Solids Patents (Class 208/126)
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Patent number: 12162756Abstract: A process can be utilized to produce hydrogen and pyrolysis carbon from hydrocarbons where the hydrocarbons are converted into hydrogen and carbon in a reactor at temperatures of 1000° C. or more and the reactor has at least two electrodes that are at a distance from one another in a flow direction of the hydrocarbons. To avoid carbon deposits in a region between the electrodes, which can lead to failure of a heating system, the carbon particles may be introduced into the reactor in countercurrent to the hydrocarbons and may be heated in a heating zone between the electrodes to a temperature above a decomposition temperature of the hydrocarbons at such a mass flow that a reaction zone in which the hydrocarbons are converted into hydrogen and carbon is spatially separated in a flow direction of the carbon particles from the heating zone.Type: GrantFiled: December 12, 2019Date of Patent: December 10, 2024Assignees: thyssenkrupp Uhde GmbH, thyssenkrupp AGInventor: Nicolai Antweiler
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Patent number: 11845075Abstract: A rotary feeder having a stationary, cylindrical housing having disposed therein a number of injection nozzles, and within which rotate a plurality of vanes about a central axis, wherein pairs of adjacent vanes of the plurality of vanes define wedge volumes, wherein the housing extends a width along the central axis, wherein each of the vanes has a length along the central axis, and wherein the injection nozzles are positioned across the width of the housing, such that a spray pattern of a gas injected via the number of injection nozzles spans substantially the entire length of the vanes.Type: GrantFiled: September 11, 2020Date of Patent: December 19, 2023Assignee: Chevron Phillips Chemical Company LPInventors: Andrea L. Hoener, Elena Mathopoullos, Jorge Garza
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Patent number: 11713419Abstract: A process for converting lignocellulosic feedstock includes providing a lignocellulosic feedstock into a first inlet of a first reactor at a first end, and providing a hot feedstock into a second inlet of the first reactor at a second end of the first reactor. The process includes heating and reacting the lignocellulosic feedstock with the hot feedstock and outputting a first product stream from a first product outlet of the first reactor. The first product stream is an alkane rich product stream. A reactor system includes a first reactor having a first inlet at a first end, a second inlet at a second end and at least one product outlet. The first reactor is configured to receive a lignocellulosic feedstock at the first inlet and a hot feedstock at the second inlet. The system includes a second reactor having a first inlet downstream from the at least one product outlet.Type: GrantFiled: June 4, 2020Date of Patent: August 1, 2023Assignee: T.EN Process Technology, Inc.Inventor: Kevin J. Mills
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Patent number: 10961462Abstract: Disclosed is method that involves subjecting a base material to an extraction process to extract hydrocarbon fractions having molecular weights within a desired range from the base material to generate a resultant extraction material comprising mostly if not entirely of hydrocarbon fractions having molecular weights within the desired range. In some embodiments, the extraction process can involve performing the extraction in iterations.Type: GrantFiled: December 20, 2019Date of Patent: March 30, 2021Inventor: Billy Shane McDade
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Patent number: 10703984Abstract: Systems and methods are provided for using an oxygen-containing gas as at least part of the stripping gas for the stripping zone or section in a fluidized coker. By using an oxygen-containing gas as the stripping gas, heat can be added to the stripping zone selectively based on combustion of coke and/or hydrocarbons with the oxygen in the stripping gas. This can allow the temperature of the stripping zone to be increased relative to the temperature of the coking zone of a fluidized coking system. The flow of oxygen can be controlled to achieve a desirable temperature in the stripper while the reactor temperature is independently set by preheating of the feed and/or hot coke circulation to the reaction zone.Type: GrantFiled: November 9, 2018Date of Patent: July 7, 2020Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventor: Mohsen N. Harandi
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Patent number: 10336945Abstract: A process for the decoking of a hydrocarbon steam cracking furnace having a firebox, radiant coils, a transfer line exchanger, and an oil quench connection wherein liquid quench oil is injected to directly cool the steam-cracked effluent. Decoking feed comprising steam and air is supplied to the furnace under conditions sufficient to at least partially combust coke accumulated on the interior of the radiant coils, the transfer line exchanger, and the quench connection. Quench steam is supplied and injected into the decoking process effluent in an amount sufficient to cool the decoking process effluent below the metallurgical temperature limit of downstream piping. Also, a pyrolysis furnace for the production of ethylene is also provided.Type: GrantFiled: August 7, 2015Date of Patent: July 2, 2019Assignee: ExxonMobil Chemical Patents Inc.Inventors: David B. Spicer, Subramanian Annamalai, James M. Frye
