Molecular Weight Reduction Patents (Class 585/256)
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Patent number: 11634649Abstract: Integrated pyrolysis and hydrocracking 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 1, 2020Date of Patent: April 25, 2023Assignee: LUMMUS TECHNOLOGY LLCInventors: Kandasamy Meenakshi Sundaram, Stephen J. Stanley, Ronald M. Venner, Ujjal K. Mukherjee
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Patent number: 11220640Abstract: A process for treatment of PFO from a steam cracking zone includes selectively hydrogenating PFO or a portion thereof for conversion of polyaromatics compounds contained in the PFO into aromatic compounds with one benzene ring to produce a selectively hydrogenated stream. The selectively hydrogenated stream is reacted in a fluid catalytic cracking reactor for selective ring opening and dealkylation to produce fluid catalytic cracking including light cycle oil. In addition, a naphtha reformer is integrated, so that light cycle oil and a reformate stream are separated into BTX compounds. Optionally the PFO is separated into a first stream containing C9+ aromatics compounds with one benzene ring, and a second stream containing C10+ aromatic compounds, whereby the first stream containing C9+ aromatics compounds with one benzene ring is passed to the fluid catalytic cracking reactor, and the feed to the selective hydrogenation step comprises all or a portion of the second stream containing C10+ aromatic compounds.Type: GrantFiled: October 30, 2019Date of Patent: January 11, 2022Assignee: SAUDI ARABIAN OIL COMPANYInventors: Qi Xu, Raed Abudawoud
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Patent number: 11220637Abstract: A process for treatment of PFO from a steam cracking zone includes selectively hydrogenating PFO or a portion thereof for conversion of polyaromatics compounds contained in the PFO into aromatic compounds with one benzene ring to produce a selectively hydrogenated stream. The selectively hydrogenated stream is reacted in a fluid catalytic cracking reactor for selective ring opening and dealkylation to produce fluid catalytic cracking including light cycle oil. The light cycle oil is separated into BTX compounds. Optionally the PFO is separated into a first stream containing C9+ aromatics compounds with one benzene ring, and a second stream containing C10+ aromatic compounds, whereby the first stream containing C9+ aromatics compounds with one benzene ring is passed to the fluid catalytic cracking reactor, and the feed to the selective hydrogenation step comprises all or a portion of the second stream containing C10+ aromatic compounds.Type: GrantFiled: October 30, 2019Date of Patent: January 11, 2022Assignee: SAUDI ARABIAN OIL COMPANYInventors: Qi Xu, Raed Abudawoud
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Patent number: 11198822Abstract: In an embodiment, a process for converting a hydrocarbon feed includes introducing a hydrocarbon feed comprising a C2-C50 acyclic alkane and a C3-C50 cyclic alkane to a catalyst composition in a reactor. The process further includes converting the hydrocarbon feed in the reactor under reactor conditions to a product mixture comprising at least one of a C6-C9 aromatic product or a C12+ distillate product.Type: GrantFiled: March 30, 2020Date of Patent: December 14, 2021Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Kun Wang, Jonathan E. Mitchell
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Patent number: 10858602Abstract: Compositions corresponding to marine diesel fuels, fuel oils, jet fuels, and/or blending components thereof are provided that include at least a portion of a natural gas condensate fraction. Natural gas condensate fractions derived from a natural gas condensate with sufficiently low API gravity can provide a source of low sulfur, low pour point blend stock for formation of marine diesel and/or fuel oil fractions. Natural gas condensate fractions can provide these advantages and/or other advantages without requiring prior hydroprocessing and/or cracking.Type: GrantFiled: September 20, 2018Date of Patent: December 8, 2020Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Scott K. Berkhous, Sheryl B. Rubin-Pitel, Kenneth C. H. Kar
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Patent number: 10717688Abstract: The present invention relates to a process for producing benzene from a mixed hydrocarbon feedstream comprising subjecting C6 cut separated from said mixed hydrocarbon feedstream to aromatization to provide a benzene-rich aromatic stream and recovering the benzene from the benzene-rich aromatic stream.Type: GrantFiled: June 25, 2015Date of Patent: July 21, 2020Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventors: Scott Stevenson, Dimitri Daniëls
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Patent number: 9487457Abstract: The present method for producing monocyclic aromatic hydrocarbons is a method for producing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms. This method includes a cracking and reforming reaction step of bringing oil feedstock into contact with a catalyst to cause a reaction and obtain a product containing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms and a heavy fraction having 9 or more carbon atoms, a purification and recovery step of purifying and recovering the monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms separated from the product formed by the cracking and reforming reaction step, and a first returning step of returning at least a portion of toluene obtained by the purification and recovery step to the cracking and reforming reaction step.Type: GrantFiled: May 24, 2012Date of Patent: November 8, 2016Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATIONInventors: Shinichiro Yanagawa, Yasuyuki Iwasa, Ryoji Ida, Masahide Kobayashi, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Akira Utatsu
