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| Number | Title | Issue Date |
| 8158839 | Alkylation process using catalysts with low olefin skeletal isomerization activity A process is presented for the production of linear alkylbenzenes. The process includes contacting an aromatic compound with an olefin in the presence of a selective zeolite catalyst. The catalyst includes two zeolites combined to improve the linearity, and to produ... | 04/17/2012 |
| 8071047 | Centerpipe design for radial flow reactor A device is presented for use as a centerpipe in a radial flow reactor, or for a radial flow adsorption bed. The device includes a plurality of stacked slotted cylindrical sections and frustums. The design retains the particles in a solid particulate bed that can be... | 12/06/2011 |
| 8053620 | Guard bed for removing contaminants from feedstock to a normal paraffin extraction unit Processes and systems for removing contaminants from a paraffin containing feedstock are provided that include: providing a paraffin containing feedstock, passing the paraffin containing feedstock to an inlet of a guard bed that includes an adsorbent material, and c... | 11/08/2011 |
| 8044254 | Process for enhanced olefin production A processing scheme and arrangement for enhanced olefin production involves cooling or treating an olefin cracking reactor effluent stream by contacting the olefin cracking reactor effluent stream with a quench oil stream in a single contact cooler contact zone to p... | 10/25/2011 |
| 7960601 | Heavy paraffin adsorption separation process A process is presented for the selective separation and recovery of large normal paraffins from a heavy kerosene boiling point fraction. The process includes passing the heavy kerosene fraction through an adsorption separation system for separating the normal paraff... | 06/14/2011 |
| 7951341 | Reactor design for smaller batch transfers of catalyst A moving bed of catalyst loses activity as it moves through the reactor. Creating multiple passes for the process fluid moving across a catalyst bed, increases the utilization of the catalyst and creates a pseudo-counter current flow of catalyst and process fluid. T... | 05/31/2011 |
| 7902416 | Fluidized bed reactor with back-mixing for dehydrogenation of light paraffins An improved process and system for the endothermic dehydrogenation of an alkane stream is described. The process and system of the present invention comprise a back-mixed fluidized bed reactor. The alkane stream is dehydrogenated in a single reactor stage by contact... | 03/08/2011 |
| 7834227 | Aromatics co-production in a methanol-to-propylene unit The present invention provides a reactor system having: (1) a first reactor receiving an oxygenate component and a hydrocarbon component and capable of converting the oxygenate component into a light olefin and the hydrocarbon component into alkyl aromatic compounds... | 11/16/2010 |
| 7803977 | Transalkylation of heavy alkylate using a layered catalyst A layered catalyst is disclosed for use in transalkylation of polyalkylated benzenes. The catalyst comprises an inner core material with a molecular sieve bonded over the core. The process minimizes the cracking of the alkyl groups during the transalkylation reactio... | 09/28/2010 |
| 7750198 | Olefinic feedstock treatment processes Aromatic by-products are sorbed from mono-olefin-containing feedstocks of olefins having from about 6 to 22 carbon atoms per molecule that contain aromatic by-products having from 7 to 22 carbon atoms per molecule. A benzene-containing regenerant displaces and desor... | 07/06/2010 |
| 7728185 | 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. ... | 06/01/2010 |
| 7687677 | Process for recovering thermal energy from a reactor effluent stream A processing scheme and arrangement for enhanced olefin production involves recovering thermal energy from a reactor effluent stream resulting from the dehydrogenation of a dehydrogenatable hydrocarbon. The process involves contacting the reactor effluent stream wit... | 03/30/2010 |
| 7652182 | Energy integrated processes including alkylation and transalkylation for making detergent range alkylbenzenes Integrated, energy efficient process for making detergent range alkylbenzenes, heavies coproduced during the alkylation of benzene with olefin using a solid, acidic catalyst are transalkylated. Spent benzene from regeneration of the solid, acidic catalyst used for a... | 01/26/2010 |
| 7652181 | Alkylation reactor design with effluent recycle and impure benzene regeneration An improved alkylation reactor design is disclosed. The design uses reactor effluent recycle to reduce the difference in temperature across the reaction zone improving selectivity and insuring the maintenance of a liquid phase in the reactor. ... | 01/26/2010 |
| 7638060 | Process for removing contaminants from silicone-based solvents An adsorbent for removal of impurities from silicone based solvents is presented. The adsorbent is regenerable for repeated use in cleaning silicone based solvents. ... | 12/29/2009 |
| 7637112 | Heat exchanger design for natural gas liquefaction An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates and each plate has at least one channel defined in the plate. The plates are stacked and bonded together to form a block having conduits for carrying fluids, a... | 12/29/2009 |
| 7604719 | In situ generation of hydrogen peroxide A device is disclosed for the generation of hydrogen peroxide. The device produces hydrogen peroxide on an as-needed basis through the use of electrolysis of water, wherein the hydrogen and oxygen are mixed in the electrolyzer, and the hydrogen and oxygen mixture in... | 10/20/2009 |
| 7600950 | Device to transfer catalyst from a low pressure vessel to a high pressure vessel and purge the transferred catalyst An apparatus for the transfer of solid particulate matter from a low pressure system to a high pressure system is presented. The apparatus simplifies the particle transfer process, and is useful for systems where solid catalyst particles are cycled through a reactor... | 10/13/2009 |
| 7582268 | Reactor system with interstage product removal The present invention provides a reactor system having: (1) a plurality of reactors connected in fluid flow communication and having at least one pair of reactors separated by an interstage position; (2) a line for supplying a reactant feed stream separately to an i... | 09/01/2009 |
