| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 502038000 | Treating with free oxygen containing gas | 37 |
| 20110039686 | Fast regeneration of sulfur deactivated Ni-based hot biomass syngas cleaning catalysts - A new regeneration method has been developed which can effectively and efficiently remove sulfur from Ni-based steam reforming catalysts. In its simplest form the present invention comprises the steps of oxidizing a catalyst with a dilute O | 02-17-2011 |
| 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 autothermal reformation (ATR) reaction system is described for illustrative purposes, although the apparatus, systems, and methods can be applied more generally to other catalytic cracking/reformation reaction systems and other catalytic reaction systems, in particular reaction systems in which carbon-based and/or sulfur-based catalyst contaminants are produced during system operation. | 05-19-2011 |
| 20110251046 | Systems and Methods for Regenerating A Spent Catalyst - Systems and methods for regenerating a spent catalyst are provided. The method can include heating a hydrocarbon and a coke precursor in the presence of catalyst particles to provide a cracked hydrocarbon product and coked catalyst particles. The cracked hydrocarbon product and the coked catalyst particles can be selectively separated to provide a hydrocarbon product and coked catalyst particles. The coked catalyst particles can be mixed with a carrier fluid to provide a mixture. The mixture can be introduced to an upper surface of a dense phase catalyst zone disposed within a regenerator. A gas can be introduced to a lower zone of the dense phase catalyst zone. At least a portion of the carbon deposited on the coked catalyst particles can be combusted to provide a flue gas, heat, and a regenerated catalyst. | 10-13-2011 |
| 20110251047 | Systems and Methods for Regenerating A Spent Catalyst - Systems and methods for regenerating a spent catalyst are provided. The method can include mixing a spent catalyst with a carrier fluid to provide a mixture. The spent catalyst can include carbon deposited on at least a portion thereof. The carrier fluid can include an oxygen containing gas. The mixture can be introduced to or above an upper surface of a dense phase catalyst zone disposed within a regenerator. A gas can be introduced to a lower zone of the dense phase catalyst zone. At least a portion of the carbon deposited on the catalyst can be combusted to provide a flue gas, heat, and a regenerated catalyst. | 10-13-2011 |
| 20110269620 | PROCESS FOR REGENERATING CATALYST IN A FLUID CATALYTIC CRACKING UNIT - One exemplary embodiment can be a process for regenerating catalyst in a fluid catalytic cracking unit. Generally, the process includes providing a feed to a riser of a reaction vessel, and providing a stream to a distributor positioned within a void proximate to an inlet receiving unregenerated catalyst in a regenerator. The feed can include at least one of a gas oil, a vacuum gas oil, an atmospheric gas oil, a coker gas oil, a hydrotreated gas oil, a hydrocracker unconverted oil, and an atmospheric residue | 11-03-2011 |
| 20120083404 | PROCESS FOR REGENERATING CATALYST - Disclosed is a catalyst distributor and process for mixing spent catalyst and recycled regenerated catalyst in a regenerator vessel. Mixing is conducted in a confined space to which catalyst is delivered from catalyst conduits protruding through the wall of the regenerator. | 04-05-2012 |
| 20120270724 | PROCESS FOR REGENERATING A REFORMING CATALYST - The present invention is directed to an in situ process for regenerating a reforming catalyst within a reactor by:
| 10-25-2012 |
| 20130260984 | PROCESS FOR REGENERATING CATALYST - Disclosed is a catalyst distributor and process for mixing spent catalyst and recycled regenerated catalyst in a regenerator vessel. Mixing is conducted in a confined space to which catalyst is delivered from catalyst conduits protruding through the wall of the regenerator. | 10-03-2013 |
| 20140155255 | PROCESS FOR THE REGENERATION OF A COPPER, ZINC AND ZIRCONIUM OXIDE-COMPRISING ADSORPTION COMPOSITION - The invention relates to a process for the regeneration of a copper-, zinc- and zirconium oxide-comprising adsorption composition after use thereof for the adsorptive removal of carbon monoxide from substance streams comprising carbon monoxide and at least one olefin, in which the adsorption composition is heated to a temperature in the range from 160 to 400° C. and a regeneration gas is passed through the adsorption composition, wherein the regeneration gas comprises 1000 to 3000 ppm of oxygen in an inert carrier gas. | 06-05-2014 |
