Class 208/176 - Solids moving processes

Subclass of Class 208 - Mineral oils: processes and products
Definition: Processes which include the step of imparting motion of
No. of patents: 38
Last issue date: 10/21/2008

Number	Title	Issue Date
7438863	Multi-catalyst injection system The invention is a multi-catalyst injection system. In one embodiment, the system comprises a plurality of catalyst storage regions associated with a vessel and a metering device associated with the vessel. The metering device is configured to provide a metric indic...	10/21/2008
7399450	Cyclone layer reactor A fluidized-bed reactor is disclosed. The fluidized-bed reactor steadies the gas flow through the fluidized bed chamber of the reactor. The swirl chamber of the reactor consists of a conical housing in which a conical insert is also situated. This creates an annular...	07/15/2008
7368052	Process for discharging and transferring fluidized particles A process is disclosed for discharging and transferring upwardly fluidized particles from a dense fluidizing layer forming section to a high-velocity transferring section having a diameter which is smaller than that of the dense fluidizing fluidized layer forming se...	05/06/2008
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 The sulfur-loaded sorbent particulates are continuously withdrawn from the reactor and transferred to a regenerator. A novel solids tran...	02/06/2007
7150860	Process and apparatus for quick feed contacting with immediate vapor disengagement An apparatus and process in which a catalyst nozzle and a feed nozzle are joined together at a joint in a reactor vessel that contains a disengaging transport conduit in communication with a separator. An inlet to the transport conduit is disposed vertically higher ...	12/19/2006
7141711	Catalyst fines handling process The present invention is a process for removing catalyst fines from a reactor effluent stream that has catalyst fines therein. The process comprises withdrawing the reactor effluent stream from the reactor. The reactor effluent stream is transported in a first condu...	11/28/2006
7135151	Apparatus for feed contacting with immediate catalyst separation A particular arrangement of an FCC unit creates an immediate and sustained gravity separation of catalyst and hydrocarbon vapors in short contact time cracking operation. A transverse feed contactor ejects the mixture of catalyst and hydrocarbon vapors transversely ...	11/14/2006
6280609	Process and apparatus for controlling reaction temperatures A process and apparatus for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium performs heat exchange in a first reaction zone and moves catalyst, at least intermittently, through the sec...	08/28/2001
6010620	Distribution apparatus and method for short time contact of hydrocarbon compounds with particles An arrangement for the controlled production of an essentially linear array of hydrocarbon feed injection jets maintains stable and reliable jets by passing individual piping for each jet through a support shroud that is located in a contacting vessel. Co...	01/04/2000
5858210	Method for regulating particle transfer rates A controlled method of changing the transport rate of particles between a source zone and a destination zone is disclosed. Changes are made in a desired value of the pressure difference of the conduit between the two zones through which the particles are ...	01/12/1999
5840176	Replacement of particles in a moving bed process A method for replacing particles in a process that transfers particles is disclosed. This invention employs a seal zone which is in communication with two zones of the process and in which particles that are being added to the process are purged. This inv...	11/24/1998
5820747	Steam cracking process and facility comprising injection of powder which is collected at a single point A steam cracking process and facility is described which comprises injection of erosive powder to effect at least partial decoking of transfer line exchangers without interrupting the steam cracking stream. The powder, preferably injected just upstream of...	10/13/1998
5716516	Pneumatic particulate transport with gravity assisted flow A system for transporting particulate material uses a combination of non-mechanical valves and pneumatic and gravity transport to reduce breakage of particulate material. This system is particularly useful for the conveyance of catalyst particles where a ...	02/10/1998
5614083	Riser disengager with suspended catalyst separation zone This FCC process suspends a layer of catalyst in a riser proximate or above the riser outlets. The density at the riser outlets is higher than the flowing density in the riser. The suspended catalyst provides a disengagement zone that enhances the separat...	03/25/1997
5589057	Method for extending the life of hydroprocessing catalyst This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of a reactor vessel by introducing the fluids as alternate an...	12/31/1996
5549815	Method for fluidizing a dense phase bed of solids Disclosed is a method for fluidizing a dense phase bed of solid particles, preferably a method for fluidizing a dense phase bed of solid catalyst particles. The method includes the steps of continuously supplying a flowing fluid stream in a downward direc...	08/27/1996
5545312	Replacement of particles in a moving bed process A method and apparatus for replacing particles in a process that transfers particles is disclosed. This invention employs a seal zone which is in communication with two zones of the process and in which particles that are being added to the process are pu...	08/13/1996
5512166	Process and apparatus for the continuous replacement of the catalyst in a moving-bed unit A process for the simultaneous replacement of a first catalyst by a second catalyst which first catalyst is circulating as a moving bed of solid particles in a hydrocarbon treating unit, which unit comprises at least one processing reactor. The first cata...	04/30/1996
5500110	Method for changing particulate transport rates between zones A controlled method of changing the transport rate of particles between two zones is disclosed. Changes are made in a computed value of the pressure difference of the conduit between the two zones through which the particles are transported. The changes a...	03/19/1996
