| Patent application number | Description | Published |
|---|
| 20080207973 | Purge Gas Streams to Stagnant Zones within Oxygenate-to-Olefin Reactor - The present invention comprises a process for conversion of oxygenates to olefins comprising contacting within a reactor the oxygenates with a catalyst to produce light olefins and wherein the reactor comprises at least two zones, a first zone wherein gas circulates at a faster rate than a second zone wherein a gas circulates at a slower rate; and inserting a quantity of inert gas into the second zone to increase circulation of any materials located in said second zone. The invention prevents accumulation of undesirable by-products within stagnant zones within the reactor and reduces the amount of coke deposited on catalyst or on surfaces within these zones. | 08-28-2008 |
| 20100074806 | Stripping Apparatus with Multi-Sloped Baffles - An apparatus for stripping gases from catalyst material comprises baffles having a second face that extends toward a downcomer channel between baffles to spread catalyst out on adjacent baffles for better contact with stripping gas. | 03-25-2010 |
| 20100075829 | Stripping Process with Multi-Sloped Baffles - A process for stripping gases from catalyst material in which catalyst travels down baffles at a first acute angle and then at a second acute angle on the same baffle. Traveling down the baffle at the second angle assures the catalyst will cross a downcomer channel and land on an adjacent baffle. | 03-25-2010 |
| 20100147744 | UNIT, SYSTEM AND PROCESS FOR CATALYTIC CRACKING - One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture. | 06-17-2010 |
| 20100150788 | Apparatus for Regenerating Catalyst - Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed. | 06-17-2010 |
| 20100152020 | Process for Regenerating Catalyst - Disclosed is a catalyst distributor and process for spreading catalyst over a regenerator vessel. Nozzles disposed angular to a header of the distributor spread catalyst throughout a full cross section of the catalyst bed. | 06-17-2010 |
| 20100152515 | SYSTEM, APPARATUS, AND PROCESS FOR CRACKING A HYDROCARBON FEED - One exemplary embodiment can be a fluid catalytic cracking system. The fluid catalytic cracking system can include a reaction zone including a riser having a top and a bottom adapted to receive spent catalyst at a first elevation and regenerated catalyst at a second elevation. Typically, the first elevation is lower than the second elevation. Additionally, the fluid catalytic cracking system can include a gas distributor contained near the bottom of the riser in communication with a hydrocarbon feed. | 06-17-2010 |
| 20100243529 | PROCESS FOR CONTACTING HIGH CONTAMINATED FEEDSTOCKS WITH CATALYST IN AN FCC UNIT - An FCC process comprising an enlarged riser section and a distributor in an elevated position and with an opening in its tip away from riser walls may reduce coke build-up along the interior walls of a riser. Catalytic mixing may be improved, which could reduce riser coking by increasing hydrocarbon contact with catalyst before contacting the riser wall. Increasing the distance between the introduction of the hydrocarbon and the riser wall may increase this likelihood for hydrocarbon-catalyst contact. Highly contaminated hydrocarbons cause greater coking than do normal hydrocarbons and this FCC process may be effective in decreasing riser coking on such heavy hydrocarbons. | 09-30-2010 |
| 20110056871 | PROCESS FOR CONTACTING HYDROCARBON FEED AND CATALYST - A process for distributing a deflecting media into an axial center of a riser to push catalyst outwardly toward the feed injectors ensures better contacting between hydrocarbon feed and catalyst. | 03-10-2011 |
| 20110058989 | APPARATUS FOR CONTACTING HYDROCARBON FEED AND CATALYST - An apparatus for distributing a deflecting media into an axial center of a riser to push catalyst outwardly toward the feed injectors ensures better contacting between hydrocarbon feed and catalyst. | 03-10-2011 |
| 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 |
| 20110282124 | PROCESS FOR CRACKING A HYDROCARBON FEED - An embodiment can be a process for catalytically cracking a hydrocarbon feed. The process can include providing the hydrocarbon feed including an effective amount of one or more C4-C6 olefins for producing at least one light olefin to a riser. Typically, at least about 99%, by mole, of the hydrocarbon feed is a gas. | 11-17-2011 |
