With Heating In Tubular Confined Stream Patents (Class 208/132)
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Patent number: 11867470Abstract: Provided herein are components for a fluid network modified for one or more objective functions of interest such as pressure drop, erosion rate, fouling, coke deposition and operating costs.Type: GrantFiled: January 8, 2020Date of Patent: January 9, 2024Assignee: NOVA Chemicals (International) S.A.Inventors: Grazyna Petela, Eric Clavelle, Edgar Yajure
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Patent number: 11471817Abstract: The present disclosure relates to methods for processing plastic waste pyrolysis gas, such as methods wherein clogging of the systems used in the method is avoided or at least alleviated.Type: GrantFiled: June 1, 2020Date of Patent: October 18, 2022Assignee: NESTE OYJInventors: Antti Kurkijärvi, Hannu Lehtinen, Esa Korhonen, Mikko Matilainen, Max Nyström
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Patent number: 10753646Abstract: An apparatus for heating a process fluid is presented. The apparatus is for improving the foot-print of a fired heater and to reduce the fired heater volume. The apparatus includes a W-shaped process coil to provide for a smaller single-cell fired heater, and a fired heater with a lower profile, providing flexibility in positioning relative to downstream reactors.Type: GrantFiled: October 31, 2017Date of Patent: August 25, 2020Assignee: UOP LLCInventors: Rajeswar Gattupalli, Quan Yuan, Clayton C. Sadler, Michael J. Vetter, Bryan J. Egolf
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Patent number: 10655071Abstract: Methods and systems for managing a decomposition process are disclosed. An example method can comprise estimating a coking rate for a process based on a coking model. The coking model can comprise a pyrolytic coking term and a catalytic coking term. An example method can comprise, performing at least a portion of the process, receiving a parameter for the process, and adjusting an operation of the process based on the parameter.Type: GrantFiled: May 28, 2015Date of Patent: May 19, 2020Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Abduljelil Iliyas, Munawar Saudagar, Hatem Belfadhel
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Patent number: 10518226Abstract: A membrane with rejection properties for mono and divalent-salts, BOD and COD good resistance to cleaning chemicals and maintaining high permeability for water. A polymeric coating prepared from polydopamine or hydroquinone or catechol or mixtures thereof, is deposited. In another embodiment, coating process steps and conditions are taught to achieve thickness control to tune the rejection properties of the membranes.Type: GrantFiled: May 15, 2012Date of Patent: December 31, 2019Inventors: Dileep Agnihotri, Xiaofei Huang, Hua Li
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Patent number: 9360232Abstract: A fluidized bed heat exchange apparatus of a flue gas heat recovery type for producing high temperature water. The fluidized bed heat exchange apparatus passes a waste heat of a combustion flue gas containing a high temperature water vapor emitted from a combustion apparatus subsequently through a water fluidized bed and a heat medium fluidized bed such that a hot water at a saturation temperature of a wet air produced from a latent heat of the combustion flue gas at the water fluidized bed is again heated at the heat medium fluidized bed which does not have a vapor condensation phenomenon, thereby producing a hot water at a temperature higher than the saturation temperature of the wet air.Type: GrantFiled: January 4, 2013Date of Patent: June 7, 2016Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Sang-Il Park, Kyoung-Bin Choi, Chang-Bok Ko
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Patent number: 9296961Abstract: A process is provided that is directed to a steam pyrolysis zone integrated with a hydroprocessing zone including residual bypass to permit direct processing of crude oil feedstocks to produce petrochemicals including olefins and aromatics.Type: GrantFiled: April 17, 2013Date of Patent: March 29, 2016Assignee: Saudi Arabian Oil CompanyInventors: Raheel Shafi, Abdennour Bourane, Esam Sayed, Ibrahim A Abba, Abdul Rahman Zafer Akhras
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Patent number: 8968553Abstract: Undesirable components of traditional coking processes are selectively cracked or coked in the coking vessel by injecting an additive into the vapors in the coking vessel. The additive contains catalyst(s), seeding agent(s), excess reactant(s), quenching agent(s), carrier(s), or any combination thereof to modify reaction kinetics to preferentially crack (or coke) these undesirable components that typically have a high propensity to coke, and are often precursors to coke in the coking process. These undesirable components can also be very problematic in downstream catalytic cracking processes, significantly contributing to coke on catalyst and catalyst deactivation. Exemplary embodiments of the present invention also provide methods to (1) decrease coke production, (2) increase liquid transportation fuels, (3) control the coke crystalline structure, and (4) control the quantity and quality of volatile combustible materials (VCMs) in the resulting coke.Type: GrantFiled: February 12, 2013Date of Patent: March 3, 2015Inventor: Roger G. Etter
