By C Content Reduction, E.g., Cracking, Etc. Patents (Class 585/648)
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Patent number: 11401475Abstract: A reactor system configured for efficiently removing contaminants (CCR, nickel, vanadium, nitrogen, sodium, iron, calcium, chlorine etc.) from a heavy portion of the crude oil. The products are routed to a common main fractionation section. The heavy feed with lower contaminants may then be processed in a fluid catalytic cracking (FCC) unit, the overall concept employing a fluid catalytic reaction platform with carbon rejection approach. Also disclosed is a reactor system for efficiently processing crude oil in a fluid catalytic cracking unit with a dual-reactor and dual catalyst system to maximize petrochemical building blocks such as ethylene, propylene, butylenes, BTX (benzene, toluene and xylene) rich naphtha from a variety of crude oils.Type: GrantFiled: March 12, 2021Date of Patent: August 2, 2022Assignee: LUMMUS TECHNOLOGY LLCInventors: Rama Rao Marri, Justin Breckenridge, Liang Chen, Manoj Som
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Patent number: 11286424Abstract: Systems and methods for safe on-line pigging decoking of a coker furnace tubes and which also permits on-line spalling operations.Type: GrantFiled: October 22, 2019Date of Patent: March 29, 2022Assignee: BECHTEL ENERGY TECHNOLOGIES & SOLUTIONS, INC.Inventors: Brian Doerksen, John Ward, Rick Heniford, Scott Alexander, Richard Von Brecht, Jorge Gonzalez
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Patent number: 11136280Abstract: Systems and processes are provided to prevent light ends such as methane, ethylene and ethane from building up in an olefin/paraffin separation system that uses a combination of a membrane and distillation column for this separation. In one embodiment a small stripper column is provided downstream from a selective hydrogenation reactor. In the other embodiment, a surge vessel with a receiver is added to the retentate stream of the membrane unit.Type: GrantFiled: May 29, 2019Date of Patent: October 5, 2021Assignee: UOP LLCInventors: Mander Singh, Charles P Luebke, Trung Pham, Steven Kozup, Carl Liskey, Simon E. Albo, Saadet Ulas Acikgoz, Chunqing Liu
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Patent number: 11097996Abstract: A method for separating ethylene oligomerization reaction products is provided. The method improves energy efficiency by controlling the temperature of the ethylene oligomerization reaction products. When the method for separating the ethylene oligomerization reaction products of the present invention is used, it is possible to minimize the use of hot utility and save costs required for a separation process.Type: GrantFiled: November 15, 2019Date of Patent: August 24, 2021Inventors: Mi Kyung Kim, Eun Kyo Kim, Jeong Seok Lee
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Patent number: 11028327Abstract: Systems and methods are provided for performing a partial trip for an ethane steam cracker while reducing or minimizing ethane consumption in a ground flare system during the partial trip. In particular, a trip system is provided that reduces the firing on an ethylene furnace (such as a reduction into a range of 10% to 40% of normal firing) while also providing a reduced flow of feed to the furnace with dilution steam at a steam to hydrocarbon ratio similar to a ratio that is suitable during normal operation. The trip system can be actuated, for example, when the loss of circulating quench water to the water quench tower is detected.Type: GrantFiled: July 23, 2019Date of Patent: June 8, 2021Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gregory E. Yeo, Jennifer L. Port, Philippe J. Le Roy
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Patent number: 10995282Abstract: A process for converting C2-5 alkanes to higher value C5-24 hydrocarbon fuels and blendstocks. The C2-5 alkanes are converted to olefins by thermal olefination, without the use of a dehydrogenation catalyst and without the use of steam. The product olefins are fed to an oligomerization reactor containing a zeolite catalyst to crack, oligomerize and cyclize the olens to the fuel products which are then recovered. Optionally, hydrogen and methane are removed from the product olefin stream prior to oligomerization. Further optionally, C2-5 alkanes are removed from the product olefin stream prior to oligomerization.Type: GrantFiled: October 16, 2019Date of Patent: May 4, 2021Assignee: SWIFT FUELS, LLCInventors: Chris D'Acosta, Jeffery Miller, Kurtis Sluss, Benjamin Wegenhart
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Patent number: 10968399Abstract: This disclosure provides methods for decoking tubular passes of crude oil heaters and processed hydrocarbon heaters. The method permits continued operation of an associated crude oil processing unit or a processed hydrocarbon processing unit receiving crude oil or processed hydrocarbons from the heater during the decoking operation. The decoking operation utilizes dry steam to remove coke from passes within the crude oil heater or processed hydrocarbon heater and dry steam to maintain balanced operation of the crude oil processing unit or processed hydrocarbon processing unit.Type: GrantFiled: April 5, 2018Date of Patent: April 6, 2021Assignee: CITGO PETROLEUM CORPORATIONInventors: Brent Mayo, John Curry, Darrell W. Gill
