Patents by Inventor Dejin Kong

Dejin Kong 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).

  • Patent number: 10435348
    Abstract: The present invention relates to a process for producing aromatics, a process for producing p-xylene and terephthalic acid, and a device for producing aromatics. The process for producing aromatics at least comprises a step of producing C8 olefin from a compound having a lactone group and a step of producing aromatics from the C8 olefin. The process for producing aromatics has the characters of high yield of aromatics and high selectivity to xylene.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: October 8, 2019
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC
    Inventors: Dejin Kong, Junlin Zheng, Qi Song, Xiaolan Qi, Xuan Xu, Xiangdong Jiang, Deqin Yang
  • Patent number: 10358606
    Abstract: The present invention relates to a process for producing aromatics, p-xylene and terephthalic acid. The process for producing aromatics comprises a step of contacting an oxygen-containing raw material with an aromatization catalyst, under aromatization reaction conditions, to produce aromatics. The process for producing aromatics has an advantage of high yield of carbon as aromatics.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 23, 2019
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC
    Inventors: Qi Song, Junlin Zheng, Dejin Kong, Xuan Xu, Xiaolan Qi, Xiangdong Jiang, Deqin Yang
  • Publication number: 20190054450
    Abstract: A catalyst for producing light aromatics with heavy aromatics, a method for preparing the catalyst, and a use thereof are disclosed. The catalyst comprises a carrier, component (1), and component (2), wherein component (1) comprises one metal element or more metal elements selected from a group consisting of Pt, Pd, Ir, and Rh, and component (2) comprises one metal element or more metal elements selected from a group consisting of IA group, IIA group, IIIA group, IVA group, IB group, IIB group, IIIB group, IVB group, VB group, VIB group, VIIB group, La group, and VIII group other than Pt, Pd, Ir, and Rh. The catalyst can be used for producing light aromatics with heavy aromatics, whereby heavy aromatics hydrogenation selectivity and light aromatics yield can be improved.
    Type: Application
    Filed: August 20, 2018
    Publication date: February 21, 2019
    Inventors: Jingqiu LI, Dejin KONG, Huaying LI, Deqin YANG, Weiyi TONG, Jian DING, Min HOU, Yan CHEN, Xuemei CHEN, Liangkai WANG
  • Publication number: 20180282256
    Abstract: The present invention relates to a process for producing aromatics, a process for producing p-xylene and terephthalic acid, and a device for producing aromatics. The process for producing aromatics at least comprises a step of producing C8 olefin from a compound having a lactone group and a step of producing aromatics from the C8 olefin. The process for producing aromatics has the characters of high yield of aromatics and high selectivity to xylene.
    Type: Application
    Filed: June 17, 2016
    Publication date: October 4, 2018
    Inventors: Dejin KONG, Junlin ZHENG, Qi SONG, Xiaolan QI, Xuan XU, Xiangdong JIANG, Deqin YANG
  • Publication number: 20180282631
    Abstract: The present invention relates to a process for producing aromatics, p-xylene and terephthalic acid. The process for producing aromatics comprises a step of contacting an oxygen-containing raw material with an aromatization catalyst, under aromatization reaction conditions, to produce aromatics. The process for producing aromatics has an advantage of high yield of carbon as aromatics.