| 20110297583 | PROCESS FOR FLUID CATALYTIC CRACKING - One exemplary embodiment can be a process for fluid catalytic cracking. The process may include providing a torch oil to a stripping section of a first reaction zone, which in turn can communicate at least a partially spent catalyst to a regeneration zone for providing additional heat duty to the regeneration zone. | 12-08-2011 |
| 20110315602 | RECESSED GAS FEED DISTRIBUTOR PROCESS FOR FCC RISER - An FCC process may include a distributor disposed in a recess in a wall of the riser for distributing gaseous hydrocarbon feed to a riser. The distributor may be shielded from upwardly flowing catalyst by a shield. An array of nozzles from the distributor may extend through openings in the shield. | 12-29-2011 |
| 20110318235 | RECESSED GAS FEED DISTRIBUTOR APPARATUS FOR FCC RISER - An FCC apparatus may include a distributor disposed in a recess in a wall of the riser for distributing gaseous hydrocarbon feed to a riser. The distributor may be shielded from upwardly flowing catalyst by a shield. An array of nozzles from the distributor may extend through openings in the shield. | 12-29-2011 |
| 20120012039 | CHAR-HANDLING PROCESSES IN A PYROLYSIS SYSTEM - Char-handling processes for controlling overall heat balance, ash accumulation, and afterburn in a reheater are provided. Carbonaceous biomass feedstock is pyrolyzed using a heat transfer medium forming pyrolysis products and a spent heat transfer medium. The spent heat transfer medium is separated into segregated char and char-depleted spent heat transfer medium. The char-depleted spent heat transfer medium is introduced into a dense bed of heat transfer medium fluidized by a stream of oxygen-containing regeneration gas. All or a portion of the segregated char is combusted in the dense bed using the stream of oxygen-containing regeneration gas. A portion of the segregated char may be exported out of the pyrolysis system to control the overall heat balance and ash accumulation. | 01-19-2012 |
| 20120082591 | APPARATUS 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 |
| 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 |
| 20120136187 | UNIT, SYSTEM AND PROCESS FOR CATALYTIC CRACKING - One exemplary embodiment can be a fluid catalytic cracking unit. The fluid catalytic cracking unit can include a first riser, a second riser, and a disengagement zone. The first riser can be adapted to receive a first feed terminating at a first reaction vessel having a first volume. The second riser may be adapted to receive a second feed terminating at a second reaction vessel having a second volume. Generally, the first volume is greater than the second volume. What is more, the disengagement zone can be for receiving a first mixture including at least one catalyst and one or more products from the first reaction vessel, and a second mixture including at least one catalyst and one or more products from the second reaction vessel. Typically, the first mixture is isolated from the second mixture. | 05-31-2012 |
| 20120192714 | PROCESS FOR SEPARATING PARTICULATE SOLIDS FROM A GAS STREAM - One exemplary embodiment can be a process for separating particulate solids from a gas stream. The process can include regenerating a catalyst in a regenerator, separating particulate solids in first and second cyclone stages, passing the gas stream from the second cyclone stage to an external third stage separator, and passing the gas stream from the external third stage separator to a cyclone recirculator to obtain a clean gas stream. | 08-02-2012 |
| 20120214113 | HEAT REMOVAL AND RECOVERY IN BIOMASS PYROLYSIS - Pyrolysis methods and apparatuses that allow effective heat removal, for example when necessary to achieve a desired throughput or process a desired type of biomass, are disclosed. According to representative methods, the use of a quench medium (e.g., water), either as a primary or a secondary type of heat removal, allows greater control of process temperatures, particularly in the reheater where char, as a solid byproduct of pyrolysis, is combusted. Quench medium may be distributed to one or more locations within the reheater vessel, such as above and/or within a dense phase bed of fluidized particles of a solid heat carrier (e.g., sand) to better control heat removal. | 08-23-2012 |
| 20120219467 | APPARATUS FOR VENTING A CATALYST COOLER - The apparatus 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 |
| 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 |
