Patents by Inventor Juncheng LI

Juncheng LI 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: 20250084015
    Abstract: The present disclosure provides a method for preparing a coal-based linear alkylbenzene, wherein the coal-based linear alkylbenzene is prepared by an alkylation reaction using a coal-based Fischer-Tropsch synthetic oil and a benzene as reaction raw materials and using a molecular sieve loaded with a strong acid cation exchange resin as a catalyst; the strong acid cation exchange resin has an acid strength?0.9 mmol/g [H+]; and the coal-based Fischer-Tropsch synthetic oil comprises a linear olefin with a carbon number range of C9-C13. In the present disclosure, the strong acid cation exchange resin is loaded into pores and onto a surface of the molecular sieve, which has better effect on the selectivity to the alkylbenzene product. The product has a high straight chain ratio, has a high selectivity for 2-position substitution, and may maintain a relatively high olefin conversion rate, thereby significantly increasing the lifetime of the catalyst.
    Type: Application
    Filed: November 25, 2022
    Publication date: March 13, 2025
    Inventors: Jingwei Wu, Yue Zhang, Zhen Qian, Zhifei Li, Xiaolong Zhang, Xinping Zhang, Xiangqiang Shi, Zhengxu Ao, Xuanheng Guo, Juncheng Li, Haiguo Wang, Changyu Ren
  • Publication number: 20240166958
    Abstract: The present disclosure relates to the technical field of chemical engineering, and specifically discloses a method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number. A reaction-extraction combined process is used in this method for removing oxygenated compounds from a Fischer-Tropsch oil having a high carbon number, wherein the Fischer-Tropsch oil (C5-C20) is firstly subjected to alkaline washing with an alkaline aqueous solution to convert acidic substances into water-soluble salts. The Fischer-Tropsch oil is subjected to a primary extraction with a carbonate-based extractant to remove alcohols and esters therein, and subsequently subjected to a secondary extraction with propylene carbonate to remove ketones and aldehydes impurities therein, thereby removing oxygenated compounds in the Fischer-Tropsch oil. After extraction, the content of the oxygenated compounds in the Fischer-Tropsch oil may be down to 1-60 ppm, and the yield of oil product may be kept 90% or more.
    Type: Application
    Filed: May 19, 2022
    Publication date: May 23, 2024
    Inventors: Hongyu Liu, Zhen Qian, Zhifei Li, Xiaolong Zhang, Juncheng Li, Qiang Xue, Xu Wang, Hui Zhang, Huai Guan, Yanyang Deng, Xiang Liu, Jiale Zuo
  • Patent number: 11980833
    Abstract: An efficient simulated moving bed device and an efficient simulated moving bed process are provided. The efficient simulated moving bed device comprises an adsorption bed, a raw material feeding system, a desorbent feeding system, a circulating system, an extract system, a raffinate system, a program-controlled valve group, and an automatic control system.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: May 14, 2024
    Assignee: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Zhen Qian, Jingwei Wu, Juncheng Li, Jingquan Zhang, Qinge Jian, Xiaolong Zhang, Yuan Gao, Xueting Wu, Haoting Chen
  • Publication number: 20240108234
    Abstract: The present disclosure improves the accuracy of blood flow assessment. According to one embodiment of the present invention, a blood flow assessment device has: a measurement part configured to measure skin temperatures at a plurality of locations on a face of a user; a calculation part configured to calculate a variation of the skin temperatures at the plurality of locations; and a blood flow assessment part configured to assess a blood flow of the user based on the variation.