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Patent number: 8951407Abstract: A simplified process is provided for creating hybrid crude oils and hybrid crude fractions with characteristics superior to the original. The process uniquely combines gases with crude oil or crude fractions in an effervescent turbulent manner at low temperatures and pressures and without the further aid of catalysts. The process breaks large chain hydrocarbons into smaller chain hydrocarbons, molecularly combines carbon, hydrogen, and/or hydrocarbon molecules from the gases with and into hydrocarbon molecules of the crude or crude fraction, and separates contaminants and impurities.Type: GrantFiled: March 19, 2014Date of Patent: February 10, 2015Assignee: Clean Global Energy, Inc.Inventors: Robert Miller, Delmar Guenther, Rick Lutterbach, Jeff Nichols
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Patent number: 8932458Abstract: The delayed coking process comprises the steps of: thermally cracking hydrocarbon feedstock in the coke drum thereby converting the feedstock to coke and hydrocarbon products; routing thermally crack hydrocarbon products to downstream fractionators; and periodically removing coke out of the drum. Before coke removal, the drum has to be steam stripped, water quench, then vented. During venting, H2S scavenger is injected to the drum vapor space to remove residual H2S.Type: GrantFiled: February 22, 2013Date of Patent: January 13, 2015Assignee: Marathon Petroleum Company LPInventors: Gary M. Gianzon, David T. Roland
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Patent number: 8858785Abstract: A device for processing a hydrocarbon resource may include a hydrocarbon processing container configured to receive the hydrocarbon resource therein and having a pair of opposing ends with an enlarged width medial portion therebetween. The device may also include a radio frequency (RF) source, and a spirally wound electrical conductor surrounding the hydrocarbon processing container and coupled to the RF source. The spirally wound electrical conductor may be configured to generate magnetic fields within the hydrocarbon processing container that are parallel with an axis thereof.Type: GrantFiled: January 13, 2012Date of Patent: October 14, 2014Assignee: Harris CorporationInventor: Francis Eugene Parsche
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Patent number: 8840780Abstract: A device for processing a hydrocarbon resource may include a hydrocarbon processing container configured to receive the hydrocarbon resource therein and having a pair of opposing ends with an enlarged width medial portion therebetween. The device may also include a radio frequency (RF) source, and a first spirally wound electrical conductor surrounding the hydrocarbon processing container and coupled to the RF source. The device may further include a second spirally wound electrical conductor carried within the hydrocarbon processing container. The first spirally wound electrical conductor may be configured to generate magnetic fields with the hydrocarbon processing container that are parallel with an axis thereof.Type: GrantFiled: January 13, 2012Date of Patent: September 23, 2014Assignee: Harris CorporationInventor: Francis Eugene Parsche
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Patent number: 8821713Abstract: A method and system for processing naphtha, including a high shear mechanical device. In one embodiment, the method comprises forming a dispersion of gas in a naphtha hydrocarbon liquid in a high shear device prior to introduction in a cracking reactor/furnace. In another instance the system for processing naphtha comprises a high shear device for mechanically shearing hydrocarbons.Type: GrantFiled: December 15, 2010Date of Patent: September 2, 2014Assignee: H R D CorporationInventors: Abbas Hassan, Aziz Hassan, Krishnan Viswanathan, Gregory G. Borsinger
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Publication number: 20140238899Abstract: A system and method is provided for upgrading a continuously flowing process stream including heavy crude oil (HCO). A reactor receives the process stream in combination with water, at an inlet temperature within a range of about 60° C. to about 200° C. The reactor includes one or more process flow tubes having a combined length of about 30 times their aggregated transverse cross-sectional dimension, and progressively heats the process stream to an outlet temperature T(max)1 within a range of between about 260° C. to about 400° C. The reactor maintains the process stream at a pressure sufficient to ensure that it remains a single phase at T(max)1. A controller selectively adjusts the rate of flow of the process stream through the reactor to maintain a total residence time of greater than about 1 minute and less than about 25 minutes.Type: ApplicationFiled: October 28, 2013Publication date: August 28, 2014Inventor: W. Marcus Trygstad