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Patent number: 9382173Abstract: Provided is a method for producing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms, the method including a cracking reforming reaction step of bringing feedstock oil into contact with a catalyst to effect a reaction; a step of purifying and recovering monocyclic aromatic hydrocarbons separated from the reaction step; and (1) a step of hydrogenating a heavy fraction separated from the reaction step; a dilution step of returning a portion of the hydrogenation product as a diluent oil to the hydrogenation step; and a step of returning the hydrogenation product to the reaction step; or (2) a step of adding a diluent to the heavy fraction separated from the reaction step; a step of hydrogenating the mixture; and a step of returning the hydrogenation product to the reaction step.Type: GrantFiled: March 23, 2012Date of Patent: July 5, 2016Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATIONInventors: Shinichiro Yanagawa, Ryoji Ida, Yasuyuki Iwasa, Masahide Kobayashi, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo
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Patent number: 9382174Abstract: A method for producing monocyclic aromatic hydrocarbons includes a cracking reforming reaction step of bringing an oil feedstock into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate, and causing the oil feedstock to react, thereby obtaining a product containing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms, a hydrogenation reaction step of hydrogenating a product produced in the cracking reforming reaction step, a monocyclic aromatic hydrocarbon recovery step of recovering monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms separated from a hydrogenation product obtained in the hydrogenation reaction step and a recycling step of returning a heavy fraction having 9 or more carbon atoms separated from the hydrogenation product obtained in the hydrogenation reaction step to the cracking reforming reaction step.Type: GrantFiled: March 23, 2012Date of Patent: July 5, 2016Assignee: JX Nippon Oil & Energy CorporationInventors: Shinichiro Yanagawa, Ryoji Ida, Masahide Kobayashi, Yasuyuki Iwasa
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Patent number: 9233892Abstract: A method for producing monocyclic aromatic hydrocarbons includes a step of introducing a feedstock oil into a cracking/reforming reactor, bringing the feedstock oil into contact with a catalyst, and causing the feedstock oil to react, a step of purifying and recovering the monocyclic aromatic hydrocarbons separated from the product produced in the reaction step, a step of hydrogenating a heavy fraction separated from the product, and a recycling step of returning a hydrogenation reactant of the heavy fraction to the cracking/reforming reaction step. In the recycling step, the hydrogenation reactant is introduced at a location different from an introduction location of the feedstock oil into the reactor so that a time during which the hydrogenation reactant is in contact with the catalyst in the reactor becomes shorter than a time during which the feedstock oil is in contact with the catalyst in the reactor.Type: GrantFiled: March 23, 2012Date of Patent: January 12, 2016Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATIONInventors: Shinichiro Yanagawa, Masahide Kobayashi, Ryoji Ida, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo
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Patent number: 9233889Abstract: The invention relates to hydroalkylation processes. In the processes, a hydrogen stream comprising hydrogen and an impurity is treated to reduce the amount of the impurity in the hydrogen stream. The hydrogen is then hydroalkylated with benzene to form at least some cyclohexylbenzene. The processes also relate to treating a benzene stream comprising benzene and an impurity with an adsorbent to reduce the amount of the impurity in the benzene stream. The hydroalkylation processes described herein may be used as part of a process to make phenol.Type: GrantFiled: April 4, 2011Date of Patent: January 12, 2016Assignee: ExxonMobil Chemical Patents Inc.Inventors: Tan-Jen Chen, Teng Xu, Terry E. Helton, Francisco M. Benitez, Charles M. Smith
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Patent number: 9103586Abstract: Processes to separate a light hydrocarbon stream comprising ethylene, ethane, and C3+ hydrocarbons into an ethylene stream, an ethane stream, and a C3+ hydrocarbon stream, including: feeding the light hydrocarbon stream to a deethanizer; separating the light hydrocarbons in the deethanizer to form a C3+ hydrocarbon bottoms stream and a C2-rich overhead stream comprising ethylene and ethane; separating the C2-rich stream in a C2-rectifier to form a first ethylene stream and an ethane-rich bottoms stream; and separating the ethane-rich bottoms stream in a C2-splitter to form a second ethylene stream and an ethane stream.Type: GrantFiled: December 16, 2006Date of Patent: August 11, 2015Assignee: KELLOGG BROWN & ROOT LLCInventor: Vijender Kumar Verma