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Patent number: 10954457Abstract: According to at least one aspect of the present disclosure, a method for processing a heavy oil includes introducing the heavy oil to a hydroprocessing unit, the hydroprocessing unit being operable to hydroprocess the heavy oil to form a hydroprocessed effluent by contacting the heavy oil feed with an HDM catalyst, an HDS catalyst, and an HDA catalyst. The hydroprocessed effluent is passed directly to a HS-FCC unit, the HS-FCC unit being operable to crack the hydroprocessed effluent to form a cracked effluent comprising at least one product. The cracked effluent is passed out of the HS-FCC unit. The heavy oil has an API gravity of from 25 degrees to 50 degrees and at least 20 wt. % of the hydroprocessed effluent passed to the HS-FCC unit has a boiling point less than 225 degrees ° C.Type: GrantFiled: February 13, 2019Date of Patent: March 23, 2021Assignee: Saudi Arabian Oil CompanyInventors: Mansour Ali Al-Herz, Musaed Salem Al-Ghrami
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Patent number: 10899970Abstract: The invention relates to the compression of a pyrolysis product to facilitate light olefin separation. The pyrolysis product is produced in a pyrolysis reaction. A power generator produces a first shaft power and a second shaft power. The pyrolysis product is compressed using at least part of the first shaft power and at least part of the second shaft power.Type: GrantFiled: August 15, 2017Date of Patent: January 26, 2021Assignee: ExxonMobil Chemical Patents Inc.Inventors: Thomas W. Pavia, Federico Barrai, Frank Hershkowitz, Gregory E. Yeo
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Patent number: 10808187Abstract: Process scheme configurations are disclosed that enable conversion of crude oil feeds with several processing units in an integrated manner into petrochemicals. The designs utilize minimum capital expenditures to prepare suitable feedstocks for the steam cracker complex. The integrated process for converting crude oil to petrochemical products including olefins and aromatics, and fuel products, includes mixed feed steam cracking and gas oil steam cracking. Feeds to the mixed feed steam cracker include one or more naphtha fractions from hydroprocessing zones within the battery limits, including vacuum residue hydrocracking, within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline aromatics extraction zone within the battery limits. Feeds to the gas oil steam cracker include gas oil range intermediates from the vacuum gas oil hydroprocessing zone and the vacuum residue hydrocracking zone.Type: GrantFiled: August 29, 2019Date of Patent: October 20, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventors: Mohammed Saeed Al-Ghamdi, Bader BaHammam, Naif Al Osaimi, Sami Barnawi
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Patent number: 10800977Abstract: Process scheme configurations are disclosed that enable conversion of crude oil feeds with several processing units in an integrated manner into petrochemicals. The designs utilize minimum capital expenditures to prepare suitable feedstocks for the steam cracker complex. The integrated process for converting crude oil to petrochemical products including olefins and aromatics, and fuel products, includes mixed feed steam cracking and gas oil steam cracking. Feeds to the mixed feed steam cracker include light products and naphtha from hydroprocessing zones within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline aromatics extraction zone within the battery limits. Feeds to the gas oil steam cracker include gas oil range intermediates from the vacuum gas oil hydroprocessing zone.Type: GrantFiled: August 29, 2019Date of Patent: October 13, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventors: Mohammed Saeed Al-Ghamdi, Bader Bahammam, Naif Al Osaimi, Sami Barnawi
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Patent number: 10800983Abstract: Process scheme configurations are disclosed that enable conversion of crude oil feeds with several processing units in an integrated manner into petrochemicals. The designs utilize minimum capital expenditures to prepare suitable feedstocks for the steam cracker complex. The integrated process for converting crude oil to petrochemical products including olefins and aromatics, and fuel products, includes mixed feed steam cracking and gas oil steam cracking. Feeds to the mixed feed steam cracker include one or more naphtha fractions from hydroprocessing zones within the battery limits, including vacuum residue hydrocracking, within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline aromatics extraction zone within the battery limits. Feed to the gas oil steam cracker in certain embodiments includes gas oil range intermediates from the vacuum residue hydrocracking zone.Type: GrantFiled: August 29, 2019Date of Patent: October 13, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventors: Mohammed Saeed Al-Ghamdi, Bader BaHammam, Naif Al Osaimi, Sami Barnawi