    Type: Application
    Filed: June 17, 2016
    Publication date: October 4, 2018
    Inventors: Qi SONG, Junlin ZHENG, Dejin KONG, Xuan XU, Xiaolan QI, Xiangdong JIANG, Deqin YANG
  • Patent number: 9843463
    Abstract: A transmit end determines M first time-frequency resource locations and S second time-frequency resource locations, and determines, in the S second time-frequency resource locations, S/2 second time-frequency resource locations as a first set, and S/2 second time-frequency resource locations excluding the second time-frequency resource locations in the first set as a second set; determines a communication data symbol sent at the second time-frequency resource locations in the first set; obtains, a compensation data symbol sent at the second time-frequency resource locations in the second set, where interference of the communication data symbol to the pilot data symbol cancels out interference of the compensation data symbol to the pilot data symbol; and separately sends the pilot data symbol at the M first time-frequency resource locations, and sends the communication data symbol and the compensation data symbol at the S second time-frequency resource locations.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 12, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tao Jiang, Dejin Kong, Wenjia Cui, Guangmei Ren
  • Publication number: 20170101353
    Abstract: The present invention relates to a process for preparing an aromatic hydrocarbon, and processes for producing p-xylene and terephthalic acid. The process for producing said aromatic hydrocarbon comprises a step of contacting an olefin with a diene in the presence of a catalyst to produce an aromatic hydrocarbon, which is characterized in that, at least a part of said olefin is substituted with dienophile. The reaction pressure can be reduced and the xylene selectivity can be increased with the improvement of the present invention.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 13, 2017
    Inventors: Dejin KONG, Sc Edman TSANG, Ivo TEIXERIA, Qi SONG
  • Publication number: 20170099164
    Abstract: A transmit end determines M first time-frequency resource locations and S second time-frequency resource locations, and determines, in the S second time-frequency resource locations, S/2 second time-frequency resource locations as a first set, and S/2 second time-frequency resource locations excluding the second time-frequency resource locations in the first set as a second set; determines a communication data symbol sent at the second time-frequency resource locations in the first set; obtains, a compensation data symbol sent at the second time-frequency resource locations in the second set, where interference of the communication data symbol to the pilot data symbol cancels out interference of the compensation data symbol to the pilot data symbol; and separately sends the pilot data symbol at the M first time-frequency resource locations, and sends the communication data symbol and the compensation data symbol at the S second time-frequency resource locations.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 6, 2017
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Tao JIANG, Dejin KONG, Wenjia CUI, Guangmei REN
  • Patent number: 8580702
    Abstract: The present invention discloses a catalyst for toluene shape selective disproportionation, comprising: a) 45 to 95 wt % of ZSM-5 molecular sieve having an average particle size of from 0.3 to 6 ?m and a molar ratio of SiO2 to Al2O3 of from 20 to 120; b) 0.01 to 30 wt % of at least one metal selected from the group consisting of Group IIB metals, Group IIIB metals, rare earth elements and Group VIII metals other than nickel, or oxide(s) thereof; c) 0 to 20 wt % of at least one metal selected from the group consisting of Group VA metals, Group VIB metals and alkaline earth metals, or oxide(s) thereof; d) 1 to 25 wt % of a silica inert surface coating derived from an organopolysiloxane; and e) 1 to 50 wt % of a binder. The present invention further discloses a process for shape selectively disproportionating toluene into p-xylene, comprising contacting a reaction stream containing toluene with the catalyst for toluene shape selective disproportionation under toluene disproportionation conditions.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: November 12, 2013
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Zaiku Xie, Dejin Kong, Zhirong Zhu, Wei Li, Qingling Chen, Rong Zhang
  • Patent number: 8293963
    Abstract: Provided is a process for crystallization separating p-xylene, comprising: a) feeding a mixed xylenes stream comprising greater than or equal to 60% by weight, of p-xylene, such as 60% to 98% by weight of p-xylene, to a crystallization unit to perform cooling crystallization, to obtain a slurry comprising p-xylene crystals; and b) feeding the slurry to a filtration and purification unit, to obtain a mother liquor, washings, and p-xylene, wherein the filtration and purification unit uses a simulated moving bed or a combination of multiple moving beds.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: October 23, 2012
