With Heating In Tubular Confined Stream Patents (Class 208/132)
  • Patent number: 10753646
    Abstract: 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: Grant
    Filed: October 31, 2017
    Date of Patent: August 25, 2020
    Assignee: UOP LLC
    Inventors: Rajeswar Gattupalli, Quan Yuan, Clayton C. Sadler, Michael J. Vetter, Bryan J. Egolf
  • Patent number: 10655071
    Abstract: 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: Grant
    Filed: May 28, 2015
    Date of Patent: May 19, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Abduljelil Iliyas, Munawar Saudagar, Hatem Belfadhel
  • Patent number: 10518226
    Abstract: 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: Grant
    Filed: May 15, 2012
    Date of Patent: December 31, 2019
    Inventors: Dileep Agnihotri, Xiaofei Huang, Hua Li
  • Patent number: 9360232
    Abstract: 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: Grant
    Filed: January 4, 2013
    Date of Patent: June 7, 2016
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Sang-Il Park, Kyoung-Bin Choi, Chang-Bok Ko
  • Patent number: 9296961
    Abstract: 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: Grant
    Filed: April 17, 2013
    Date of Patent: March 29, 2016
    Assignee: Saudi Arabian Oil Company
    Inventors: Raheel Shafi, Abdennour Bourane, Esam Sayed, Ibrahim A Abba, Abdul Rahman Zafer Akhras
  • Patent number: 8968553
    Abstract: 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: Grant
    Filed: February 12, 2013
    Date of Patent: March 3, 2015
    Inventor: Roger G. Etter
  • Patent number: 8951407
    Abstract: 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: Grant
    Filed: March 19, 2014
    Date of Patent: February 10, 2015
    Assignee: Clean Global Energy, Inc.
    Inventors: Robert Miller, Delmar Guenther, Rick Lutterbach, Jeff Nichols
  • Patent number: 8932458
    Abstract: 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: Grant
    Filed: February 22, 2013
    Date of Patent: January 13, 2015
    Assignee: Marathon Petroleum Company LP
    Inventors: Gary M. Gianzon, David T. Roland
  • Patent number: 8858785
    Abstract: 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: Grant
    Filed: January 13, 2012
    Date of Patent: October 14, 2014
    Assignee: Harris Corporation
    Inventor: Francis Eugene Parsche
  • Patent number: 8840780
    Abstract: 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: Grant
    Filed: January 13, 2012
    Date of Patent: September 23, 2014
    Assignee: Harris Corporation
    Inventor: Francis Eugene Parsche
  • Patent number: 8821713
    Abstract: 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: Grant
    Filed: December 15, 2010
    Date of Patent: September 2, 2014
    Assignee: H R D Corporation
    Inventors: Abbas Hassan, Aziz Hassan, Krishnan Viswanathan, Gregory G. Borsinger
  • Publication number: 20140238899
    Abstract: 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: Application
    Filed: October 28, 2013
    Publication date: August 28, 2014
    Inventor: W. Marcus Trygstad
  • Patent number: 8815080
    Abstract: 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: Grant
    Filed: January 26, 2009
    Date of Patent: August 26, 2014
    Assignee: Lummus Technology Inc.
