Patents by Inventor Yasuyuki Iwasa

Yasuyuki Iwasa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210214288
    Abstract: A method for producing a monocyclic aromatic hydrocarbon having 6 to 8 carbon atoms, including bringing a raw material which contains a light hydrocarbon having 2 to 7 carbon atoms as a main component into contact with a catalyst composition for producing a monocyclic aromatic hydrocarbon having 6 to 8 carbon atoms. The catalyst composition for producing a monocyclic aromatic hydrocarbon having 6 to 8 carbon atoms is coated with an amorphous silicon oxide compound and contains a crystalline aluminosilicate, and the silicon oxide compound is a silicon oxide compound derived from a compound represented by XnSi(OR)4-n, where X represents a hydrogen atom or an alkyl group, R represents an alkyl group, and n represents an integer of 0 to 4.
    Type: Application
    Filed: September 2, 2019
    Publication date: July 15, 2021
    Applicants: ENEOS CORPORATION, THE UNIVERSITY OF TOKYO, KOGAKUIN UNIVERSITY
    Inventors: Hideo TSUNEOKA, Yasuyuki IWASA, Yasuhiro ARAKI, Kazu OKUMURA, Masaru OGURA
  • Patent number: 10851313
    Abstract: A method of producing a lower olefin and BTX from stock oils selected from at least two kinds of oils is provided. The method includes a first catalytic cracking step of bringing one stock oil A into contact with a catalytic cracking catalyst; a second catalytic cracking step of bringing one stock oil B, having an aromatic component content smaller than that of the stock oil A, into contact with the catalytic cracking catalyst; and a separation and collection step of collecting the lower olefins and BTX from a product generated in the first and second catalytic cracking steps. A contact time A during which the stock oil A is in contact with the catalytic cracking catalyst in the first catalytic cracking step is longer than a contact time B during which the stock oil B is in contact with the catalytic cracking catalyst in the second catalytic cracking step.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: December 1, 2020
    Assignees: ENEOS CORPORATION, CHIYODA CORPORATION
    Inventors: Ryoji Ida, Yasuyuki Iwasa, Masahide Kobayashi, Yukihiro Yoshiwara, Shinichiro Yanagawa, Yasuhiro Watanabe, Takashi Aozasa, Shinji Hyodo
  • Publication number: 20190316048
    Abstract: A method of producing a lower olefin and BTX from stock oils selected from at least two kinds of oils is provided. The method includes a first catalytic cracking step of bringing one stock oil A into contact with a catalytic cracking catalyst; a second catalytic cracking step of bringing one stock oil B, having an aromatic component content smaller than that of the stock oil A, into contact with the catalytic cracking catalyst; and a separation and collection step of collecting the lower olefins and BTX from a product generated in the first and second catalytic cracking steps. A contact time A during which the stock oil A is in contact with the catalytic cracking catalyst in the first catalytic cracking step is longer than a contact time B during which the stock oil B is in contact with the catalytic cracking catalyst in the second catalytic cracking step.
    Type: Application
    Filed: July 12, 2017
    Publication date: October 17, 2019
    Inventors: Ryoji IDA, Yasuyuki IWASA, Masahide KOBAYASHI, Yukihiro YOSHIWARA, Shinichiro YANAGAWA, Yasuhiro WATANABE, Takashi AOZASA, Shinji HYODO
  • Patent number: 10173203
    Abstract: A method is provided for producing an aluminosilicate catalyst. The method includes a first phosphorus treatment step of treating a crystalline aluminosilicate with a first phosphorus compound, a mixing and firing step of mixing the phosphorus-treated crystalline aluminosilicate obtained in the first phosphorus treatment step with a binder and then performing firing to form an aluminosilicate mixture, and a second phosphorus treatment step of treating the aluminosilicate mixture with a second phosphorus compound.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: January 8, 2019
    Assignee: JXTG Nippon Oil & Energy Corporation
    Inventors: Yasuyuki Iwasa, Masahide Kobayashi, Shinichiro Yanagawa
  • Patent number: 10137441
    Abstract: A method is provided for producing an aluminosilicate catalyst. The method includes a first phosphorus treatment step of treating a crystalline aluminosilicate with a first phosphorus compound, a mixing and firing step of mixing the phosphorus-treated crystalline aluminosilicate obtained in the first phosphorus treatment step with a binder and then performing firing to form an aluminosilicate mixture, and a second phosphorus treatment step of treating the aluminosilicate mixture with a second phosphorus compound.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: November 27, 2018
    Assignee: JXTG Nippon Oil & Energy Corporation
    Inventors: Yasuyuki Iwasa, Masahide Kobayashi, Shinichiro Yanagawa
  • Patent number: 9862897