5348644	Process and apparatus for contacting a hydrocarbon feedstock with hot solid particles in a tubular reactor with a rising fluidized bed In a fluidized catalytic cracking (FLC) type unit for contacting of a hydrocarbon feedstock with hot solid particles in a fluidized bed in an upright tubular-type upflow hydrocarbon conversion reactor, there is provided, between the means for fluidization...	09/20/1994
5290430	Riser disengager with suspended catalyst separation zone This FCC process suspends a catalyst and a riser proximate or above the riser cyclone inlets at a density that is higher than the flowing density in the riser. The suspended catalyst provides a disengagement zone that enhances the separation of catalyst f...	03/01/1994
5246568	Catalytic dewaxing process A process for making a lubricant oil of low pour point and improved oxidation stability by catalytically hydro-dewaxing a lube chargestock containing paraffin wax in a vertical column reactor having a cascade series of fixed downflow catalyst beds over de...	09/21/1993
5188725	Fluidized catalyst process for production and etherification of olefins An improvement in iso-olefin etherification is obtained in an integrated process combining a fluidized catalytic cracking reaction and a fluidized catalyst etherification reaction wherein zeolite catalyst particles are withdrawn in partially deactivated f...	02/23/1993
5021147	Solid addition and withdrawal A system for adding and withdrawing solids to a high pressure reactor wherein there is provided improved control of flow and concentrations of a slurry of solids in a transport oil for introducing and withdrawing solids from the reactor. In addition, ther...	06/04/1991
4985136	Ultra-short contact time fluidized catalytic cracking process A fluid catalytic cracking process wherein a hydrocarbon charge-stock is atomized and injected, in a contactor/reactor, into a vertical curtain of hot regenerated catalyst to vaporize and crack hydrocarbons in the charge-stock, wherein the catalyst prefer...	01/15/1991
4952306	Slurry hydroprocessing process A novel slurry hydrotreating process is described which employs a hydrotreating catalyst of small particle size having a quantity of catalyst sites in excess of those required for reaction and/or adsorption of nitrogen compounds in the petroleum or synfue...	08/28/1990
4923591	Continuous lubricating oil dewaxing process Process for the continuous catalytic dewaxing of lube containing feeds wherein the feed effectively moves countercurrently to the catalyst. The process is based on the discovery that in a two-stage catalytic dewaxing process the stage-two or back-end dewa...	05/08/1990
4875995	Solid addition and withdrawal A system for adding and withdrawing solids to a high pressure reactor wherein there is provided improved control of flow and concentrations of a slurry of solids in a transport oil for introducing and withdrawing solids from the reactor. In addition, ther...	10/24/1989
4872969	Method for valveless control of particle transport A method and apparatus are provided for controlling the transfer of particles between zones of different pressure using particle collection and particle transfer conduits. The solids are moved from a low pressure zone to a high pressure zone by means of a...	10/10/1989
4859315	Liquid-solid separation process and apparatus A continuous fluidized process for upgrading a heavy liquid hydrocarbon charge-stock containing solid or solid-forming contaminants, e.g., inorganic solids, metals and asphaltenes. The charge is atomized to provide a stream of liquid particles introduced ...	08/22/1989
4824557	Process for mixing cracking catalyst with a fluid hydrocarbon The present invention relates to a process for immediately and intimately mixing a fluidizable cracking catalyst with a fluid hydrocarbon in a riser reactor. The process involves passing the hydrocarbon through a stationary fluid feedstock feed means in f...	04/25/1989
4769127	Computerized monorail catalyst handling process and system for resid hydrotreating units An improved catalyst handling process and system is provided to safely, effectively, and automatically transport catalyst by remote control to and from resid hydrotreating units. The process and equipment feature computerized monorail equipment for effici...	09/06/1988
4744887	Solid addition and withdrawal A system for adding and withdrawing solids to a high pressure reactor wherein there is provided improved control of flow and concentrations of a slurry of solids in a transport oil for introducing and withdrawing solids from the reactor. In addition, ther...	05/17/1988
4738769	Process for converting liquid or semi-liquid hydrocarbon charges to lighter fractions A process for converting liquid or semi-liquid hydrocarbon charges to lighter fractions comprises a first step (a) heating droplets jets of the charge introduced into a pyrolysis chamber by surrounding them with parallel jets of hot solid particles, of re...	04/19/1988
4621069	Continuous process for catalyst regeneration by staged burnoff of carbon and sulfur compounds Used catalyst containing carbon and sulfur deposits is continuously regenerated by staged burnoff of the carbon and sulfur using a multiple zone treatment vessel containing thin beds of catalyst. The catalyst is exposed to successively increased temperatu...	11/04/1986
4532026	Method to improve circulation control in fluidized systems A method for improving fluidization of a particulate material flowing through a fluid conductor is provided by controlling the rate of addition of fluid, such as aerating gas or steam at a plurality of spaced apart locations along the conduit. The composi...	07/30/1985
4334959	Mixing method and apparatus Method of mixing particulate materials comprising contacting a primary source and a secondary source thereof whereby resulting mixture ensues; preferably at least one of the two sources has enough motion to insure good mixing and the particulate materials...	06/15/1982
4180455	Process for thermal cracking a heavy hydrocarbon There is provided an apparatus comprising rotating inner and outer concentric tubes. The inner tube provides a vapor zone and the annular space between the tubes provides a combustion zone. Hot particulate solids, such as sand, are advanced along an endle...	12/25/1979

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Class 208/176 - Solids moving processes