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8173566 |
Process for regenerating a spent sorbent
A method and apparatus is provided for regenerating a sorbent that has been poisoned by components derived from flue gas. The sorbent is treated with an agent to remove the poisoning components and...
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8167974 |
Terephthalic acid purge filtration rate by controlling % water in filter feed slurry
The process relates improving the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic acid, while utilizing pressure...
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8153542 |
Method for treating flue gas catalysts
A method for treating a catalyst base that comprises a contact area of porous material. A fluid, such as a flue gas stream, can be conducted along the contact area. A catalytically relevant...
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8148284 |
Injection of liquid sorbent conditioning into a sorbent transporting passageway
A system for effecting the pretreatment therewith of a sorbent comprising a conveying line (105), such as a pipe, and a plurality of solution nozzles operative for purposes of introducing a...
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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...
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8114802 |
Heavy oil upgrade process including recovery of spent catalyst
A process to upgrade heavy oil and convert the heavy oil into lower boiling hydrocarbon products is provided. The process employs a catalyst slurry comprising catalyst particles with an average...
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8084661 |
Extraction of ASO from spent sulfuric acid using liquid SO2
A process for the regeneration of spent sulfuric acid including contacting spent sulfuric acid containing acid soluble oils (ASO) with sulfur dioxide to extract at least a portion of the ASO from...
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7964156 |
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...
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7955999 |
System and apparatus for ionic liquid catalyst regeneration
Disclosed are a system and an apparatus for regenerating an ionic liquid catalyst, which has been deactivated by conjunct polymers during any type of reaction producing conjunct polymers as a...
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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...
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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...
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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...
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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....
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7867936 |
Process for passivating porous ceramic articles and an article made therefrom
A method for passivating a porous ceramic article containing microcracks including filling the microcracks with a liquid, such as water, and then applying a washcoat as described herein.
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7838455 |
Method of regeneration of titanium-containing molecular sieve catalyst
Disclosed herein is a method of regenerating a titanium-containing molecular sieve catalyst. Particularly, this invention provides a method of regenerating a titanium-containing molecular sieve...
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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...
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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 ...
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7790646 |
Conversion of fine catalyst into coke-like material
A process for converting fine catalyst slurried in heavy oil into a coke-like material from which catalytic metals can be recovered comprises mixing fine catalyst slurried in heavy oil with...
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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...
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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...
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7737068 |
Conversion of fine catalyst into coke-like material
A process for recovering catalytic metals from fine catalyst slurried in heavy oil comprises pyrolizing fine catalyst slurried in heavy oil to provide one or more lighter oil products and a...
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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....
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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...
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7723251 |
Method of regeneration of SCR catalyst
A method of regeneration of a SCR catalyst for use in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein poisons are removed from the catalyst. The...
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7704908 |
Method for reusing rhenium from a donor spent epoxidation catalyst
A method for reusing rhenium from a donor spent epoxidation catalyst, the method comprising: providing a donor comprising spent epoxidation catalyst comprising rhenium, the donor having a...
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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...
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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...
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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...
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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...
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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...
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7629287 |
Reclamation of a titanosilicate, and reconstitution of an active oxidation catalyst
A method of reclaiming a titanosilicate from a deactivated or spent oxidation catalyst containing a titanosilicate having deposited thereon one or more catalytic metals, such as gold, and...
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7622416 |
Hydrogenation catalyst, its preparation and use
The present invention discloses a hydrogenation catalyst comprising metallic palladium supported on activated carbon support, wherein the penetration depth of metallic palladium in the support is...
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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...
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7585404 |
Decomposition of waste products formed in slurry catalyst synthesis
This application discloses a process for decomposition of ammonium sulfates found in a stream comprising ammonium sulfate and slurry catalyst in oil. The ammonium sulfate is broken down into...
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7559993 |
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...
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7550641 |
Methods for recovering activity of molecular sieve catalysts
The invention is directed to a method of rejuvenating silicoaluminophosphate molecular sieve catalyst that has been deactivated hydrothermally as well as a method of using the rejuvenated catalyst...
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7491750 |
Continuous catalyst / wax separation method
An improved Method for the separation of catalyst particles and the wax product from the output slurry of a Fischer-Tropsch bubble column reactor comprising the contact of a hydrocarbon solvent...
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7491369 |
Oxidation system with internal secondary reactor
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out...
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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, a...
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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...
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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, and is...
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7303731 |
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...
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7232782 |
Regeneration, pretreatment and precipitation of oxides of manganese
Methods and systems for regenerating and pretreating oxides of manganese and precipitation of oxides of manganese from manganese salt solutions. The oxides of manganese and manganese salt solutions...
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7115537 |
Process for the regeneration of zeolite catalysts
A process for the regeneration of a zeolitic catalyst which is at least partially exhausted by use in the synthesis of optionally substituted methylenedianiline (MDA) and derivatives thereof, or of...
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7018447 |
Method of cleaning a rotary concentrator
A method of cleaning the adsorbent media of a rotary concentrator in-situ while maintaining operation of the concentrator, including directing washing liquid into the sectors in the desorb plenum,...
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6982234 |
Methods and apparatus for removing catalyst from oxidation reactor effluent
Methods and apparatus for removing a catalyst from a reaction mixture formed by reacting a hydrocarbon or an oxygenated hydrocarbon with an oxidant in the presence of the catalyst in a reactor, in...
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6982235 |
Method for regenerating solid catalyst
A process for regenerating a solid catalyst which has been used for producing propylene oxide through an epoxidation reaction of propylene with an organic peroxide in a reactor packed with the...
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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...
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6872678 |
Process for activating a catalyst containing an S-containing additive
The present invention pertains to a process for activating a catalyst composition comprising at least one hydrogenation metal component of Group VI and/or Group VIII of the Periodic Table, and an...
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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...
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