    Abstract: The method for producing a monocyclic aromatic hydrocarbon includes a cracking and reforming reaction step in which a catalyst for producing a monocyclic aromatic hydrocarbon containing crystalline aluminosilicate which has been subjected to a heat treatment in an atmosphere containing water vapor in advance is loaded into a fixed-bed reactor, and a feedstock oil having a 10 volume % distillate temperature of 140° C. or higher and a 90 volume % distillate temperature of 390° C. or lower is brought into contact with the catalyst to cause a reaction, so as to obtain a product containing a monocyclic aromatic hydrocarbon having 6 to 8 carbon atoms.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: January 9, 2018
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Yasuyuki Iwasa, Shinichiro Yanagawa, Masahide Kobayashi
  • Patent number: 9862654
    Abstract: A method for producing xylene from feedstock oil includes a cracking/reforming reaction step of bringing the feedstock oil into contact with a catalyst to produce monocyclic aromatic hydrocarbons; a separation/recovery step of separating and recovering, from a product obtained by the cracking/reforming reaction step, a fraction A containing monocyclic aromatic hydrocarbons having a 10 vol % distillation temperature of 75° C. or higher and a 90 vol % distillation temperature of 140° C. or lower, a xylene fraction containing xylene, and a fraction B containing monocyclic aromatic hydrocarbons having a 10 vol % distillation temperature of 145° C. or higher and a 90 vol % distillation temperature of 215° C. or lower; and a xylene conversion step of bringing a mixed fraction obtained by mixing the fractions A and B with each other into contact with a catalyst containing a solid acid to convert the mixed fraction into xylene.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 9, 2018
    Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATION
    Inventors: Shinichiro Yanagawa, Yuichiro Fujiyama, Yasuyuki Iwasa, Ryoji Ida, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Akira Utatsu
  • Patent number: 9828309
    Abstract: Method for producing monocyclic aromatic hydrocarbons includes a cracking and reforming reaction step of obtaining products containing monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms and a heavy fraction having 9 or more carbon atoms by bringing the feedstock oil into contact with a catalyst for producing monocyclic aromatic hydrocarbons containing crystalline aluminosilicate to cause a reaction, a catalyst separation step of separating and removing the catalyst for producing monocyclic aromatic hydrocarbons together with tricyclic aromatic hydrocarbons contained in the products from a mixture of the products and a small amount of the catalyst for producing monocyclic aromatic hydrocarbons carried by the products, both of which are derived in the cracking and reforming reaction step, and a purification and recovery step of purifying and recovering the monocyclic aromatic hydrocarbons having 6 to 8 carbon atoms which are separated from the products formed in the cracking and reforming reaction step
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: November 28, 2017
    Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATION
    Inventors: Shinichiro Yanagawa, Yuichiro Fujiyama, Yasuyuki Iwasa, Ryoji Ida, Masahide Kobayashi, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo
  • Patent number: 9815047
    Abstract: The catalyst for producing aromatic hydrocarbon is for producing monocyclic aromatic hydrocarbon having 6 to 8 carbon number from oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower and contains crystalline aluminosilicate and phosphorus. A molar ratio (P/Al ratio) between phosphorus contained in the crystalline aluminosilicate and aluminum of the crystalline aluminosilicate is from 0.1 to 1.0. The production method of monocyclic aromatic hydrocarbon is a method of bringing oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower into contact with the catalyst for producing monocyclic aromatic hydrocarbon.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 14, 2017
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
  • Patent number: 9776934
    Abstract: A method of producing monocyclic aromatic hydrocarbons includes bringing a light feedstock oil having a 10 vol % distillation temperature of 140° C. to 205° C. and a 90 vol % distillation temperature of 300° C. or lower, which has been prepared from a feedstock oil 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, in which a content ratio of monocyclic naphthenobenzenes in the light feedstock oil is adjusted by distillation of the feedstock oil such that the content ratio of monocyclic naphthenobenzenes in the light feedstock oil is higher than a content ratio of monocyclic naphthenobenzenes in the feedstock oil.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: October 3, 2017
    Assignee: JX Nippon Oil Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Ryoji Ida, Yasuyuki Iwasa
  • Publication number: 20170189894
    Abstract: A method is provided for producing an aluminosilicate catalyst. The method includes a first phosphorus treatment step of treating a crystalline aluminosilicate with a first phosphorus compound, a mixing and firing step of mixing the phosphorus-treated crystalline aluminosilicate obtained in the first phosphorus treatment step with a binder and then performing firing to form an aluminosilicate mixture, and a second phosphorus treatment step of treating the aluminosilicate mixture with a second phosphorus compound.