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Patent number: 10793794Abstract: Process scheme configurations are disclosed that enable conversion of crude oil feeds with several processing units in an integrated manner into petrochemicals. The designs utilize minimum capital expenditures to prepare suitable feedstocks for the steam cracker complex. The integrated process for converting crude oil to petrochemical products including olefins and aromatics, and fuel products, includes mixed feed steam cracking and gas oil steam cracking. Feeds to the mixed feed steam cracker include light products and naphtha from hydroprocessing zones within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline aromatics extraction zone within the battery limits. Feeds to the gas oil steam cracker include hydrotreated gas oil range intermediates from the vacuum gas oil hydroprocessing zone. Furthermore, vacuum residue is processed in a solvent deasphalting unit to produce deasphalted oil as additional feed to the gas oil hydroprocessing zone.Type: GrantFiled: August 29, 2019Date of Patent: October 6, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventors: Mohammed Saeed Al-Ghamdi, Bader BaHammam, Naif Al Osaimi, Sami Barnawi
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Patent number: 10760012Abstract: Process scheme configurations are disclosed that enable conversion of crude oil feeds with several processing units in an integrated manner into petrochemicals. The designs utilize minimum capital expenditures to prepare suitable feedstocks for the steam cracker complex. The integrated process for converting crude oil to petrochemical products including olefins and aromatics, and fuel products, includes mixed feed steam cracking and conversion of naphtha to chemical rich reformate. Feeds to the mixed feed steam cracker include light products from hydroprocessing zones within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline aromatics extraction zone within the battery limits. Chemical reformate from straight run naphtha streams is used as an additional feed to the aromatics extraction zone and or the mixed feed steam cracker.Type: GrantFiled: August 29, 2019Date of Patent: September 1, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventors: Mohammed Saeed Al-Ghamdi, Bader BaHammam, Naif Al Osaimi, Sami Barnawi
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Patent number: 10760011Abstract: Process scheme configurations are disclosed that enable conversion of crude oil feeds with several processing units in an integrated manner into petrochemicals. The designs utilize minimum capital expenditures to prepare suitable feedstocks for the steam cracker complex. The integrated process for converting crude oil to petrochemical products including olefins and aromatics, and fuel products, includes mixed feed steam cracking and gas oil steam cracking. Feeds to the mixed feed steam cracker include light products and naphtha from hydroprocessing zones within the battery limits, recycle streams from the C3 and C4 olefins recovery steps, and raffinate from a pyrolysis gasoline aromatics extraction zone within the battery limits. Feeds to the gas oil steam cracker include unconverted oil intermediates from vacuum gas oil hydrotreating.Type: GrantFiled: August 29, 2019Date of Patent: September 1, 2020Assignee: SAUDI ARABIAN OIL COMPANYInventor: Mohammed Saeed Al-Ghamdi
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Patent number: 10710942Abstract: An integrated process for forming a combined feedstock stream comprising catalytically cracking a first hydrocarbon feedstock to form a full range cracked full naphtha stream and a first light olefins stream, steam cracking a second hydrocarbon feedstock to form a pyrolysis gasoline stream and a second light olefins stream mixing at least a portion of each of the full range cracked naphtha stream and the pyrolysis gasoline stream to form a combined stream, hydro-processing the combined stream to form a hydro-processed combined stream splitting the hydro-processed combined stream into a C5/C6 stream, and a first aromatic rich stream, splitting the first aromatic rich stream into a second aromatic rich stream and a heavy oil stream.Type: GrantFiled: May 12, 2017Date of Patent: July 14, 2020Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Sheetal Bafna, Sanjeev Deshpande, Michael Huckman, Scott Stevenson
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Patent number: 10696906Abstract: A coke catching apparatus for use in hydrocarbon cracking to assist in the removal of coke and the prevention of coke build up in high coking hydrocarbon processing units. The apparatus includes a grid device for preventing large pieces of coke from entering the outlet of the process refining equipment while lowing small pieces of coke to pass through and be disposed of. The coke catching apparatus can be easily disassembled to be removed from the refining process equipment and cleaned.Type: GrantFiled: September 7, 2018Date of Patent: June 30, 2020Assignee: Marathon Petroleum Company LPInventors: Gregory A. Cantley, Ross Vail, Kathleen Yaden, Ray Brooks