| 20150148214 | PROCESS FOR REGENERATING CATALYST IN A FLUID CATALYTIC CRACKING UNIT - One exemplary embodiment can be a process for regenerating catalyst in a fluid catalytic cracking unit. Generally, the process includes providing a feed to a riser of a reaction vessel, and providing a stream to a distributor positioned within a void proximate to an inlet receiving unregenerated catalyst in a regenerator. The feed can include at least one of a gas oil, a vacuum gas oil, an atmospheric gas oil, a coker gas oil, a hydrotreated gas oil, a hydrocracker unconverted oil, and an atmospheric residue | 05-28-2015 |
| 20160067701 | CATALYST REGENERATORS AND METHODS FOR REGENERATING CATALYSTS - Catalyst regenerators and methods of their use are provided. A catalyst regenerator includes a combustion chamber with a combustion chamber diameter and a combustion chamber bottom. A mixing chamber is fluidly coupled to the combustion chamber at the combustion chamber bottom, where the mixing chamber has an exterior wall and a mixing chamber diameter less than the combustion chamber diameter. A first and second catalyst inlet are fluidly coupled to the mixing chamber, and a mixing cylinder is within the mixing chamber. The mixing cylinder and the exterior wall define an annular space there-between, and the mixing cylinder includes a cylinder opening. | 03-10-2016 |
| 20160114316 | CATALYST REGENERATING METHODS AND APPARATUSES AND METHODS OF INHIBITING CORROSION IN CATALYST REGENERATING APPARATUSES - Methods and apparatuses for regenerating catalysts and methods of inhibiting corrosion in catalyst regenerating apparatuses are provided. An exemplary apparatus includes: a metal vessel configured to receive a spent catalyst stream and contact at least a portion of the spent catalyst stream with an oxygen containing environment at a sufficiently high temperature to burn coke present in the spent catalyst stream; a refractory material overlying at least a portion of an inner surface of the metal vessel; and a corrosion inhibiting material in contact with at least a portion of the inner surface of the metal vessel and disposed between the inner surface and at least a portion of the refractory material, wherein the corrosion inhibiting material is heat stable at a temperature of at least up to about 400° F. (about 204° C.) and inhibits contact of an acid environment with the inner surface of the metal vessel. | 04-28-2016 |
| 20160169506 | CATALYST COOLER FOR REGENERATED CATALYST | 06-16-2016 |
| 502039000 | And forming useful by-product | 4 |
| 20090163351 | SYSTEM AND METHOD OF REGENERATING CATALYST IN A FLUIDIZED CATALYTIC CRACKING UNIT - Systems and methods of improving synthesis gas quality in a fluid catalytic cracking unit are disclosed. In one example, a method comprises reacting a first stage regeneration gas comprising oxygen with spent catalyst from a reactor in a first stage of a regenerator to consume the oxygen in the first stage regeneration gas. This reaction produces a synthesis gas output and partially regenerated catalyst. The method further comprises reacting a second stage regeneration gas comprising oxygen with the partially regenerated catalyst in a second stage of the regenerator to regenerate the partially regenerated catalyst. This reaction produces the first stage regeneration gas for reaction with the spent catalyst in the first stage of the regenerator. Through the first and second stage reactions, the spent catalyst is regenerated and the synthesis gas quality is improved. | 06-25-2009 |
| 20150057146 | CATALYST REGENERATOR PROCESS - A method of operating a continuous or semi-continuous system for a catalyst regeneration process. The system comprises a regenerator, the regenerator comprising a combustion zone and a halogenation zone. The catalyst is fed into the regenerator. A circulating regeneration gas is introduced into a regenerator circuit including oxygen, the circulating regeneration gas having a nitrogen concentration that is less than air. Oxygen from the circulating regeneration gas reacts with the coke to provide water and carbon dioxide. Water and the carbon dioxide formed in this first reaction then further react with the coke to form carbon monoxide and hydrogen. | 02-26-2015 |
| 20150094201 | PROCESS FOR REGENERATING A COKED CATALYTIC CRACKING CATALYST - A process for regenerating a coked catalytic cracking catalyst which the carbon-containing deposits on the catalyst contains at least 1 wt % bio-carbon, based on the total weight of carbon present in the carbon-containing deposits is provided. Such coked catalytic cracking catalyst is contacted with an oxygen containing gas at a temperature of equal to or more than 550° C. in a regenerator to produce a regenerated catalytic cracking catalyst, heat and carbon dioxide. | 04-02-2015 |