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Patent number: 8815080Abstract: Processes for production of olefins from hydrocarbon feedstocks are provided. In one aspect, the processes of the present invention utilize coils passing through a pyrolysis furnace to partially convert a hydrocarbon feedstock to olefins, followed by further conversion of the hydrocarbon feedstock in an adiabatic reactor. A portion of the coils in the pyrolysis furnace carry the hydrocarbon feedstock and the remainder carry steam only. After a selected period of time, the material flowing through the coils is switched. By flowing steam through the coils that had previously contained the hydrocarbon feedstock, on-line decoking can occur. In another aspect, a high temperature reactor is used to convert methane or natural gas to olefins.Type: GrantFiled: January 26, 2009Date of Patent: August 26, 2014Assignee: Lummus Technology Inc.Inventor: Kandasamy Meenakshi Sundaram
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Patent number: 8771475Abstract: A tube coil for a double fired coker heater wherein the tube coil has at least two independent flow passes in an intertwined serpentine pattern. The tubes are located in a common plane and plumbed in parallel with one another. These tube coils can be used in a number of configurations within the radiant section of a coker heater.Type: GrantFiled: November 19, 2009Date of Patent: July 8, 2014Assignee: Great Southern Independent LLCInventors: William C. Gibson, Robert L. Gibson
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Publication number: 20140174986Abstract: The invention discloses an electrical induction heating assembly which comprises an induction heating coil surrounding and being thermally insulated from a concentric closed cylindrical chamber having an inlet and an outlet. An electrically conductive element is located within or forms part of the chamber. The chamber includes means for uniform distribution of material that is to be heated in the chamber. A body of discreet agitating media is contained within the chamber. The body of discreet agitating media typically comprise steel balls.Type: ApplicationFiled: April 26, 2012Publication date: June 26, 2014Inventor: Harry Dean Kassel
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Patent number: 8747765Abstract: In one aspect, the present techniques include a heat exchange apparatus including: a) a body comprising an interior cavity, the body including: a first surface and a second surface defining at least a portion of the body and the first surface positioned exterior with respect to the second surface and the interior cavity, and the second surface positioned exterior with respect to the interior cavity and interior with respect to the first surface; b) a first conduit for conveying a fluid to the body; c) a second conduit in fluid communication with the first conduit wherein the second conduit is positioned at least partially within the interior cavity of the body; and d) a joint between the first conduit and the second conduit, wherein the joint moves between a first location and a second location based on the temperature within the interior cavity, wherein at least one of said first location and said second location is positioned intermediate the first surface and the second surface.Type: GrantFiled: April 19, 2010Date of Patent: June 10, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: David B. Spicer, Jeffrey P. Jones
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Patent number: 8696888Abstract: The invention concerns integration of hydroprocessing and steam cracking. A feed comprising crude or resid-containing fraction thereof is severely hydrotreated and passed to a steam cracker to obtain an olefins product.Type: GrantFiled: October 17, 2006Date of Patent: April 15, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Megan L. Renstrom, Julian A. Wolfenbarger, Stephen H. Brown, John S. Buchanan
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Patent number: 8684384Abstract: A process for cracking a hydrocarbon feedstream containing non-volatile components in a hydrocarbon cracking furnace having upper and lower convection heating sections within a flue of the furnace, a radiant heating section downstream of and connected to said lower convection heating section, a transfer line exchanger downstream of and connected to said radiant heating section, a furnace box containing furnace burners and said radiant heating section, and a vapor/liquid separator vessel connected between the upper and lower convection heating sections, the process comprising (a) passing said hydrocarbon feedstream into said upper convection section to heat said hydrocarbon feedstream to a first temperature sufficient to flash at least a portion of the hydrocarbons within said hydrocarbon feedstream into a vapor phase to form a vapor/liquid stream; (b) passing said vapor/liquid stream out of said upper convection section and into said vapor/liquid separator to separate said vapor/liquid stream into a hydrocarbType: GrantFiled: May 7, 2009Date of Patent: April 1, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: David B. Spicer, Caleb M. Scherer, James M. Frye, Subramanian Annamalai