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Patent number: 9809508Abstract: An apparatus and method are provided for processing hydrocarbon feeds. The method may pass a pyrolysis feed to a thermal pyrolysis reactor and expose at least a portion of the pyrolysis feed to high-severity operating conditions in a thermal pyrolysis reactor, wherein the thermal pyrolysis reactor is operated at operating conditions that include pressure ?36 psig and provide a reactor product that has a C3+ to C2 unsaturate weight ratio ?0.5.Type: GrantFiled: December 20, 2011Date of Patent: November 7, 2017Assignee: ExxonMobil Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Frank Hershkowitz
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Patent number: 9005428Abstract: The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the preparation of a partially upgraded feedstock exhibiting reduced viscosity and increased API gravity. This process selectively removes metals, salts, water and nitrogen from the feedstock, while at the same time maximizes the yield of the liquid product, and minimizes coke and gas production. Furthermore, this process reduces the viscosity of the feedstock in order to permit pipeline transport, if desired, of the upgraded feedstock with little or no addition of diluents.Type: GrantFiled: November 1, 2011Date of Patent: April 14, 2015Assignee: Ivanhoe HTL Petroleum Ltd.Inventors: Barry Freel, Robert G. Graham
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Publication number: 20140065684Abstract: Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful products, such as fuels. For example, systems are described that can use feedstock materials, such as cellulosic and/or lignocellulosic materials and/or starchy materials, to produce ethanol and/or butanol, e.g., by fermentation. Hydrocarbon-containing materials are also used as feedstocks.Type: ApplicationFiled: November 7, 2013Publication date: March 6, 2014Inventor: Marshall Medoff
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Patent number: 8658025Abstract: Biomass is used as a co-feed for a heavy petroleum oil coking process to improve the operation of the coking process and to utilize biomaterial for the production of transportation fuels. The coking process may be a delayed coking process or a fluidized bed coking process and in each case, the presence of the biomass will decrease the coke drying time so reducing coke handling problems in the unit besides forming a superior coke product. In the case of a fluidized bed coking process using a gasifier for the coke, the addition of an alkali metal salt improves the operation of the gasifier.Type: GrantFiled: March 1, 2011Date of Patent: February 25, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael Siskin, Glen E. Phillips, Simon R. Kelemen, Walter Weissman
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Patent number: 8496804Abstract: Systems and methods for staging an investment in hydrocarbon processing are provided. In a first stage, a hydrocarbon feed can be apportioned equally or unequally into first and second portions. The first portion can be mixed with one or more oxidants and gasified to provide a first effluent, at least a portion of which can be combusted to provide steam. The second portion can be mixed with one or more solvents to provide one or more fungible hydrocarbon products, at least a portion of which can be sold to generate capital. In a second stage, the hydrocarbon feed can be mixed with one or more solvents and one or more non-catalytic solids and the resultant mixture thermally cracked to provide one or more hydrocarbon products and coked non-catalytic solids. The coked, non-catalytic solids can be regenerated and recycled.Type: GrantFiled: October 5, 2010Date of Patent: July 30, 2013Assignee: Kellogg Brown & Root LLCInventor: Pritham Ramamurthy
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Patent number: 8460541Abstract: A process is disclosed process for converting a solid or highly viscous carbon-based energy carrier material to liquid and gaseous reaction products, said process comprising the steps of: a) contacting the carbon-based energy carrier material with a particulate catalyst material b) converting the carbon-based energy carrier material at a reaction temperature between 200° C. and 450° C., preferably between 250° C. and 350° C., thereby forming reaction products in the vapor phase. In a preferred embodiment the process comprises the additional step of: c) separating the vapor phase reaction products from the particulate catalyst material within 10 seconds after said reaction products are formed. In a further preferred embodiment step c) is followed by: d) quenching the reaction products to a temperature below 200° C.Type: GrantFiled: January 18, 2011Date of Patent: June 11, 2013Assignee: KiOR, Inc.Inventors: Paul O'Connor, Dennis Stamires, Jacob Adriaan Moulijn