| 20160059198 | CATALYST REGENERATORS AND METHODS FOR REGENERATING CATALYSTS - Catalyst regenerators and methods of their use are provided. A method includes combusting coke from the catalyst in a second stage regenerator to produce a second flue gas, where the second stage regenerator includes a second combustion chamber and a top having a top cross-sectional area. The coke is partially combusted from the catalyst in a first stage regenerator with a first combustion chamber having a first combustion chamber cross-sectional area greater than the top cross-sectional area. The first stage regenerator is positioned above the top of the second stage regenerator. The first combustion chamber includes a cylindrical section directly over the top and an annular section surrounding the cylindrical section. The second flue gas is vented into the first stage regenerator through a vent tube, and a portion of the second flue gas is dispersed into the annular section of the first combustion chamber. | 03-03-2016 |
| 502040000 | And adding heat by admixing solid heat carrier | 1 |
| 20130072376 | NOVEL CATALYST REGENERATION ZONE DIVIDED INTO SECTORS FOR REGENERATIVE CATALYTIC UNITS - The present invention describes a combustion zone for a regenerative catalytic unit for the continuous regeneration of catalyst, said combustion zone having an annular shape and being divided into at least two combustion stages, each stage being divided into a number N of radial sectors, which are substantially equal, the catalyst flowing under gravity from one sector of the first combustion stage to the sector located in vertical alignment with the second combustion stage by means of drop legs, and the movement of the combustion gas being such that the combustion gas passes in succession through all of the sectors of the first combustion stage in any order, then all of the sectors of the second stage in any order. | 03-21-2013 |
| 502041000 | In gaseous suspension (e.g., fluidized bed, etc.) | 11 |
| 20080214384 | PROCESS FOR REGENERATING A CATALYST - A process for regenerating a catalyst used in the preparation of acrolein from glycerol, which comprises tungsten compounds and has acidic properties and at least one promoter. | 09-04-2008 |
| 20090149315 | PROCESS FOR REGENERATING CATALYST - Disclosed is a process for disengaging regenerated catalyst from flue gas in a catalyst regenerator so as to avoid re-entrainment of catalyst that has settled into a bed in the catalyst regenerator using a disengaging device. A disengaging arm of the disengaging device has an outer shell that encloses the arm, an inner shell with a slot for allowing catalyst and flue gas to exit the arm and an outer baffle having a lower edge located below the opening in the outer wall. The baffle directs the catalyst and flue gas downwardly and limits radial flow. Catalyst and flue gas enter the disengaging arm through an opening in an outer wall of a riser section at a first superficial velocity and exits through a slot in a bottom of the disengaging arm at no more than 1.33 the first superficial velocity. | 06-11-2009 |
| 20100062925 | METHOD OF INHIBITING IN SITU SILICATE FORMATION IN DESULFURIZATION SORBENTS - A method for regenerating desulfurization sorbents that minimizes the in situ formation of one or more silicates. It has been discovered that regenerating sulfur-laden sorbent particles in a carbon oxide-rich environment unexpectedly reduces the in situ silicate formation rate, as compared to similar sorbents regenerated using conventional methods. | 03-11-2010 |
| 20100248942 | CATALYST REGENERATION PROCESS FOR IMPROVING CATALYST SELECTIVITY - The object of the present invention is to provide a catalyst regeneration process which can improve catalyst selectivity. A first aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a first fluidized bed regenerator and contacted with an oxygen-containing gas stream and optional steam to carry out a coke combustion reaction, wherein the resultant mixture of the partially regenerated catalyst and flue gas is introduced into a second fluidized bed regenerator and contacted with steam and an optional oxygen-containing gas stream to carry out a further regeneration reaction, and then the regenerated catalyst is introduced into the reactor. A second aspect of the invention is characterized in that a spent catalyst from a reactor is introduced into a fluidized dense bed regenerator and contacted with an oxygen-containing gas stream and steam to carry out a coke combustion reaction, and then the regenerated catalyst is introduced into the reactor. The inventive processes result in a more uniform distribution of the regenerated catalyst activity; due to the exposure of the catalyst to a low temperature for a long time, a part of the heavy metals are buried by the matrix and the remaining are passivated. Thereby dry gas and coke yields decrease sharply when hydrocarbons are subjected to a catalytic cracking reaction on the regenerated catalyst. | 09-30-2010 |
