Patents by Inventor Zhongmin Liu
Zhongmin Liu 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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Patent number: 11975315Abstract: Disclosed is a method for partially regenerating a catalyst for methanol and/or dimethyl ether-to-olefin. The method comprises: introducing a mixed gas into a regenerated region containing a catalyst to be regenerated, and subjecting same to a partial regeneration reaction to obtain a regenerated catalyst, wherein the mixed gas contains water vapor and air; and in the regenerated catalyst, the coke content of at least part of the regenerated catalyst is greater than 1%. The method utilizes the coupling of a mixed gas of water vapor and air to activate a deactivated catalyst, selectively eliminate part of a coke deposit in the catalyst to be regenerated, and obtain a partially regenerated catalyst for methanol-to-olefin. Another aspect of the present invention is that further provided is a method for methanol and/or dimethyl ether-to-olefin by using the partially regenerated catalyst for methanol-to-olefin regenerated by means of the method.Type: GrantFiled: May 10, 2019Date of Patent: May 7, 2024Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Jinling Zhang, Mao Ye, Zhongmin Liu, Jibin Zhou, Tao Zhang, Xiangao Wang, Hailong Tang, Jing Wang
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Publication number: 20240116844Abstract: A method for preparing glycolic acid through hydrolysis of alkoxyacetate is provided. The method includes: subjecting raw materials including the alkoxyacetate and water to a reaction in the presence of an acidic molecular sieve catalyst to produce the glycolic acid, where the alkoxyacetate is at least one selected from the group consisting of compounds with a structural formula shown in formula I; and in formula I, R1 and R2 each are independently any one selected from the group consisting of C1-C5 alkyl groups. The glycolic acid production method in the present application can be implemented by a traditional fixed-bed reactor under an atmospheric pressure, which is very suitable for continuous production.Type: ApplicationFiled: February 3, 2021Publication date: April 11, 2024Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Youming NI, Wenliang ZHU, Zhongmin LIU
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Publication number: 20240109833Abstract: A method for preparing glycolic acid and methyl glycolate through hydrolysis of methyl methoxyacetate and methoxyacetic acid is provided. The method includes allowing raw materials including methyl methoxyacetate, methoxyacetic acid, and water to contact and react with a catalyst to produce glycolic acid and methyl glycolate, where the catalyst is at least one selected from the group consisting of a solid acid catalyst, a liquid acid catalyst, a solid base catalyst, and a liquid base catalyst. The method for preparing glycolic acid and methyl glycolate in the present application can be implemented by a traditional fixed-bed reactor, tank reactor, or catalytic distillation reactor under an atmospheric pressure, which is very suitable for continuous production.Type: ApplicationFiled: February 3, 2021Publication date: April 4, 2024Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Youming NI, Wenliang ZHU, Zhongmin LIU
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Publication number: 20240024658Abstract: The present disclosure relates to a micro magnetic-hydraulic suspension centrifugal blood pump, which is a pump and motor integrated device. The blood pump includes a pump housing, a rotor, an impeller, a servo motor, an inner magnetic core group, an outer magnetic ring group, a limiting device, and a suture snap ring device; the rotor and the impeller are seamlessly connected into a whole; the rotor is arranged in an inner pipe of the blood pump; the servo motor drives the rotor to drive the impeller to do work; the inner magnetic core group is arranged at a lower end inside the rotor; the outer magnetic ring group and a wrapping sleeve are upright in a pump cavity lower shell; an inner and outer magnetic combination can achieve a radial magnetic suspension effect of the impeller; a ceramic sheet and a ceramic cone form a temporary limiting bearing; a top end of a vane of the impeller is provided with an inclined surface; and the pump can generate hydraulic suspension during working.Type: ApplicationFiled: March 1, 2021Publication date: January 25, 2024Inventors: Zhongmin LIU, Feng WAN, Yuanyi PENG, Guorong LI
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Patent number: 11872549Abstract: A fluidized bed reactor includes a main shell and a coke control zone shell; the main shell includes an upper shell and a lower shell; the upper shell encloses a gas-solid separation zone, and the lower shell encloses a reaction zone; the reaction zone axially communicates with the gas-solid separation zone; the coke control zone shell is circumferentially arranged on an outer wall of the main shell; the coke control zone shell and the main shell enclose an annular cavity, and the annular cavity is a coke control zone; n baffles are radially arranged in the coke control zone, and the n baffles divide the coke control zone into n coke control zone subzones, where n is an integer; the coke control zone subzones are provided with a coke control raw material inlet; and a catalyst circulation hole is formed in each of n?1 of the baffles.Type: GrantFiled: October 16, 2020Date of Patent: January 16, 2024Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Mao Ye, Tao Zhang, Jinling Zhang, Shuliang Xu, Hailong Tang, Xiangao Wang, Cheng Zhang, Jinming Jia, Jing Wang, Hua Li, Chenggong Li, Zhongmin Liu
