Patent application number | Description | Published |
20080279735 | System for Catalytically Converting Oxygenates and Regenerating and Stripping Catalyst - A system of converting oxygenate-containing feedstock to light olefins comprises charging a reactor with catalyst, feeding the feedstock into the reactor, contacting the feedstock with the catalyst and converting the feedstock to olefins while depositing byproducts on catalyst resulting in spent catalyst, regenerating the spent catalyst by combustion gases, and stripping the regenerated catalyst of gases entrained in the regenerating step. The stripping step is accomplished using nitrogen gas to strip the entrained gases from the regenerate catalyst. In one embodiment, regenerated catalyst is passed through a regenerated catalyst stripper before it is returned to the reactor. | 11-13-2008 |
20090030251 | Use of Olefin Cracking to Produce Alkylate - A process for producing a feedstock for gasolines having very little aromatic concentrations is disclosed. The present process uses by-product olefins and alkanes to produce an alkylate for use in gasoline blending. | 01-29-2009 |
20090030252 | Integration of Olefin Cracking with Metathesis to Increase Light Olefins Production - A process for increasing the propylene yields for hydrocarbon cracking processes. The process includes adding using alkylation of the C4s coming from the hydrocarbon cracker, and passing larger olefins to an olefin cracking unit. | 01-29-2009 |
20100034718 | Moving Bed Catalyst Regeneration Apparatus with Integral CO Oxidation Zone and Method of Use to Accelerate Coke Burning - A combination of moving bed regeneration technology and CO oxidation technology is used in a novel moving bed regeneration apparatus containing an integral CO oxidation zone to solve the problem of regenerating a coke-containing catalyst that does not contain a CO oxidation promoter without generating an effluent flue gas stream containing hazardous and undesired amounts of CO. The CO oxidation zone is located in the flue gas collection zone within the moving bed regeneration apparatus and functions autogenously to eliminate the CO hazard by oxidizing CO to CO | 02-11-2010 |
20100055008 | SCREENLESS INTERNALS FOR RADIAL FLOW REACTORS - An apparatus for contacting a bed of particulate material with a cross flowing fluid, which maintains the bed of particulate material within a retention volume. The apparatus includes partitions for retaining particles, with apertures disposed within the partitions. The apertures are covered by louvers that extend above the edges of the apertures to prevent solid particles from spilling through inlet apertures. | 03-04-2010 |
20100152026 | Layered Sphere Catalysts with High Accessibility Indexes - A process and catalyst for use in the selective hydrogenation of acetylene to ethylene is presented. The catalyst comprises a layered structure, wherein the catalyst has an inner core and an outer layer of active material. The catalyst further includes a metal deposited on the outer layer, and the catalyst is formed such that the catalyst has an accessibility index between 3 and 500. | 06-17-2010 |
20100152507 | Process for Using Layered Sphere Catalysts with High Accessibility Indexes - A process and catalyst for use in the selective hydrogenation of acetylene to ethylene is presented. The catalyst comprises a layered structure, wherein the catalyst has an inner core and an outer layer of active material. The catalyst further includes a metal deposited on the outer layer, and the catalyst is formed such that the catalyst has an accessibility index between 3 and 500. | 06-17-2010 |
20100158765 | SCREENLESS INTERNALS FOR RADIAL FLOW REACTORS - An apparatus for contacting a bed of particulate material with a cross flowing fluid, which maintains the bed of particulate material within a retention volume. The apparatus includes partitions for retaining particles, with apertures disposed within the partitions. The apertures are covered by louvers that extend above the edges of the apertures to prevent solid particles from spilling through inlet apertures. | 06-24-2010 |
20100288676 | FLUID DISTRIBUTION IN RADIAL FLOW REACTORS INCLUDING MOVING BED REACTORS - Apparatuses and methods for contacting radially flowing fluids with a solid particulate (e.g., catalyst) with reduced tendency to form fluid jets that impinge on the solid particulate, leading to solid attrition and plugging, are described. Representative particle retention devices for use in these apparatuses and methods have flow channels passing therethrough, from a first surface to an opposing second surface that is adjacent to a particle retention zone. Widths of the flow channels at this opposing second surface will exceed their smallest flow channel widths. | 11-18-2010 |
20110118516 | Use of Olefin Cracking to Produce Alkylate - A process for producing a feedstock for gasolines having very little aromatic concentrations is disclosed. The present process uses by-product olefins and alkanes to produce an alkylate for use in gasoline blending. | 05-19-2011 |
20110143919 | OCP Catalyst With Improved Steam Tolerance - A catalyst is present for use in an olefin cracking process. The catalyst is a zeolite that has been loaded with an alkaline earth metal. The alkaline earth metal loaded catalyst has an increased steaming tolerance and increases the useful life of the catalyst during the cracking process and the regeneration cycle. | 06-16-2011 |
20110230333 | Olefin Cracking Catalyst and Manufacturing Process - A new catalyst and method of preparing the catalyst is presented. The catalyst is a molecular sieve used for cracking olefins, and has improved selectivity to increase propylene yields and to reduce the amount of aromatics and methane produced. The catalyst been ion-exchanged to reduce the alkali composition in the catalyst. | 09-22-2011 |
20120041245 | INTEGRATION OF A METHANOL-TO-OLEFIN REACTION SYSTEM WITH A HYDROCARBON PYROLYSIS SYSTEM - An integrated MTO synthesis and hydrocarbon pyrolysis system is described in which the MTO system and its complementary olefin cracking reactor are combined with a hydrocarbon pyrolysis reactor in a way that facilitates the flexible production of olefins and other petrochemical products, such as butene-1 and MTBE. | 02-16-2012 |
20120157740 | QUENCH TOWER CATALYST RECOVERY - A process and apparatus is presented for the removal of solid particles from a gas stream. The process and apparatus includes adding a second stream of liquid that is sprayed over the openings in trays in a quench tower. The second spray stream provides for a veil of liquid to wash out solid particles from the vapor stream. | 06-21-2012 |
20140058145 | PRODUCTION OF OLEFINS FROM A METHANE CONVERSION PROCESS - Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes the further conversion of the acetylene to a hydrocarbon stream having olefins. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to another hydrocarbon, and in particular olefins. The method according to certain aspects includes controlling the level of contaminants in the hydrocarbon stream. | 02-27-2014 |
20140275645 | PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS - In certain aspects, the present invention relates to methods for increasing the cost efficiency and safety of the hydrogenation of a fluorinated olefin by controlling the reaction conditions and parameters. In further aspects, the hydrogenation reaction is provided in a two stage reaction wherein the reactant amounts, temperature and other parameters are controlled such that the conversion percentage, selectivity, and reaction parameters are all within commercially acceptable levels. | 09-18-2014 |
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 |
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 |