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Publication number: 20150141717Abstract: A process for transalkylating a coal tar stream is described. A coal tar stream is provided, and is fractionated to provide at least one hydrocarbon stream having polycyclic aromatics. The hydrocarbon stream is hydrotreated in a hydrotreating zone, and then hydrocracked in a hydrocracking zone. A light aromatics stream is added to the hydrocracking zone. The light aromatics stream comprises one or more light aromatics having a ratio of methyl/aromatic available position that is lower than a ratio of methyl/aromatic available position for the hydrotreated stream. The hydrocracked stream is transalkylated in the hydrocracking zone.Type: ApplicationFiled: August 28, 2014Publication date: May 21, 2015Inventors: Stanley J. Frey, Paul T. Barger, Maureen L. Bricker, John Q. Chen, Peter K. Coughlin, James A. Johnson, Joseph A. Kocal, Matthew Lippmann, Vasant P. Thakkar, Kurt M. Vanden Bussche
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Publication number: 20150119614Abstract: A process is disclosed for hydrocracking a primary hydrocarbon feed and a diesel co-feed in a hydrocracking unit and hydrotreating a diesel product from the hydrocracking unit in a hydrotreating unit. The diesel stream fed through the hydrocracking unit is pretreated to reduce sulfur and ammonia and can be upgraded with noble metal catalyst.Type: ApplicationFiled: January 15, 2015Publication date: April 30, 2015Inventors: Peter Kokayeff, Paul R. Zimmerman
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Publication number: 20150087872Abstract: This invention discloses a process for making high viscosity index lubricating base oils having a viscosity index of at least 110 by co-feeding a ketone or a beta-keto-ester feedstock with a lubricant oil feedstock directly to a hydrocracking unit to produce a hydrocracked stream. Then at least a portion of the hydrocracked stream is treated under hydroisomerization conditions to produce a high viscosity index lubricating base oil. The process may involve bypassing a hydrotreating or hydrofinishing step, which may result in improved efficiency and economics in producing high viscosity index lubricating base oils.Type: ApplicationFiled: December 4, 2014Publication date: March 26, 2015Applicant: CHEVRON U.S.A. INC.Inventors: Stephen Joseph Miller, Sven Ivar Hommeltoft, Saleh Ali Elomari
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Patent number: 8975460Abstract: A process is proposed for preparing acetylene by the Sachsse-Bartholomé process by combustion of a natural gas/oxygen mixture in one or more burners to obtain a cracking gas which is cooled in two or more stages in burner columns, each burner having one or more burner columns assigned thereto, and said cracking gas being quenched with pyrolysis oil in the first cooling stage, to obtain a low boiler fraction comprising benzene, toluene and xylene from the one or more burner columns, which is cooled with direct cooling water and separated in a phase separator into an aqueous phase and an organic phase which comprises benzene, toluene and xylene and is fully or partly introduced to the top of the one or more burner columns as a return stream, wherein the organic phase comprising benzene, toluene and xylene from the phase separator, prior to full or partial recycling to the top of the one or more burner columns, is supplied to a selective hydrogenation over a catalyst which comprises at least one platinum group mType: GrantFiled: July 15, 2011Date of Patent: March 10, 2015Assignee: BASF SEInventors: Lucia Königsmann, Maximilian Vicari, Thomas Heidemann, Dirk Groβschmidt, Jürgen Michel
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Publication number: 20150011807Abstract: A highly efficient method for the conversion of a natural product into the high density fuel RJ-4 with concomitant evolution of isobutylene for conversion to fuels and polymers, more specifically, embodiments of the invention relate to efficient methods for the conversion of the renewable, linear terpene alcohol, linalool into a drop-in, high density fuel suitable for ramjet or missile propulsion.Type: ApplicationFiled: September 5, 2012Publication date: January 8, 2015Inventors: Benjamin G. Harvey, Heather A. Meylemans, Roxanne L. Quintana
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Patent number: 8927796Abstract: This invention discloses a process for making high viscosity index lubricating base oils having a viscosity index of at least 110 by co-feeding a ketone or a beta-keto-ester feedstock with a lubricant oil feedstock directly to a hydrocracking unit to produce a hydrocracked stream. Then at least a portion of the hydrocracked stream is treated under hydroisomerization conditions to produce a high viscosity index lubricating base oil. The process may involve bypassing a hydrotreating or hydrofinishing step, which may result in improved efficiency and economics in producing high viscosity index lubricating base oils.Type: GrantFiled: September 13, 2012Date of Patent: January 6, 2015Assignee: Chevron U.S.A. Inc.Inventors: Stephan Joseph Miller, Sven Ivar Hommeltoft, Saleh Ali Elomari
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Publication number: 20140371499Abstract: In a process for dealkylating a poly-alkylated aromatic compound, a feed comprising at least one poly-alkylated aromatic compound selected from polypropylbenzene, polybutylbenzene, and polycyclohexylbenzene is introduced into a reaction zone. The feed is then contacted in the reaction zone with an acid catalyst under conditions effective to dealkylate at least a portion of the poly-alkylated aromatic compound and produce a first reaction product comprising at least one mono-alkylated aromatic compound.Type: ApplicationFiled: August 29, 2014Publication date: December 18, 2014Inventors: Kun Wang, James R. Lattner