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Patent number: 11833502Abstract: A coke control reactor, and a device and method for preparing low-carbon olefins from an oxygen-containing compound are provided. The coke control reactor includes a coke control reactor shell, a reaction zone I, and a coke controlled catalyst settling zone; a cross-sectional area at any position of the reaction zone I is less than that of the coke controlled catalyst settling zone; n baffles are arranged in a vertical direction in the reaction zone I; the n baffles divide the reaction zone I into m reaction zone I subzones; and a catalyst circulation hole is formed in each of the baffles, such that a catalyst flows in the reaction zone I in a preset manner. A catalyst charge in the present coke control reactor can be automatically adjusted, and an average residence time of a catalyst in the coke control reactor can be controlled by changing process operating conditions.Type: GrantFiled: October 16, 2020Date of Patent: December 5, 2023Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Tao Zhang, Mao Ye, Jinling Zhang, Shuliang Xu, Hailong Tang, Xiangao Wang, Cheng Zhang, Jinming Jia, Jing Wang, Hua Li, Chenggong Li, Zhongmin Liu
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Publication number: 20230338935Abstract: A metal-organic framework (MOF) MIL-125 and a preparation method and a use thereof are provided. The MOF MIL-125 is a round cake-like crystal and has an external specific surface area (SSA) of 160 m2/g to 220 m2/g. The MOF MIL-125 provided in the present application has a large number of microporous structures, a large external SSA, and a high catalytic activity in oxidation.Type: ApplicationFiled: September 11, 2020Publication date: October 26, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Jiacheng XING, Liping YANG, Danhua YUAN, Yunpeng XU, Zhongmin LIU
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Publication number: 20230338923Abstract: An adsorbent and a use thereof are provided. The adsorbent is a metal-organic framework (MOF) MIL-125; the MOF MIL-125 has an external specific surface area (SSA) of 160 m2/g to 220 m2/g; and the MOF MIL-125 includes a micropore with an area of 1,000 m2/g to 1,500 m2/g. The external SSA of the MOF MIL-125 is much higher than an external SSA of the traditional MIL-125, which has promising application prospects in the adsorptive separation of xylene isomers and exhibits high selectivity for p-xylene.Type: ApplicationFiled: September 11, 2020Publication date: October 26, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Liping YANG, Jiacheng XING, Danhua YUAN, Yunpeng XU, Zhongmin LIU
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Publication number: 20230331578Abstract: A preparation method of a porous oxide is provided, which includes: preparing the porous oxide with a polyester polyol as a raw material. The porous oxide prepared by the preparation method in the present application has characteristics such as uniform and adjustable pore sizes and controllable distribution of mesopores, micropores, and macropores.Type: ApplicationFiled: September 17, 2020Publication date: October 19, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Jiacheng XING, Danhua YUAN, Yunpeng XU, Zhongmin LIU
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Patent number: 11712675Abstract: The present application discloses a molecular sieve-based catalyst modification apparatus. The apparatus comprises a feed unit 1, a modification unit 2 and a cooling unit 3 connected in sequence; the feed unit comprises a catalyst feed unit 11 and a modifier feed unit 12, a catalyst and a modifier are introduced into the modification unit 2 respectively by the catalyst feed unit and the modifier feed unit and are discharged from the modification unit after sufficient reaction in modification unit, and then enter the cooling unit 3 for cooling. The present application further discloses a use method for the molecular sieve-based catalyst modification apparatus. The use method comprises: introducing a catalyst and a modifier into the modification unit 2 respectively through the feed unit 1; wherein the catalyst is modified by the modifier in the modification unit 2, and then discharged to the cooling unit 3 to cool until the temperature is lower than 50° C.Type: GrantFiled: November 30, 2017Date of Patent: August 1, 2023Assignee: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Tao Zhang, Mao Ye, Zhongmin Liu, Jinling Zhang, Hailong Tang, Jinming Jia, Xiangao Wang, Cheng Zhang, Hua Li, Yinfeng Zhao, Chenggong Li
