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| Number | Title | Issue Date |
| 7414166 | Minimizing catalyst backflow in fluidized bed reactors This invention provides feed introduction devices, and processes for using same, which minimize catalyst clogging. In particular, the invention is to a feed introduction device having a first end in fluid communication with a feed source, a second end in fluid commu... | 08/19/2008 |
| 7407571 | Method of and apparatus for upgrading and gasifying heavy hydrocarbon feeds A novel apparatus for producing sweet synthetic crude from a heavy hydrocarbon feed includes: an upgrader for receiving the heavy hydrocarbon feed and producing a distillate fraction including sour products, and high-carbon content by-products; a gasifier for receiv... | 08/05/2008 |
| 7402719 | Catalytic oxidative dehydrogenation, and microchannel reactors for catalytic oxidative dehydrogenation The invention provides methods of oxidative dehydrogenation (ODH). Conducting ODH in microchannels has unexpectedly been found to yield superior performance when compared to the same reactions at the same conditions in larger reactors. ODH methods employing a Mo—V... | 07/22/2008 |
| 7385099 | Multiple riser reactor with centralized catalyst return The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and opt... | 06/10/2008 |
| 7291685 | Process for producing low polymer of α-olefin There is disclosed a process for producing an α-olefin oligomer by subjecting an α-olefin to oligomerization reaction in the presence of a catalyst and an organic solvent which comprises the step of spraying a solvent containing the organic solvent in the form of ... | 11/06/2007 |
| 7288693 | Pulse flow reaction A method of operating a multi-phase downflow reactor so as to induce a pulsing flow regime is disclosed. The pulse may be induced by increasing the gas rate while maintaining the liquid rate until a pressure drop sufficient to induce the pulse flow is achieved. The ... | 10/30/2007 |
| 7241376 | Method for passing a fluid through a moving bed of particles A process for contacting a bed of particulate material, usually catalyst, with a transverse flow of fluid is disclosed. The particulate material moves or is prevented from not moving, while the fluid passes through the bed at a rate greater than the stagnant bed pin... | 07/10/2007 |
| 7182923 | Reaction chamber that comprises a jacket that contains at least one module that is connected by flexible means to the jacket and that contains heat exchange means A device has a reaction chamber with at least one feed inlet (5) and at least one evacuation outlet (10). An outside jacket (2a) that is resistant to internal pressure is positioned around the device and contains at least one module (4... | 02/27/2007 |
| 7169960 | Dehydrogenation process A process for the dehydrogenation of a C2 or C3 alkyl aromatic compound to a corresponding vinyl aromatic compound in a tubular reactor incorporating a spiral flow path. Preferred embodiments of the invention provide processes for the productio... | 01/30/2007 |
| 7169292 | Pyrolysis tube and pyrolysis method for using the same The present invention provides a pyrolysis tube for enhancing the yield of olefins and reducing a coking tendency in steam cracking of hydrocarbons. According to the present invention, the pyrolysis tube is characterized in that a plurality of mixing blades made by ... | 01/30/2007 |
| 7138558 | Direct return of oxygenate recycle stream in olefin production process The invention is a process and the corresponding apparatus for producing light olefins from oxygenates in an OTO reactor comprising sending an oxygenate feed stream through a feed stream distributor into an OTO reactor, contacting the oxygenates with a catalyst to p... | 11/21/2006 |
| 7102050 | Multiple riser reactor The present invention is directed to a hydrocarbon conversion apparatus. The apparatus comprises the following: a plurality of riser reactors, each of the riser reactors having a first end into which a catalyst can be fed and a second end through which the catalyst ... | 09/05/2006 |
| 7049477 | Process for pyrolysis of hydrocarbon The present invention relates to a process for pyrolysis of hydrocarbons for olefin preparation, and particularly to a process for pyrolysis of hydrocarbons comprising pyrolyzing paraffin hydrocarbons in the presence of steam to prepare olefins, where the pyrolysis ... | 05/23/2006 |
| 6814857 | Method for passing a fluid through a moving bed of particles A process for contacting a bed of particulate material, usually catalyst, with a transverse flow of fluid is disclosed. The particulate material moves or is prevented from not moving, while the fluid passes through the bed at a rate greater than the stagnant bed pin... | 11/09/2004 |