| 20120234725 | HYDROCARBON CONVERSION APPARATUS INCLUDING FLUID BED REACTION VESSEL AND RELATED PROCESSES - Embodiments of a hydrocarbon conversion apparatus are provided, as are embodiments of a hydroprocessing conversion process. In one embodiment, the hydrocarbon conversion apparatus includes a reaction vessel having a reaction chamber and a feed distribution chamber. A riser fluidly couples the feed distribution chamber to the reaction chamber, and a catalyst recirculation standpipe fluidly couples the reaction chamber to the feed distribution chamber. The catalyst recirculation standpipe forms a catalyst recirculation circuit with the reaction chamber, the feed distribution chamber, and the riser. A catalyst is circulated through the catalyst recirculation circuit during operation of the hydrocarbon conversion apparatus. | 09-20-2012 |
| 20130062184 | METHODS AND APPARATUSES FOR RAPID THERMAL PROCESSING OF CARBONACEOUS MATERIAL - Embodiments of methods and apparatuses for rapid thermal processing of carbonaceous material are provided herein. The method comprises the step of contacting a carbonaceous feedstock with heated inorganic heat carrier particles at reaction conditions effective to rapidly pyrolyze the carbonaceous feedstock to form a product stream comprising pygas, pyrolysis oil, and solids. The solids comprise char and cooled inorganic heat carrier particles. The reaction conditions include a reactor pressure of about 70 kPa gauge or greater. | 03-14-2013 |
| 20130075072 | APPARATUSES AND METHODS FOR CONTROLLING HEAT FOR RAPID THERMAL PROCESSING OF CARBONACEOUS MATERIAL - Embodiments of apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material are provided herein. The apparatus comprises a reheater for containing a fluidized bubbling bed comprising an oxygen-containing gas, inorganic heat carrier particles, and char and for burning the char into ash to form heated inorganic particles. An inorganic particle cooler is in fluid communication with the reheater to receive a first portion of the heated inorganic particles. The inorganic particle cooler is configured to receive a cooling medium for indirect heat exchange with the first portion of the heated inorganic particles to form first partially-cooled heated inorganic particles that are fluidly communicated to the reheater and combined with a second portion of the heated inorganic particles to form second partially-cooled heated inorganic particles. A reactor is in fluid communication with the reheater to receive the second partially-cooled heated inorganic particles. | 03-28-2013 |
| 20130078581 | APPARATUSES FOR CONTROLLING HEAT FOR RAPID THERMAL PROCESSING OF CARBONACEOUS MATERIAL AND METHODS FOR THE SAME - Embodiments of apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material are provided herein. The apparatus comprises a reactor, a reheater for forming a fluidized bubbling bed comprising an oxygen-containing gas, inorganic heat carrier particles, and char and for burning the char into ash to form heated inorganic particles. An inorganic particle cooler is in fluid communication with the reheater. The inorganic particle cooler comprises a shell portion and a tube portion. The inorganic particle cooler is configured such that the shell portion receives a portion of the heated inorganic particles and the tube portion receives a cooling medium for indirect heat exchange with the portion of the heated inorganic particles to form partially-cooled heated inorganic particles. | 03-28-2013 |
| 20130148463 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 06-13-2013 |
| 20130148464 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 06-13-2013 |
| 20130148465 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 06-13-2013 |
| 20130150233 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 06-13-2013 |
| 20130158326 | DUAL RISER CATALYTIC CRACKER FOR INCREASED LIGHT OLEFIN YIELD - A process for improving the yield of ethylene and propylene from a light naphtha feedstock includes obtaining light naphtha feedstock from a primary cracking zone having a cracking catalyst. The light naphtha feedstock is contacted with an olefin catalyst in an olefin producing zone to produce an ethylene- and propylene-rich stream. After reacting with the olefin catalyst, the ethylene- and propylene-rich stream is separated from the olefin catalyst from in a separator zone. At least a portion of the olefin catalyst is regenerated by combusting coke deposited on a surface of the olefin catalyst in an oxygen-containing environment, and at least a portion of the olefin catalyst is heated. These portions could be the same one or they could be different. In some embodiments, at least a portion of the olefin catalyst could be neither regenerated nor heated. The olefin catalyst is returned to the olefin producing zone. | 06-20-2013 |