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Patent number: 8377287Abstract: The present invention is directed to the upgrading of heavy petroleum oils of high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. The method comprises introducing a particulate heat carrier into an up-flow reactor, introducing the feedstock at a location above the entry of the particulate heat carrier, allowing the heavy hydrocarbon feedstock to interact with the heat carrier for a short time, separating the vapors of the product stream from the particulate heat carrier and liquid and byproduct solid matter, collecting a gaseous and liquid product mixture comprising a mixture of a light fraction and a heavy fraction from the product stream, and using a vacuum tower to separate the light fraction as a substantially bottomless product and the heavy fraction from the product mixture.Type: GrantFiled: March 11, 2008Date of Patent: February 19, 2013Assignee: Ivanhoe Energy, Inc.Inventors: Robert Graham, Barry Freel
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Patent number: 8361311Abstract: A process and apparatus for cracking a hydrocarbon feed containing resid, comprising: heating a hydrocarbon feedstock containing resid; passing said heated hydrocarbon feedstock to a vapor/liquid separator; flashing said heated hydrocarbon feedstock in said vapor/liquid separator to form a vapor phase and a liquid phase containing said resid; passing at least a portion of said resid-containing liquid phase from said vapor/liquid separator to a thermal conversion reactor operating at 649° C. or more, wherein the thermal conversion reactor contains coke particles; and converting at least a portion of said resid into olefins.Type: GrantFiled: July 9, 2010Date of Patent: January 29, 2013Assignee: Exxonmobil Chemical Patents Inc.Inventors: S. Mark Davis, Larry Lee Iaccino, Richard C. Stell, Steven E. Silverberg, Jiunn-Shyan Liou, Howard Freund
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Patent number: 8349268Abstract: A process and apparatus for upgrading heavy hydrocarbons such as asphaltenes to lighter oil and gas components is disclosed. The process provides a reaction environment that promotes fast and selective cracking of heavy hydrocarbons, while minimizing coke formation and fouling and enhancing product yields.Type: GrantFiled: September 28, 2011Date of Patent: January 8, 2013Assignee: Value Creation Inc.Inventor: Columba Yeung
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Publication number: 20120125815Abstract: The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The method for upgrading a heavy hydrocarbon feedstock comprises introducing a particulate heat carrier into an upflow reactor, introducing the heavy hydrocarbon feedstock into the upflow reactor at a location above that of the particulate heat carrier so that a loading ratio of the particulate heat carrier to feedstock is from about 15:1 to about 200:1, allowing the heavy hydrocarbon feedstock to interact with the heat carrier with a residence time of less than about 1 second, to produce a product stream, separating the product stream from the particulate heat carrier, regenerating the particulate heat carrier, and collecting a gaseous and liquid product from the product stream.Type: ApplicationFiled: December 27, 2011Publication date: May 24, 2012Inventors: Barry Freel, Robert G. Graham
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Patent number: 8183423Abstract: This invention is about a cracking technology of waste rubber, and the content of this technology is as following: the rubber mass with the catalyst were added in the cracking chamber and the cracking process of the raw material is finished. The main contents and weight percentage of catalyzer are as following: the aluminosilicate is from 35 to 50, the active alumina is from 15 to 30, the zinc oxide is from 10 to 20, the active argil is from 5 to 15, the kaoline is from 5 to 15, the weight ratio of catalyst and rubber is 2-7:1000; The cracking temperature is from 350 to 450° C. The rubber mass crack comparative downright in low temperature by using this combinatorial catalyst, that's because the temperature is controlled between 350 and 450° C., which commendably control the cracking process of the carbon chain of rubber. Moreover, more low carbon chain products can be gained for the symmetrical cracking.Type: GrantFiled: December 20, 2006Date of Patent: May 22, 2012Inventor: Bin Niu
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Patent number: 8163170Abstract: Randomly packing with filler material at least part of a pass in a coil used in a system for pyrolyzing hydrocarbon feedstock to lighter hydrocarbons. Randomly packing increases heat transfer and decreases the rate of coke build-up within the coil, yielding an improvement in overall system efficiency. Packing material can comprise or be treated with a suitable catalyst for increasing the rate of chemical decomposition, thus further improving system efficiency.Type: GrantFiled: December 2, 2008Date of Patent: April 24, 2012Assignee: Lummus Technology Inc.Inventors: Cor Franciscus van Egmond, Kandasamy Meenakshi Sundaram