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Luping Zhong, Jian Xiao, Yongyan Lu, Yanzi Guo, Dejin Kong
  • Patent number: 8084657
    Abstract: A process of making p-xylcne comprising processing a mixed feedstock containing benzene, toluene, C8 aromatic hydrocarbons, C9 and higher aromatic hydrocarbons, and non-aromatic hydrocarbons through a series of operations and various units, including a C9 and higher aromatic hydrocarbon dealkylation unit, a toluene selective disproportionate unit, an adsorption separation unit, an isomerization unit, and a crystallization separation unit.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: December 27, 2011
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Dejin Kong, Hongli Guo, Luping Zhong, Weisheng Yang, Jian Xiao
  • Publication number: 20100228066
    Abstract: The present invention provides an integrated process for the production of p-xylene, comprising the steps of A) separating a mixed feedstock containing benzene, toluene, C8 aromatic hydrocarbons, C9 and higher aromatic hydrocarbons, and non-aromatic hydrocarbons from a reforming unit, to obtain a first benzene stream, a first toluene stream, a first C8 aromatic hydrocarbon stream, a stream of C9 and higher aromatic hydrocarbons, and a stream of non-aromatic hydrocarbons; B) feeding the stream of C9 and higher aromatic hydrocarbons from step A) to a C9 and higher aromatic hydrocarbon dealkylation unit, where dealkylation reaction occurs in the presence of hydrogen, and separating the reaction effluent to obtain a second benzene stream, a second toluene stream, and a second C8 aromatic hydrocarbon stream; C) feeding both the first toluene stream and the second toluene stream to a toluene selective disproportionation unit, where toluene selective disproportionation reaction occurs in the presence of hydrogen to
    Type: Application
    Filed: November 20, 2009
    Publication date: September 9, 2010
    Applicants: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Dejin Kong, Hongli Guo, Luping Zhong, Weisheng Yang, Jian Xiao
  • Publication number: 20100137660
    Abstract: Provided is a process for crystallization separating p-xylene, comprising: a) feeding a mixed xylenes stream comprising greater than or equal to 60% by weight, of p-xylene, such as 60% to 98% by weight of p-xylene, to a crystallization unit to perform cooling crystallization, to obtain a slurry comprising p-xylene crystals; and b) feeding the slurry to a filtration and purification unit, to obtain a mother liquor, washings, and p-xylene, wherein the filtration and purification unit uses a simulated moving bed or a combination of multiple moving beds.
    Type: Application
    Filed: November 20, 2009
    Publication date: June 3, 2010
    Inventors: Luping Zhong, Jian Xiao, Yongyan Lu, Yanzi Guo, Dejin Kong
  • Publication number: 20100048382
    Abstract: The present invention discloses a catalyst for toluene shape selective disproportionation, comprising: a) 45 to 95 wt % of ZSM-5 molecular sieve having an average particle size of from 0.3 to 6 ?m and a molar ratio of SiO2 to Al2O3 of from 20 to 120; b) 0.01 to 30 wt % of at least one metal selected from the group consisting of Group IIB metals, Group IIIB metals, rare earth elements and Group VIII metals other than nickel, or oxide(s) thereof; c) 0 to 20 wt % of at least one metal selected from the group consisting of Group VA metals, Group VIB metals and alkaline earth metals, or oxide(s) thereof; d) 1 to 25 wt % of a silica inert surface coating derived from an organopolysiloxane; and e) 1 to 50 wt % of a binder. The present invention further discloses a process for shape selectively disproportionating toluene into p-xylene, comprising contacting a reaction stream containing toluene with the catalyst for toluene shape selective disproportionation under toluene disproportionation conditions.
    Type: Application
    Filed: November 2, 2007
    Publication date: February 25, 2010
    Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Zaiku Xie, Dejin Kong, Zhirong Zhu, Wei Li, Qingling Chen, Rong Zhang
  • Patent number: 7494951
    Abstract: The present invention relates to a process for the manufacture of catalysts used for producing para-xylene by toluene shape selective alkylation. The invention is primarily used for solving the problems in the old technology, e.g., high requirements on the environment and great treatment of waste water containing organic amines when synthesizing ZSM-5 molecular sieves by using an organic amine as the template agent; small and non-homogeneous particles of the molecular sieves when synthesizing ZSM-5 molecular sieves by using an alcohol or ether as the template agent, such that the catalyst prepared thereby has low catalytic selectivity and low toluene conversion rate, etc. Said problems are better solved in the present invention by synthesizing ZSM-5 molecular sieves using the combination of organic amines and alcohols or ethers as the template agents (having a weight ratio of organic amines/alcohols=0.05-150, and organic amines/ethers=0.05-150), and modifying with organosilicon so as to obtain the catalysts.
