With Reforming Patents (Class 208/51)
  • Patent number: 8940950
    Abstract: The process relates to the use of any naphtha-range stream containing a portion of C8+ aromatics combined with benzene, toluene, and other non-aromatics in the same boiling range to produce toluene. By feeding the A8+ containing stream to a dealkylation/transalkylation/cracking reactor to increase the concentration of toluene in the stream, a more suitable feedstock for the methylation reaction can be produced. This stream can be obtained from a variety of sources, including the pygas stream from a steam cracker, “cat naphtha” from a fluid catalytic cracker, or the heavier portion of reformate.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: January 27, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Justin M. Ellrich, Robert D. Strack, John W. Rebeck, Allen S. Gawlik, Larry L. Iaccino, Glenn C. Wood, Stephen H. Brown, Timothy Paul Bender
  • Patent number: 8936715
    Abstract: Disclosed is a method of manufacturing high quality lube base oil (Group III) from unconverted oil having various properties obtained in a variety of hydrocrackers using improved catalytic dewaxing and hydrofinishing, the method including producing unconverted oil of at least one kind in the same or different hydrocrackers; subjecting the unconverted oil to vacuum distillation; supplying all or part of the distillate fractions to a catalytic dewaxing reactor; supplying the dewaxed oil fraction to a hydrofinishing reactor; and stripping the hydrofinished light oil fraction, wherein make-up hydrogen is supplied upstream of the hydrofinishing reactor to increase hydrogen partial pressure, thereby enabling high quality base oil to be manufactured at high yield under optimal process conditions using unconverted oil produced by hydrocracking under various conditions.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: January 20, 2015
    Assignee: SK Innovation Co., Ltd.
    Inventors: Kyung Seok Noh, Yong Woon Kim, Gyung Rok Kim, Jae Wook Ryu, Sun Hyuk Bae, Tae Young Jang, Sun Choi, Seung Hoon Oh
  • Patent number: 8372264
    Abstract: Heavy gas oil components, coking process recycle, and heavier hydrocarbons in the delayed coking process are cracked in the coking vessel by injecting a catalytic additive into the vapors above the gas/liquid-solid interface in the coke drum during the coking cycle. The additive comprises cracking catalyst(s) and quenching agent(s), alone or in combination with seeding agent(s), excess reactant(s), carrier fluid(s), or any combination thereof to modify reaction kinetics to preferentially crack these components. The quenching effect of the additive can be effectively used to condense the highest boiling point compounds of the traditional recycle onto the catalyst(s), thereby focusing the catalyst exposure to these target reactants. Exemplary embodiments of the present invention can also provide methods to (1) reduce coke production, (2) reduce fuel gas production, and (3) increase liquids production.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: February 12, 2013
    Inventor: Roger G. Etter
  • Patent number: 8361310
    Abstract: Gas oil components, coking process recycle, and heavier hydrocarbons are cracked or coked in the coking vessel by injecting an additive into the vapors of traditional coking processes 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 components. Modifications of the catalysts in the additive improve performance for certain desired outcomes. One exemplary embodiment of the present invention uses the olefin production capabilities from newly developed catalysts to increase the production of light olefins (e.g. ethylene, propylenes, butylenes, pentenes) for alkylation process unit feed, the production of oxygenates, and petrochemical feedstocks, such as plastics manufacture. Another exemplary embodiment of the present invention is the use of the olefin production from newly developed catalysts to improve the coker naphtha quality.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: January 29, 2013
    Inventors: Roger G. Etter, Augusto Quinones
  • Publication number: 20120125813
    Abstract: A process for cracking a heavy hydrocarbon feed comprising a vaporization step, a coking step, a hydroprocessing step, and a steam cracking step 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 counter-current steam produce a second vapor stream and a second liquid stream. The first vapor stream and the second vapor stream are cracked in the radiant section of the steam cracker to produce a cracked effluent. The second liquid stream is distilled in a fractionator to produce an overhead stream, a side draw, and a bottoms stream. The side draw is reacted with hydrogen in the presence of a catalyst to produce a hydroprocessed product. The hydroprocessed product is separated into a gas product and a liquid product. The liquid product is fed to the vaporization unit.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 24, 2012
    Inventors: Robert S. Bridges, Sellamuthu G. Chellappan
  • Publication number: 20120125812
    Abstract: A process for cracking a heavy hydrocarbon feed comprising a vaporization step, a hydroprocessing step, and a steam cracking step 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 counter-current steam produce a second vapor stream and a second liquid stream. The first vapor stream and the second vapor stream are cracked in the radiant section of the steam cracker to produce a cracked effluent. The second liquid stream reacted with hydrogen in the presence of a catalyst to produce a hydroprocessed product. A liquid hydroprocessed product is fed to the vaporization unit.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 24, 2012
    Inventors: Robert S. Bridges, Sellamuthu G. Chellappan
  • Patent number: 8173010
    Abstract: The invention relates to materials used as electrodes and/or catalysts, as well as methods associated with the same. The materials may comprise an alloy or intermetallic compound of a transition metal (e.g., Ni) and a metal additive (e.g., Sn). The transition metal and additive are selected to provide improved electrode and/or catalytic performance. For example, the materials of the invention may have a high catalytic activity, while being less susceptible to coking than certain conventional electrode/catalytic materials. These performance advantages can simplify the equipment used in certain applications, as well as reducing energy and capital requirements. Furthermore, the materials may be manufactured using traditional ceramic processing methods, without the need for complex, unconventional fabrication techniques. The materials are particularly suitable for use in fuel cells (e.g., SOFCs electrodes) and in reactions that use or produce synthesis gas.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: May 8, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Jackie Y. Ying, Steven E. Weiss
  • Publication number: 20120067773
    Abstract: A process and system for the conversion of biomass under high severity in the presence of a catalyst to produce a bio-oil, olefins, methane, and carbon monoxide (CO). The methane and/or CO can be used to generate hydrogen and the generated hydrogen can be used for hydrotreating the bio-oil. Additionally, or alternatively, a syngas stream, a carbon dioxide-rich stream, and/or a methane-rich stream can be recovered for use in the bio-oil production process and/or for use in a conventional petroleum refinery and/or petrochemical plant.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 22, 2012
    Applicant: KIOR, INC.