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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: 8603325Abstract: A biomass pyrolysis oil 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 pyrolysis oil will decrease the coke drying time while 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: December 10, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael Siskin, Glen E. Phillips, Simon R. Kelemen, Walter Weissman
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Patent number: 8585890Abstract: This invention relates to a tubular cracking furnace, especially an ethylene cracking furnace, which comprises a convection section and a or dual radiant section(s), at least one heat transfer intensifying member arranged in at least one pass each radiant tube in said radiant section, said at least one heat transfer intensifying member comprises a first heat transfer intensifying member, which is arranged at a location between 10D and 25D upstream of the extreme point of said at least one pass radiant tube metal temperature, wherein D is the inner diameter of the radiant tube having heat transfer intensifying members. The present invention could achieve the best enhanced heat transfer result with given number of heat transfer intensifying member, by optimizing the locations of heat transfer intensifying members in the radiant tube.Type: GrantFiled: March 28, 2008Date of Patent: November 19, 2013Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Guoqing Wang, Lijun Zhang, Zhiguo Du, Shuo Chen, Zhaobin Zhang, Cong Zhou, Xianfeng Zhou
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Publication number: 20130261340Abstract: Biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) is processed to produce useful products, such as fuels. For example, systems 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.Type: ApplicationFiled: March 13, 2013Publication date: October 3, 2013Inventor: Marshall Medoff
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Patent number: 8496805Abstract: Petroleum cokes derived from extra-heavy crude sources can be made more amenable to quenching by adding water or a water/light oil mixture to the coker feed downstream of the furnace. The coke product resulting from this addition of normally volatile liquids to the hot coker feed is still relatively dense but is more friable and usually is in a compact, relatively free-flowing, granular form. The coke is more amenable to uniform quenching in the drum and so can be cut and discharged with a reduced risk of eruptions and a reduced risk of fires in the coke pit or when the coke is subsequently handled and transported.Type: GrantFiled: July 1, 2010Date of Patent: July 30, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Craig Y. Sabottke, Fritz A. Bernatz, Eric W. Fryatt, Christopher P. Eppig, Jordan K. Lambert
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Patent number: 8491779Abstract: The present invention relates to a process for the pretreatment of heavy oils using a catalytic hydrotreating process prior to introduction to a refinery. More specifically, the invention relates to the use of an HDM reactor and an HDS reactor in order to improve the characteristics of the heavy oil, such that when the oil is introduced into the refinery, the refinery can achieve improved throughputs, increased catalysts life, increased life cycles, and a reduction in overall operation costs.Type: GrantFiled: June 21, 2010Date of Patent: July 23, 2013Assignee: Saudi Arabian Oil CompanyInventors: Raheel Shafi, Esam Z. Hamad, Stephane Cyrille Kressmann, Julio Hasselmeyer Moses
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Patent number: 8445547Abstract: Liquefied petroleum coke (LPC) comprises diesel engine fuel grade petroleum coke that is produced by subjecting crude oil refinery feedstock to de-salting, coking, micronization, de-ashing, and slurrification processes to reduce impurities such as metallic components and make the LPC suitable for use in internal combustion engines, such as diesel engine systems.Type: GrantFiled: August 11, 2009Date of Patent: May 21, 2013Inventors: Alfred Jorgensen, Roger J. Swenson
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Patent number: 8435386Abstract: A process and apparatus for cracking a hydrocarbon feed in a steam cracking furnace by withdrawing a resid-rich stream from a resid knockout vessel and recycling the resid-rich stream through a convection heating section of the furnace.Type: GrantFiled: September 30, 2011Date of Patent: May 7, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Richard C. Stell, David B. Spicer, George Stephens
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Patent number: 8431015Abstract: Methods and apparatus relate to processes and systems that introduce microwaves into mixtures containing hydrocarbons. The microwaves cause heating of the hydrocarbons in order to upgrade the hydrocarbons. Such upgrading occurs after recovering the hydrocarbons from within a formation and results in lowering viscosity of the hydrocarbons to enable transportation of the hydrocarbons to offsite locations, such as a refinery.Type: GrantFiled: May 19, 2010Date of Patent: April 30, 2013Assignee: ConocoPhillips CompanyInventors: Dwijen K. Banerjee, Kenneth W. Smith