| 20130172170 | APPARATUSES FOR STRIPPING GASEOUS HYDROCARBONS FROM PARTICULATE MATERIAL AND PROCESSES FOR THE SAME - Apparatuses and processes are provided for stripping gaseous hydrocarbons from particulate material. One process comprises the step of contacting particles that contain hydrocarbons with a stripping vapor in countercurrent flow to remove at least a portion of the hydrocarbons with the stripping vapor to form stripped particles. Contacting the particles includes advancing the particles down a sloping element of a structured packing toward a reinforcing rod that is disposed adjacent to a lower section of the sloping element. The particles are advanced down through an opening formed in the sloping element proximate the reinforcing rod. The particles are contacted with the stripping vapor that is rising up through the opening. | 07-04-2013 |
| 20130225396 | 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 | 08-29-2013 |
| 20130247559 | PROCESS FOR MODIFYING A FLUID CATALYTIC CRACKING UNIT, AND AN APPARATUS RELATING THERETO - One exemplary embodiment can be a process for modifying a fluid catalytic cracking unit. The process can include adding a carbon monoxide boiler to the fluid catalytic cracking unit to receive a bypassed flue gas stream from a power recovery expander for increasing capacity of the fluid catalytic cracking unit. | 09-26-2013 |
| 20130248420 | PROCESS AND APPARATUS FOR FLUID CATALYTIC CRACKING - One exemplary embodiment can be a process for fluid catalytic cracking. The process can include sending a first catalyst from a first riser reactor and a second catalyst from a second riser reactor to a regeneration vessel having a first stage and a second stage. The first catalyst may be sent to the first stage and the second catalyst may be sent to the second stage of the regeneration vessel. Generally, the first stage is positioned above the second stage. | 09-26-2013 |
| 20130250716 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream around an insert in a lower section of a riser. The insert fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 09-26-2013 |
| 20130250717 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst utilizes a ramp or bend provided on only one of the catalyst conduits to provide mixing advantages. | 09-26-2013 |
| 20130252799 | MTO REGENERATOR MULTI-PASS GRIDS - A process and device for the regeneration of catalyst is presented. The device includes a series of grids within a regeneration vessel, where each grid includes small openings for the passage of gas, and larger openings for the passage of catalyst. The grids span horizontally across the vessel, and are spaced vertically apart to create a flow of catalyst down through the regenerator. | 09-26-2013 |
| 20130252803 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst utilizes a ramp or bend provided on only one of the catalyst conduits to provide mixing advantages. | 09-26-2013 |
| 20130252805 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream around an insert in a lower section of a riser. The insert fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 09-26-2013 |
| 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 |
| 20130263735 | PROCESS FOR SEPARATING PARTICULATE SOLIDS FROM A GAS STREAM - One exemplary embodiment can be a process for separating particulate solids from a gas stream. The process can include regenerating a catalyst in a regenerator, separating particulate solids in first and second cyclone stages, passing the gas stream from the second cyclone stage to an external third stage separator, and passing the gas stream from the external third stage separator to a cyclone recirculator to obtain a clean gas stream. | 10-10-2013 |
| 20130327629 | Char-Handling Processes in a Pyrolysis System - Char-handling processes for controlling overall heat balance, ash accumulation, and afterburn in a reheater are provided. Carbonaceous biomass feedstock is pyrolyzed using a heat transfer medium forming pyrolysis products and a spent heat transfer medium. The spent heat transfer medium is separated into segregated char and char-depleted spent heat transfer medium. The char-depleted spent heat transfer medium is introduced into a dense bed of heat transfer medium fluidized by a stream of oxygen-containing regeneration gas. All or a portion of the segregated char is combusted in the dense bed using the stream of oxygen-containing regeneration gas. A portion of the segregated char may be exported out of the pyrolysis system to control the overall heat balance and ash accumulation. | 12-12-2013 |