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Patent number: 10549267Abstract: Provided are zeolite catalysts that allow reactions to proceed at temperatures as low as possible when lower olefins are produced from hydrocarbon feedstocks with low boiling points such as light naphtha, make it possible to make propylene yield higher than ethylene yield in the production of lower olefins, and have long lifetime. The zeolite catalysts are used in the production of lower olefins from hydrocarbon feedstocks with low boiling points such as light naphtha. The zeolite catalysts are MFI-type crystalline aluminosilicates containing iron atoms and have molar ratios of iron atoms to total moles of iron atoms and aluminum atoms in the range from 0.4 to 0.7. The use of the zeolite catalysts make it possible to increase propylene yield, to lower reaction temperatures, and to extend catalyst lifetime.Type: GrantFiled: May 3, 2019Date of Patent: February 4, 2020Assignee: CHIYODA CORPORATIONInventors: Shinya Hodoshima, Fuyuki Yagi, Azusa Motomiya, Shuhei Wakamatsu, Sachio Asaoka
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Patent number: 10407629Abstract: The present invention relates to an integrated process to convert crude oil into petrochemical products comprising crude oil distillation, hydrocracking, aromatization and olefins synthesis. Furthermore, the present invention relates to a process installation to convert crude oil into petrochemical products comprising a crude distillation unit, a hydrocracker, an aromatization unit and a unit for olefins synthesis.Type: GrantFiled: December 10, 2014Date of Patent: September 10, 2019Assignees: SAUDI BASIC INDUSTRIES CORPORATION, SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Arno Johannes Maria Oprins, Ravichander Narayanaswamy, Vijayanand Rajagopalan, Andrew Mark Ward, Joris van Willigenburg, Raul Velasco Pelaez, Egidius Jacoba Maria Schaerlaeckens
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Patent number: 10208257Abstract: Systems and processes for efficiently cracking of hydrocarbon mixtures, such as mixtures including compounds having a normal boiling temperature of greater than 450° C., 500° C., or even greater than 550° C., such as whole crudes for example, are disclosed.Type: GrantFiled: July 6, 2018Date of Patent: February 19, 2019Assignee: LUMMUS TECHNOLOGY LLCInventor: Kandasamy Meenakshi Sundaram
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Patent number: 10017702Abstract: Systems and processes for efficiently cracking of hydrocarbon mixtures, such as mixtures including compounds having a normal boiling temperature of greater than 450° C., 500° C., or even greater than 550° C., such as whole crudes for example, are disclosed.Type: GrantFiled: October 5, 2015Date of Patent: July 10, 2018Assignee: Lummus Technology Inc.Inventor: Kandasamy Meenakshi Sundaram
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Patent number: 10011778Abstract: The present invention discloses a process optimizing the yield of propylene from a fluid catalytic cracking unit. The method combines a first catalytic reactor, a fractionation zone, a separation unit and a second catalytic reactor. The separation unit produces a first separation unit stream and a second separation unit stream, the first separation unit stream comprising Cx paraffins, and the second separation unit stream comprising Cx olefins, wherein the second separation unit stream is passed to a second catalytic reactor and the first separation unit stream is removed from the process.Type: GrantFiled: December 17, 2013Date of Patent: July 3, 2018Assignee: UOP LLCInventors: Charles P. Luebke, Kirk Liu, Zhihao Fei
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Patent number: 9969941Abstract: The invention relates to a process for converting hydrocarbons into unsaturated products such as acetylene and/or ethylene. The invention also relates to converting acetylene to olefins such as ethylene and/or propylene, to polymerizing the olefins, and to equipment useful for these processes.Type: GrantFiled: June 29, 2016Date of Patent: May 15, 2018Assignee: ExxonMobil Chemical Patents Inc.Inventors: Frank Hershkowitz, Paul F. Keusenkothen, Jeffrey W. Frederick, Richard J. Basile, John W. Fulton
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Patent number: 9969662Abstract: In a process for producing olefins, a hydrocarbon-containing feed is fed into a cracking furnace where relatively long-chain hydrocarbons of the hydrocarbon-containing feed are cracked at least partly to form shorter-chain olefins, encompassing ethylene and propylene. Cracking gas (1) formed during cracking is conveyed in succession through an upper section (11) and a lower section (12) of a scrubbing column (10) in countercurrent to a liquid scrubbing medium (43, 31), is proposed. A fraction (43) rich in petroleum spirit is used in the lower section (11) of the scrubbing column (10) and a water-rich fraction (31) is used in the upper section (11) of the scrubbing column (10) as scrubbing medium (43, 31). A plant configured for carrying out the process is likewise provided by the present invention.Type: GrantFiled: April 2, 2013Date of Patent: May 15, 2018Assignee: LINDE AKTIENGESELLSCHAFTInventors: Tuat Pham Duc, Holger Schmigalle