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Patent number: 8420875Abstract: The conversion of waste plastics material to hydrocarbon fuel products, particularly transportation fuels. The waste plastics material can be obtained from any suitable source, such as a municipal solid waste facility and from agricultural and horticultural activity. The plastics material feed, which can contain from about 10 to about 50 wt. % dirt, is reduced to an effective size, then dried, if needed, to a moisture level of 2 wt. % and less, then screened to removed dirt, then densified into nuggets of at least about 10 lb/ft3, then pyrolyzed.Type: GrantFiled: March 23, 2012Date of Patent: April 16, 2013Assignee: Rational Energies, LLCInventors: Ian Mackay, Karl Greden
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Patent number: 8398846Abstract: The invention relates to a process for thermally cracking a hydrocarbon feed in an installation comprising a radiant section and a convection section, wherein a hydrocarbon feed stock is fed to a feed preheater present in the convection section, the heat pick-up of the feed preheater is controlled by regulating the heat exchange capacity of an economiser, said economiser being located in the convection section between the feed preheater and the radiant section, and wherein the feed heated in the preheater is thereafter cracked in the radiant section. The invention further relates to an installation for the cracking of a hydrocarbon feed.Type: GrantFiled: January 20, 2006Date of Patent: March 19, 2013Assignee: Technip FranceInventors: Jacobus Arie Schilleman Overwater, Johannes Pieter Van Der Eijk
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Patent number: 8309363Abstract: An apparatus (10) for evaluating a liquid hydrocarbon to determine the propensity for coke formation comprising an injector (12), a supply of air (14) arranged to supply air to the injector (12) and a supply of liquid hydrocarbon (16) arranged to supply liquid hydrocarbon to the injector (12). The injector (12) is arranged to atomise the liquid hydrocarbon and to supply the air and atomised liquid hydrocarbon into a chamber (18) and the chamber (18) is arranged to supply atomised liquid hydrocarbon and air to a test pipe (20) and a heater (22) is arranged to heat the test pipe (20). The test pipe (20) is pivotably mounted on a frame (28) such that the orientation of the test pipe (20) relative to the frame (28) is variable. The apparatus (10) is able to simulate conditions within a vent pipe of a lubricant system of an aero gas turbine engine.Type: GrantFiled: May 11, 2009Date of Patent: November 13, 2012Assignee: Rolls-Royce PLCInventors: John S Askins, Timothy A Shepherd
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Patent number: 8282814Abstract: One exemplary embodiment of the present invention can be a fired heater for a hydrocarbon conversion process. The fired heater includes inlet and outlet headers or manifolds, a set of heater tubes with each heater tube having an inlet and an outlet, at least one restriction orifice adjacent the inlet of at least one heater tube. The restriction orifice may be within the inlet manifold and adjacent the inlet of a heater tube, or between the inlet manifold and the inlet to the heater tube. A process may include passing a hydrocarbon stream through the fired heater described herein during the course of operating a hydrocarbon conversion process.Type: GrantFiled: March 31, 2009Date of Patent: October 9, 2012Assignee: UOP LLCInventor: Kenneth D. Peters
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Patent number: 8277639Abstract: The invention is directed to a process comprising feeding high TAN feedstreams to a steam cracker, whereby naphthenic acids in the feedstreams are substantially converted to CO, CO2, and low amounts of smaller acids (e.g., formic, acetic, propionic, and butyric acids). The feedstream is preferably a high TAN feedstream comprising crude or high TAN feedstream which has previously been subjected to a refinery process to remove resid.Type: GrantFiled: September 20, 2005Date of Patent: October 2, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: John Scott Buchanan, Paul F. Keusenkothen, Stephen Harold Brown, Julian A. Wolfenbarger, James Earl Graham, James N. McCoy
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Patent number: 8273936Abstract: A process for cracking a heavy hydrocarbon feed is disclosed. The heavy hydrocarbon feed is passed to a first zone of a vaporization unit to separate a first vapor stream and a first liquid stream. The first liquid stream is passed to a second zone of the vaporization unit and contacted intimately with a countercurrent steam to produce a second vapor stream and a second liquid stream. The second vapor stream is contacted with a wash liquid in a rectification section to form a rectified stream. The first vapor stream and the rectified stream are cracked in the radiant section of the steam cracker to produce a cracked effluent.Type: GrantFiled: November 22, 2010Date of Patent: September 25, 2012Assignee: Equistar Chemicals, LPInventors: Robert S. Bridges, Steven T. Coleman
