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| Number | Title | Issue Date |
| 7470644 | Process for combusting coke The invention pertains to a process for combusting coke of a coke-containing FCC catalyst in a regeneration unit of a FCC unit having the introduction of oxygen-containing gas through a gas-transport unit into the regeneration unit and combusting the coke by means o... | 12/30/2008 |
| 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 recovery process comprises removing an organic residue with a washing me... | 05/20/2008 |
| 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 having a first major diameter and into which a regeneration medium an... | 05/08/2007 |
| 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 of a regeneration vessel between lower and higher combustion gas dis... | 04/11/2006 |
| 6267873 | Fluidized catalytic cracking process A fluidized catalytic cracking process for catalytically cracking a feed to lighter products includes introducing a heated catalyst and the feed into a bottom riser of a fluidized catalytic cracking apparatus and allowing the heated catalyst and the feed ... | 07/31/2001 |
| 5914288 | Metal sulfide initiators for metal oxide sorbent regeneration A process of regenerating a sulfided sorbent is provided. According to the process of the invention, a substantial portion of the energy necessary to initiate the regeneration reaction is provided by the combustion of a particulate metal sulfide additive.... | 06/22/1999 |
| 5800697 | FCC process with dual function catalyst cooling An FCC reactor and regenerator arrangement provides substantially independent control of temperature on the reactor side and regenerator side of the process. The arrangement withdraws cooled regenerated catalyst for transfer to a reactor riser and cooled ... | 09/01/1998 |
| 5780563 | Supported lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support havin... | 07/14/1998 |
| 5773379 | Thermal regulation process for a solid in a heat exchanger using cylindrical tube surfaces The invention concerns a process for thermal regulation in a continuous fluidized bed treatment process for a powdered solid, wherein the solid is treated in a fluidized bed treatment zone, at least a portion of the solid is extracted from said zone and t... | 06/30/1998 |
| 5719093 | Method and apparatus for desorbing teda and methyl iodine from used teda-impregnated active carbon by utilizing fluidized bed A method and an apparatus are disclosed for desorbing TEDA by utilizing a fluidized bed so as to reuse a used impregnated active carbon for the purpose of removing toxic materials from a fluid. The impregnated active carbon is injected into a fluidized be... | 02/17/1998 |
| 5691262 | Regeneration of catalysts used in oxidative dehydrogenation of alkylaromatics and paraffins A regenerative process for the preparation of olefinically unsaturated compounds by oxidation/dehydrogenation of selectively oxidizable hydrocarbons over an oxygen carrier acting as catalyst, in the absence of molecular oxygen, alternating (in repeated cy... | 11/25/1997 |
| 5607890 | Supported Lewis acid catalysts derived from superacids useful for hydrocarbon conversion reactions A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support havin... | 03/04/1997 |
| 5571482 | Apparatus for controlling catalyst temperature during regeneration A catalyst cooler apparatus and process for use with a two-stage regeneration system in a fluidized catalytic cracking process having a device to remove hot catalyst from the second regeneration zone at a point above the air distribution ring under the su... | 11/05/1996 |
| 5527750 | Catalyst regeneration procedure for sulfur-sensitive catalysts A method of regenerating a sulfur-sensitive hydrocarbon conversion catalyst by employing sulfur-contaminated heat-transfer equipment of a hydrocarbon conversion process is disclosed. This method is useful for the regeneration of reforming catalysts compri... | 06/18/1996 |
| 5462717 | Processes using fluidized solids and apparatus for carrying out such processes Apparatus and processes are disclosed for carrying out chemical reactions of the type in which a fluidized particulate solid is contacted with reactants in a reaction vessel or conduit and then separated from the reactant products and regenerated in a reg... | 10/31/1995 |
| 5452757 | Pulse pumped catalyst heat exchanger A method of heating or cooling particulate material by indirect heat exchange of the particles with a heat exchange fluid in a heat exchanger is improved by the use of a gas vent that operates to pump catalyst into and out of a heat exchanger. A periodic ... | 09/26/1995 |
| 5449497 | Plug flow vented riser An FCC reactor achieves greater utilization of the space within the reactor vessel by using a vented riser arrangement having an inlet opening at the bottom of a vented riser collector. The inlet opening at the bottom of the vented riser collector allows ... | 09/12/1995 |
| 5409872 | FCC process and apparatus for cooling FCC catalyst during regeneration A process and apparatus for fluidized catalytic cracking (FCC) with cooling of FCC catalyst during regeneration in a baffled heat exchanger attached to the regenerator. The heat exchanger has a vertical baffle defining an inlet and an outlet side. Lift ga... | 04/25/1995 |
| 5365006 | Process and apparatus for dehydrogenating alkanes An alkane-containing feedstream is passed through one or more tubes, which may contain alkane-dehydrogenation catalyst, immersed in a bed of fluidized particles. The bed is at an elevated temperature which maintains the temperature within the tube(s) at a... | 11/15/1994 |
| 5351749 | Process for cooling fluid solid particles An arrangement of apparatus and process thereof for cooling hot fluid solid particles, especially hot regenerated catalytic particles are disclosed. The apparatus comprises a substantially vertical, cylindrical and close ended heat removal vessel through ... | 10/04/1994 |
| 5343939 | Offset FCC coolers with improved catalyst circulation A method of heating or cooling particulate material by indirect heat exchange of the particles with the heat exchange fluid in a heat exchanger located outside and offset from the vessel that supplies the particulate material and to which the particulate ... | 09/06/1994 |