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Patent number: 9915477Abstract: Configurations and related processing schemes of specific inter-plants and hybrid, intra- and inter-plants waste heat recovery schemes for thermal energy consumption reduction in integrated refining-petrochemical facilities synthesized for grassroots medium grade crude oil semi-conversion refineries to increase energy efficiency from specific portions of low grade waste heat sources are described. Configurations and related processing schemes of specific inter-plants and hybrid, intra- and inter-plants waste heat recovery schemes for thermal energy consumption reduction in integrated refining-petrochemical facilities synthesized for integrated medium grade crude oil semi-conversion refineries and aromatics complex for increasing energy efficiency from specific portions of low grade waste sources are also described.Type: GrantFiled: August 19, 2016Date of Patent: March 13, 2018Assignee: Saudi Arabian Oil CompanyInventors: Mahmoud Bahy Mahmoud Noureldin, Hani Mohammed Al Saed
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Patent number: 9845996Abstract: Configurations and related processing schemes of inter-plants and hybrid, intra- and inter-plants' direct or indirect heating systems synthesized for grassroots medium grade crude oil semi-conversion refineries to increase energy efficiency from specific portions of low grade waste heat sources are described. Configurations and related processing schemes of inter-plants and hybrid, intra- and inter-plants' direct or indirect heating systems synthesized for integrated medium grade crude oil semi-conversion refineries and aromatics complex for increasing energy efficiency from specific portions of low grade waste sources are also described.Type: GrantFiled: August 19, 2016Date of Patent: December 19, 2017Assignee: Saudi Arabian Oil CompanyInventors: Mahmoud Bahy Mahmoud Noureldin, Hani Mohammed Al Saed
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Patent number: 9783465Abstract: A novel process and a novel catalyst for the production of light olefins. 1-butene is cracked in the presence of an acid- or base-modified silicalite-1 catalyst bed, wherein the modified silicalite-1 has a Si/Al ratio of greater than 1000. The modification procedures described herein increase the selectivity of the silicalite-1 catalyst toward light olefins such as ethylene and propylene. The catalytic cracking of 1-butene may be carried out in a fixed bed reactor or a fluidized bed reactor.Type: GrantFiled: July 25, 2017Date of Patent: October 10, 2017Assignee: King Fahd University of Petroleum and MineralsInventors: Sulaiman Saleh Al-Khattaf, Arudra Palani, Abdullah Mohammed Aitani
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Patent number: 9656928Abstract: A novel process and a novel catalyst for the production of light olefins. 1-butene is cracked in the presence of an acid- or base-modified silicalite-1 catalyst bed, wherein the modified silicalite-1 has a Si/Al ratio of greater than 1000. The modification procedures described herein increase the selectivity of the silicalite-1 catalyst toward light olefins such as ethylene and propylene. The catalytic cracking of 1-butene may be carried out in a fixed bed reactor or a fluidized bed reactor.Type: GrantFiled: November 12, 2014Date of Patent: May 23, 2017Assignee: King Fahd University of Petroleum and MineralsInventors: Sulaiman Saleh Al-Khattaf, Arudra Palani, Abdullah Mohammed Aitani
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Patent number: 9522376Abstract: One exemplary embodiment may be a process for fluid catalytic cracking. The process can include providing a stream through a plurality of distributors to a riser terminating in a reaction vessel. Often, the plurality of distributors includes a first distributor set having at least two distributors positioned around a perimeter of the riser, a second distributor set having at least two distributors positioned around the perimeter of the riser, and a third distributor set having at least two distributors positioned around the perimeter of the riser.Type: GrantFiled: June 8, 2012Date of Patent: December 20, 2016Assignee: UOP LLCInventors: Raymond Peterman, Chad R. Huovie, Patrick D. Walker
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Patent number: 9468897Abstract: The present invention discloses a process optimizing the yield of ethylene and propylene from a fluid catalytic cracking unit. The method combines a first catalytic reactor, a fractionation zone, a separation unit and a second catalytic reactor. The separation unit produces a first separate stream comprising C4 olefins and a second separate stream comprising C5 olefins. The separate streams may be combined and are passed to a second catalytic reactor for additional conversion to ethylene and propylene.Type: GrantFiled: December 19, 2014Date of Patent: October 18, 2016Assignee: UOP LLCInventors: Kirk Liu, Zhihao Fei, Charles P. Luebke