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Patent number: 11685866Abstract: Disclosed is a method for producing low carbon olefins and/or aromatics from feedstock comprising naphtha. The method can include the following steps: a) feeding feedstock comprising naphtha into a fast fluidized bed reactor; b) contacting the feedstock with a catalyst under conditions to produce a gas product and spent catalyst; c) separating the gas product to produce a stream comprising primarily one or more low carbon olefins and/or one or more aromatics; d) transporting the spent catalyst to a regenerator; e) regenerating the spent catalyst in the regenerator to form regenerated catalyst; and f) returning the regenerated catalyst to the fast fluidized bed reactor.Type: GrantFiled: January 28, 2019Date of Patent: June 27, 2023Assignees: SABIC GLOBAL TECHNOLOGIES B.V., DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Yinfeng Zhao, Mao Ye, Zhongmin Liu, Hailong Tang, Jing Wang, Jinling Zhang, Tao Zhang, Talal Khaled Al-Shammari
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Publication number: 20230125888Abstract: A regeneration device, a device for preparing low-carbon olefins, and a use thereof are provided. The regeneration device includes a first regenerator and a second regenerator; a first activation zone of the first regenerator is connected to the second regenerator through a pipeline, such that a catalyst in the first activation zone is able to be delivered to the second regenerator; and the second regenerator is connected to a gas-solid separation zone of the first regenerator through a pipeline, such that a catalyst in the second regenerator is able to be delivered to the gas-solid separation zone. The regeneration device can adjust the coke content, coke content distribution, and coke species in a dimethyl ether/methanol to olefins (DMTO) catalyst to control an operation window of the DMTO catalyst, which improves the selectivity for low-carbon olefins and the atomic economy of a methanol-to-olefins (MTO) technology.Type: ApplicationFiled: October 16, 2020Publication date: April 27, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Tao ZHANG, Mao YE, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
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Publication number: 20230085715Abstract: A coke control reactor, a device for preparing low-carbon olefins from an oxygen-containing compound, and a use thereof are provided. The coke control reactor includes a riser reactor and a bed reactor; the bed reactor includes a bed reactor shell, and the bed reactor shell encloses a reaction zone I, a transition zone, and a gas-solid separation zone I from bottom to top; a bed reactor distributor is arranged in the reaction zone I; a coke controlled catalyst delivery pipe is arranged outside the reaction zone I; an upper section of the riser reactor penetrates through a bottom of the bed reactor and is axially inserted in the bed reactor; and an outlet end of the riser reactor is located in the transition zone. The coke control reactor can control the conversion and generation of coke species in a catalyst.Type: ApplicationFiled: October 16, 2020Publication date: March 23, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Tao ZHANG, Mao YE, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
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Publication number: 20230002682Abstract: A fluidized bed reactor, a device, and a method for producing low-carbon olefins from oxygen-containing compound are provided. The fluidized bed reactor includes a reactor shell, a reaction zone, a coke control zone and a delivery pipe, where there are n baffles arranged in the coke control zone, and the n baffles divide the coke control zone into n sub-coke control zones which include a first sub-coke control zone, a second sub-coke control zone, and an nth sub-coke control zone; at least one catalyst circulation hole is provided on each of the n-1 baffles, so that the catalyst flows in an annular shape in the coke control zone, where n is an integer. The device and method can be adapted to a new generation of DMTO catalyst, and the unit consumption of production ranges from 2.50 to 2.58 tons of methanol/ton of low-carbon olefins.Type: ApplicationFiled: October 16, 2020Publication date: January 5, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Mao YE, Tao ZHANG, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
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Publication number: 20230001393Abstract: A catalyst for pyrolysis of 1,2-dichloroethane (1,2-DCE) to prepare vinyl chloride monomer (VCM), a preparation method, a use, and a regeneration method thereof are provided. The catalyst for pyrolysis of 1,2-DCE to prepare VCM includes a silicon-aluminum molecular sieve. The catalyst for pyrolysis of 1,2-DCE to prepare VCM has high reaction activity and excellent selectivity and solves the problem that the pyrolysis of 1,2-DCE to prepare VCM in the prior art involves high reaction temperature and large energy consumption and is prone to coking and carbon deposition.Type: ApplicationFiled: December 12, 2019Publication date: January 5, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Guangye LIU, Danhua YUAN, Yunpeng XU, Zhongmin LIU, Yanan LIU, Changmin BAI, Wei HUANG, Zhaoan CHEN, Shiying LI