| 6762335 | Apparatus for dehydrogenation of ethylbenzene to styrene The present invention discloses a process and apparatus for improving the catalyst life and efficiency in a gas flow catalyst bed reactor assembly. The reactor comprises an outer reaction vessel, an inner displacement cylinder, and an annular catalyst bed surroundin... | 07/13/2004 |
| 6702936 | Method of and apparatus for upgrading and gasifying heavy hydrocarbon feeds A novel apparatus for producing sweet synthetic crude from a heavy hydrocarbon feed comprising: an upgrader for receiving said heavy hydrocarbon feed and producing a distillate fraction including sour products, and high-carbon content by-products; a gasif... | 03/09/2004 |
| 6657097 | Fluidized bed reactor Disclosed is a fluidized bed reactor wherein the average cross-sectional area occupied by a cooling coil, a dummy pipe and/or a cyclone leg is 10% or more of the average cross-sectional area of said reactor in a dense-phase fluidized catalyst bed region. ... | 12/02/2003 |
| 6623621 | Control of flooding in a countercurrent flow reactor by use of temperature of liquid product stream A process for upgrading a liquid petroleum or chemical stream wherein said stream flows countercurrent to the flow of a treat gas, such as a hydrogen-containing gas, in at least one reaction zone. The temperature of at least a portion of the liquid stream... | 09/23/2003 |
| 6486374 | Method and apparatus for alkylation using solid catalyst particles in a transport reactor A method and apparatus for alkylating an alkylation substrate with an alkylating agent in the presence of solid catalyst particles in a transport reactor is disclosed. Solid catalyst particles in the transport reactor effluent recirculate to the inlet of ... | 11/26/2002 |
| 6486371 | Multistage reaction system with interstage sparger systems Vapor phase alkylation of an aromatic substrate in a multi-stage alkylation reaction zone having a plurality of series-connected catalyst beds providing mixing zones between adjacent catalyst beds. An aromatic substrate and a C2 -C4 ... | 11/26/2002 |
| 6485631 | Process for thermal, and optionally catalytic, upgrading and hydrogenation of hydrocarbons A process for thermal and, optionally, catalytic upgrading and hydrogenation of hydrocarbons is described, wherein the hydrocarbons (oil) with a lower API grade is passed through one or more reactors connected in parallell or in series, preferably in seri... | 11/26/2002 |
| 6420621 | Optimized process for the preparation of olefins by direct conversion of multiple hydrocarbons A process for hydrocarbon conversion to prepare lower olefins such as ethylene, propylene, etc., and light aromatics by bringing hydrocarbons into contact with a solid granular catalyst. In order to optimize the reaction conditions and product structure a... | 07/16/2002 |
| 6380449 | Dehydrogenation process Process for the catalytic dehydrogenation of ethylbenzene in which a feedstock containing ethylbenzene and steam is supplied into the inlet of a tubular reactor containing a dehydrogehation catalyst. Within the reactor, the feedstock flows through at leas... | 04/30/2002 |
| 6294707 | Fluidized bed reactor and process for producing 5-ethylidene-2-norbornene The present invention is directed to a continuous process for producing a desired hydrocarbon product using a heterogeneous slurry catalyst, to the product of said process, and to the reactor utilized in such process.... | 09/25/2001 |
| 6284939 | Process for liquid-phase conversion with a moving-bed catalyst using a stripper-lift This invention pertains to a continuous catalytic process, for example, for the metathesis of olefins that uses a catalyst circulating in a moving bed in at least one reaction zone operating in the liquid phase and in a regenerator, with a lift to transfe... | 09/04/2001 |
| 6274003 | Apparatus for upgrading hydrocarbon feeds containing sulfur, metals, and asphaltenes Upgrading of a hydrocarbon feed containing sulfur, metals, and asphaltenes involves applying the feed to a distillation column for producing a substantially asphaltene-free, and metal-free fraction and a non-distilled fraction containing sulfur, asphalten... | 08/14/2001 |
| 6271431 | Process for thermal pyrolysis of a feedstock that contains ethane A process for thermal pyrolysis of a feedstock containing at least 80% ethane to convert to ethylene at a conversion rate of at least equal 80% by feeding the feedstock into a reaction zone in which heating means are arranged approximately perpendicular t... | 08/07/2001 |