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Patent number: 9346721Abstract: The invention relates to hydrocarbon conversion processes, to equipment useful in such processes, to the products of such hydrocarbon conversion processes and the use thereof, and to the use of energy derived from such processes.Type: GrantFiled: May 19, 2014Date of Patent: May 24, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stephen Mark Davis, Mark L. Merrifield, Keith H. Kuechler, Loren K. Starcher
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Patent number: 9079813Abstract: A process for conversion of isobutanol to make propylene can include dehydrating the isobutanol to produce butenes. The process can include cracking the butenes to produce propylene.Type: GrantFiled: July 8, 2011Date of Patent: July 14, 2015Assignee: TOTAL RESEARCH & TECHNOLOGY FELUYInventors: Cindy Adam, Delphine Minoux, Nikolai Nesterenko, Sander Van Donk, Jean-Pierre Dath
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Patent number: 9035119Abstract: This invention relates to the oligomerization of olefinic compounds in the presence of an activated oligomerization catalyst. The invention also extends to a particular manner for providing an activated oligomerization catalyst.Type: GrantFiled: February 15, 2010Date of Patent: May 19, 2015Assignee: Sasol Technology (PTY) LimitedInventors: Sean William Ewart, Brian William Stirling Kolthammer, David Matthew Smith, Martin John Hanton, John Thomas Dixon, David Hedley Morgan, Henriette De Bod, William Fullard Gabrielli, Stephen John Evans
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Publication number: 20150123039Abstract: The invention relates to a rotary disc device (1) in a rotary fluidised bed, the outer edge of said disc rotating inside, and faster than, the fluidised bed, thereby allowing: the rotation speed of the fluidised bed to be accelerated, solid particles and/or micro-droplets to be supplied to the fluidised bed or to the free central area, and different annular areas of the fluidised bed to be separated. The invention also relates to methods for transforming solid particles or micro-droplets on contact with the fluids flowing through the rotary fluidised bed or for transforming fluids on contact with solids in suspension in the rotary fluidised bed, using said device.Type: ApplicationFiled: April 4, 2013Publication date: May 7, 2015Inventor: Axel De Broqueville
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Patent number: 9024100Abstract: The present invention discloses a process for producing olefins from petroleum saturated hydrocarbons. The process of the present invention comprises: contacting a preheated petroleum saturated hydrocarbons feedstock with a dehydrogenation catalyst in a dehydrogenation reaction zone of a reaction system to obtain a petroleum hydrocarbon stream containing unsaturated hydrocarbon compounds, in which the dehydrogenation reaction has a conversion rate of at least 20%; and contacting the obtained petroleum hydrocarbon stream containing the unsaturated hydrocarbon compounds with olefins cracking catalyst in an olefin cracking zone of the reaction system to obtain a product stream containing olefins with a reduced number of carbon atoms.Type: GrantFiled: July 18, 2008Date of Patent: May 5, 2015Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Guoqing Wang, Zhaobin Zhang, Shuo Chen, Lijun Zhang
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Publication number: 20150119620Abstract: In a process for the synthesis of a crystalline molecular sieve material having the EUO framework type, a synthesis mixture is provided suitable for the formation of an EUO framework type molecular sieve and comprising N,N,N,N?,N?,N?-hexamethylhexanediammonium, Q, cations and a colloidal suspension of seed crystals of an EUO framework type molecular sieve. The synthesis mixture is crystallized and an EUO framework type molecular sieve in the form individual crystals and/or aggregates of crystals having an average size, d50, as measured by laser scattering, of less than 15 ?m is recovered from the synthesis mixture.Type: ApplicationFiled: June 7, 2013Publication date: April 30, 2015Inventor: Machteld M. W. Mertens
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Patent number: 8993824Abstract: One exemplary embodiment can be a process for fluid catalytic cracking. The process may include providing a first feed having a boiling point of about 180-about 800° C. to a first riser reactor, and providing a second feed having first and second parts to a second reactor. Typically, the first part includes one or more C5-C12 hydrocarbons and a second part includes one or more C4-C5 hydrocarbons. Generally, an effective amount of the second part is combined with the first part to maximize production of propene.Type: GrantFiled: September 28, 2011Date of Patent: March 31, 2015Assignee: UOP LLCInventor: Robert L. Mehlberg
