Distillation Patents (Class 208/347)
  • Patent number: 10329223
    Abstract: The present invention provides a process for recovery of propylene and LPG from the fuel gas produced in FCC unit by contacting a heavier hydrocarbon feed with FCC catalyst. The process provides an energy efficient configuration for revamping an existing unit constrained on wet gas compressor capacity or for designing a new gas concentration unit to recover propylene and LPG recovery beyond 97 mole %. The process of the present invention provides an increase propylene and LPG recovery without loading wet gas compressor with marginal increase in liquid loads.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 25, 2019
    Assignee: RELIANCE INDUSTRIES LIMITED
    Inventors: Manoj Yadav, Asit Kumar Das, Sukumar Mandal, Amitkumar Parekh, Nilamkumar Limbasiya
  • Patent number: 9637426
    Abstract: Embodiments of apparatuses and methods for reforming of hydrocarbons including recovery of products are provided. In one example, a method comprises separating a reforming-zone effluent to form a net gas phase stream and a liquid phase hydrocarbon stream. The net gas phase stream is compressed, partially condensed and cooled to form a partially condensed, compressed net gas phase stream. The partially condensed, compressed net gas phase stream is separated to form an intermediate gas phase stream. The intermediate gas phase stream and the liquid phase hydrocarbon stream are combined to form a two-phase combined stream. The two-phase combined stream is cooled and separated to form an H2-rich stream and a cooled second intermediate liquid phase hydrocarbon stream that is enriched with C3/C4 hydrocarbons and further comprises C5+ hydrocarbons.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: May 2, 2017
    Assignee: UOP LLC
    Inventors: Robert Edison Tsai, Xin X. Zhu, Tokhanh Ngo, William Yanez, Lisa Lane
  • Patent number: 9302955
    Abstract: Methods and systems are provided for separating a selected xylene isomer. The method includes separating a feed stream including a plurality of aromatic hydrocarbons into a first stream including toluene and isomers of xylene, and a second stream including isomers of xylene. The method further includes separating the first stream into a third stream including toluene and a fourth stream including isomers of xylene. The method further includes combining the second stream and the third stream in an adsorptive separation unit including an adsorbent configured to adsorb the selected xylene isomer from the second stream. The third stream desorbs the selected xylene isomer to produce a fifth stream including the selected xylene isomer and toluene and a sixth stream including non-selected xylene isomers and toluene. Still further, the method includes separating the sixth stream into a seventh stream including the non-selected xylene isomers and the third stream including toluene.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 5, 2016
    Assignee: UOP LLC
    Inventors: Jason T. Corradi, Gregory Werba, Rajeswar Gattupalli
  • Patent number: 9170184
    Abstract: A method of regulating the viscosity of a mixture containing at least two components having different viscosities, which includes the steps of: (a) determination of the viscosity of the mixture via ultrasound measurements, (b) standardization of the viscosity determined to standard conditions, (c) comparison of the standardized viscosity with a prescribed intended value, and (d) adjustment of the viscosity of the mixture by increasing or decreasing the proportion of at least one component of the mixture, where the ultrasound measurements in step (a) are carried out at or in a line conveying the mixture or in a vessel.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 27, 2015
    Assignee: BASF SE
    Inventors: Kai Thiele, Bart Janssen, Wouter Ducheyne
  • Patent number: 8986537
    Abstract: Provided are multiple correlations for relationships between MI value for a brightstock extract and the distillation cut point temperature used for separation of the vacuum resid that is used to form the brightstock extract. Based on these correlations, a BSE having a desired MI value can be formed based on an adjustment of the distillation cut point temperature. A first correlation establishes a relationship between a fractional weight boiling temperature for a vacuum resid fraction and a distillation cut point temperature for separating the vacuum resid fraction from at least one distillate fraction in a feedstock. A second correlation establishes a relationship between a fractional weight boiling temperature for a brightstock extract derived from the vacuum resid fraction, and the fractional weight boiling temperature for the vacuum resid fraction. A third correlation has been established between the fractional weight boiling temperature for the brightstock extract and a mutagenicity index value.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 24, 2015
    Inventors: Cristina M. Sircar, Keith K. Aldous, James J. Freeman, Katy O. Goyak
  • Patent number: 8974660
    Abstract: There is provided a method for upgrading hydrocarbon compounds, in which hydrocarbon compounds synthesized in a Fisher-Tropsch synthesis reaction are fractionally distillated, and the fractionally distillated hydrocarbon compounds are hydrotreated to produce liquid fuel products. The method includes fractionally distilling heavy hydrocarbon compounds synthesized in the Fisher-Tropsch synthesis reaction as a liquid into a first middle distillate and a wax fraction, and fractionally distilling light hydrocarbon compounds synthesized in the Fisher-Tropsch synthesis reaction as a gas into a second middle distillate and a light gas fraction.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: March 10, 2015
    Assignees: Japan Oil, Gas and Metals National Corporation, Inpex Corporation, JX Nippon Oil & Energy Corporation, Japan Petroleum Exploration Co., Ltd., Cosmo Oil Co., Ltd., Nippon Steel Engineering Co., Ltd.