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Patent number: 8105482Abstract: The present invention is directed to the upgrading of heavy hydrocarbon feedstock. The process of the present invention provides for the preparation of a partially upgraded feedstock exhibiting reduced viscosity and increased API gravity. This process reduces the viscosity of the feedstock in order to permit pipeline transport of the upgraded feedstock with little or no addition of diluents. The method for upgrading a heavy hydrocarbon feedstock comprises introducing a particulate heat carrier into an upflow reactor, introducing the heavy hydrocarbon feedstock into the upflow reactor at a location above that of the particulate heat carrier, allowing the heavy hydrocarbon feedstock to interact with the heat carrier to produce a product stream, separating the product stream from the particulate heat carrier, regenerating the particulate heat carrier, and collecting a gaseous and liquid product from the product stream.Type: GrantFiled: April 7, 2000Date of Patent: January 31, 2012Assignee: Ivanhoe Energy, Inc.Inventors: Barry Freel, Robert G. Graham
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Patent number: 8101066Abstract: An improved fluidized coking process wherein an effective amount of a basic material, preferably an alkali or alkaline-earth metal-containing compound, is added to the coking zone to mitigate agglomeration of the coke during the coking of a heavy hydrocarbonaceous feedstock to produce lower boiling products.Type: GrantFiled: November 27, 2007Date of Patent: January 24, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael Siskin, Simon R. Kelemen, Christopher P. Eppig
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Patent number: 8062503Abstract: The present invention is directed to the upgrading of heavy hydrocarbon feedstock that utilizes a short residence pyrolytic reactor operating under conditions that cracks and chemically upgrades the feedstock. The process of the present invention provides for the preparation of a partially upgraded feedstock exhibiting reduced viscosity and increased API gravity. This process selectively removes metals, salts, water and nitrogen from the feedstock, while at the same time maximizes the yield of the liquid product, and minimizes coke and gas production. Furthermore, this process reduces the viscosity of the feedstock in order to permit pipeline transport, if desired, of the upgraded feedstock with little or no addition of diluents.Type: GrantFiled: March 1, 2007Date of Patent: November 22, 2011Assignee: Ivanhoe Energy Inc.Inventors: Barry Freel, Robert G. Graham
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Patent number: 8057641Abstract: A method and apparatus for effective pyrolysis of a biomass utilizing rapid heat transfer from a solid heat carrier or catalyst. Particularly, various embodiments of the present invention provide methods and apparatuses which incorporate progressive temperature quenching and rapid disengagement of the heat carrier material and reaction product.Type: GrantFiled: July 19, 2010Date of Patent: November 15, 2011Assignee: Kior Inc.Inventors: Robert Bartek, Ronald Lee Cordle
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Patent number: 8057662Abstract: A process and apparatus for upgrading heavy hydrocarbons such as asphaltenes to lighter oil and gas components is disclosed. The process provides a reaction environment that promotes fast and selective cracking of heavy hydrocarbons, while minimizing coke formation and fouling and enhancing product yields.Type: GrantFiled: May 12, 2006Date of Patent: November 15, 2011Assignee: Value Creation Inc.Inventor: Columba K. Yeung
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Patent number: 7901568Abstract: A process is disclosed process for converting a solid or highly viscous carbon-based energy carrier material to liquid and gaseous reaction products, said process comprising the steps of: a) contacting the carbon-based energy carrier material with a particulate catalyst material b) converting the carbon-based energy carrier material at a reaction temperature between 200° C. and 450° C., preferably between 250° C. and 350° C., thereby forming reaction products in the vapor phase. In a preferred embodiment the process comprises the additional step of: c) separating the vapor phase reaction products from the particulate catalyst material within 10 seconds after said reaction products are formed; In a further preferred embodiment step c) is followed by: d) quenching the reaction products to a temperature below 200° C.Type: GrantFiled: May 4, 2007Date of Patent: March 8, 2011Assignee: Kior Inc.Inventors: Paul O'Connor, Dennis Stamires, Jacob Adriaan Moulijn
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Patent number: 7892416Abstract: The present invention provides a thermodynamic cracking process wherein the cracking takes place in a cyclone reactor and in a riser of varying areas under the influence of a rotating and turbulent fluidised energy carrier which is put in motion in a fluidised regenerator by injection of combustion gases or air. A cracking unit is also described.Type: GrantFiled: February 3, 2005Date of Patent: February 22, 2011Assignee: Ellycrack ASInventor: Olav Ellingsen