    Type: Application
    Filed: December 24, 2021
    Publication date: April 4, 2024
    Inventors: Daisuke KAMIWANO, Motoki TAKATA, Megumi SEKINO, Yohei KOBAYASHI, Juncheng LI, Naomi KANNO
  • Publication number: 20230076370
    Abstract: The present invention provides a foldable cat scratching board, which comprises a base assembly, a first inclined plate assembly installed on the base assembly, and a second inclined plate assembly installed on the first inclined plate assembly; wherein a locking assembly is arranged between the first inclined plate assembly and the second inclined plate assembly, the first inclined plate assembly and the second inclined plate assembly are pivotally hinged by the locking assembly; the first inclined plate assembly is detachably connected with the base assembly. The present invention has the advantages that by adopting the described solution, only the base of the assembled cat scratching board contacts the ground, so that the occupied area is small; moreover, the vertical space can be well utilized, which can satisfy the cats' habit of climbing.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 9, 2023
    Inventor: Juncheng Li
  • Patent number: 11524282
    Abstract: A regeneration method for a benzene alkylation solid acid catalyst, comprising: purging the solid acid catalyst in a reactor with a gas; continuously injecting n-hexane at a feed port of the reactor and heating the n-hexane to wash the solid acid catalyst, and discharging the n-hexane entraining benzene alkylation reaction residues from a discharge port of the reactor; and stopping injecting n-hexane, cleaning off a liquid in the reactor by purging with the gas, and cooling the reactor. In the regeneration method of the present disclosure, the regeneration liquid used is n-hexane, which can increase the solubility of the residues in channels and enhance the regeneration effect. Meanwhile, permanent damage to the channel structure of the catalyst caused by carbon burning regeneration can be avoided, thereby prolonging the lifetime of the catalyst.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: December 13, 2022
    Assignee: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Zhen Qian, Jingwei Wu, Juncheng Li, Xiaolong Zhang, Hongcheng Cao, Yuan Gao, Xueting Wu
  • Patent number: 11370732
    Abstract: The present disclosure provides a method of separating ?-olefin by a simulated moving bed. The method comprises using a coal-based Fischer-Tropsch synthetic oil as a raw material to obtain a target olefin having a carbon number N within a range from 9 to 18, wherein the raw material is subjected to treatment steps including pretreatment, fraction cutting, alkane-alkene separation, and isomer separation, thereby obtaining a high purity ?-olefin product. As compared to conventional rectification and extraction processes, the product obtained by the method of the present disclosure has advantages of higher purity, higher yield, lower energy consumption, and significantly reduced production cost.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: June 28, 2022
    Assignee: INNER MONGOLIA YITAI COAL-BASED NEW MATERIALS RESEARCH INSTITUTE CO., LTD.
    Inventors: Juncheng Li, Zhen Qian, Jingwei Wu, Xiaolong Zhang, Qinge Jian, Yuan Gao, Xueting Wu, Haoting Chen
  • Patent number: 11306262
    Abstract: Disclosed are a pretreatment method and system for a fraction oil for the production of alkylbenzene, the method comprising: adding a fraction oil, a weak base solution and an inorganic salt solution into a reactor, and leaving same to stand and layering same after the reaction is complete; adding water and an inorganic salt solution into an oil phase for washing with water; extracting same with a polar solvent having a high boiling point, and then adsorbing same with an adsorbent to separate oxygen-containing compounds in the neutral fraction oil; sending the extraction agent containing the oxygen-containing compounds to an extraction agent recovery unit; and then sending the neutral fraction oil to an alkylation reactor for a reaction.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: April 19, 2022
    Assignee: INNER MONGOLIA YITAI COAL-BASED NEW MATERIALS RESEARCH INSTITUTE CO., LTD.
    Inventors: Zhen Qian, Jingwei Wu, Xiaolong Zhang, Jingquan Zhang, Juncheng Li, Qinge Jian
  • Publication number: 20220008840
    Abstract: An efficient simulated moving bed device and an efficient simulated moving bed process are provided. The efficient simulated moving bed device comprises an adsorption bed, a raw material feeding system, a desorbent feeding system, a circulating system, an extract system, a raffinate system, a program-controlled valve group, and an automatic control system.