    Inventors: Yuichi Tanaka, Yasumasa Morita, Kenichi Kawazuishi
  • Patent number: 8951410
    Abstract: A crude oil feedstream is treated to remove or reduce the content of undesired metal components including nickel and/or vanadium by contacting the feedstream with one or more solid adsorbent materials selected from attapulgus clay, alumina, silica gel and activated carbon in a mixing vessel for a time that is sufficient to optimize the adsorption of the undesired metal components from the crude oil, subjecting the mixture to atmospheric flash distillation and then to vacuum flash distillation to recover presorted boiling ranges of products having a lowered content of the undesired metal components, and preferably regenerating at least a portion of the solid adsorbent material for reuse in the process.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: February 10, 2015
    Assignee: Saudi Arabian Oil Company
    Inventors: Omer Refa Koseoglu, Adnan Al-Hajji, Hendrik Muller
  • Publication number: 20150031922
    Abstract: The present invention describes a process and catalysts for the conversion of a light hydrocarbon and carbon dioxide input stream into high quality syngas with the subsequent conversion of the syngas into fuels or chemicals. In one aspect, the present invention provides an efficient, solid solution catalyst for the production of a carbon containing gas from carbon dioxide and light hydrocarbons. The catalyst comprises a single transition metal, and the transition metal is nickel.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 29, 2015
    Inventors: Robert Schuetzle, Dennis Schuetzle
  • Patent number: 8932451
    Abstract: Methods are provided for processing crude oil feeds with reduced or minimized energy usage, reduced or minimized numbers of processing steps, improved allocation of hydrogen, and reduced or minimized formation of low value products. The methods reduce or minimize the use of vacuum distillation, and in many aspects reduce or minimize the use of both atmospheric and vacuum distillation. The methods also reduce or minimize the use of coking and fluid catalytic cracking processes.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: January 13, 2015
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ramon A. Strauss, Stephen Harold Brown, Donald E. Stratton, Stefan Maria Willy Ceulemans
  • Publication number: 20140353209
    Abstract: One exemplary embodiment can be a process for treating a naphtha stream. The process may include providing the naphtha stream to a fractionation zone. The fractionation zone may include a fractionation column producing a first stream having one or more C5? hydrocarbons and a second stream withdrawn at a lower elevation on the fractionation column than the first stream and having one or more C5+ hydrocarbons, and sending at least a portion of the second stream to an aromatics complex for producing at least one of benzene, toluene, and para-xylene.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventor: Steven F. Zink
  • Publication number: 20140262963
    Abstract: A process and apparatus provides for blending a heavy naphtha stream with a diesel stream to increase the yield of diesel. The diesel stream is recovered separately from a kerosene stream to leave the kerosene stream undiminished. The blended diesel provides a valuable composition.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: UOP LLC
    Inventors: Douglas G. Stewart, James P. Glavin, Xin X. Zhu
  • Patent number: 8771479
    Abstract: Provided is a distillation column assembly combining two distillation columns used in a distillation process. The distillation column assembly is characterized in that a dividing wall column (DWC) that has one inflow point, three outflow points and an internal dividing wall and a typical distillation column that has two inflow points and two outflow points are sequentially connected to each other, and in that streams of the two outflow points of the DWC are introduced into the two inflow points of the typical distillation column. The distillation column assembly improves an existing process apparatus based on two distillation columns, so that it can be easily installed, has a high energy-saving effect, and can be applied to the case where a separation pressure difference and a utility temperature difference are great.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: July 8, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyu Lee, Jong Ku Lee, Joon Ho Shin