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Publication number: 20230001370Abstract: A coke control reactor, and a device and method for preparing low-carbon olefins from an oxygen-containing compound are provided. The coke control reactor includes a coke control reactor shell, a reaction zone I, and a coke controlled catalyst settling zone; a cross-sectional area at any position of the reaction zone I is less than that of the coke controlled catalyst settling zone; n baffles are arranged in a vertical direction in the reaction zone I; the n baffles divide the reaction zone I into m reaction zone I subzones; and a catalyst circulation hole is formed in each of the baffles, such that a catalyst flows in the reaction zone I in a preset manner. A catalyst charge in the present coke control reactor can be automatically adjusted, and an average residence time of a catalyst in the coke control reactor can be controlled by changing process operating conditions.Type: ApplicationFiled: October 16, 2020Publication date: January 5, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Tao ZHANG, Mao YE, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
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Publication number: 20230001371Abstract: A fluidized bed reactor includes a main shell and a coke control zone shell; the main shell includes an upper shell and a lower shell; the upper shell encloses a gas-solid separation zone, and the lower shell encloses a reaction zone; the reaction zone axially communicates with the gas-solid separation zone; the coke control zone shell is circumferentially arranged on an outer wall of the main shell; the coke control zone shell and the main shell enclose an annular cavity, and the annular cavity is a coke control zone; n baffles are radially arranged in the coke control zone, and the n baffles divide the coke control zone into n coke control zone subzones, where n is an integer; the coke control zone subzones are provided with a coke control raw material inlet; and a catalyst circulation hole is formed in each of n-1 of the baffles.Type: ApplicationFiled: October 16, 2020Publication date: January 5, 2023Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Mao YE, Tao ZHANG, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
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Publication number: 20220401905Abstract: A fluidized bed regenerator, a device for preparing low-carbon olefins, and a use thereof are provided. The fluidized bed regenerator includes a second activation zone, a first activation zone, and a gas-solid separation zone from bottom to top; the second activation zone axially communicates with the gas-solid separation zone; the first activation zone is arranged on a periphery of a junction between the second activation zone and the gas-solid separation zone; the first activation zone is an annular cavity; n baffles are radially arranged in the first activation zone, and the n baffles divide the first activation zone into n first activation zone subzones; and a catalyst circulation hole is formed in each of n?1 of the baffles such that a catalyst entering the first activation zone flows in an annular direction.Type: ApplicationFiled: October 16, 2020Publication date: December 22, 2022Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Mao YE, Tao ZHANG, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
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Patent number: 11504703Abstract: The present application discloses a method for partially regenerating a methanol to olefin catalyst, comprising: placing a deactivated methanol to olefin catalyst in a regenerator to carry out a partial regeneration reaction to obtain a regenerated catalyst; at least a portion of the regenerated catalyst has a coke amount of more than 1%. The present application discloses a methanol to olefin process, the methanol to olefin reaction is carried out in a fluidized bed with the use of a methanol to olefin catalyst, wherein at least a portion of the regenerated catalyst has a coke amount of more than 1%.Type: GrantFiled: December 5, 2017Date of Patent: November 22, 2022Assignee: Dalian Institute of Chemical Physics, Chinese Academy of SciencesInventors: Mao Ye, Jibin Zhou, Tao Zhang, Jinling Zhang, Yinfeng Zhao, Xiangao Wang, Jinming Jia, Hailong Tang, Zhongmin Liu
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Publication number: 20220306481Abstract: Disclosed in the present application is a high-silica Y molecular sieve having FAU topology. The anhydrous chemical constitution of the molecular sieve is as shown in formula I: kM.mR1.nR2.(SixAly)O2 Formula I; wherein, M is at least one of alkali metal elements; R1 and R2 represent organic templating agent agents; k represents the numbers of moles of the alkali metal element corresponding to per mole of (SixAly)O2, k=0˜0.20; m and n represent the numbers of moles of templating agents R1 and R2 corresponding to per mole of (SixAly)O2, m=0˜0.20, n=0.01˜0.20; x, y respectively represents the mole fraction of Si and Al, 2x/y=7-40, and x+y=1; R1, R2 are independently selected from one of nitrogen-containing heterocyclic compounds and their derivatives, and quaternary ammonium compounds. Also disclosed in the present application is a synthesis method for the high-silica Y molecular sieve having FAU topology.Type: ApplicationFiled: September 17, 2019Publication date: September 29, 2022Inventors: Peng TIAN, Dali ZHU, Zhongmin LIU, Linying WANG, Jianming ZHANG, Xuebin ZHAO