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Patent number: 8912377Abstract: The present invention relates to a method of producing aromatic products (benzene/toluene/xylene) and olefin products from petroleum fractions obtained by fluid catalytic cracking, and, more particularly, to a method of producing products comprising high-concentration aromatic products and high value-added light olefin products from light cycle oil obtained by fluid catalytic cracking.Type: GrantFiled: October 7, 2009Date of Patent: December 16, 2014Assignee: SK Innovation Co., Ltd.Inventors: Cheol Joong Kim, Tae Jin Kim, Do Woan Kim, Sung Won Kim, Sang Hun Oh, Sam Ryong Pakr, Seung Hoon Oh, Yoon Kyung Lee, Gyung Rok Kim, Hong Seok Jung, Eun Kyoung Kim, Byoung In Lee, Dae Hyun Choo
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Publication number: 20140303339Abstract: An apparatus and method are provided for processing hydrocarbon feeds. The method enhances the conversion of hydrocarbon feeds into conversion products, such as ethylene and propylene. In particular, the present techniques utilize a high-severity reactor integrated with another reactor type to convert hydrocarbons to other petrochemical products.Type: ApplicationFiled: December 20, 2011Publication date: October 9, 2014Applicant: ExxonMobil Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Frank Hershkowitz, Jason D. Davis
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Publication number: 20140303416Abstract: An apparatus and method are provided for processing hydrocarbon feeds. The method may pass a pyrolysis feed to a thermal pyrolysis reactor and expose at least a portion of the pyrolysis feed to high-severity operating conditions in a thermal pyrolysis reactor, wherein the thermal pyrolysis reactor is operated at operating conditions that include pressure?36 psig and provide a reactor product that has a C3+ to C2 unsaturate weight ratio?0.5.Type: ApplicationFiled: December 20, 2011Publication date: October 9, 2014Applicant: ExxonMobil Chemical Patents Inc.Inventors: Paul F. Keusenkothen, Frank Hershkowitz
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Publication number: 20140296589Abstract: A process is presented for the purification of 1,3 butadiene. The process is for treating a butadiene stream from an oxidative dehydrogenation unit, where a butane stream is dehydrogenated, generating a butadiene rich stream. The butadiene rich stream is fractionated and passed through a butadiene recovery unit. Additional C4 compounds recovered from the fractionation bottoms stream are further processed for increasing yields of butadiene.Type: ApplicationFiled: March 28, 2013Publication date: October 2, 2014Applicant: UOP LLCInventor: Steven L. Krupa
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Publication number: 20140288339Abstract: A process and apparatus are disclosed for hydrocracking hydrocarbon feed in a hydrocracking unit and hydrotreating a diesel product from the hydrocracking unit in a hydrotreating unit. The hydrocracking unit and the hydrotreating unit share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. A warm separator separates recycle gas and hydrocarbons from diesel in the hydrotreating effluent, so fraction of the diesel is relatively simple. The warm separator also keeps the diesel product separate from the more sulfurous diesel in the hydrocracking effluent, and still retains heat needed for fractionation of lighter components from the low sulfur diesel product.Type: ApplicationFiled: June 4, 2014Publication date: September 25, 2014Inventors: Paul R. Zimmerman, Andrew P. Wieber
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Publication number: 20140275673Abstract: A process for producing light olefins and aromatics, which comprises reacting a feedstock by contacting with a catalytic cracking catalyst in at least two reaction zones, wherein the reaction temperature of at least one reaction zone among the reaction zones downstream of the first reaction zone is higher than that of the first reaction zone and its weight hourly space velocity is lower than that of the first reaction zone, separating the spent catalyst from the reaction product vapor, regenerating the separated spent catalyst and returning the regenerated catalyst to the reactor, and separating the reaction product vapor to obtain the desired products, light olefins and aromatics. This process produces maximum light olefins such as propylene, ethylene, etc from heavy feedstocks, wherein the yield of propylene exceeds 20% by weight, and produces aromatics such as toluene, xylene, etc at the same time.Type: ApplicationFiled: June 2, 2014Publication date: September 18, 2014Applicants: CHINA PETROLEUM CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPECInventors: Jun LONG, Zhijian DA, Dadong LI, Xieqing WANG, Xingtian SHU, Jiushun ZHANG, Hong NIE, Chaogang XIE, Zhigang ZHANG, Wei WANG
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Publication number: 20140275672Abstract: Methods and systems for idling a hydrocracker are provided. The method can include hydrocracking a hydrocarbon in the presence of a catalyst and hydrogen in a reactor to produce a hydrocracked product. A kill agent can be introduced to the reactor in an amount sufficient to reduce hydrocracking by at least 10% therein. In some examples, the kill agent can include one or more nitrogen-containing compounds, such as ammonia, amines, anilines, ammonia-containing compounds, amine-containing compounds, or, aniline-containing compounds. In some examples, the catalyst can include one or more Group VIII metals (e.g., cobalt, nickel, palladium, iron, alloys thereof), one or more Group VIB metals (e.g., molybdenum, tungsten, alloys thereof, or oxides thereof), and a catalyst support, such as a zeolite.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Inventors: Sujatha Krishnamurthy, Cassandra Schoessow, Douglas Piotter, Anand Subramanian