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Patent number: 8975459Abstract: A process for making a bio-naphtha and optionally bio-propane from a complex mixture of natural occurring fats & oils, wherein said complex mixture is subjected to a refining treatment for removing the major part of non-triglyceride and non-fatty acid components, thereby obtaining refined fats & oils; said refined fats & oils are transformed into linear or substantially linear paraffin's as the bio-naphtha by an hydrodeoxygenation or from said refined fats & oils are obtained fatty acids that are transformed into linear or substantially linear paraffin's as the bio-naphtha by hydrodeoxygenation or decarboxylation of the free fatty acids or from said refined fats & oils are obtained fatty acids soaps that are transformed into linear or substantially linear paraffin's as the bio-naphtha by decarboxylation of the soaps.Type: GrantFiled: December 3, 2013Date of Patent: March 10, 2015Assignee: Total Research & Technology FeluyInventors: Walter Vermeiren, Nicolas Van Gyseghem
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Patent number: 8956995Abstract: The invention provides a catalyst for thermal decomposition of an organic substance having the form of spherical granule having a particle diameter of 0.1 to 1.2 mm, a pore volume of 0.1 to 0.3 mL/g, a tap density of 1.05 to 1.4 g/mL, and a wear rate of 2% by weight or less, the catalyst being obtained by mixing and granulating a pulverized product of an inorganic oxide exemplified by titanium oxide with at least one sol selected from a titania sol, a silica sol, an alumina sol, and a zirconia sol to make spherical granules, calcining the spherical granules at a temperature from 400 to 850° C., and sieving the calcined granules.Type: GrantFiled: August 18, 2009Date of Patent: February 17, 2015Assignee: Sakai Chemical Industry Co., Ltd.Inventors: Mitsuru Masatsugu, Toshikatsu Umaba, Itsushi Kashimoto
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Patent number: 8957267Abstract: The invention concerns a process for the production of gasoline and for the co-production of propylene using a catalytic cracking unit comprising a catalyst regeneration zone and a reaction zone with two risers functioning in parallel under different severity conditions, the catalyst circulating between the regeneration zone and the reaction zone in two parallel circuits, a circuit termed the principal circuit comprising a first external catalyst cooling system, and a circuit termed the secondary circuit comprising a second external catalyst cooling system.Type: GrantFiled: June 3, 2009Date of Patent: February 17, 2015Assignee: IFP Energies NouvellesInventors: Frederic Feugnet, Thierry Gauthier
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Patent number: 8940951Abstract: A process for preparing isobutene by dissociation of MTBE, including: a) reaction of isobutene-containing hydrocarbon mixtures, with methanol, present in one or more methanol-containing streams, over acidic ion exchangers to give a stream, containing MTBE and TBA; b) separation of a stream containing MTBE and TBA, from a stream by distillation; c) dissociation of a stream in the gas phase over a heterogeneous catalyst to give a stream containing at least isobutene, methanol, MTBE and water and possibly TBA, d) separation of a stream by distillation to give a stream containing in each case more than 50% by mass of the amounts of methanol, TBA and water present in another stream and a stream containing isobutene, e) separation of water from stream to below 1% by mass by distillation to give a stream, f) total or partial recirculation of the methanol-containing stream.Type: GrantFiled: June 16, 2010Date of Patent: January 27, 2015Assignee: Evonik Degussa GmbHInventors: Markus Winterberg, Dirk Roettger, Armin Rix, Reiner Bukohl, Walter Luh, Holger Wiederhold, Gunnar Schilling, Christian Boeing
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Patent number: 8940955Abstract: One exemplary embodiment can be a fluid catalytic cracking system. The system can include a reaction zone, in turn including a reactor receiving, a fluidizing stream, a fuel gas stream, a fluidizable catalyst, a stream having an effective amount of oxygen for combusting the fuel gas stream, and a feed.Type: GrantFiled: December 19, 2008Date of Patent: January 27, 2015Assignee: UOP LLCInventor: Robert L. Mehlberg
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Patent number: 8937206Abstract: The process converts FCC olefins to heavier compounds. The heavier compounds are more easily separated from the unconverted paraffins. The heavier compounds can be recycled to an FCC unit or delivered to a separate FCC unit. Suitable conversion zones are oligomerization and aromatic alkylation zones.Type: GrantFiled: March 27, 2014Date of Patent: January 20, 2015Assignee: UOP LLCInventors: Joao Jorge da Silva Ferreira Alves, James E. Rekoske, Christopher P. Nicholas
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Patent number: 8912380Abstract: One exemplary embodiment can be a fluid catalytic cracking system. The system can include a reaction zone, in turn including a reactor receiving, a fluidizing stream, a fuel gas stream, a fluidizable catalyst, a stream having an effective amount of oxygen for combusting the fuel gas stream, and a feed.Type: GrantFiled: December 19, 2011Date of Patent: December 16, 2014Assignee: UOP LLCInventor: Robert L. Mehlberg