    Type: Application
    Filed: April 3, 2015
    Publication date: July 6, 2017
    Inventors: Yasuyuki IWASA, Masahide KOBAYASHI, Shinichiro YANAGAWA
  • Patent number: 9573864
    Abstract: A method of producing monocyclic aromatic hydrocarbons includes bringing a feedstock oil 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, in which a content ratio of monocyclic naphthenobenzenes in the feedstock oil is adjusted to 10 mass % to 90 mass %, by mixing a hydrocarbon oil A having a 10 vol % distillation temperature of 140° C. or higher and a 90 vol % distillation temperature of 380° C. or lower with a hydrocarbon oil B containing more monocyclic naphthenobenzenes than the hydrocarbon oil A.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: February 21, 2017
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
  • Patent number: 9487457
    Abstract: 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: Grant
    Filed: May 24, 2012
    Date of Patent: November 8, 2016
    Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATION
    Inventors: Shinichiro Yanagawa, Yasuyuki Iwasa, Ryoji Ida, Masahide Kobayashi, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Akira Utatsu
  • Patent number: 9388096
    Abstract: A producing method of monocyclic aromatic hydrocarbons in which reaction products including monocyclic aromatic hydrocarbons are produced by bringing an oil feedstock and an aromatic production catalyst into contact with each other, the oil feedstock having a 10 volume % distillation temperature of more than or equal to 140° C. and a 90 volume % distillation temperature of less than or equal to 380° C., the method including the steps of: introducing the oil feedstock into a fluidized-bed reaction apparatus housing the aromatic production catalyst; bringing the oil feedstock and the aromatic production catalyst into contact with each other in the fluidized-bed reaction apparatus; and introducing steam into the fluidized-bed reaction apparatus based on the introducing amount of the oil feedstock per hour.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: July 12, 2016
    Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATION
    Inventors: Shinichiro Yanagawa, Yasuyuki Iwasa, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo, Osamu Hirohata
  • Patent number: 9382484
    Abstract: In the production method of monocyclic aromatic hydrocarbons, oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower is brought into contact with a catalyst for producing monocyclic aromatic hydrocarbons that includes a mixture containing a first catalyst which contains crystalline aluminosilicate containing gallium and/or zinc and phosphorus and a second catalyst which contains crystalline aluminosilicate containing phosphorus.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 5, 2016
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
  • Patent number: 9382174
    Abstract: 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: Grant
    Filed: March 23, 2012
    Date of Patent: July 5, 2016
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Ryoji Ida, Masahide Kobayashi, Yasuyuki Iwasa
  • Patent number: 9382173
    Abstract: 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: Grant
    Filed: March 23, 2012
    Date of Patent: July 5, 2016
    Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATION
    Inventors: Shinichiro Yanagawa, Ryoji Ida, Yasuyuki Iwasa, Masahide Kobayashi, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo
  • Patent number: 9255042
    Abstract: A producing method of monocyclic aromatic hydrocarbons from the oil feedstock having a 10 volume % distillation temperature of more than or equal to 140° C. and a 90 volume % distillation temperature of less than or equal to 380° C. by bringing into contact with an aromatic production catalyst includes the steps of: introducing the oil feedstock into a cracking and reforming reaction apparatus housing the aromatic production catalyst; bringing the oil feedstock and the aromatic production catalyst into contact with each other at the inside of the cracking and reforming reaction apparatus; heating the oil feedstock in advance before introducing the oil feedstock into the cracking and reforming reaction apparatus and forming a two-phase gas-liquid stream; separating the two-phase gas-liquid stream into a gas fraction and a liquid fraction; and introducing the gas fraction and the liquid fraction at different positions of the cracking and reforming reaction apparatus.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: February 9, 2016
    Assignees: JX Nippon Oil & Energy Corporation, CHIYODA CORPORATION
    Inventors: Shinichiro Yanagawa, Yasuyuki Iwasa, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo
  • Publication number: 20160024400
    Abstract: The method for producing a monocyclic aromatic hydrocarbon includes a cracking and reforming reaction step in which a catalyst for producing a monocyclic aromatic hydrocarbon containing crystalline aluminosilicate which has been subjected to a heat treatment in an atmosphere containing water vapor in advance is loaded into a fixed-bed reactor, and a feedstock oil having a 10 volume % distillate temperature of 140° C. or higher and a 90 volume % distillate temperature of 390° C. or lower is brought into contact with the catalyst to cause a reaction, so as to obtain a product containing a monocyclic aromatic hydrocarbon having 6 to 8 carbon atoms.
    Type: Application
    Filed: February 21, 2014
    Publication date: January 28, 2016
    Inventors: Yasuyuki IWASA, Shinichiro YANAGAWA, Masahide KOBAYASHI
  • Patent number: 9200217
    Abstract: The present invention provides a method for producing a gas oil composition which contains a cracked base gas oil with a poor oxidation stability but is enhanced in oxidation stability resulting in less sludge or deposit formation. The method comprises blending 0.5 to 15 percent by volume of a cracked reformed base oil having a total aromatic content of 80 to 100 percent by volume, a bicyclic aromatic content of 40 to 95 percent by volume, a 10 vol. % distillation temperature of 160 to 250° C. and a 90 vol. % distillation temperature of 260 to 330° C. and 10 to 70 percent by volume of a cracked base gas oil thereby producing a gas oil composition with an induction period of 60 minutes or longer, a sulfur content of 10 ppm by mass or less and a cetane number of 45 or greater.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: December 1, 2015
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shunta Sagawa, Yasuyuki Iwasa, Shinichiro Yanagawa