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Patent number: 8828217Abstract: Diesel fuel is produced from a feedstock that is at least partially biocomponent in origin. A feedstock is treated in a reactor including one or more hydrotreating zones having a continuous gas phase. The liquid effluent from the hydrotreating zones is then hydroprocessed in a hydroprocessing zone having a continuous liquid phase, such as a hydroprocessing zone in the same reactor. The hydroprocessing zone can be operated under effective catalytic dewaxing conditions.Type: GrantFiled: June 24, 2011Date of Patent: September 9, 2014Assignee: ExxonMobil Research and Engineering CompanyInventors: Patrick L. Hanks, William E. Lewis
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Publication number: 20140228607Abstract: An olefin production system having a pyrolysis furnace that is configured to thermally crack hydrocarbon feedstock into olefins and a fuel gas system having a hydrotreater system that is configured to hydrogenate process gas. The pyrolysis furnace has a burner and the fuel gas system is configured to supply the hydrogenated process gas as fuel gas to the burner.Type: ApplicationFiled: February 10, 2014Publication date: August 14, 2014Applicant: Equistar Chemicals, LPInventor: Richard B. Halsey
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Publication number: 20140221709Abstract: A process for upgrading residuum hydrocarbons is disclosed. The process may include: contacting a residuum hydrocarbon fraction and hydrogen with a first hydroconversion catalyst in a first ebullated bed hydroconversion reactor system; recovering a first effluent from the first ebullated bed hydroconversion reactor system; solvent deasphalting a vacuum residuum fraction to produce a deasphalted oil fraction and an asphalt fraction; contacting the deasphalted oil fraction and hydrogen with a second hydroconversion catalyst in a second hydroconversion reactor system; recovering a second effluent from the second hydroconversion reactor system; and fractionating the first effluent from the first ebullated bed hydroconversion reactor system and the second effluent from the second hydroconversion reactor system to recover one or more hydrocarbon fractions and the vacuum residuum fraction in a common fractionation system.Type: ApplicationFiled: February 4, 2013Publication date: August 7, 2014Applicant: LUMMUS TECHNOLOGY INC.Inventors: Mario C. Baldassari, Ujjal K. Mukherjee, Ann-Marie Olsen, Marvin I. Greene
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Publication number: 20140213836Abstract: A heated petroleum-derived hydrocarbon is contacted with a triglyceride feed in a thermal cracking zone to decompose and remove impurities prior to hydrotreating the mixture to fuel range hydrocarbon. This process allows the use of a variety of low cost triglyceride feeds while reducing fouling of process equipment and catalyst. The process also reduces the use of chemicals required for conventional degumming of triglyceride feeds.Type: ApplicationFiled: March 31, 2014Publication date: July 31, 2014Applicant: PHILLIPS 66 COMPANYInventors: Jianhua YAO, Edward L. SUGHRUE, II, Dhananjay B. GHONASGI, Xiaochun XU
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Publication number: 20140200377Abstract: The present method for producing monocyclic aromatic hydrocarbons is a method for producing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms. This method includes a cracking and reforming reaction step of bringing oil feedstock into contact with a catalyst to cause a reaction and obtain a product containing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms and a heavy fraction having 9 or more carbon atoms, a purification and recovery step of purifying and recovering the monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms separated from the product formed by the cracking and reforming reaction step, and a first returning step of returning at least a portion of toluene obtained by the purification and recovery step to the cracking and reforming reaction step.Type: ApplicationFiled: May 24, 2012Publication date: July 17, 2014Applicants: CHIYODA CORPORATION, JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Yasuyuki Iwasa, Ryoji Ida, Masahide Kobayashi, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Akira Utatsu
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Publication number: 20140163273Abstract: An apparatus and method are provided for processing hydrocarbon feeds. The method enhances the conversion of hydrocarbon feeds into ethylene. In particular, the present techniques expose feed containing hydrocarbons to high-severity operating conditions in a pyrolysis reactor and separate the reactor product from the reactor into a first product having hydrogen and a second product including ?90 mole percent of the acetylene in the reactor product. Then, the second product is reacted with a catalyst in a converter to form ethylene.Type: ApplicationFiled: December 20, 2011Publication date: June 12, 2014Inventors: Paul F. Keusenkothen, Frank Hershkowitz, Jason D. Davis