| 20110257005 | SYSTEM FOR A HEAT BALANCED FCC FORLIGHT HYDROCARBON FEEDS - Catalyst regenerators and methods for using same. The regenerator can include a regenerator housing containing a dense phase catalyst bed for receiving a catalyst to be regenerated. A heater can be disposed in the regenerator and can have a fuel nozzle configured to eject a mixture of fuel and an oxygen-lean gas for combustion to supplement the heat to satisfy the reactor heat demand when a light feedstock cracked that may not provide sufficient coke formation on the catalyst to fully satisfy the reactor heat demand. | 10-20-2011 |
| 20120220449 | PROCESS FOR VENTING A CATALYST COOLER - The process herein provide a catalyst cooler with a vent that communicates fluidizing gas to a lower chamber of a regenerator. Air that is used as fluidizing gas can then be consumed in the regenerator without promoting after burn in the upper chamber. | 08-30-2012 |
| 20130172173 | UPFLOW REGENERATION OF FCC CATALYST FOR MULTI STAGE CRACKING - This invention relates to a process and an apparatus for regeneration of spent FCC catalyst using multiple reactors operation resulting in wide variation of coke on spent catalyst are disclosed. This process uses an up flow regenerator with divided injection of spent catalyst based on their coke content to control the residence time for its efficient regeneration and reduced hydrothermal deactivation. This system has the advantage of minimizing the exposure to the high temperature of low coked catalyst to the minimum possible time and high coke contained catalyst to the required time for its complete regeneration. | 07-04-2013 |
| 20140249022 | REDUCED FLUIDIZATION OF SOLID PARTICLES IN RADIAL FLOW FLUID/SOLID CONTACTING - Apparatuses and methods are disclosed for contacting radially flowing fluids with solid particles (e.g., catalyst) with reduced tendency for fluidization of the particles, and especially a sealing portion of the particles at the top of a particle retention zone disposed between screens at upstream and downstream positions relative to radial fluid flow. Fluidization is reduced or eliminated by offsetting openings of the screens in the axial direction, such that upstream openings in the upstream screen are above highest downstream openings in a downstream stream. The offset in openings imparts a downward flow component to radially flowing fluid, thereby reducing solid particle fluidization without the need to induce a specific pressure drop profile along the entire axial direction of the screens. | 09-04-2014 |
| 502042000 | And substantially complete oxidation of carbon monoxide to carbon dioxide within regeneration zone | 1 |
| 20100099549 | 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 control of the heating of the nitrogen waste stream can be achieved through redirection of a portion of the heat from combustion to generate steam. | 04-22-2010 |
| 502043000 | Plural distinct serial combustion stages | 2 |
| 20090264279 | Three-Stage Counter-Current FCC Regenerator - This invention is directed to a method and apparatus for regenerating a catalyst used in an FCC unit, including providing a spent catalyst into an upper portion of a regenerator, maintaining a calcination phase, a gasification phase, and a combustion phase of fluidized catalyst in the regenerator, combusting carbon in the combustion phase and producing a combustion flue gas, reacting carbon in the gasification phase with the combustion flue gas to form a carbon monoxide rich flue gas, and calcining the spent catalyst with the carbon monoxide rich flue gas. | 10-22-2009 |
| 20100248943 | Integrated Regeneration of Non-Noble Metal Catalysts - Regeneration flue gas streams containing unacceptable levels of CO can be effectively combusted (i.e., for more complete combustion or oxidation of CO to CO | 09-30-2010 |
| 502049000 | Plural distinct oxidation stages | 3 |