| 6190536 | Catalytic cracking process Processes and apparatus for providing improved catalytic cracking, specifically improved recovery of olefins, LPG or hydrogen from catalytic crackers. The improvement is achieved by passing part of the wet gas stream across membranes selective in favor of... | 02/20/2001 |
| 6191332 | Method and apparatus for dehydrogenating aliphatic hydrocarbons to olefinic hydrocarbons The specification describes a method and a fixed bed apparatus for producing olefinic hydrocarbons from a charge of saturated aliphatic hydrocarbons with 2 to 20 carbon atoms and hydrogen in a chamber 1 comprising a plurality of parallel tubes 3 filled wi... | 02/20/2001 |
| 6180846 | Process and apparatus using plate arrangement for combustive reactant heating A process and apparatus for indirectly heating an endothermic reaction by combustion of reactants or products from the endothermic reaction using a plate heat exchange arrangement in a highly efficient manner. This invention is particularly suited for pro... | 01/30/2001 |
| 6159358 | Process and apparatus using plate arrangement for reactant heating and preheating A process and apparatus produces reaction products by indirectly preheating and heating reactants by indirect heat exchange. The use of the preheating step simplifies the reaction zone design by eliminating the need for external exchangers and is particul... | 12/12/2000 |
| 6143943 | Process using plate exchanger with high thermal density heat transfer fluid and simultaneous reaction A channel reactor arrangement and a process uses a heat exchange fluid with a high thermal density to indirectly heat or cool the reactants by indirect heat exchange. The system brings the efficiency of plate reactor arrangements to the effectiveness of h... | 11/07/2000 |
| 6099922 | Thermally insulated metal surface protected against metal dusting corrosion The metal surface protected against metal-dusting corrosion has an insulating layer of a gas-permeable, thermally insulating material. The side of the thermal insulating layer that is colder during operation is in direct vicinity of the metal surface, and... | 08/08/2000 |
| 6083380 | Fluid coalescing method and apparatus A method to condense or coalesce matter is carried out by providing a suitable, narrow passageway for throughput of matter in a vapor state, and passing the matter in a vapor state through said passageway, under conditions such that the matter is coalesce... | 07/04/2000 |
| 6068760 | Catalyst/wax separation device for slurry Fischer-Tropsch reactor Catalyst particles are separated from the wax in a Fischer-Tropsch reactor by feeding a portion of the reactor slurry to a dynamic settler which does not require any pump. As the slurry flows down a pipe in the center of the settler, the slurry flows into... | 05/30/2000 |
| 5958220 | Gas-pocket distributor and method for hydroprocessing a hydrocarbon feed stream A distributor assembly for hydroprocessing a hydrocarbon mixture of hydrogen-containing gas and liquid hydrocarbon is presented. The distributor assembly has a circular plate with a plurality of hollow risers bound thereto for distributing hydrogen-contai... | 09/28/1999 |
| 5935413 | Interbed gas-liquid mixing system for cocurrent downflow reactors An apparatus for mixing vapor and liquid reactants within a column. The apparatus forms a first mixing zone into which a first reactant (e.g., vapor) is homogenized by swirl flow and flows vertically downward. The apparatus further forms a second mixing z... | 08/10/1999 |
| 5885442 | Process for producing petrol of high octane number by catalytic reforming and a reactor for carrying out this process The invention relates to a process for producing petrol of high octane number by catalytic reforming of hydrocarbons by passing these hydrocarbons through a platinum/rhenium catalyst arranged in the form of a hollow cylinder at 450°-500° C. and a pressu... | 03/23/1999 |
| 5824834 | Process for the production of acetylene and synthesis gas The invention relates to a process for the production of acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, wherein the gaseous reactants are separately preheated, intimately mixed in a mixing zone, reacted after passing a burne... | 10/20/1998 |
| 5789640 | Aromatic hydrocarbons alkylation and liquid-solid circulating fluidized bed for alkylation Disclosed is a process for continuous alkylation of aromatics or their derivatives in the presence of a solid acid catalyst in a liquid-solid circulating fluidized bed system, said system comprising a liquid-solid cocurrent upflow reactor, a sedimentation... | 08/04/1998 |