| 5286690 | Method of heat exchange of solid particles for regeneration in catalytic cracking The invention relates to a method of and an apparatus for fluidised bed regeneration of a catalyst containing coke. The catalyst and some of the regeneration fumes are drawn off from the dense bed of a regenerator (1) and are introduced by gravity into an ... | 02/15/1994 |
| 5273107 | Pumped catalyst heat exchanger A method of heating or cooling particulate material by indirect heat exchange of the particles with a heat exchange fluid in a heat exchanger is improved by the use of a gas vent that operates to pump catalyst into and out of a heat exchanger through a si... | 12/28/1993 |
| 5248408 | Catalytic cracking process and apparatus with refluxed spent catalyst stripper A fluidized catalytic cracking process and apparatus operates with a single or multi- stage refluxed catalyst stripper. Recycle, or reflux, of stripped catalyst to the stripping zone improves stripping. Preferably, a two stage hot stripper is used. Additi... | 09/28/1993 |
| 5242012 | Apparatus and process for cooling fluid solid particles An arrangement of apparatus and process thereof for cooling hot fluid solid particles, especially hot regenerated catalytic particles are disclosed. The apparatus comprises a substantially vertical, cylindrical and close ended heat removal vessel through ... | 09/07/1993 |
| 5212129 | Inverted backmix coolers for FCC units The provision and operation of backmix coolers is facilitated by a cooler arrangement that has the backmix portion of the cooler in an inverted position. In this position the heat exchange portion of the cooler is located above the source of hot catalyst.... | 05/18/1993 |
| 5209287 | FCC catalyst cooler A catalyst cooler arrangement for an FCC regenerator improves the operation of the cooler by the use of a full or partial screen arrangement at the cooler outlet of the regenerator to remove material that interferes with the operation of the cooler and es... | 05/11/1993 |
| 5160426 | Process and apparatus for indirect heating of catalyst stripper above a bubbling bed catalyst regenerator A process and apparatus for achieving hot catalyst stripping of spent FCC catalyst in a stripper mounted over a bubbling bed regenerator. Hot catalyst stripping is achieved by indirect transfer of heat from the regenerator to the stripper. Heat pipes, sur... | 11/03/1992 |
| 5158919 | Catalyst regeneration in a single stage regenerator converted to a two stage high efficiency regenerator A process and apparatus for fluidized bed catalyst regeneration. A mixture of spent catalyst, recycled hot regenerated catalyst and regeneration gas are charged to a riser having an outlet connective with a coke combustor immersed in a fluidized bed of ca... | 10/27/1992 |
| 5143874 | Catalyst regenetation in high efficiency regenerator heated by indirect heat exchange A process and apparatus for high efficiency regeneration of spent FCC catalyst in an existing, single dense bed FCC regenerator is disclosed. Spent catalyst is added to a coke combustor immersed within the existing regenerator vessel catalyst bed. A dilut... | 09/01/1992 |
| 5128292 | Side mounted coolers with improved backmix cooling in FCC regeneration The duty of a side-mounted, backmix type catalyst cooling zone is increasd by having one conduit that delivers catalyst to the top of the cooling zone and another conduit that uses fluidizing gas to vent catalyst from the top of the cooling zone back to a... | 07/07/1992 |
| 5120691 | Process for regulating or checking the thermal level of a pulverulent solid incorporating a heat exchanger with fluidized bed compartments A process and apparatus for the heat regulation of fluidized or fluid catalyst beds are described, the apparatus having a fluid bed heat exchanger. According to the invention, a pulverulent solid is made to flow essentially from the base of an enclosure (... | 06/09/1992 |
| 5110775 | Two stage combustion process for cracking catalyst regeneration A two-stage process and apparatus for the regeneration of fluidized catalytic cracking (FCC) catalyst is disclosed. A primary regenerator, a single dense bed with a spent catalyst inlet, a source of oxygen-containing gas, a flue gas outlet and a regenerat... | 05/05/1992 |
| 5066627 | Process for simultaneous heating and cooling a fast fluidized bed catalyst regenerator A process for simultaneously heating and cooling of spent FCC catalyst during regeneration in a high efficiency FCC regenerator, one using a fast fluidized bed coke combustor. The coke combustor burns coke from spent catalyst in a turbulent or fast fluidi... | 11/19/1991 |
| 5043517 | Upgrading light olefin fuel gas in a fluidized bed catalyst reactor and regeneration of the catalyst Process for the continuous conversion of light olefin gas feed containing ethene, propene and butene to produce heavier hydrocarbons by contacting the light olefin feed in a fluidized bed reaction zone with a medium pore molecular sieve zeolite catalyst u... | 08/27/1991 |
| 5043055 | Process and apparatus for hot catalyst stripping above a bubbling bed catalyst regenerator A process and apparatus for achieving multistage, hot catalyst stripping of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped catalyst standpipe within the regenerator. Hot catalyst stripping is... | 08/27/1991 |
| 5034115 | Process and apparatus for fast fluidized bed regeneration of catalyst in a bubbling bed catalyst regenerator A process and apparatus are disclosed for achieving turbulent or fast fluidized bed regeneration of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped catalyst standpipe within the regenerator. A... | 07/23/1991 |
| 5032252 | Process and apparatus for hot catalyst stripping in a bubbling bed catalyst regenerator A process and apparatus for achieving multistage, hot catalyst stripping of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped catalyst standpipe within the regenerator. A secondary or hot cataly... | 07/16/1991 |
| 5032251 | Process and apparatus for fast fluidized bed regeneration of catalyst in a bubbling bed catalyst regenerator A process and apparatus for achieving turbulent or fast fluidized bed regeneration of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped catalyst standpipe within the regenerator. A closed coke c... | 07/16/1991 |
| 5027893 | Heat exchanger with backmix and flow-through particle cooling A method and apparatus for cooling hot FCC catalyst particles in a heat exchange zone that is separate and distinct from the regenerator having an upper portion that operates in a flow-through mode and a lower part that operates in a back mix mode. Cataly... | 07/02/1991 |