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Patent number: 8231837Abstract: A thermal cracking tube is adapted to suppress pressure losses while maintaining heat transfer promoting effect on the fluid inside the tube. The tube has a plurality of projections rows extending circumferentially along inner surface of the tube orthogonal to or as inclined with respect to the axis of tube, each of the projection rows including a plurality of projections provided on the tube inner surface. The tube is defined by S/10?D=0.2?0.7, h/D=0.02?0.05 and L/?D=0.04?0.5. D is inner diameter of the tube, h is height of projection A arbitrarily chosen in a projection row ?, L is length of circular arc of projection A in a direction orthogonal to tube axis, and S is area of a region R surrounded by projection A, phantom lines L1 and L2 (extending respectively from circumferentially opposite ends of projection A in parallel to tube axis) and projection row ? downstream from projection row ?.Type: GrantFiled: March 28, 2008Date of Patent: July 31, 2012Assignee: Kubota CorporationInventor: Kunihide Hashimoto
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Patent number: 8197668Abstract: A process and apparatus are provided for upgrading steam cracker tars from steam crackers. The invention also relates to a steam cracking process and apparatus for reducing yields of tars produced from steam cracking while increasing yields of higher value products by heating steam cracker tar, in the presence of hydrogen donor compounds, e.g., tetralin. The hydrogen donor compounds can be provided in a hydrogen donor-rich hydrocarbon stream, e.g., light cycle oils, or low sulfur vacuum tower bottoms. The treated tar can be separated into gas oil, fuel oil and tar streams.Type: GrantFiled: July 9, 2009Date of Patent: June 12, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: John D. Y. Ou, Glenn A. Heeter, Paul F. Keusenkothen, James N. McCoy, Judith Hey, legal representative
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Patent number: 8173854Abstract: A process for cracking a hydrocarbon feedstock containing salt and/or particulate matter, wherein said hydrocarbon feedstock containing salt and/or particulate matter is partially desalted, e.g., by passing through a centrifugal separator, heated, then separated into a vapor phase and a liquid phase by flashing in a flash/separation vessel, separating and cracking the vapor phase which comprises less than about 98% of the hydrocarbon feedstock containing salt and/or particulate matter, and recovering cracked product.Type: GrantFiled: June 30, 2005Date of Patent: May 8, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: James N. McCoy, Arthur R. DiNicolantonio, Richard C. Stell
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Patent number: 8168061Abstract: This invention relates to a process for the selective conversion of vacuum gas oil. The vacuum gas oil is treated in a two step process. The first is thermal conversion and the second is catalytic cracking of the products of thermal conversion. The product slate can be varied by changing the conditions in the thermal and catalytic cracking steps as well as by changing the catalyst in the cracking step. The combined products from thermal and catalytic cracking are separated in a divided wall fractionator.Type: GrantFiled: July 7, 2009Date of Patent: May 1, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Martin L. Gorbaty, Bruce R. Cook, David T. Ferrughelli, Jason B. English, Steven S. Lowenthal
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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: 8163168Abstract: The present invention relates to a process for the selective conversion of hydrocarbon feed having a Conradson Carbon Residue content of 0 to 6 wt %, based on the hydrocarbon feed. The hydrocarbon feed is treated in a two-step process. The first is thermal conversion and the second is catalytic cracking of the products of the thermal conversion. The present invention results in a process for increasing the distillate production from a hydrocarbon feedstream for a fluid catalytic cracking unit. The resulting product slate from the present invention can be further varied by changing the conditions in the thermal and catalytic cracking steps as well as by changing the catalyst in the cracking step.Type: GrantFiled: July 7, 2009Date of Patent: April 24, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Martin L. Gorbaty, Bruce R. Cook, David T. Ferrughelli, Jason B. English, Steven S. Lowenthal
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Patent number: 8158840Abstract: A process and apparatus for steam cracking liquid hydrocarbon feedstocks utilizes a vapor/liquid separation apparatus to treat heated vapor/liquid mixtures to provide an overhead of reduced residue content and includes: i) indirectly heat exchanging liquid bottoms with boiler feed water to provide cooled liquid bottoms and preheated boiler feed water; ii) directing at least a portion of said preheated boiler feed water to a steam drum; and iii) recovering steam having a pressure of at least about 4100 kPa (600 psia) from said steam drum.Type: GrantFiled: June 3, 2008Date of Patent: April 17, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventor: David B. Spicer