    Inventor: Kandasamy Meenakshi Sundaram
  • Patent number: 8771475
    Abstract: 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: Grant
    Filed: November 19, 2009
    Date of Patent: July 8, 2014
    Assignee: Great Southern Independent LLC
    Inventors: William C. Gibson, Robert L. Gibson
  • Publication number: 20140174986
    Abstract: 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: Application
    Filed: April 26, 2012
    Publication date: June 26, 2014
    Inventor: Harry Dean Kassel
  • Patent number: 8747765
    Abstract: 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: Grant
    Filed: April 19, 2010
    Date of Patent: June 10, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David B. Spicer, Jeffrey P. Jones
  • Patent number: 8696888
    Abstract: 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: Grant
    Filed: October 17, 2006
    Date of Patent: April 15, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Paul F. Keusenkothen, Megan L. Renstrom, Julian A. Wolfenbarger, Stephen H. Brown, John S. Buchanan
  • Patent number: 8684384
    Abstract: 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 hydrocarb
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: April 1, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David B. Spicer, Caleb M. Scherer, James M. Frye, Subramanian Annamalai
  • Patent number: 8658025
    Abstract: 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: Grant
    Filed: March 1, 2011
    Date of Patent: February 25, 2014
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Glen E. Phillips, Simon R. Kelemen, Walter Weissman
  • Patent number: 8603325
    Abstract: 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: Grant
    Filed: March 1, 2011
    Date of Patent: December 10, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, Glen E. Phillips, Simon R. Kelemen, Walter Weissman
  • Patent number: 8585890
    Abstract: 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: Grant
    Filed: March 28, 2008
    Date of Patent: November 19, 2013
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Guoqing Wang, Lijun Zhang, Zhiguo Du, Shuo Chen, Zhaobin Zhang, Cong Zhou, Xianfeng Zhou
  • Publication number: 20130261340
    Abstract: 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: Application
    Filed: March 13, 2013
    Publication date: October 3, 2013
    Inventor: Marshall Medoff
  • Patent number: 8496805
    Abstract: 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: Grant
    Filed: July 1, 2010
    Date of Patent: July 30, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Craig Y. Sabottke, Fritz A. Bernatz, Eric W. Fryatt, Christopher P. Eppig, Jordan K. Lambert
  • Patent number: 8491779
    Abstract: 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: Grant
    Filed: June 21, 2010
    Date of Patent: July 23, 2013
    Assignee: Saudi Arabian Oil Company
    Inventors: Raheel Shafi, Esam Z. Hamad, Stephane Cyrille Kressmann, Julio Hasselmeyer Moses
  • Patent number: 8445547
    Abstract: 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: Grant
    Filed: August 11, 2009
    Date of Patent: May 21, 2013
    Inventors: Alfred Jorgensen, Roger J. Swenson
  • Patent number: 8435386
    Abstract: 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: Grant
    Filed: September 30, 2011
    Date of Patent: May 7, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, David B. Spicer, George Stephens
  • Patent number: 8431015
    Abstract: 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: Grant
    Filed: May 19, 2010
    Date of Patent: April 30, 2013
    Assignee: ConocoPhillips Company
    Inventors: Dwijen K. Banerjee, Kenneth W. Smith
  • Patent number: 8420875
    Abstract: 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: Grant
    Filed: March 23, 2012
    Date of Patent: April 16, 2013
    Assignee: Rational Energies, LLC
    Inventors: Ian Mackay, Karl Greden
  • Patent number: 8398846
    Abstract: 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: Grant
    Filed: January 20, 2006
    Date of Patent: March 19, 2013
    Assignee: Technip France
    Inventors: Jacobus Arie Schilleman Overwater, Johannes Pieter Van Der Eijk
  • Patent number: 8309363
    Abstract: 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: Grant
    Filed: May 11, 2009
    Date of Patent: November 13, 2012
    Assignee: Rolls-Royce PLC
    Inventors: John S Askins, Timothy A Shepherd
  • Patent number: 8282814
    Abstract: 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: Grant
    Filed: March 31, 2009
    Date of Patent: October 9, 2012
    Assignee: UOP LLC
    Inventor: Kenneth D. Peters
  • Patent number: 8277639
    Abstract: 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: Grant
    Filed: September 20, 2005
    Date of Patent: October 2, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John Scott Buchanan, Paul F. Keusenkothen, Stephen Harold Brown, Julian A. Wolfenbarger, James Earl Graham, James N. McCoy
  • Patent number: 8273936
    Abstract: 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: Grant
    Filed: November 22, 2010
    Date of Patent: September 25, 2012
    Assignee: Equistar Chemicals, LP
    Inventors: Robert S. Bridges, Steven T. Coleman
  • Patent number: 8231837
    Abstract: 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: Grant
    Filed: March 28, 2008
    Date of Patent: July 31, 2012
    Assignee: Kubota Corporation
    Inventor: Kunihide Hashimoto
  • Patent number: 8197668
    Abstract: 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: Grant
    Filed: July 9, 2009
    Date of Patent: June 12, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John D. Y. Ou, Glenn A. Heeter, Paul F. Keusenkothen, James N. McCoy, Judith Hey, legal representative
  • Patent number: 8173854
    Abstract: 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: Grant
    Filed: June 30, 2005
    Date of Patent: May 8, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James N. McCoy, Arthur R. DiNicolantonio, Richard C. Stell
  • Patent number: 8168061
    Abstract: 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: Grant
    Filed: July 7, 2009
    Date of Patent: May 1, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Martin L. Gorbaty, Bruce R. Cook, David T. Ferrughelli, Jason B. English, Steven S. Lowenthal
  • Patent number: 8163168
    Abstract: 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: Grant
    Filed: July 7, 2009
    Date of Patent: April 24, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Martin L. Gorbaty, Bruce R. Cook, David T. Ferrughelli, Jason B. English, Steven S. Lowenthal
  • Patent number: 8163170
    Abstract: 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: Grant
    Filed: December 2, 2008
    Date of Patent: April 24, 2012
    Assignee: Lummus Technology Inc.