  • Patent number: 8709238
    Abstract: Crude tall oil is subjected to a distillation process that substantially removes impurities. The process produces a combined pitch and a distillate of free fatty acids and rosin acids from two vacuum columns. The distillate stream is amenable to further downstream hydroprocessing.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: April 29, 2014
    Assignee: UOP LLC
    Inventor: John A. Petri
  • Patent number: 8691078
    Abstract: An apparatus and process is disclosed for hydroprocessing hydrocarbon feed in a hydroprocessing unit and hydrotreating a second hydrocarbon. A warm separator sends vaporous hydrotreating effluent to be flashed with liquid hydroprocessing effluent to produce a vapor flash overhead that can be recycled to the hydrotreating unit to provide hydrogen requirements.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: April 8, 2014
    Assignee: UOP LLC
    Inventors: Andrew P. Wieber, Joao J. da Silva Ferreira Alves
  • Patent number: 8685212
    Abstract: A start-up method of a fractionator which fractionally distills FT synthesized hydrocarbons produced by the Fischer-Tropsch synthesis reaction, the method includes: discharging light FT synthesized hydrocarbons which exist in a gaseous state in an FT reactor performing the Fischer-Tropsch synthesis reaction from the FT reactor to the outside; cooling down the light FT synthesized hydrocarbons discharged from the FT reactor for liquefaction; supplying the liquefied light FT synthesized hydrocarbons to the fractionator; and heating the light FT synthesized hydrocarbons and circulating the light FT synthesized hydrocarbons to the fractionator.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: April 1, 2014
    Assignees: JX Nippon Oil & Energy Corporation, Japan Oil, Gas and Metals National Corporation, Inpex Corporation, Japan Petroleum Exploration Co., Ltd., Cosmo Oil Co., Ltd., Nippon Steel Engineering Co., Ltd.
    Inventors: Yuichi Tanaka, Hidekatsu Honda
  • Publication number: 20140076776
    Abstract: Methods are provided for qualifying jet fuel fractions that are derived at least in part from pre-refined crude oil sources. The methods allow for determination of the stability of a jet fuel product over time by using an accelerated aging test. The methods are beneficial for verifying the stability of a jet fuel fraction that includes a portion derived from a pre-refined crude oil.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 20, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Roger G. GAUGHAN, Robert T. PETERS, Timothy D. SUTER, Bryan M. KNICKERBOCKER
  • Patent number: 8642827
    Abstract: Processes for the separation of a hydrocarbon-containing feed streams are described herein.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: February 4, 2014
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Bernard Van Der Schrick
  • Publication number: 20140008272
    Abstract: The present invention relates to a method for the energy-efficient and environmentally friendly obtention of light oil and/or fuels on the basis of crude bitumen from oil shales and/or oil sands (1) by thermal use of carbonaceous residues which are obtained during this process, whereby the carbonaceous residues are converted at temperatures below 1800° C. into sulfur-poor, gaseous cleavage products (31) by sub-stoichiometric oxidation with oxygen-containing gas in an updraft gasifier (19) which is operated with a bulk material moving bed while alkaline substances are added. The cleavage products are then converted into sensible heat by hyperstoichiometric oxidation and are used for the production of heated aqueous process media (2) for physically comminuting the oil sands and/or oil shales (1) and/or for separating of the crude bitumen (7) from the rock material and/or as process heat for the thermal fractioning (12) of the crude bitumen (7).