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Publication number: 20140155663Abstract: Process for the hydroconversion of heavy oils, selected from crude oils, heavy crude oils, bitumens from tar sands, distillation residues, distillation heavy cuts, distillation deasphalted residues, vegetable oils, oils from coal and oil shale, oils from the thermodecomposition of waste material, polymers, biomasses, comprising sending the heavy oil to a hydroconversion area, effected in one or more ebullated bed reactors, wherein hydrogen is introduced, in the presence of a suitable heterogeneous, supported, hydroconversion catalyst, in addition to a suitable hydrogenation catalyst, nano-dispersed in said heavy oil, and sending the stream coming from the hydroconversion area to a separation area, in which the separated liquid fraction, containing the nano-dispersed catalyst, is recycled to the ebullated bed reactor(s).Type: ApplicationFiled: November 25, 2013Publication date: June 5, 2014Applicant: ENI S.P.A.Inventors: Giacomo RISPOLI, Giuseppe BELLUSSI, Nicoletta PANARITI, Lorenzo TAGLIABUE
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Publication number: 20140148627Abstract: Cellulose and hemicellulose from biomass can be broken down to C6 and C5 sugars and further converted to corresponding sugar alcohols. It is now found that a new catalyst, MoS2, is active for the hydrogenation of sugar alcohols to hydrocarbons. Combining the technologies listed above allows us to convert the cellulose/hemicellulose to liquid hydrocarbons.Type: ApplicationFiled: January 30, 2014Publication date: May 29, 2014Applicant: PHILLIPS 66 COMPANYInventors: Madhu ANAND, Jianhua YAO, Edward L. SUGHRUE, II
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Publication number: 20140135542Abstract: A new method of producing fuel from biological oils and fats is provided, which comprises following steps: (a) proceeding with a catalytic cracking-deoxygenation reaction for the biological oils and fats under heating in the presence of a cracking-deoxygenation catalyst; (b) mixing the product of step (a) with hydrogen gas; and (c) proceeding with a catalytic hydrodeoxygenation reaction for the mixture from step (b) under heating in the presence of a hydrodeoxygenation catalyst. By means of the method of the present invention, clean fuel produced by using biological oils and fats as raw materials is compatible to the fuel composition produced from crude oil refining.Type: ApplicationFiled: June 12, 2012Publication date: May 15, 2014Applicants: DALIAN UNIVERSITY OF TECHNOLOGY, ECO ENVIRONMENTAL ENERGY RESEARCH INSTITUTE LIMITEDInventors: Changhai Liang, Bin Xu, Philip Siu, Lei Wang, Xiao Chen, Zhengfeng Shao, Zihui Xiao
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Publication number: 20140073826Abstract: This invention discloses a process for making high viscosity index lubricating base oils having a viscosity index of at least 110 by co-feeding a ketone or a beta-keto-ester feedstock with a lubricant oil feedstock directly to a hydrocracking unit to produce a hydrocracked stream. Then at least a portion of the hydrocracked stream is treated under hydroisomerization conditions to produce a high viscosity index lubricating base oil. The process may involve bypassing a hydrotreating or hydrofinishing step, which may result in improved efficiency and economics in producing high viscosity index lubricating base oils.Type: ApplicationFiled: September 13, 2012Publication date: March 13, 2014Applicant: Chevron U.S.A. Inc.Inventors: Stephen Joseph Miller, Sven Ivar Hommeltoft, Saleh Ali Elomari
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Publication number: 20140066673Abstract: A method for producing monocyclic aromatic hydrocarbons includes a cracking reforming reaction step of bringing an oil feedstock into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate, and causing the oil feedstock to react, thereby obtaining a product containing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms, a hydrogenation reaction step of hydrogenating a product produced in the cracking reforming reaction step, a monocyclic aromatic hydrocarbon recovery step of recovering monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms separated from a hydrogenation product obtained in the hydrogenation reaction step and a recycling step of returning a heavy fraction having 9 or more carbon atoms separated from the hydrogenation product obtained in the hydrogenation reaction step to the cracking reforming reaction step.Type: ApplicationFiled: March 23, 2012Publication date: March 6, 2014Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Ryoji Ida, Masahide Kobayashi, Yasuyuki Iwasa
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Publication number: 20140066672Abstract: Provided is a method for producing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms, the method including a cracking reforming reaction step of bringing feedstock oil into contact with a catalyst to effect a reaction; a step of purifying and recovering monocyclic aromatic hydrocarbons separated from the reaction step; and (1) a step of hydrogenating a heavy fraction separated from the reaction step; a dilution step of returning a portion of the hydrogenation product as a diluent oil to the hydrogenation step; and a step of returning the hydrogenation product to the reaction step; or (2) a step of adding a diluent to the heavy fraction separated from the reaction step; a step of hydrogenating the mixture; and a step of returning the hydrogenation product to the reaction step.Type: ApplicationFiled: March 23, 2012Publication date: March 6, 2014Applicants: CHIYODA CORPORATION, JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Ryoji Ida, Yasuyuki Iwasa, Masahide Kobayashi, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo