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Patent number: 7824540Abstract: Process for upgrading a liquid hydrocarbon feed comprising the steps of (a) preparing a slurry comprising the hydrocarbon feed having a boiling range above 350° C. and solid particles comprising a rehydratable material, (b) thermally treating said slurry at a temperature in the range of 250 to 550° C., (c) optionally separating the thermally treated slurry into (I) a lower boiling fraction and (ii) a higher boiling fraction containing the solid particles and formed coke, if any, and (d) separating the solid particles and formed coke, if any, from the thermally treated slurry resulting from step b) or the higher boiling fraction of step c).Type: GrantFiled: June 16, 2005Date of Patent: November 2, 2010Assignee: Albemarle CorporationInventors: Paul O'Connor, Erik Jeroen Laheij, Dennis Stamires, Michael F. Brady, Francisco René Mas Cabre, Oscar René Chamberlain Pravia, Henrique Soares Cerqueira, Fabió Lopes De Azevedo
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Patent number: 7820032Abstract: The main distinctive feature of the method lies in the fact that the hydrocarbon material is affected through primary and principal excitation by means of electromagnetic vibrations. The primary influence upon the hydrocarbon material is carried out prior to its feeding for thermal cracking, while the, principal influence is fulfilled in the rectifying column. For the method to be implemented, the primary excitation source in the installation is realized in a form of an electromagnetic oscillator, and the rectifying column is realized with possibility of resonance excitation provided, being the main exciter of the hydrocarbon material. The invention makes it possible to increase the percentage of output of lighter fractions, as well as to raise the quality of processing of raw materials.Type: GrantFiled: August 24, 2005Date of Patent: October 26, 2010Inventor: Nikolai Gennadievich Shlyachtin
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Patent number: 7744753Abstract: A process for upgrading unconventional or heavy oils such as, tar sands, shale oil, or bitumen. This process may include a coking scheme in which oil-containing solids, of suitable size, are fed directly into the riser of an FCC unit. Contacting a hot stream of solids causes vaporization and produces a gaseous product stream. The gaseous product may be separated out in a separating vessel and coked or unconverted oil-containing solids may be transferred to a gasifier for combustion at high temperatures to remove the coke and residual oil. Syngas from the gasifier may be converted to hydrogen using a water gas shift reaction. The hydrogen may be used for hydroprocessing.Type: GrantFiled: May 22, 2007Date of Patent: June 29, 2010Assignee: UOP LLCInventor: Gavin P. Towler
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Patent number: 7632394Abstract: A system and process for upgrading hydrocarbons such as heavy oils includes high temperature plasma reactor apparatus, in one or more vessels, into which the oils are introduced along with water, such as steam, to produce lighter hydrocarbon fractions, along with carbon monoxide and hydrogen, that flows to an additional stage where more hydrocarbons and water are introduced for further fractionating reactions facilitated by reaction of carbon monoxide and water to produce carbon dioxide and nascent, or prompt, free radicals of hydrogen. Heavy hydrocarbons upgraded can include heavy oils in the form of tar sands, oil shale, and oil residuals. The vessel or vessels can each contain a carbonaceous bed facilitating the described reactions and example embodiments include one vessel with the reactions performed in a single bed and, also, two vessels with the reactions performed in a carbonaceous bed portion in each vessel.Type: GrantFiled: May 29, 2007Date of Patent: December 15, 2009Assignee: Westinghouse Plasma CorporationInventors: Shyam V. Dighe, Mark Anthony Montemurro, Richard Dale Bower, Aleksandr Gorodetsky, Mark F. Darr, Ivan A. Martorell
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Patent number: 7572362Abstract: The present invention is directed to the upgrading of heavy petroleum oils of high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. It utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overall liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pipelining without the use of diluents.Type: GrantFiled: April 17, 2003Date of Patent: August 11, 2009Assignee: Ivanhoe Energy, Inc.Inventors: Barry Freel, Jerry F. Kriz, Doug Clarke
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Patent number: 7572365Abstract: The present invention is directed to the upgrading of heavy petroleum oils of high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. It utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overall liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pipelining without the use of diluents.Type: GrantFiled: October 11, 2002Date of Patent: August 11, 2009Assignee: Ivanhoe Energy, Inc.Inventors: Barry Freel, Jerry F. Kriz, Doug Clarke