    Type: Application
    Filed: March 16, 2012
    Publication date: January 9, 2014
    Applicant: ECOLOOP GMBH
    Inventors: Thomas Stumpf, Ulf Boenkendorf, Leonhard Baumann, Roland Möller
  • Patent number: 8618344
    Abstract: A process is disclosed for enhanced recovery of propylene and LPG from the fuel gas produced in Fluid catalytic cracking unit by contacting a heavier hydrocarbon feed with FCC catalyst. In the conventional process, the product mixture from FCC main column overhead comprising naphtha, LPG and fuel gas, are first condensed and gravity separated to produce unstabilized naphtha, which is subsequently used in the absorber to absorb propylene and LPG from fuel gas. However, the recovery of propylene beyond 97 wt % is difficult in this process since unstabilized naphtha already contains propylene of 5 mol % or above. In the present invention, C4 and lighter components from unstabilized naphtha are first stripped off in a separate column to obtain a liquid fraction almost free from propylene (<0.1 mol %) and other LPG components. Such a stripped liquid fraction, after cooling to 20° C. to 30° C.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: December 31, 2013
    Assignee: Reliance Industries Limited
    Inventors: Manoj Yadav, Sukumar Mandal, Asit Kumar Das, Yogesh Gupta, Minaz Makhania, Gobind Tulsi, Shailendra Arora, Shubhangi Jaguste
  • Patent number: 8608940
    Abstract: A process is disclosed for hydroprocessing two hydrocarbon streams at two different pressures. A hydrogen stream is compressed and split. A first split compressed stream is further compressed to feed a first hydroprocessing unit that requires higher pressure for operation. A second split compressed stream is fed to a second hydroprocessing unit that requires lower pressure. Recycle hydrogen from the second hydroprocessing unit is recycled back to the compression section.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventor: Andrew P. Wieber
  • Patent number: 8603300
    Abstract: A method for fractionating a fuel includes heating the fuel and flowing it through hollow superhydrophobic membranes in a membrane module. Vapor from the fuel permeates the hydrophobic membranes and enters a distillate collection chamber, producing distilled fuel and residual fuel. The residual fuel is removed from the module and cooled. The cooled residual fuel is flowed through hollow tubes in the module and the distilled fuel is removed from the distillate collection chamber. Burning the distilled fuel reduces engine emissions. A fuel fractionation system includes a distillate collection chamber, hollow superhydrophobic membranes, hollow tubes and a distillate outlet. The hollow superhydrophobic membranes receive heated fuel and allow vapor from the heated fuel to permeate the membranes and enter the distillate collection chamber. The hollow tubes receive cooled residual fuel and are positioned to allow vapor in the distillate collection chamber to condense on outer surfaces of the hollow tubes.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: December 10, 2013
    Assignee: United Technologies Corporation
    Inventors: Zidu Ma, Joseph J. Sangiovanni, Zissis A. Dardas, Meredith B. Colket, III
  • Patent number: 8591726
    Abstract: A divided wall column can allow for fractionation of multiple streams while maintaining separate product qualities. Effluents from multiple stages of a reaction system can be processed in a single divided wall column. The divided wall column can produce multiple cuts from each separated area, as well as at least one output from a common area. At least one reaction stage can advantageously have a continuous liquid phase environment.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: November 26, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Benjamin S. Umansky, Richard C. Dougherty, Michael A. Hayes, William E. Lewis
  • Patent number: 8518245
    Abstract: One exemplary embodiment can be a process for separating a plurality of naphtha components. The process can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The process may provide at least four product streams.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 27, 2013
    Assignee: UOP LLC