| 20140001096 | PROCESS AND APPARATUS FOR DISTRIBUTING HYDROCARBON FEED TO A CATALYST STREAM | 01-02-2014 |
| 20140004018 | PROCESS AND APPARATUS FOR DISTRIBUTING HYDROCARBON FEED TO A CATALYST STREAM | 01-02-2014 |
| 20140034550 | METHODS AND FUEL PROCESSING APPARATUSES FOR UPGRADING A PYROLYSIS OIL STREAM AND A HYDROCARBON STREAM - Methods and apparatuses for upgrading a pyrolysis oil stream and a hydrocarbon stream are provided herein. In an embodiment, a method for upgrading a pyrolysis oil stream and a hydrocarbon stream includes separately introducing the pyrolysis oil stream and the hydrocarbon stream into a reaction zone to form a mixture of the pyrolysis oil stream and the hydrocarbon stream in the reaction zone. The mixture of the pyrolysis oil stream and the hydrocarbon stream is catalytically cracked in the presence of a particulate cracking catalyst in the reaction zone. The pyrolysis oil stream is maintained at a temperature of less than or equal to about 100° C. substantially up to introduction into the reaction zone. | 02-06-2014 |
| 20140034552 | METHODS AND FUEL PROCESSING APPARATUSES FOR UPGRADING A PYROLYSIS OIL STREAM AND A HYDROCARBON STREAM - Methods and fuel processing apparatuses for upgrading a pyrolysis oil stream and a hydrocarbon stream are provided herein. In an embodiment, a method for upgrading a pyrolysis oil stream and a hydrocarbon stream includes providing a pyrolysis oil stream and providing a hydrocarbon stream separate from the pyrolysis oil stream. The pyrolysis oil stream and the hydrocarbon stream are mixed in a mixing zone and in the absence of a particulate cracking catalyst. The pyrolysis oil stream and the hydrocarbon stream are introduced in a substantially common direction into the mixing zone to form a mixture of the pyrolysis oil stream and the hydrocarbon stream. The mixture of the pyrolysis oil stream and the hydrocarbon stream are catalytically cracked in the presence of the particulate cracking catalyst. | 02-06-2014 |
| 20140034554 | METHODS AND FUEL PROCESSING APPARATUSES FOR UPGRADING A PYROLYSIS OIL STREAM AND A HYDROCARBON STREAM - Methods and apparatuses for upgrading a pyrolysis oil stream and a hydrocarbon stream are provided. In an embodiment, a method for upgrading a pyrolysis oil stream and a hydrocarbon stream includes providing the pyrolysis oil stream and providing the hydrocarbon stream separate from the pyrolysis oil stream. The pyrolysis oil stream and the hydrocarbon stream are introduced into a reaction zone. Deposits form adjacent to a pyrolysis oil outlet of the pyrolysis oil stream. The pyrolysis oil stream and the hydrocarbon stream are catalytically cracked in the presence of a particulate cracking catalyst in the reaction zone. During catalytic cracking, the pyrolysis oil deposits adjacent the pyrolysis oil outlet of the pyrolysis oil stream are removed, such as with a cleaning head. | 02-06-2014 |
| 20140140895 | Counter-Current Fluidized Bed Reactor for the Dehydrogenation of Olefins - A process and apparatus for the dehydrogenation of paraffins is presented. The process utilizes a reactor that includes a slower flow of catalyst through the reactor, with a counter current flow of gas through the catalyst bed. The catalyst is regenerated and distributed over the top of the catalyst bed, and travels through the bed with the aid of reactor internals to limit backmixing of the catalyst. | 05-22-2014 |
| 20140142362 | Counter-Current Fluidized Bed Reactor for the Dehydrogenation of Olefins - A process and apparatus for the dehydrogenation of paraffins is presented. The process utilizes a reactor that includes a slower flow of catalyst through the reactor, with a counter current flow of gas through the catalyst bed. The catalyst is regenerated and distributed over the top of the catalyst bed, and travels through the bed with the aid of reactor internals to limit backmixing of the catalyst. | 05-22-2014 |