    Inventors: Cor Franciscus van Egmond, Kandasamy Meenakshi Sundaram
  • Patent number: 8158840
    Abstract: 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: Grant
    Filed: June 3, 2008
    Date of Patent: April 17, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: David B. Spicer
  • Patent number: 8147676
    Abstract: 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: Grant
    Filed: October 21, 2005
    Date of Patent: April 3, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Michael Siskin, David T. Ferrughelli, Martin L. Gorbaty, Simon R. Kelemen, Leo D. Brown
  • Patent number: 8123931
    Abstract: 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: Grant
    Filed: May 23, 2008
    Date of Patent: February 28, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Jun-han Kang, Jong-hun Song, Jun-seon Choi, Byoung-gi Park, Chang-hoon Kang, Si-hyun Noh
  • Patent number: 8105482
    Abstract: 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: Grant
    Filed: April 7, 2000
    Date of Patent: January 31, 2012
    Assignee: Ivanhoe Energy, Inc.
    Inventors: Barry Freel, Robert G. Graham
  • Patent number: 8106248
    Abstract: 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: Grant
    Filed: May 15, 2008
    Date of Patent: January 31, 2012
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Paul F. Keusenkothen, Frank Hershkowitz
  • Patent number: 8105479
    Abstract: 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: Grant
    Filed: June 18, 2009
    Date of Patent: January 31, 2012
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: John D. Y. Ou, Glenn A. Heeter
  • Patent number: 8088345
    Abstract: 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: Grant
    Filed: September 21, 2005
    Date of Patent: January 3, 2012
    Assignee: Technip France S.A.S.
    Inventors: Colin G. Caro, Philip L. Birch, William Tallis
  • Patent number: 8083932
    Abstract: 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: Grant
    Filed: August 21, 2008
    Date of Patent: December 27, 2011
    Assignee: Shell Oil Company
    Inventors: Arthur James Baumgartner, Robert Lawrence Blackbourn, Danny Yuk Kwan Ngan
  • Patent number: 8057663
    Abstract: 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: Grant
    Filed: May 29, 2009
    Date of Patent: November 15, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, David B. Spicer, George Stephens
  • Patent number: 7988847
    Abstract: Embodiments of a nozzle reactor of the type useable to inject a first material feed stock and a second material feed stock to cause interaction between the first material feed stock and second material feed stock are described herein. According to one embodiment, the nozzle reactor includes a reactor body having a reactor body passage with an injection end and an ejection end. The nozzle reactor also includes a first material injector having a first material injection passage and being mounted in the nozzle reactor in material injecting communication with the injection end of the reactor body. The first material injection passage can have an enlarged volume injection section, an enlarged volume ejection section, and a reduced volume mid-section intermediate the enlarged volume injection section and the enlarged volume ejection section. The first material injection passage can also have a material injection end and a material ejection end in injecting communication with the reactor body passage.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: August 2, 2011
    Assignee: Marathon Oil Canada Corporation
    Inventors: Willem Duyvesteyn, Gordon R. Wicker
  • Patent number: 7964091
    Abstract: A cracking furnace having a firebox provided with cracking coils is described. The cracking coils have at least one inlet, at least one inlet section, at least one outlet and at least one outlet section, and burners, and the parts of the coils are shielded. A process for cracking hydrocarbon feeds, and making use of a furnace with the thermal shielding are also described.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: June 21, 2011
    Assignee: Technip France
    Inventors: Simon Barendregt, Matthew Bowers Pitcher, Jan den Uijl