    Inventors: Michael A. Schultz, Xin X. Zhu
  • Patent number: 8512550
    Abstract: A method for the determination of optimal pipestill operation comprising the steps of: feeding a crude oil feedstream into the pipestill wherein the crude oil feedstream is separated into boiling range fractions, performing a virtual assay of the crude oil feedstream to determine predicted boiling range fraction yields, comparing the predicted boiling range fraction yields with the actual boiling range fraction yields from the pipestill to determine differences between these fraction yields, relating the difference between the fraction yields with the operation of the pipestill.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: August 20, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Arthur H. Rose, James M. Brown, Gregory M. Martin
  • Patent number: 8466329
    Abstract: A method of preparing an FT derived diesel composition wherein the FT derived diesel composition has a good response to CFPP improving additives, which good response is achieved by addition of one or more of a FT recycle stream, a crude-oil derived diesel fuel, and a HGO (Heavy Gas Oil) to an FT derived diesel thereby to improve the CFPP improving additive response thereof.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: June 18, 2013
    Assignee: Sasol Technology (Pty) Ltd
    Inventors: Petrus Nicolaas Johannes Roets, Delanie Lamprecht
  • Patent number: 8444718
    Abstract: A process to prepare an aviation fuel and an automotive gas oil from a source of mineral derived gas oil is provided. From the mineral derived gas oil a low boiling fraction is isolated for use as an aviation fuel or as an aviation fuel component and the remaining part of the mineral derived gas oil is blended with a Fischer-Tropsch derived kerosene fraction and/or a Fischer-Tropsch derived gas oil fraction to obtain a blend suited for use as at least part of an automotive gas oil.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: May 21, 2013
    Assignee: Shell Oil Company
    Inventors: Richard Hugh Clark, Richard Michael Jory, Richard James Stradling, Robert Wilfred Matthews Wardle
  • Patent number: 8414763
    Abstract: A process is disclosed for recovering product from catalytically converted product streams. Gaseous unstabilized naphtha from an overhead receiver from a main fractionation column is compressed in a compressor. Liquid unstabilized naphtha from the overhead receiver and liquid naphtha fraction from the compressor are sent to a naphtha splitter column upstream of a primary absorber. Consequently, less naphtha is circulated in the gas recovery system.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: April 9, 2013
    Assignee: UOP LLC
    Inventors: Joao Jorge da Silva Ferreira Alves, Saadet Ulas Acikgoz, Xin X. Zhu, Laura E. Leonard
  • Patent number: 8323456
    Abstract: A process and system for removing bound water from bio-oil by azeotropic distillation. The process includes combining a bound-water-containing bio-oil with an azeotrope agent and subjecting the resulting treated bio-oil to azeotropic distillation under reduced pressure. The azeotropic distillation removes a substantial portion of the bound water from the bio-oil, thus producing a water-depleted bio-oil that is less corrosive, more stable, and more readily miscible with hydrocarbons.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: December 4, 2012
    Assignee: KiOR, Inc.
    Inventors: Ronny W. Lin, Robert Bartek
  • Publication number: 20120298560
    Abstract: One exemplary embodiment can be a process for separating a plurality of naphtha components. The process can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The process may provide at least four product streams.
    Type: Application
    Filed: August 7, 2012
    Publication date: November 29, 2012
    Applicant: UOP LLC
    Inventors: Michael A. Schultz, Xin X. Zhu
  • Publication number: 20120261308
    Abstract: Systems and methods for refining conventional crude and heavy, corrosive, contaminant-laden carbonaceous crude (Opportunity Crude) in partially or totally separated streams or trains.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 18, 2012
    Applicant: Bechtel Hydrocarbon Technology Solutions, Inc.