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Publication number: 20090114567Abstract: A continuous process and apparatus for treating feedstocks containing carbonaceous materials involves heating bodies to heat the feedstock to vaporize and crack hydrocarbons and carbon formed on heating bodies is removed through direct contact to a flame heater.Type: ApplicationFiled: November 7, 2008Publication date: May 7, 2009Inventor: James F. Maxwell
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Patent number: 7419608Abstract: The present invention falls within the field of purifying oil-laden wastewater, which provides a method for purifying coke-cooling wastewater in a delayed coking process in petroleum chemical field. The method comprises the following steps: (a) cooling the coke-cooling wastewater produced in a delayed coking process to 5-55° C. under 0.1-0.25 MPa absolute pressure, to obtain cooled coke-cooling wastewater; (b) subjecting the cooled coke-cooling wastewater to solid-liquid separation, to obtain a coke breeze phase and a liquid phase; (c) further separating the obtained liquid phase, to obtain an oil phase and a water phase; and (d) further discharging water from the obtained oil phase, to obtain the separated oil phase. The present invention also provides an equipment for carrying out the method.Type: GrantFiled: May 15, 2007Date of Patent: September 2, 2008Assignees: East China University of Science and Technology, Sinopec Zhenhai Refining & Chemical Company Limited, Luoyang Petrochemical Engineering Corporation (LPEC) SinopecInventors: Hualin Wang, Zhuoqun Qian, Jianwen Wang, Baohua Dai, Jiangqing Hu, Shuilong Yu, Chengyu Xu, Tianming Hou, Hejie Li, Jianghua Xu, Lixin Zhang
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Patent number: 7419585Abstract: A process for upgrading a residua feedstock using a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. The residua feedstock is preferably atomized so that the Sauter mean diameter of the residua feedstock entering the reactor is less than about 2500 ?m. One or more horizontally disposed screws is preferably used to fluidize a bed of hot particles.Type: GrantFiled: January 6, 2003Date of Patent: September 2, 2008Assignee: Exxonmobil Research and Engineering CompanyInventors: Peter S. Maa, Craig Y. Sabottke
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Patent number: 7368052Abstract: 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 section, wherein at least one intermediate cylindrical section is provided between the dense fluidizing fluidized layer forming section and the high-velocity transferring section. The process can decrease the degree of changes in the amount of particles to be discharged from the dense fluidizing layer forming section and transferred by the riser, thereby proving a stable and uniform transfer of the fluidized particles.Type: GrantFiled: March 1, 2002Date of Patent: May 6, 2008Assignee: Nippon Mitsubishi Oil CorporationInventors: Yoneichi Ikeda, Yuichiro Fujiyama
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Patent number: 6835861Abstract: A low energy method of pyrolysis of rubber or other hydrocarbon material is provided. The hydrocarbon material is heated while maintaining a vacuum, using a clay catalyst. In an additional embodiment, the temperature of the reaction chamber and corresponding fuel input is varied either over time or spatially within the reaction chamber, to take advantage of the exothermic properties of the reaction. With the method of the present invention, a higher quality solid reaction product can be achieved, as well as a liquid having reduced polyaromatic hydrocarbons and oxidized organic contaminants.Type: GrantFiled: August 9, 2001Date of Patent: December 28, 2004Assignee: RJ Lee Group, Inc.Inventors: Ronald E. Nichols, Alan M. Levine, Jules E. Langlois
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Patent number: 6833485Abstract: A low energy method of pyrolysis of rubber or other hydrocarbon material is provided. The hydrocarbon material is heated while maintaining a vacuum, using a clay catalyst. In an additional embodiment, also under a vacuum and optionally with or without the catalyst, the temperature of the reaction chamber and corresponding fuel input is varied either over time or spatially within the reaction chamber, to take advantage of the exothermic properties of the reaction. With the method of the present invention, an improved solid reaction product can be achieved.Type: GrantFiled: August 9, 2001Date of Patent: December 21, 2004Assignee: RJ Lee Group, Inc.Inventors: Ronald E. Nichols, Alan M. Levine, Jules E. Langlois
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Patent number: 6797850Abstract: A chromium catalyst is disclosed for use in dehydrogenation and dehydrocyclization processes.Type: GrantFiled: August 23, 2002Date of Patent: September 28, 2004Assignee: Invista North America S.a.r.l.Inventors: Kostantinos Kourtakis, Leo E. Manzer
