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公开(公告)号：US20220008840A1
公开(公告)日：2022-01-13
申请号：US17293862
申请日：2019-07-05
发明人： Zhen Qian , Jingwei Wu , Juncheng Li , Jingquan Zhang , Qinge Jian , Xiaolong Zhang , Yuan Gao , Xueting Wu , Haoting Chen
IPC分类号： B01D15/18
摘要： 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.
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公开(公告)号：US20210380505A1
公开(公告)日：2021-12-09
申请号：US17288395
申请日：2019-06-14
发明人： Juncheng Li , Zhen Qian , Jingwei Wu , Xiaolong Zhang , Qinge Jian , Yuan Gao , Xueting Wu , Haoting Chen
摘要： The present disclosure provides a method of separating α-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 α-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.
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公开(公告)号：US11980833B2
公开(公告)日：2024-05-14
申请号：US17293862
申请日：2019-07-05
发明人： Zhen Qian , Jingwei Wu , Juncheng Li , Jingquan Zhang , Qinge Jian , Xiaolong Zhang , Yuan Gao , Xueting Wu , Haoting Chen
IPC分类号： B01D15/18
CPC分类号： B01D15/1842 , B01D15/1828 , B01D2215/023
摘要： 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.
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公开(公告)号：US20210170378A1
公开(公告)日：2021-06-10
申请号：US17048944
申请日：2019-06-11
发明人： Zhen Qian , Jingwei Wu , Juncheng Li , Xiaolong Zhang , Hongcheng Cao , Yuan Gao , Xueting Wu
摘要： 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.
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5.发明公开公开(公告)号：US20240166958A1
公开(公告)日：2024-05-23
申请号：US18551480
申请日：2022-05-19
发明人： Hongyu Liu , Zhen Qian , Zhifei Li , Xiaolong Zhang , Juncheng Li , Qiang Xue , Xu Wang , Hui Zhang , Huai Guan , Yanyang Deng , Xiang Liu , Jiale Zuo
CPC分类号： C10G53/12 , B01D11/0419 , B01D11/0446 , B01D11/0449 , B01D11/0492 , C10G2300/1022 , C10G2300/202
摘要： 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.
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公开(公告)号：US11370732B2
公开(公告)日：2022-06-28
申请号：US17288395
申请日：2019-06-14
发明人： Juncheng Li , Zhen Qian , Jingwei Wu , Xiaolong Zhang , Qinge Jian , Yuan Gao , Xueting Wu , Haoting Chen
摘要： The present disclosure provides a method of separating α-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 α-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.
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公开(公告)号：US20210054296A1
公开(公告)日：2021-02-25
申请号：US17044196
申请日：2019-06-11
发明人： Zhen Qian , Jingwei Wu , Xiaolong Zhang , Jingquan Zhang , Juncheng Li , Qinge Jian
摘要： 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.
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公开(公告)号：US11306262B2
公开(公告)日：2022-04-19
申请号：US17044196
申请日：2019-06-11
发明人： Zhen Qian , Jingwei Wu , Xiaolong Zhang , Jingquan Zhang , Juncheng Li , Qinge Jian
摘要： 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.
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公开(公告)号：US20210024802A1
公开(公告)日：2021-01-28
申请号：US17042790
申请日：2019-06-10
发明人： Juncheng LI , Heng MIAO , Zhen QIAN , Huiyue ZHENG , Guoqing MA , Yan ZHOU , Qinge JIAN , Lianglan GUO
摘要： 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. The process products have relatively high flexibility, can be customized on demand, and have low production cost, and the industrial production of the products can be realized.
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公开(公告)号：US11524282B2
公开(公告)日：2022-12-13
申请号：US17048944
申请日：2019-06-11
发明人： Zhen Qian , Jingwei Wu , Juncheng Li , Xiaolong Zhang , Hongcheng Cao , Yuan Gao , Xueting Wu
摘要： 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.
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