    Inventors: Benjamin Klein, Odette Eng
  • Patent number: 8246816
    Abstract: One exemplary embodiment can be a separation zone for separating a plurality of naphtha components. The separation zone can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The separation zone may provide at least four product streams.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: August 21, 2012
    Assignee: UOP LLC
    Inventors: Michael A. Schultz, Xin X. Zhu
  • Patent number: 8237004
    Abstract: A process for making products with low hydrogen halide, comprising: a) stripping or distilling an effluent from a reactor into a first fraction having an amount of hydrogen halide, and a second fraction having a reduced amount of hydrogen halide; wherein the reactor comprises: an ionic liquid catalyst having a metal halide, and a hydrogen halide or an organic halide; and b) recovering one or more product streams, from the second fraction, having less than 25 wppm hydrogen halide. In one embodiment the ionic liquid catalyst has metal halide; and the recovering recovers propane, n-butane, and alkylate gasoline having less than 25 wppm hydrogen halide. In another embodiment the recovering uses a distillation column having poor corrosion resistance to hydrogen halide; and the distillation column does not exhibit corrosion. There is also provided an alkylate gasoline having less than 5 wppm hydrogen halide, a high RON, and low RVP.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: August 7, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Timken, Christine Phillips, Robert F. Cleverdon
  • Patent number: 8142648
    Abstract: Controlled RVP C5+ products are produced from feed gas in configurations and methods in which a heavier portion of the feed gas is fractionated into several streams having distinct RVP and in which a C5+ stream is produced from the lighter portion of the feed gas. The so formed streams are then combined to produce C5+ products with controlled RVP. Thus, RVP control is achieved without the need for external products for blending process streams derived from the feed gas.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: March 27, 2012
    Assignee: Fluor Technologies Corporation
    Inventor: John Mak
  • Patent number: 8088275
    Abstract: A process treats a fluid stream of used fracturing fluid containing contaminants and forms a reconditioned fluid stream. Contaminants are removed by the combination of distillation, electrostatic agglomeration, decanting, and filtration or by distillation and optional filtering. Optionally, in each case, the filtered fluid stream is treated in a clay tower to remove residual contaminants.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: January 3, 2012
    Assignee: Gibson Energy ULC
    Inventors: Chad Randal, Larry Medhurst, Doug Hildebrandt
  • Patent number: 8083930
    Abstract: A process is described for producing deasphalted steam cracker tar comprising feeding steam cracker tar to a vacuum pipestill (VPS) including a flash zone separated from a zone comprising trays by at least one annular entrainment ring and obtaining as an overheads a deasphalted tar product and as a bottoms an asphaltenic heavy tar product. Also according to the invention, there is a system for the upgrading of tar comprising said VPS with at least one annular entrainment ring.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: December 27, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James N. McCoy, Paul F. Keusenkothen, Alok Srivastava, James E Graham
  • Patent number: 7993435
    Abstract: A process for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, flashing the mixture to form a vapor phase and a liquid phase which collect as bottoms and removing the liquid phase, separating and cracking the vapor phase, and cooling the product effluent, wherein the bottoms are maintained under conditions to effect at least partial visbreaking. The visbroken bottoms may be steam stripped to recover the visbroken molecules while avoiding entrainment of the bottoms liquid. An apparatus for carrying out the process is also provided.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: August 9, 2011
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, George J. Balinsky, James N. McCoy, Paul F. Keusenkothen
  • Patent number: 7982086
    Abstract: A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction zone containing a hydroisomerization catalyst operating at a first pressure and concurrently: (i) converting at least a portion of the 1-butene to 2-butene, and (ii) separating isobutene from the 2-butene; recovering a first overheads fraction comprising isobutene from the first column; recovering a first bottoms fraction comprising isobutene, 2-butene, and unreacted 1-butene from the first column; introducing the first bottoms fraction into a top portion of a second column comprising a fractionation column operating at a second pressure lower than the first pressure; separating the first bottoms into a second overheads fraction comprising isobutene and 1-butene and a second bottoms fraction comprising 2-butene; compressing the second overheads fraction; and introducing the compressed second overheads fraction to a lo