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Publication number: 20140039232Abstract: This invention concerns methods of identifying genetic alterations with which a microbe can be used to produce fatty acids at a large amount for making biofuels. Also disclosed are microbes with such genetic alterations and uses thereof.Type: ApplicationFiled: March 1, 2012Publication date: February 6, 2014Applicants: UNIVERSITY OF SOUTH AUSTRALIA, Rutgers, The State University of New JerseyInventor: Desmond Siu Men Lun
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Publication number: 20140024867Abstract: A method for producing a hydrocarbon material from a C5 raffinate which is obtained as an extracted residual oil after separating at least part of the isoprene by extraction distillation from a C5 fraction which is produced as a byproduct when thermally cracking naphtha to produce ethylene and has C5 organic compounds as main ingredients comprising, a gas-phase thermal cracking step of gasifying the C5 raffinate to thermally crack at least part of the C10 diolefins which are contained in the gasified C5 raffinate, a desulfurization step, after the gas-phase thermal cracking step, of removing at least part of the sulfur-containing ingredients which are contained in the gasified C5 raffinate after the gas-phase thermal cracking step in the gas-phase state, and a hydrogen addition step, after the desulfurization step, of hydrogenating at least part of the carbon-carbon double bonds of at least one selected from diolefins and olefins which are contained in the gasified C5 raffinate after the desulfurization stepType: ApplicationFiled: March 30, 2012Publication date: January 23, 2014Applicant: ZEON CORPORATIONInventors: Yoshihide Yachi, Hideaki Miki
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Publication number: 20130291430Abstract: In one embodiment, the present application discloses methods to selectively synthesize higher alcohols and hydrocarbons useful as fuels and industrial chemicals from syngas and biomass. Ketene and ketonization chemistry along with hydrogenation reactions are used to synthesize fuels and chemicals. In another embodiment, ketene used to form fuels and chemicals may be manufactured from acetic acid which in turn can be synthesized from synthesis gas which is produced from coal, biomass, natural gas, etc.Type: ApplicationFiled: March 28, 2013Publication date: November 7, 2013Applicant: Pioneer EnergyInventors: John T. Henri, Jan Zygmunt, Mark Bergren, Robert Zubrin
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Publication number: 20130253239Abstract: A process for producing heavy alkyl aromatics is presented. The process utilizes low molecular weight hydrocarbons for generating larger alkyl groups. The hydrocarbons can be generated from a variety of sources including Fischer-Tropsch liquids. The process includes oligomerization of low molecular weight olefins to larger olefins. The larger olefins are passed to an alkylation reactor to alkylate aromatic compounds.Type: ApplicationFiled: March 23, 2012Publication date: September 26, 2013Applicant: UOP LLCInventors: Andrea G. Bozzano, Jeffery C. Bricker, Bryan K. Glover
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Publication number: 20130184506Abstract: Disclosed is a method for producing aromatic hydrocarbons including a cracking reforming reaction step of bringing a feedstock having a 10 vol % distillation temperature of 140° C. or higher and a 90 vol % distillation temperature of 380° C. or lower, into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate to cause the feedstock to react with the catalyst, and thereby obtaining a product including monocyclic aromatic hydrocarbons having 6 to 8 carbon numbers and a heavy oil fraction having 9 or more carbon numbers; a step of separating the monocyclic aromatic hydrocarbons and the heavy oil fraction from the product obtained from the cracking reforming reaction step; a step of purifying the monocyclic aromatic hydrocarbons separated in the separating step, and collecting the hydrocarbons; and a step of separating naphthalene compounds from the heavy oil fraction separated in the separating step, and collecting the naphthalene compounds.Type: ApplicationFiled: September 14, 2011Publication date: July 18, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Ryoji Ida, Masahide Kobayashi, Yasuyuki Iwasa
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Publication number: 20130165712Abstract: A process for the preparation of an olefin product comprising ethylene, comprising a) cracking a cracker feedstock to obtain a cracker effluent comprising olefins; b) converting an oxygenate feedstock in an oxygenate-to-olefins conversion system, comprising a reaction zone in which an oxygenate feedstock is contacted a catalyst to obtain a conversion effluent comprising ethylene and/or propylene; c) combining at least part of the cracker effluent and at least part of the conversion effluent to obtain a combined effluent wherein the combined effluent comprises a C4 portion and a C3 portion; d) separating at least a part of the propylene from the combined effluent to form a combined propylene stream; e) separating at least a part of the C4 portion from the combined effluent to form a C4 stream; and f) recycling at least a part of the combined propylene stream as recycled propylene to step b).Type: ApplicationFiled: December 27, 2012Publication date: June 27, 2013Applicant: SHELL OIL COMPANYInventor: Shell Oil Company