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Publication number: 20140357923Abstract: The invention generally relates to vapor-liquid separation, such as disengaging liquid from vapor containing C2-4 olefin. The invention also relates to processes for separating liquid and vapor, to equipment useful in such processes, and to the use of such equipment in vapor-liquid separation systems.Type: ApplicationFiled: February 12, 2014Publication date: December 4, 2014Inventors: Thomas W. Pavia, Berne K. Stober, Terri S. Vander Pol
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Patent number: 8895796Abstract: Described herein are processes and related devices and systems for the conversion of higher hydrocarbons, such as in the form of waste plastics, petroleum sludge, slope oil, vegetable oil, and so forth, into lower hydrocarbons, which can be used as fuels or raw materials for a variety of industrial and domestic uses.Type: GrantFiled: June 18, 2010Date of Patent: November 25, 2014Assignee: Innovative Energy Solutions, Inc.Inventors: Atul G. Kelkar, Prasad V. Bhat
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Patent number: 8864977Abstract: A process for the on-stream decoking of a steam cracking furnace, the steam cracking furnace including multiple tube banks positioned between a hydrocarbon feedstock inlet and a convection section to radiant section crossover, each tube bank including a plurality of tubes arranged within the tube bank, the process comprising the steps of terminating the flow of hydrocarbon feed to a portion of the plurality of tubes of less than all of the multiple tube banks, and supplying a decoking feed comprising steam to the portion of the plurality of tubes of less than all of the multiple tube banks in sufficient amount to effect removal of coke accumulated on the interior of the radiant coils and quench system components fed by such tubes while maintaining a temperature at the convection section to radiant section crossover of below about 788° C. A furnace for the production of ethylene is also provided.Type: GrantFiled: July 11, 2008Date of Patent: October 21, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventor: David B. Spicer
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Publication number: 20140296604Abstract: A method and system are disclosed for managing hydrate formation in a process that converts a hydrocarbon stream into C2 unsaturates, such as ethylene and/or acetylenes. The method includes adding a hydrate inhibitor to a hydrocarbon stream to lower the hydrate formation point of the mixture stream from an initial hydrate formation point (HI) of the hydrocarbon stream to a depressed hydrate formation point (HD) of the mixture stream. Then, the mixture stream is depressurized to adiabatically cool the stream to a temperature (T), wherein the HD<T<HI. Then, at least a portion of the mixture stream is vaporized and the vaporized portion of the mixture stream is separated from the unvaporized portion of the mixture stream. Once separated, at least a portion of the vaporized portion is converted into product, such as ethylene and/or acetylene.Type: ApplicationFiled: March 6, 2012Publication date: October 2, 2014Applicant: ExxonMobil Chemical Patents Inc.Inventors: William R. White, James L. Kendall, Jennifer L. Bancroft, Russell Dean Sellen
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Publication number: 20140243569Abstract: A rotary machine type shock wave reactor suitable for thermal cracking of hydrocarbon-containing materials includes a casing, a rotor whose periphery contains an axial-flow blade cascade, and a directing rim, provided with at least two stationary vane cascades, adjoining an axial-flow rotor cascade, wherein the casing substantially encloses the periphery of the rotor and the directing rim. The cascades are configured to direct feedstock containing process stream to repeatedly pass the cascades in a helical trajectory while propagating within the duct between the inlet and exit and to generate stationary shock-waves to heat the feedstock. The axial-flow rotor cascade is configured to provide kinetic energy and add velocity to feedstock containing process stream, and the stationary vanes located downstream the rotor cascade are configured to reduce the velocity of the stream and convert kinetic energy into heat.Type: ApplicationFiled: February 22, 2013Publication date: August 28, 2014Applicant: COOLBROOK OYInventors: Jukka SEPPALA, Jyrki HILTUNEN, Veli-Matti PUROLA
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Patent number: 8815080Abstract: Processes for production of olefins from hydrocarbon feedstocks are provided. In one aspect, the processes of the present invention utilize coils passing through a pyrolysis furnace to partially convert a hydrocarbon feedstock to olefins, followed by further conversion of the hydrocarbon feedstock in an adiabatic reactor. A portion of the coils in the pyrolysis furnace carry the hydrocarbon feedstock and the remainder carry steam only. After a selected period of time, the material flowing through the coils is switched. By flowing steam through the coils that had previously contained the hydrocarbon feedstock, on-line decoking can occur. In another aspect, a high temperature reactor is used to convert methane or natural gas to olefins.Type: GrantFiled: January 26, 2009Date of Patent: August 26, 2014Assignee: Lummus Technology Inc.Inventor: Kandasamy Meenakshi Sundaram