| 20100152021 | REFORMER REGENERATION PROCESS - This invention is directed to a process for regenerating a deactivated reforming catalyst by circulating a first oxygen-containing gas stream from a gas compressor to a catalyst bed in a reforming reaction zone in order to remove at least a portion of the carbonaceous deposits on the reforming catalyst. Then, a second oxygen-containing gas stream is further circulated from the gas compressor to the reforming catalyst bed, for oxidizing the reforming catalyst, and an inert gas stream is passed from the gas compressor through the reforming catalyst bed to purge a substantial portion of the oxygen contained therein for a time sufficient to reduce the oxygen content of an exiting purge gas stream to less than about 2% by volume oxygen. | 06-17-2010 |
| 20120322649 | PROCESSES AND APPARATUSES FOR REGENERATING CATALYST PARTICLES - Processes and apparatuses for regenerating catalyst particles are provided. The processes include introducing spent catalyst particles to a burn zone in a continuous catalyst regenerator. When introduced, the catalyst particles, which contain a platinum group metal, carry coke deposits. In the process, a combustion gas at a temperature of at least 490° C. with an oxygen content of at least 0.5 mol % is fed to the burn zone. There, the coke deposits on the catalyst particles are combusted with the combustion gas. The catalyst particles are passed from the burn zone to a halogenation zone in the continuous catalyst regenerator and the catalyst particles are oxyhalogenated to redisperse the platinum group metal to form regenerated catalyst particles. | 12-20-2012 |
| 20150111720 | REGENERATION OF SPENT PARAFFIN DEHYDROGENATION CATALYST - There is provided a method for regenerating a spent dehydrogenation catalyst used in the conversion of n-paraffin to olefin. The method comprises method steps for removing the coke by treating the catalyst with an ozone-oxygen stream followed by an oxygen stream. The catalyst is stabilized by passing a nitrogen stream and the stabilized catalyst is rejuvenated by passing an air-nitrogen stream containing a halogenated hydrocarbon. This is followed by reducing the metal oxide in the catalyst by passing hydrogen-nitrogen stream. | 04-23-2015 |
| 502050000 | Reactive gas treating after oxidation | 2 |
| 20090170689 | Catalyst for Purification of Exhaust Gas, Regeneration Method for the Catalyst, and Apparatus and Method for Purification of Exhaust Gas Using the Catalyst - A catalyst for purification of exhaust gas in which a noble metal is supported on a metal-oxide support wherein, in a oxidation atmosphere, the noble metal exists on the surface of the support in high oxidation state, and the noble metal binds with a cation of the support via an oxygen atom on the surface of the support to form a surface oxide layer and, in a reduction atmosphere, the noble metal exists on the surface of the support in a metal state, and an amount of noble metal exposed at the surface of the support, measured by CO chemisorption, is 10% or more in atomic ratio to a whole amount of the noble metal supported on the support. | 07-02-2009 |
| 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 catalyst at a temperature between 200 and 400° C.; (ii) oxidising the catalyst at a temperature above 580° C. and below 670° C.; and (iii) reducing the catalyst with hydrogen or a hydrogen comprising gas. This process may be preceded by a step in which Fischer-Tropsch product is removed from the catalyst. | 10-01-2009 |
| 502051000 | Oxidation gas comprises essentially steam and oxygen | 2 |
| 20100167911 | Catalyst regeneration - A method is disclosed for regenerating regenerating a used catalyst mixture comprising (i) an isomerization catalyst comprising magnesium oxide and (ii) a metathesis catalyst comprising an inorganic carrier and at least one of molybdenum oxide and tungsten oxide. The method comprises (a) decoking the used catalyst mixture in the presence of an oxygen-containing gas to produce a decoked catalyst mixture; and (b) contacting the decoked catalyst mixture with steam at a temperature in the range of 100 to 300° C. to produce a regenerated catalyst mixture. | 07-01-2010 |
| 20170233277 | NON-SCALING WET AIR OXIDATION SYSTEM AND PROCESS | 08-17-2017 |
| 502052000 | With control of oxygen content in oxidation gas | 1 |
| 20160023194 | METHOD OF TREATMENT FOR A CATALYTIC REACTOR - Process for treating a catalytic reactor comprising a catalyst bed that includes the successive steps of passivating the catalytic reactor leading to the production of an oxidation layer at the surface of the active sites of the catalyst bed, opening the reactor, and skimming at least one portion of the catalyst bed. | 01-28-2016 |