    Inventor: Andre Ditsch
  • Publication number: 20100193400
    Abstract: Disclosed herein is a method of producing feedstock of high-quality lube based oil by producing coker gas oil (CGO) from vacuum residue (VR) or a mixture (VR/AR) of atmospheric residue (AR) and vacuum residue (VR), performing a hydrotreating process and a hydrocracking process by mixing the coker gas oil (CGO) with vacuum gas oil (VGO) to form unconverted oil (UCO), and then recycling the unconverted oil. The method of producing feedstock of high-quality lube based oil is advantageous in that feedstock of high-quality lube based oil can be more economically and efficiently produced using cheap coker gas oil (CGO), which is hard to treat.
    Type: Application
    Filed: April 18, 2008
    Publication date: August 5, 2010
    Applicant: SK LUBRICANTS CO., LTD.
    Inventors: Gyung Rok Kim, Chang Kuk Kim, Jae Wook Ryu, Jee Sun Shin, Sam Ryong Park
  • Patent number: 7318845
    Abstract: A distillate fuel steam reformer system in which a fuel feed stream is first separated into two process streams: an aliphatics-rich, sulfur-depleted gas stream, and an aromatics- and sulfur-rich liquid residue stream. The aliphatics-rich gas stream is desulfurized, mixed with steam, and converted in a reforming reactor to a hydrogen-rich product stream. The aromatics-rich residue stream is mixed with air and combusted to provide heat necessary for endothermic process operations. Reducing the amounts of sulfur and aromatic hydrocarbons directed to desulfurzation and reforming operations minimizes the size and weight of the overall apparatus. The process of the invention is well suited to the use of microchannel apparatuses for heat exchangers, reactors, and other system components, which may be assembled in slab configuration, further reducing system size and weight.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: January 15, 2008
    Assignee: Applied Research Associates, Inc.
    Inventors: Aly H. Shaaban, Timothy J. Campbell
  • Patent number: 5481052
    Abstract: This invention relates to a process for cracking waste polymers in a fluidized bed reactor to produce vaporous products comprising primary products which can be further processed, eg in a steam cracker to produce olefins, characterized in that the vaporous products are treated to generate a primary product substantially free of a high molecular weight tail having molecular weights >700 prior to further processing. The removal of the high molecular weight tail minimizes fouling and prolongs the lifetime of the reactors used for further processing.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: January 2, 1996
    Assignee: BP Chemicals Limited
    Inventors: Stephen Hardman, Stephen A. Leng, David C. Wilson
  • Patent number: 5437782
    Abstract: The present invention relates to an integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater and the gasifier. A separate stream of hot solids from the gasifier is passed to a satellite reactor. A light paraffin stream is introduced into directly into this stream of hot solids passing to the satellite reactor or into the satellite reactor. The hot particles act to catalyze the dehydrogenation of the paraffins to olefins.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: August 1, 1995
    Assignee: Exxon Research and Engineering Company
    Inventors: Michael C. Kerby, Roby Bearden, Jr., Stephen M. Davis
  • Patent number: 5435905
    Abstract: An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater and the gasifier. A separate stream of hot solids from the gasifier is passed to the scrubbing zone after first being reduced in temperature by introduction of an effective amount of diluent, such as steam. A light paraffin stream is introduced into this stream of hot solids between the point where the diluent is added and the scrubbing zone. The hot particles act to catalyze the dehydrogenation of paraffins to olefins.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: July 25, 1995
    Assignee: Exxon Research and Engineering Company
    Inventors: Stephen M. Davis, Michael C. Kerby, Roby Bearden, Jr.