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Patent number: 6783662Abstract: A cavitation enhanced atomizing process comprises forming a flowing solution of the liquid to be atomized and a lower boiling cavitating liquid. This flowing solution is then contacted with a pressure reducing means, at a temperature below the bubble point of the cavitating liquid in the solution, to produce cavitation bubbles. These bubbles comprise cavitation liquid vapor and the bubble nucleation produces a two-phase fluid of the bubbles and liquid solution. The two-phase fluid is passed downstream into and through an atomizing means, such as an orifice, and into a lower pressure atomizing zone, in which the bubbles vaporize to form a spray of liquid droplets. The nucleated bubbles also grow in size as the so-formed two-phase fluid passes downstream to and through the atomizing means.Type: GrantFiled: October 17, 2002Date of Patent: August 31, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Dean C. Draemel, Nicholas C. Nahas, Teh C. Ho
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Publication number: 20040108251Abstract: A method for processing carbonaceous material in a reactor. Carbonaceous material, such as sawdust, plant residues from forestry or agricultural processes, municipal solid waste and refuse derived fuel, is fed into the riser section (10) of a reactor (10-15) in which it is contacted with inorganic particulate material and reactor walls at an elevated temperature essentially in the absence of oxygen in order to convert the carbonaceous material at least mainly into gaseous processed products, whereby a gas phase is obtained, containing fluidization gas and processed products. According to the invention a dense suspension is formed into the riser space (10) of the reactor, containing based on the particle number 7×108 to 3×1011 particles/m3 (about 2×107-1×1010 particles/ft3), and the mass ratio between the particulate matter bringing heat into the reactor and the carbonaceous material is in the range of 1:1 to 10:1.Type: ApplicationFiled: October 10, 2003Publication date: June 10, 2004Inventors: Steven Gust, Jukka-Pekka Nieminen, Jyrki Hiltunen, Pekka Knuuttila, Marko Fabritius, Pekka Jokela, Jatta Partanen
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Patent number: 6746596Abstract: The process has to do with a circuit involving a fluidized bed coker reactor working in tandem with a fluidized bed coke burner. The burner is operated at a reduced temperature in the range 550° C.-630° C. Simultaneously, the coke circulation rate is increased to ensure the heat requirement of the reactor is met. It is found that sulphur emissions from the burner are significantly reduced.Type: GrantFiled: June 14, 2001Date of Patent: June 8, 2004Assignees: AEC Oil Sands, L.P., AEC Oil Sands Limited Partnership, Athabasca Oil Sands Investment Inc., Nexen Inc., Canadian Oil Sands Investments Inc., Gulf Canada Resources Limited, Imperial Oil Resources, Mocal Energy Limited, Murphy Oil Company Ltd., Petro-CanadaInventors: Keng H. Chung, Edward Furimsky
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Publication number: 20040069682Abstract: The present invention is directed to the upgrading of heavy petroleum oils of high viscosity and low API gravity that are typically not suitable for pipelining without the use of diluents. It utilizes a short residence-time pyrolytic reactor operating under conditions that result in a rapid pyrolytic distillation with coke formation. Both physical and chemical changes taking place lead to an overall molecular weight reduction in the liquid product and rejection of certain components with the byproduct coke. The liquid product is upgraded primarily because of its substantially reduced viscosity, increased API gravity, and the content of middle and light distillate fractions. While maximizing the overall liquid yield, the improvements in viscosity and API gravity can render the liquid product suitable for pipelining without the use of diluents.Type: ApplicationFiled: April 17, 2003Publication date: April 15, 2004Inventors: Barry Freel, Jerry F. Kriz, Doug Clarke
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Publication number: 20030221992Abstract: The present invention relates to a process for increasing the capacity for processing residua and obtaining higher yields of liquids having an average boiling point equal to or less than about 510° C. A residual feedstock is introduced with recycled product asphaltenes into a short vapor contact time thermal process unit wherein the vaporized product is sent to a fractionator zone to produce a 510° C.− fraction and a 510° C.+ fraction. The 510° C.+ fraction is sent to a solvent extraction zone to produce an asphaltene-rich fraction that is recycled to the short vapor contact time thermal process unit.Type: ApplicationFiled: February 18, 2003Publication date: December 4, 2003Inventors: Martin L. Gorbaty, Michael Siskin, Mitchell Jacobson
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Publication number: 20030167691Abstract: This invention discloses improvements on previous inventions for catalytic conversion of coal and steam to methane. The disclosed improvements permit conversion of petroleum residua or heavy crude petroleum to methane and carbon dioxide such that nearly all of the heating value of the converted hydrocarbons is recovered as heating value of the product methane. The liquid feed is distributed over a fluidized solid particulate catalyst containing alkali metal and carbon as petroleum coke at elevated temperature and pressure from the lower stage and transported to the upper stage of a two-stage reactor. Particulate solids containing carbon and alkali metal are circulated between the two stages. Superheated steam and recycled hydrogen and carbon monoxide are fed to the lower stage, fluidizing the particulate solids and gasifying some of the carbon. The gas phase from the lower stage passes through the upper stage, completing the reaction of the gas phase.Type: ApplicationFiled: March 5, 2002Publication date: September 11, 2003Inventor: Nicholas Charles Nahas