| 7534737 | Selective hydrogenation process using layered catalyst composition and preparation of said catalyst A selective hydrogenation process and a layered catalyst composition for use in the selective hydrogenation process are disclosed. The process is useful for the selective hydrogenation of diolefins having from about 8 to about 19 carbon atoms per molecule to monoole... | 05/19/2009 |
| 7431843 | Process for the purification of silicone based solvents An apparatus and process for removing impurities from silicone based solvents is presented. The apparatus and process use an adsorbent for removing contaminants from the solvent, and when the adsorbent is sufficiently loaded with contaminants, the adsorbent is regen... | 10/07/2008 |
| 7422676 | Apparatus and process for the synthesis of hydrogen peroxide directly from hydrogen and oxygen A device is disclosed for the generation of hydrogen peroxide. The device produces hydrogen peroxide on an as-needed basis through the use of electrolysis of water, remixing hydrogen and oxygen in an appropriate ratio, and reacting the hydrogen and oxygen in water i... | 09/09/2008 |
| 7396968 | Process and apparatus for alkylation of aromatic with olefin using impure aromatic recycle Processes and apparatus for the alkylation of aromatic compound with mono-olefin aliphatic compound in the presence of solid alkylation catalyst use a lights distillation for obtaining desired selectivities to arylalkane in a energy efficient manner. The processes a... | 07/08/2008 |
| 7385097 | Process for the purification of a diolefin hydrocarbon stream A process for the purification of a diolefin hydrocarbon stream containing acetylene and sulfur compounds. ... | 06/10/2008 |
| 7339088 | Alkylbenzene refining process and apparatus Improved processes and apparatus use a finishing column with a mid-cut that provides alkylbenzene products of high purity containing less than about 1 ppmw benzene and less than about 50 ppmw heavies while accommodating enhancements in the efficiencies and the capac... | 03/04/2008 |
| 7192562 | Hydrogen-oxygen mixer-sparger An apparatus is disclosed for the generation of hydrogen peroxide. The apparatus provides for the production of a large scale volume of hydrogen peroxide by the generation of a liquid bearing bubble cloud. The bubbles are generated with a tiny volume before flowing ... | 03/20/2007 |
| 7115192 | Apparatus and process for the synthesis of hydrogen peroxide directly from hydrogen and oxygen A device is disclosed for the generation of hydrogen peroxide. The device produces hydrogen peroxide on an as-needed basis through the use of electrolysis of water, remixing hydrogen and oxygen in an appropriate ratio, and reacting the hydrogen and oxygen in water i... | 10/03/2006 |
| 7112307 | Riser reactor system for hydrocarbon cracking A riser reactor system for conversion of hydrocarbon feedstock to ethylene and propylene is described. The riser reactor system prevents riser reactors with a plurality of inlet ports for feeding gases having different compositions and for controlling the residence ... | 09/26/2006 |
| 7097347 | Static mixer and process for mixing at least two fluids A novel mixing apparatus and process for mixing at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignmen... | 08/29/2006 |
| 7097642 | Cauterizing scalpel blades An apparatus is disclosed for cutting and cauterizing of tissue. The apparatus comprises a cutting edge of a blade. The apparatus further comprises a conduit having a catalyst located near the conduit outlet, and the conduit is for delivering a combustible mixture o... | 08/29/2006 |
| 7033421 | Sorption cooling for handheld tools A device is disclosed for cooling motors that generate heat during operation. The device is more specifically directed to handheld power tools where long operation can lead to overheating of the handheld tool. ... | 04/25/2006 |
| 7022229 | Adsorption separation system An apparatus is presented for separating chemicals using adsorption separation methods. The apparatus uses a plurality of adsorption units holding adsorbent, where the adsorption units are serially connected and are moved to shift the relative position of the feeds ... | 04/04/2006 |
| 7022306 | Process for the production of hydrogen A process and apparatus are disclosed for the generation of hydrogen from hydrogen rich compounds. The process uses hydrogen peroxide as an oxidizer with a hydrogen rich compound forming a mixture such that when the mixture is exposed to a catalyst forming a hydroge... | 04/04/2006 |
| 6997213 | Low cost plate assembly for rotary valve A multiport rotary valve is described providing the interconnection of a plurality of conduits with a predetermined cycle. The valve uses a stack of plates defining channels and ports to form the fluid circuits. ... | 02/14/2006 |
| 6979402 | Miniature actual moving bed assembly An apparatus is presented for separating chemicals using adsorption separation methods. The apparatus uses a plurality of adsorption units holding adsorbent, where the adsorption units positioned in a cylindrical spool, are serially connected and the spool is rotate... | 12/27/2005 |
| 6960225 | Medical applications using microcombustion A process for delivering high intensity heat in medical applications is disclosed. The process involves forming a mixture of hydrogen and oxygen and reacting the mixture to generate heat near a region of interest. ... | 11/01/2005 |
| 6867341 | Catalytic naphtha cracking catalyst and process A process is disclosed for enhancing the production of light olefins using a catalyst with small pores. The catalyst comprises a molecular sieve having 10 membered rings with channels of limited length. The molecular sieve has a high silica to alumina ratio and has ... | 03/15/2005 |
| 6863867 | Apparatus for mixing and reacting at least two fluids A novel apparatus for mixing and reacting at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignment of t... | 03/08/2005 |
| 6832995 | Cauterizing scalpel A device is disclosed for simultaneous cutting and cauterizing of tissue. The device comprises a cutting edge of a blade. The blade defines a channel within the blade wherein the outlet end of the channel is near the cutting edge. A catalyst is disposed near the out... | 12/21/2004 |
| 6824555 | Combustion needle for medical applications A device is disclosed for generating a high intensity localized heat. The device comprises a conduit defining a channel with a catalyst disposed near the end of the channel. The channel carries a gaseous mixture to the catalyst where the mixture reacts in the presen... | 11/30/2004 |