    Type: Application
    Filed: July 5, 2019
    Publication date: January 13, 2022
    Applicant: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Zhen Qian, Jingwei Wu, Juncheng Li, Jingquan Zhang, Qinge Jian, Xiaolong Zhang, Yuan Gao, Xueting Wu, Haoting Chen
  • Publication number: 20210380505
    Abstract: The present disclosure provides a method of separating ?-olefin by a simulated moving bed. The method comprises using a coal-based Fischer-Tropsch synthetic oil as a raw material to obtain a target olefin having a carbon number N within a range from 9 to 18, wherein the raw material is subjected to treatment steps including pretreatment, fraction cutting, alkane-alkene separation, and isomer separation, thereby obtaining a high purity ?-olefin product. As compared to conventional rectification and extraction processes, the product obtained by the method of the present disclosure has advantages of higher purity, higher yield, lower energy consumption, and significantly reduced production cost.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 9, 2021
    Applicant: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Juncheng Li, Zhen Qian, Jingwei Wu, Xiaolong Zhang, Qinge Jian, Yuan Gao, Xueting Wu, Haoting Chen
  • Publication number: 20210170378
    Abstract: A regeneration method for a benzene alkylation solid acid catalyst, comprising: purging the solid acid catalyst in a reactor with a gas; continuously injecting n-hexane at a feed port of the reactor and heating the n-hexane to wash the solid acid catalyst, and discharging the n-hexane entraining benzene alkylation reaction residues from a discharge port of the reactor; and stopping injecting n-hexane, cleaning off a liquid in the reactor by purging with the gas, and cooling the reactor. In the regeneration method of the present disclosure, the regeneration liquid used is n-hexane, which can increase the solubility of the residues in channels and enhance the regeneration effect. Meanwhile, permanent damage to the channel structure of the catalyst caused by carbon burning regeneration can be avoided, thereby prolonging the lifetime of the catalyst.
    Type: Application
    Filed: June 11, 2019
    Publication date: June 10, 2021
    Applicant: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Zhen Qian, Jingwei Wu, Juncheng Li, Xiaolong Zhang, Hongcheng Cao, Yuan Gao, Xueting Wu
  • Publication number: 20210054296
    Abstract: Disclosed are a pretreatment method and system for a fraction oil for the production of alkylbenzene, the method comprising: adding a fraction oil, a weak base solution and an inorganic salt solution into a reactor, and leaving same to stand and layering same after the reaction is complete; adding water and an inorganic salt solution into an oil phase for washing with water; extracting same with a polar solvent having a high boiling point, and then adsorbing same with an adsorbent to separate oxygen-containing compounds in the neutral fraction oil; sending the extraction agent containing the oxygen-containing compounds to an extraction agent recovery unit; and then sending the neutral fraction oil to an alkylation reactor for a reaction.
    Type: Application
    Filed: June 11, 2019
    Publication date: February 25, 2021
    Applicant: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.
    Inventors: Zhen Qian, Jingwei Wu, Xiaolong Zhang, Jingquan Zhang, Juncheng Li, Qinge Jian
  • Publication number: 20210024802
    Abstract: Disclosed is a method for producing series of phase change wax products, comprising: refining a Fischer-Tropsch synthesis wax raw material via a hydrogenation reaction to obtain a refined Fischer-Tropsch wax; and subjecting the refined Fischer-Tropsch wax to reduced pressure distillation to separate continuous fractions with a distillation range of 5° C.-30° C. by continuously increasing the operation temperature so as to obtain series of phase change wax products, wherein the pressure for the reduced pressure distillation is 0-1000 pa, the operation temperature at the top of the column is 120° C.-260° C., and the phase change enthalpy value of the series of phase change wax products is ?170 J/g. According to the method, phase change wax products of various grades with melting points from 5° C. to 80° C. can be separated and produced from the refined Fischer-Tropsch wax. The products have concentrated carbon numbers and relatively high enthalpy values.
    Type: Application
    Filed: June 10, 2019
    Publication date: January 28, 2021
    Inventors: Juncheng LI, Heng MIAO, Zhen QIAN, Huiyue ZHENG, Guoqing MA, Yan ZHOU, Qinge JIAN, Lianglan GUO
  • Patent number: D998086
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: September 5, 2023
    Inventor: Juncheng Li
  • Patent number: D1006350
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: November 28, 2023
    Inventor: Juncheng Li
  • Patent number: D1068181
    Type: Grant
    Filed: November 6, 2024
    Date of Patent: March 25, 2025
    Inventor: Juncheng Li