| 20140174984 | HYDROCARBON CONVERSION APPARATUS INCLUDING FLUID BED REACTION VESSEL AND RELATED PROCESSES - Embodiments of a hydrocarbon conversion apparatus are provided, as are embodiments of a hydroprocessing conversion process. In one embodiment, the hydrocarbon conversion apparatus includes a reaction vessel having a reaction chamber and a feed distribution chamber. A riser fluidly couples the feed distribution chamber to the reaction chamber, and a catalyst recirculation standpipe fluidly couples the reaction chamber to the feed distribution chamber. The catalyst recirculation standpipe forms a catalyst recirculation circuit with the reaction chamber, the feed distribution chamber, and the riser. A catalyst is circulated through the catalyst recirculation circuit during operation of the hydrocarbon conversion apparatus. | 06-26-2014 |
| 20140213428 | PROCESS FOR STRIPPING AND A FLUID CATALYTIC CRACKING APPARATUS RELATING THERETO - One exemplary embodiment can be a process for stripping. The process can include passing catalyst to a stripping vessel containing a riser, providing a plurality of baffles having a first baffle and a second baffle, and providing one or more packing layers. The stripping vessel and riser may define an annular zone including annular area for stripping of the catalyst, and the first and second baffles collectively overlap in no more than about 50% of the annular area. Often, the first baffle is coupled to an outer circumference of the riser and extends outward, and the second baffle is coupled to an inner circumference of the stripping vessel and extends inward. Typically, the one or more packing layers are within the annular zone. | 07-31-2014 |
| 20140294685 | REACTOR MULTI-PASS GRIDS FOR IMPROVED CATALYST HYDRODYNAMICS - A process and device for the flow of catalyst in a reactor is presented. The device includes a series of grids within a reactor vessel, where each grid includes small openings for the passage of gas and some catalyst particles, and larger openings for the more continuous passage of catalyst. The grids span horizontally across the vessel, and are spaced vertically apart to provide for the flow of catalyst down through the reactor | 10-02-2014 |
| 20140294694 | PROCESS FOR TRANSFERRING CATALYST AND AN APPARATUS RELATING THERETO - One exemplary embodiment can be a process for transferring catalyst in a fluid catalytic cracking apparatus. The process can include passing the catalyst through a conveyor wherein the conveyor contains a screw for transporting the catalyst. | 10-02-2014 |
| 20140296603 | REACTOR MULTI-PASS GRIDS FOR IMPROVED CATALYST HYDRODYNAMICS - A process and device for the flow of catalyst in a reactor is presented. The device includes a series of grids within a reactor vessel, where each grid includes small openings for the passage of gas and some catalyst particles, and larger openings for the more continuous passage of catalyst. The grids span horizontally across the vessel, and are spaced vertically apart to provide for the flow of catalyst down through the reactor | 10-02-2014 |
| 20140363343 | Apparatuses and Methods for Controlling Heat for Rapid Thermal Processing of Carbonaceous Material - Embodiments of apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material are provided herein. The apparatus comprises a reheater for containing a fluidized bubbling bed comprising an oxygen-containing gas, inorganic heat carrier particles, and char and for burning the char into ash to form heated inorganic particles. An inorganic particle cooler is in fluid communication with the reheater to receive a first portion of the heated inorganic particles. The inorganic particle cooler is configured to receive a cooling medium for indirect heat exchange with the first portion of the heated inorganic particles to form first partially-cooled heated inorganic particles that are fluidly communicated to the reheater and combined with a second portion of the heated inorganic particles to form second partially-cooled heated inorganic particles. A reactor is in fluid communication with the reheater to receive the second partially-cooled heated inorganic particles. | 12-11-2014 |
| 20140364300 | PROCESS AND APPARATUS FOR FLUID CATALYTIC CRACKING - One exemplary embodiment can be a process for fluid catalytic cracking. The process can include sending a first catalyst from a first riser reactor and a second catalyst from a second riser reactor to a regeneration vessel having a first stage and a second stage. The first catalyst may be sent to the first stage and the second catalyst may be sent to the second stage of the regeneration vessel. Generally, the first stage is positioned above the second stage. | 12-11-2014 |
