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).
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Publication number: 20250084015Abstract: 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: ApplicationFiled: November 25, 2022Publication date: March 13, 2025Inventors: Jingwei Wu, Yue Zhang, Zhen Qian, Zhifei Li, Xiaolong Zhang, Xinping Zhang, Xiangqiang Shi, Zhengxu Ao, Xuanheng Guo, Juncheng Li, Haiguo Wang, Changyu Ren
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Publication number: 20240166958Abstract: 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: ApplicationFiled: May 19, 2022Publication date: May 23, 2024Inventors: Hongyu Liu, Zhen Qian, Zhifei Li, Xiaolong Zhang, Juncheng Li, Qiang Xue, Xu Wang, Hui Zhang, Huai Guan, Yanyang Deng, Xiang Liu, Jiale Zuo
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Patent number: 11980833Abstract: 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: GrantFiled: July 5, 2019Date of Patent: May 14, 2024Assignee: 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
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Publication number: 20240108234Abstract: 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: ApplicationFiled: December 24, 2021Publication date: April 4, 2024Inventors: Daisuke KAMIWANO, Motoki TAKATA, Megumi SEKINO, Yohei KOBAYASHI, Juncheng LI, Naomi KANNO
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Publication number: 20230076370Abstract: 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: ApplicationFiled: September 12, 2022Publication date: March 9, 2023Inventor: Juncheng Li
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Patent number: 11524282Abstract: 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: GrantFiled: June 11, 2019Date of Patent: December 13, 2022Assignee: 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
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Patent number: 11370732Abstract: 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: GrantFiled: June 14, 2019Date of Patent: June 28, 2022Assignee: 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
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Patent number: 11306262Abstract: 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: GrantFiled: June 11, 2019Date of Patent: April 19, 2022Assignee: INNER MONGOLIA YITAI COAL-BASED NEW MATERIALS RESEARCH INSTITUTE CO., LTD.Inventors: Zhen Qian, Jingwei Wu, Xiaolong Zhang, Jingquan Zhang, Juncheng Li, Qinge Jian
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Publication number: 20220008840Abstract: 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: ApplicationFiled: July 5, 2019Publication date: January 13, 2022Applicant: 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
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Publication number: 20210380505Abstract: 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: ApplicationFiled: June 14, 2019Publication date: December 9, 2021Applicant: 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
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Publication number: 20210170378Abstract: 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: ApplicationFiled: June 11, 2019Publication date: June 10, 2021Applicant: 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
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Publication number: 20210054296Abstract: 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: ApplicationFiled: June 11, 2019Publication date: February 25, 2021Applicant: Inner Mongolia Yitai Coal-based New Materials Research Institute Co., Ltd.Inventors: Zhen Qian, Jingwei Wu, Xiaolong Zhang, Jingquan Zhang, Juncheng Li, Qinge Jian
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Publication number: 20210024802Abstract: 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: ApplicationFiled: June 10, 2019Publication date: January 28, 2021Inventors: Juncheng LI, Heng MIAO, Zhen QIAN, Huiyue ZHENG, Guoqing MA, Yan ZHOU, Qinge JIAN, Lianglan GUO
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Patent number: D998086Type: GrantFiled: May 25, 2023Date of Patent: September 5, 2023Inventor: Juncheng Li
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Patent number: D1006350Type: GrantFiled: September 12, 2022Date of Patent: November 28, 2023Inventor: Juncheng Li
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Patent number: D1068181Type: GrantFiled: November 6, 2024Date of Patent: March 25, 2025Inventor: Juncheng Li