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: February 24, 2009
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Zhirong Zhu, Dejin Kong, Weimin Yang, Qingling Chen, Wei Zou, Wei Li, Min Hou, Deqin Yang
  • Publication number: 20070037693
    Abstract: The present invention relates to a process for the manufacture of catalysts used for producing para-xylene by toluene shape selective alkylation. The invention is primarily used for solving the problems in the old technology, e.g., high requirements on the environment and great treatment of waste water containing organic amines when synthesizing ZSM-5 molecular sieves by using an organic amine as the template agent; small and non-homogeneous particles of the molecular sieves when synthesizing ZSM-5 molecular sieves by using an alcohol or ether as the template agent, such that the catalyst prepared thereby has low catalytic selectivity and low toluene conversion rate, etc. Said problems are better solved in the present invention by synthesizing ZSM-5 molecular sieves using the combination of organic amines and alcohols or ethers as the template agents (having a weight ratio of organic amines/alcohols=0.05-150, and organic amines/ethers=0.05-150), and modifying with organosilicon so as to obtain the catalysts.
    Type: Application
    Filed: August 14, 2006
    Publication date: February 15, 2007
    Applicants: China Petroleum & Chemical Corporation, SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY SINOPEC
    Inventors: Zhirong Zhu, Dejin Kong, Weimin Yang, Qingling Chen, Wei Zou, Wei Li, Min Hou, Deqin Yang
  • Patent number: 7109389
    Abstract: A process for the disproportionation and transalkylation of toluene and the heavy aromatics comprises: subjecting a first stream of toluene, and a stream enriched in aromatics of nine carbon atoms to toluene disproportionation and transalkylation reactions in the presence of hydrogen in a first reaction zone to produce a first product mixture comprising benzene, aromatics of eight carbon atoms and heavy aromatics of ten and more carbon atoms; subjecting a second stream of toluene, and a stream enriched in heavy aromatics of ten and more carbon atoms to transalkylation reaction in the presence of hydrogen in a second reaction zone to produce a second product mixture comprising benzene, aromatics of eight carbon atoms and aromatics of nine carbon atoms; and isolating and recovering benzene and aromatics of eight carbon atoms from the first and second product mixtures.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: September 19, 2006
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Dejin Kong, Deqin Yang, Huaying Li, Hongli Guo, Tian Ruan
  • Patent number: 6867339
    Abstract: A complete new process for producing p-xylene is provided to solve the problems in the prior arts of the great amount of benzene as a by-product and the requirement of low content of C10+ heavy aromatics in the feedstock. The process comprises first subjecting benzene and C9+ aromatics to alkyl transfer reaction to produce toluene and C8 aromatics, then conducting toluene selective disproportionation, and molecular sieve adsorptive separation and isomerization of C8 aromatics, to obtain p-xylene.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: March 15, 2005
    Assignees: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Dejin Kong, Weisheng Yang, Hongli Guo, Huaying Li
  • Publication number: 20040186330
    Abstract: A complete new process for producing p-xylene is provided to solve the problems in the prior arts of the great amount of benzene as a by-product and the requirement of low content of C10+ heavy aromatics in the feedstock. The process comprises first subjecting benzene and C9+ aromatics to alkyl transfer reaction to produce toluene and C8 aromatics, then conducting toluene selective disproportionation, and molecular sieve adsorptive separation and isomerization of C8 aromatics, to obtain p-xylene.
    Type: Application
    Filed: March 19, 2003
    Publication date: September 23, 2004
    Applicant: China Petroleum & Chemical Corporation
    Inventors: Dejin Kong, Weisheng Yang, Hongli Guo, Huaying Li
  • Publication number: 20040186332
    Abstract: A process for the disproportionation and transalkylation of toluene and the heavy aromatics comprises subjecting a first stream of toluene, and a stream enriched in aromatics of nine carbon atoms to toluene disproportionation and transalkylation reactions in the presence of hydrogen in a first reaction zone to produce a first product mixture comprising benzene, aromatics of eight carbon atoms and heavy aromatics of ten and more carbon atoms; subjecting a second stream of toluene, and a stream enriched in heavy aromatics of ten and more carbon atoms to transalkylation reaction in the presence of hydrogen in a second reaction zone to produce a second product mixture comprising benzene, aromatics of eight carbon atoms and aromatics of nine carbon atoms; and isolating and recovering benzene and aromatics of eight carbon atoms from the first and second product mixtures.
    Type: Application
    Filed: March 19, 2003
    Publication date: September 23, 2004
    Applicants: China Petroleum & Chemical Corporation, Shanghai Research Institute of Petrochemical Technology Sinopec
    Inventors: Dejin Kong, Deqin Yang, Huaying Li, Hongli Guo, Tian Ruan