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Publication number: 20030159973Abstract: A process for upgrading a residua feedstock using a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. The residua feedstock is preferably atomized so that the Sauter mean diameter of the residua feedstock entering the reactor is less than about 2500 &mgr;m. One or more horizontally disposed screws is preferably used to fluidize a bed of hot particles.Type: ApplicationFiled: January 6, 2003Publication date: August 28, 2003Inventors: Peter S. Maa, Craig Y. Sabottke
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Publication number: 20030000868Abstract: The process has to do with a circuit involving a fluidized bed coker reactor working in tandem with a fluidized bed coke burner. The burner is operated at a reduced temperature in the range 550° C.-630° C. Simultaneously, the coke circulation rate is increased to ensure the heat requirement of the reactor is met. It is found that sulphur emissions from the burner are significantly reduced.Type: ApplicationFiled: June 14, 2001Publication date: January 2, 2003Applicant: AEC OIL SANDS, L.P.Inventors: Keng H, Chung, Edward Furimsky
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Publication number: 20020038778Abstract: A process for upgrading a residua feedstock using a short vapor contact time thermal process unit comprised of a horizontal moving bed of fluidized hot particles. The residua feedstock is preferably atomized so that the Sauter mean diameter of the residua feedstock entering the reactor is less than about 2500 &mgr;m. One or more horizontally disposed screws is preferably used to fluidize a bed of hot particles.Type: ApplicationFiled: April 19, 2001Publication date: April 4, 2002Inventors: Peter S. Maa, Craig Y. Sabottke
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Publication number: 20020029996Abstract: Used oil is treated in a reactor to remove contaminants. The reactor comprises a rotating vessel housed within a heating chamber. The inside of the vessel is indirectly heated by conduction through the vessel walls. The vessel contains a permanently resident charge of non-ablating, coarse granular solids. Within the vessel, the oil is vaporized and pyrolysed, producing a hydrocarbon vapor. Coke is formed as a byproduct. Contaminants, such as metals and halides become associated with the coke. The coarse granular solids scour and comminute the coke to form fine solids. The fine solids are separated from the coarse solids and are removed from the vessel. The hydrocarbon vapors are separated from any fine solids and are routed to a vapor condensation system for producing a substantially contaminant-free product oil. The contaminant-rich solids are collected for disposal.Type: ApplicationFiled: May 22, 2001Publication date: March 14, 2002Applicant: Alberta oil sands Tech and Research AuthorityInventors: William Taciuk, Steve Odut, Gordon Taciuk, Charlie Wheeler
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Patent number: 6352638Abstract: A two-stage process for converting petroleum residua and other low value oils to high valued gasoline blendstocks and light olefins. The first stage is comprised of a thermal process unit containing a reaction zone comprised of a horizontal moving bed of fluidized hot particles operated at temperatures from about 500 to 600° C. and having a short vapor residence time, and the second stage is comprised of a catalytic conversion zone operated at a temperature of about 525° C. to about 650° C., and also having a short vapor residence time, preferably shorter than that of the first stage reaction zone.Type: GrantFiled: December 13, 2000Date of Patent: March 5, 2002Assignee: Exxon Research and Engineering CompanyInventors: Mitchell Jacobson, Willibald Serrand
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Patent number: RE42832Abstract: A method is disclosed for reforming organics into shorter-chain unsaturated organic compounds. A molten metal bath is provided which can cause homolytic cleavage of an organic component of an organic-containing feed. The feed is directed into the molten metal bath at a rate which causes partial homolytic cleavage of an organic component of the feed. Conditions are established and maintained in the reactor to cause partial homolytic cleavage of the organic component to produce unsaturated organic compounds, as products of the homolytic cleavage, which are discharged from the molten metal bath.Type: GrantFiled: July 10, 2003Date of Patent: October 11, 2011Assignee: Quantum Catalytics, L.L.C.Inventors: Christopher J. Nagel, Thomas P. Griffin, Thomas A. Kinney, Kevin A. Sparks