  • Patent number: 5430217
    Abstract: An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater and the gasifier. A separate stream of hot solids from the gasifier is passed to the scrubbing zone or to a satellite fluidized reactor. A first stream containing an effective amount of C.sub.1 to C.sub.2 paraffins is introduced into this stream of hot solids between the point where the diluent is added and the scrubbing zone. The hot particles act to catalyze the dehydrogenation of paraffins to olefins. A second stream containing C.sub.3 to C.sub.10 paraffins is introduced downstream of the introduction of said first stream.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: July 4, 1995
    Assignee: Exxon Research & Engineering Co.
    Inventors: Roby Bearden, Jr., Michael C. Kerby, Stephen M. Davis
  • Patent number: 5430216
    Abstract: An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater and the gasifier. A separate stream of hot solids from the gasifier is diluted with hot solids from the heater then passed to the scrubbing zone of the coker reactor. A light paraffin stream is introduced into this stream of hot solids between the point where the heater solids are introduced and the scrubbing zone. The hot particles act to catalyze the dehydrogenation of the paraffins to olefins.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: July 4, 1995
    Assignee: Exxon Research & Engineering Co.
    Inventors: Michael C. Kerby, Roby Bearden, Jr., Stephen M. Davis
  • Patent number: 5362380
    Abstract: In a fluid catalytic cracking (FCC) process coked catalyst is partially regenerated by contacting with high temperature steam in the absence of oxygen. About 10 to 30% of the coke is converted to a steam reformed gas comprising hydrogen, methane and carbon dioxide. The off-gas may be subjected to cryogenic separation to yield a hydrogen-rich gas.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: November 8, 1994
    Assignee: Texaco Inc.
    Inventors: Hsu-Hui Hsing, James Mudra, IV
  • Patent number: 4818368
    Abstract: A process for treating a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component to produce a hydrogenated distillable hydrocarbonaceous product while minimizing thermal degradation of the hydrocarbonaceous stream which process comprises the steps of: (a) contacting the hydrocarbonaceous stream with a first hydrogen-rich gaseous stream having a temperature greater than the hydrocarbonaceous stream in a flash zone at flash conditions thereby increasing the temperature of the hydrocarbonaceous stream and vaporizing at least a portion thereof to provide a hydrocarbonaceous vapor stream comprising hydrogen and a heavy stream comprising the non-distillable component; (b) contacting the hydrocarbonaceous vapor stream comprising hydrogen with a hydrogenation catalyst in a hydrogenation reaction zone at hydrogenation conditions to increase the hydrogen content of the hydrocarbonaceous compounds contained in the hydrocarbonaceous vapor stream; (c) condensing at least a portion of the resu
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: April 4, 1989
    Assignee: UOP Inc.
    Inventors: Tom N. Kalnes, Robert B. James, Jr., Darrell W. Staggs
  • Patent number: 4735703
    Abstract: Concentrations of straight chain material are material are increased by treating a thermal-cracked oil distillate boiling in the range of 120.degree. to 290.degree. C. and containing aliphatic olefins, at a temperature of 0.degree. to 330.degree. C. in liquid phase in the presence of an acid catalyst, said thermal-cracked oil distillate being obtained from a thermal cracking process of thermally cracking a petrolic heavy residual oil at a temperature not lower than 400.degree. C. and not exceeding 700.degree. C.; and then separating and removing from the reaction mixture heavy components boiling higher than said distillate.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: April 5, 1988
    Assignee: Nippon Petrochemicals Company, Limited
    Inventors: Atsushi Sato, Yoshikazu Murai, Tatsuo Yamaguchi, Kanji Mochizuki, Kunio Sugisawa
  • Patent number: 4439309
    Abstract: A process for the cracking of carbonaceous liquid feedstock employing a hydrogen donor solvent, derived from the feedstock, in a two-stage cracking operation is disclosed.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: March 27, 1984
    Assignee: Chem Systems Inc.
    Inventors: Marvin I. Greene, Abraham P. Gelbein
  • Patent number: 4176047
    Abstract: A gasoline boiling range hydrocarbon stream obtained by fractionation of overhead vapors from a delayed coker is treated for removal of organic silicon compounds prior to being processed in a desulfurizer and catalytic reformer. The stream is treated by a bed of material such as alumina, activated alumina or spent alumina-based desulfurizer catalyst at elevated temperature to reduce the level of organic silicon compounds. The organic silicon compounds, if not removed, are detrimental to desulfurizer and reformer catalysts. The organic silicon compounds are conventionally added to a delayed coker to control foaming.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: November 27, 1979
    Assignee: Continental Oil Company
    Inventors: Derrell D. Orrell, Melvin M. McFeeters