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Publication number: 20130144093Abstract: The present invention generally relates to a method for sequestering carbon dioxide. Biomass is converted into paraffinic hydrocarbons. The paraffinic hydrocarbons are steam cracked into olefins. The olefins are polymerized into non-biodegradable polyolefins.Type: ApplicationFiled: January 24, 2013Publication date: June 6, 2013Inventor: Ramin Abhari
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Publication number: 20130137907Abstract: The present invention describes a process for the conversion of a heavy feedstock for improving the production and selectivity for middle distillate, said process using a catalytic cracking unit followed by a unit for selective hydrogenation of the heavy distillate cut (HCO) or any other cut rich in triaromatic compounds before recycling it to the FCC reaction zone in order to maximize the middle distillate cut.Type: ApplicationFiled: November 21, 2012Publication date: May 30, 2013Applicant: IFP ENERGIES NOUVELLESInventor: IFP ENERGIES NOUVELLES
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Publication number: 20130066122Abstract: Conditions selected for lubricant base oil production can be used to also produce a high quality diesel product. The diesel product can have a cetane index or cetane number of at least 55, corresponding to a high value diesel fuel. The diesel product can also have good cold flow properties, such as a pour point of ?40° C. or less and/or a cloud point of 25° C. or less. Additionally, the sulfur content of the diesel product can be low, such as less than 1 wppm. This can allow the diesel product to be blended with other potential diesel boiling range products that have a higher sulfur content while still meeting an overall diesel fuel specification. The aromatics content can also be low, allowing the premium diesel to comply with various regulatory requirements.Type: ApplicationFiled: September 12, 2012Publication date: March 14, 2013Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Eric D. Joseck, Michael Brian Carroll, David Mentzer
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Publication number: 20130018213Abstract: Embodiments of methods for making renewable diesel by deoxygenating (decarboxylating/decarbonylating/dehydrating) fatty acids to produce hydrocarbons are disclosed. Fatty acids are exposed to a catalyst selected from a) Pt and MO3 on ZrO2 (M is W, Mo, or a combination thereof), or b) Pt/Ge or Pt/Sn on carbon, and the catalyst decarboxylates at least 10% of the fatty acids. In particular embodiments, the catalyst consists essentially of 0.7 wt % Pt and 12 wt % WO3, relative to a mass of catalyst, or the catalyst consists essentially of a) 5 wt % Pt and b) 0.5 wt % Ge or 0.5 wt % Sn, relative to a mass of catalyst. Deoxygenation is performed without added hydrogen and at less than 100 psi. Disclosed embodiments of the catalysts deoxygenate at least 10% of fatty acids in a fatty acid feed, and remain capable of deoxygenating fatty acids for at least 200 minutes to more than 350 hours.Type: ApplicationFiled: September 14, 2012Publication date: January 17, 2013Inventors: Richard T. Hallen, Karl O. Albrecht, Heather M. Brown, James F. White
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Publication number: 20130006027Abstract: A method for producing monocyclic aromatic hydrocarbons of 6 to 8 carbon number from a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and a 90 volume % distillation temperature of not more than 380° C., the method including: a cracking and reforming reaction step of obtaining a product containing monocyclic aromatic hydrocarbons of 6 to 8 carbon number from the feedstock oil, a refining and collection step of refining and collecting monocyclic aromatic hydrocarbons of 6 to 8 carbon number that have been separated from the product, a hydrogenation reaction step of hydrogenating a heavy fraction of 9 or more carbon number separated from the product, and a recycling step of returning the heavy fraction hydrogenation reaction product obtained in the hydrogenation reaction step to the cracking and reforming reaction step.Type: ApplicationFiled: March 25, 2011Publication date: January 3, 2013Inventors: Shinichiro Yanagawa, Masahide Kobayashi
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Publication number: 20120022308Abstract: A process is proposed for preparing acetylene by the Sachsse-Bartholomé process by combustion of a natural gas/oxygen mixture in one or more burners to obtain a cracking gas which is cooled in two or more stages in burner columns, each burner having one or more burner columns assigned thereto, and said cracking gas being quenched with pyrolysis oil in the first cooling stage, to obtain a low boiler fraction comprising benzene, toluene and xylene from the one or more burner columns, which is cooled with direct cooling water and separated in a phase separator into an aqueous phase and an organic phase which comprises benzene, toluene and xylene and is fully or partly introduced to the top of the one or more burner columns as a return stream, wherein the organic phase comprising benzene, toluene and xylene from the phase separator, prior to full or partial recycling to the top of the one or more burner columns, is supplied to a selective hydrogenation over a catalyst which comprises at least one platinum group mType: ApplicationFiled: July 15, 2011Publication date: January 26, 2012Applicant: BASF SEInventors: Lucia Königsmann, Maximilian Vicari, Thomas Heidemann, Dirk Großschmidt, Jürgen Michel