atmosphere. The sorbents may be mono- or multi-metallic in nature, and preferably comprise Cu, Ni and/or...
6635795 Desulfurization with improved sorbent regeneration  
While contacting under regeneration conditions an oxygen-containing stream with a sorbent comprising a promoter metal and zinc sulfide which has been sulfurized by contact with sulfur-containing...
6635596 Process for regenerating additive-based catalysts  
The present invention pertains to a process for regenerating a used additive-based catalyst comprising the step of regenerating the catalyst by contacting it with an oxygen-containing gas at a...
6585884 Method of producing synthesis gas from a regeneration of spent cracking catalyst  
The present invention provides a method of producing a synthesis gas from a regeneration of spent cracking catalyst. The method includes introducing a spent cracking catalyst into a first...
6579820 Reactor modifications for NOx reduction from a fluid catalytic cracking regeneration vessel  
A process for regenerating a spent catalyst having coke deposits thereon in a catalyst regeneration vessel having a dense phase and a dilute phase, wherein the process comprises the steps of: (a)...
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