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: July 19, 2011
    Assignee: Catalytic Distillation Technologies
    Inventor: Martinus J. Almering
  • Patent number: 7976699
    Abstract: A method and apparatus is provided for distilling and processing chemicals. The apparatus is particularly suited for processing and distilling difficult to distill compounds, and is capable of producing diesel fuel and other products from used oil at a quality level similar to that of products produced from virgin crude oil.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: July 12, 2011
    Inventor: Michael L. Kesler
  • Patent number: 7973209
    Abstract: Processing schemes and arrangements for the catalytic cracking of a heavy hydrocarbon feedstock and obtaining light olefins substantially free of carbon dioxide via amine treatment and employing fractionation processing are provided.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: July 5, 2011
    Assignee: UOP LLC
    Inventors: Gavin P. Towler, John P. Brady, William J. Lechnick, Michael A. Schultz
  • Patent number: 7820033
    Abstract: A process for increasing ethylene yield in a cracked hydrocarbon is provided. A hydrocarbon feed stream comprising at least 90% by weight of one or more C4-C10 hydrocarbons can be heated to provide an effluent stream comprising at least 10% by weight propylene. The effluent stream can be selectively separated to provide a first stream comprising heavy naphtha, light cycle oil, slurry oil, or any combination thereof and a second stream comprising one or more C4-C10 hydrocarbons. The second stream can be treated to remove oxygenates, acid gases, water, or any combination thereof to provide a third stream comprising the one or more C4-C10 hydrocarbons. The third stream can be selectively separated to provide a product stream comprising at least 30% by weight propylene. At least a portion of the product stream can be recycled to the hydrocarbon feed stream to increase ethylene yield in the effluent stream.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: October 26, 2010
    Assignee: Kellogg Brown & Root LLC
    Inventors: Curtis N. Eng, Yonglin Yang
  • Patent number: 7807047
    Abstract: A process treats a fluid stream of used fracturing fluid containing contaminants and forms a reconditioned fluid stream. Contaminants are removed by the combination of distillation, electrostatic agglomeration, decanting, and filtration. Optionally, the filtered fluid stream is treated in a clay tower to remove residual contaminants.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: October 5, 2010
    Assignee: Gibson Energy ULC
    Inventors: Chad Randal, Larry Medhurst, Doug Hildebrandt
  • Patent number: 7691239
    Abstract: A differential vapor pressure (DYP) cell is disposed in a divided wall column that receives a feed comprising a first, second, and third component. A separation section on the feed side of the divided wall column separates the feed in a vapor comprising the first and second component, and a liquid comprising the second and third component. The DYP cell is disposed in the divided wall column at a level below the point where the feed enters the column, and the DYP cell measures the concentration of the first component.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: April 6, 2010
    Assignee: Fluor Technologies Corporation
    Inventors: Henry Kister, Walt Stupin
  • Patent number: 7641870
    Abstract: Hydrocarbon feedstock containing resid is cracked by a process comprising: (a) heating the hydrocarbon feedstock; (b) mixing the heated hydrocarbon feedstock with steam and optionally water to form a mixture stream; (c) introducing the mixture stream to a flash/separation apparatus to form i) a vapor phase at its dew point which partially cracks and loses/or heat causing a temperature decrease and partial condensation of the vapor phase in the absence of added heat to provide coke precursors existing as uncoalesced condensate, and ii) a liquid phase; (d) removing the vapor phase as overhead and the liquid phase as bottoms from the flash/separation apparatus; (e) treating the overhead by contacting with a hydrocarbon-containing nucleating liquid substantially free of resid and comprising components boiling at a temperature of at least about 260° C. (500° F.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: January 5, 2010
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, Nicholas G. Vidonic
  • Patent number: 7582204