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Patent number: 8147676Abstract: The present invention relates to an improved delayed coking process. A coker feed, such as a vacuum resid, is treated with (i) a metal-containing agent and (ii) an oxidizing agent. The feed is treated with the oxidizing agent at an oxidizing temperature. The oxidized feed is then pre-heated to coking temperatures and conducted to a coking vessel for a coking time to allow volatiles to evolve and to produce a substantially free-flowing coke. A metals-containing composition is added to the feed at at least one of the following points in the process: prior to the heating of the feed to coking temperatures, during such heating, and/or after such heating.Type: GrantFiled: October 21, 2005Date of Patent: April 3, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Michael Siskin, David T. Ferrughelli, Martin L. Gorbaty, Simon R. Kelemen, Leo D. Brown
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Patent number: 8123931Abstract: The present invention relates to a catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5?j?120, 0?k?50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield.Type: GrantFiled: May 23, 2008Date of Patent: February 28, 2012Assignee: LG Chem, Ltd.Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
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Patent number: 8105479Abstract: A process and apparatus are provided for the present invention relates to a process for upgrading tar-containing effluent from a steam cracker furnace that comprises: a) contacting a steam cracker tar-containing effluent with steam and for a time, sufficient to convert at least a portion of the steam cracker tar to a mixture comprising lower boiling molecules and the steam cracker tar-containing effluent; and b) separating the mixture from step a) into i) at least one tar-lean product; and ii) a tar-rich product having a final boiling above the final boiling point of the at least one tar-lean product.Type: GrantFiled: June 18, 2009Date of Patent: January 31, 2012Assignee: Exxonmobil Chemical Patents Inc.Inventors: John D. Y. Ou, Glenn A. Heeter
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Patent number: 8106248Abstract: In one aspect, the inventive process comprises a process for pyrolyzing a hydrocarbon feedstock containing nonvolatiles in a regenerative pyrolysis reactor system. The process comprises: (a) heating the nonvolatile-containing hydrocarbon feedstock upstream of a regenerative pyrolysis reactor system to a temperature sufficient to form a vapor phase that is essentially free of nonvolatiles and a liquid phase containing the nonvolatiles; (b) separating said vapor phase from said liquid phase; (c) feeding the separated vapor phase and methane to the pyrolysis reactor system; and (d) converting the methane and separated vapor phase in said pyrolysis reactor system to form a pyrolysis product. In another aspect, the invention includes a separation process that feeds multiple pyrolysis reactors.Type: GrantFiled: May 15, 2008Date of Patent: January 31, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Frank Hershkowitz
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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: 8088345Abstract: The present invention relates to piping (1) for use in industrial activities, where the piping (1) has a specific geometry. In particular, the piping (1) is formed as a lowamplitude helix, which causes fluid flowing through the piping (1) to swirl. This swirl flow provides a large number of advantages. Particular applications where the piping (1) can be used include petroleum production risers and flowlines, production tubing for downhole use in wells, pipelines for the transportation of fluids, static mixers, bends, junctions or the like, penstocks and draft tubes, reactors for chemical, petrochemical, and pharmaceutical applications, heat exchangers, cold boxes, incinerators and furnaces for waste disposal, static separators, and air intakes.Type: GrantFiled: September 21, 2005Date of Patent: January 3, 2012Assignee: Technip France S.A.S.Inventors: Colin G. Caro, Philip L. Birch, William Tallis
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Patent number: 8083932Abstract: A process for making lower olefins from a wide boiling range hydrocarbon feed by use of a combination of one or more vapor/liquid separation devices, and then pyrolytically cracking the vapor phase in separate sets of pyrolysis radiant tubes, thereby producing a higher level of lower olefin product.Type: GrantFiled: August 21, 2008Date of Patent: December 27, 2011Assignee: Shell Oil CompanyInventors: Arthur James Baumgartner, Robert Lawrence Blackbourn, Danny Yuk Kwan Ngan
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Patent number: 8057663Abstract: A process and apparatus for cracking a hydrocarbon feed in a steam cracking furnace by withdrawing a resid-rich stream from a resid knockout vessel and recycling the resid-rich stream through a convection heating section of the furnace.Type: GrantFiled: May 29, 2009Date of Patent: November 15, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Richard C. Stell, David B. Spicer, George Stephens