    Abstract: The invention relates to a process, including removal of resins, for the treatment of a hydrocarbon charge, at least 80% of the compounds of which have a boiling point which is above or equal to 340° C., in which process: the charge is sent to a fractionation stage during which the recovery takes place of at least one heavy fraction and at least one light fraction, at least some of the heavy fraction is sent to an extraction stage during which resins contained in said heavy fraction are extracted, and a purified fraction is recovered, a mixture is made which comprises at least part of the purified fraction which was obtained in the extraction stage and at least one light fraction which was obtained in the fractionation stage, and the mixture thus obtained is sent to a cracking stage.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: September 1, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Christophe Gueret, Raphaël Huyghe, Hugues Dulot, Patrick Euzen
  • Patent number: 7575729
    Abstract: A fuel reforming apparatus includes a reforming catalyst, a filtering member, a raw material supply flow passage and a processed gas flow passage. The filtering member has a plurality of cells. A reforming catalyst is carried on a surface of a partition on the side of the processed gas flow passage. If raw gas including hydrocarbon fuel is supplied to the fuel reforming apparatus and filtered by the filtering member, soot included in the raw gas is trapped by gaps in the partition, and the hydrocarbon fuel is reformed into reformed gas including hydrogen and carbon monoxide on the reforming catalyst. By increasing the amount of air supplied from a blower at intervals of time, the soot trapped by the partition is removed by combustion.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: August 18, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Koichi Numata, Satoshi Iguchi
  • Patent number: 7553404
    Abstract: A process for preparing at least two compositions suitable for production of gasoline, which process comprises: fractionating an alkylation product to produce a first cut boiling in the range 90-106° C., a second cut boiling at temperature lower than said first cut, and a third cut boiling at a temperature above said first Cut, blending at least 2% by volume of said first cut with at least 5% of a component selected from at least one of a paraffin, an aromatic hydrocarbon and an olefinic hydrocarbon, said component having a boiling point of 60-160° C., wherein not more than 5% of the total composition of hydrocarbon has a boiling point of more than 160° C.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: June 30, 2009
    Assignee: BP Oil International Limited
    Inventors: Alisdair Quentin Clark, Philip Howard, Anthony George William Parker
  • Patent number: 7527725
    Abstract: A method is disclosed for upgrading drip oil comprising subjecting the drip oil to multiple distillation steps to form a stream rich in aromatics and a separate stream rich in dicyclopentadiene.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: May 5, 2009
    Assignees: Equistar Chemicals, LP, Lyondell Chemical Technology, L.P.
    Inventors: Krishnan Viswanathan, Lau S. Yang, Ellen S. Lenz, David W. Leyshon
  • Publication number: 20080245700
    Abstract: The present invention is directed to a crude product composition. The crude product composition comprises hydrocarbons that have a boiling range distribution between about 30° C. and 538° C. (1,000° F.) at 0.101 MPa, The hydrocarbons comprise iso-paraffins and n-paraffins, where the weight ratio of the iso-paraffins to n-paraffins is at most 1.4.
    Type: Application
    Filed: May 12, 2008
    Publication date: October 9, 2008
    Inventors: Scott Lee Wellington, Stanley Nemec Milam
  • Publication number: 20080245701
    Abstract: The present invention is directed to a crude product composition. The crude product has, per gram of crude product: at least 0.001 grams of naphtha, the naphtha having an octane number of at least 70, and the naphtha having at most 0.15 grams of olefins per gram of naphtha; at least 0.001 grams of kerosene, the kerosene having at least 0.2 grams of aromatics per gram of kerosene and a freezing point at a temperature of at most ?30° C.; and at most 0.05 grams of residue.
    Type: Application
    Filed: May 12, 2008
    Publication date: October 9, 2008
    Inventors: Scott Lee Wellington, Stanley Nemec Milam
  • Patent number: 7393992
    Abstract: Sudstituted the abstract with a new abstract as follows: The invention relates to a continuous process for separation a mixture of hydrocarbons which has beenobtained by extractive distillation of C4 fraction useing a selective solvent and the hydrocarbons from the fraction C4 which are more readily soluble in the selective solvent than are the butanes and the butenes. The mixture is fed into a first distillation column in which it is separated into a steam which is taken off at the top and comprises 1,3-butadiene, propyne, possibly further low boilers and possibly water and a bottom stream comprising 1,3-butadiene, 1,2-butadiene, acetylenes and possibly further high boilers, with the proportion of 1,3-butadiene in the bottom stream from the distillatin column being regulated in such a way that it is at least sufficiently high to dilute the acetylenes to outside the range in which there is a risk of spontaneous decomposition.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: July 1, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Hill, Klaus Kindler, Bernd Heida