Patents by Inventor Xiangao Wang

Xiangao Wang 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: 12351535
    Abstract: 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: Grant
    Filed: October 16, 2020
    Date of Patent: July 8, 2025
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Tao Zhang, Mao Ye, Jinling Zhang, Shuliang Xu, Hailong Tang, Xiangao Wang, Cheng Zhang, Jinming Jia, Jing Wang, Hua Li, Chenggong Li, Zhongmin Liu
  • Publication number: 20250207041
    Abstract: The application discloses a device and method for preparing aromatic hydrocarbons from naphtha, and the device comprises a fluidized bed reactor and a riser reactor; the fluidized bed reactor is used for introducing a naphtha raw material to make contact with a catalyst from the riser reactor and react to generate a BTX-containing product gas stream and a spent catalyst, the product gas stream is subjected to gas-solid separation, the product gas stream after separation is sent to a downstream working section, and unconverted naphtha after separation returns to the fluidized bed reactor as a raw material; and a part of low-carbon alkanes after separation return to the riser reactor as raw materials and are further converted into aromatic hydrocarbons and other components.
    Type: Application
    Filed: November 24, 2022
    Publication date: June 26, 2025
    Inventors: Tao ZHANG, Jiming ZHANG, Zhongmin LIU, Guochun YAN, Mao YE, Liang WEN, Jinling ZHANG, Yanbin ZHANG, Hailong TANG, Huadong LIN, Jinming JIA, Haibo XU, Cheng ZHANG, Zhichao MA, Xiangao WANG, Xiang WANG, Xiangang MA, Gangbin FAN, Jing WANG, Guangyue XIE, Tao LV, Qinbao KANG
  • Publication number: 20250197318
    Abstract: The present application discloses a device and method for preparing aromatic hydrocarbons by coupling naphtha and methanol. By adopting the device, under an action of a catalyst, the naphtha and the methanol react to generate product gas with aromatic hydrocarbons and a low-carbon olefin as main components. By the method of the application, linear-chain and branched-chain aliphatic hydrocarbons can be efficiently converted into aromatic hydrocarbons in a highly selective mode, a yield of p-xylene is also increased through a methylation reaction of aromatic hydrocarbons, and a content of p-xylene in a xylene mixture is greater than 75 wt %.
    Type: Application
    Filed: November 24, 2022
    Publication date: June 19, 2025
    Inventors: Mao YE, Guochun YAN, Zhongmin LIU, Jiming ZHANG, Tao ZHANG, Liang WEN, Jinling ZHANG, Yanbin ZHANG, Jinming JIA, Haibo XU, Hailong TANG, Tian YIN, Cheng ZHANG, Yanzhong JIAO, Xiangao WANG, Lipeng XIANG, Xiangang MA, Wei LIN, Jing WANG, Yan ZAO, Shunyu YAO, Zonglai ZHAO
  • Patent number: 12296329
    Abstract: 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: Grant
    Filed: October 16, 2020
    Date of Patent: May 13, 2025
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Mao Ye, Tao Zhang, Jinling Zhang, Shuliang Xu, Hailong Tang, Xiangao Wang, Cheng Zhang, Jinming Jia, Jing Wang, Hua Li, Chenggong Li, Zhongmin Liu
  • Patent number: 12296324
    Abstract: 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: Grant
    Filed: October 16, 2020
    Date of Patent: May 13, 2025
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Tao Zhang, Mao Ye, Jinling Zhang, Shuliang Xu, Hailong Tang, Xiangao Wang, Cheng Zhang, Jinming Jia, Jing Wang, Hua Li, Chenggong Li, Zhongmin Liu
  • Patent number: 12286594
    Abstract: 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: Grant
    Filed: October 16, 2020
    Date of Patent: April 29, 2025
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Mao Ye, Tao Zhang, Jinling Zhang, Shuliang Xu, Hailong Tang, Xiangao Wang, Cheng Zhang, Jinming Jia, Jing Wang, Hua Li, Chenggong Li, Zhongmin Liu
  • Patent number: 11975315
    Abstract: 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: Grant
    Filed: May 10, 2019
    Date of Patent: May 7, 2024
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Jinling Zhang, Mao Ye, Zhongmin Liu, Jibin Zhou, Tao Zhang, Xiangao Wang, Hailong Tang, Jing Wang
  • Patent number: 11872549
    Abstract: 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: Grant
    Filed: October 16, 2020
    Date of Patent: January 16, 2024
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Mao Ye, Tao Zhang, Jinling Zhang, Shuliang Xu, Hailong Tang, Xiangao Wang, Cheng Zhang, Jinming Jia, Jing Wang, Hua Li, Chenggong Li, Zhongmin Liu
  • Patent number: 11833502
    Abstract: 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: Grant
    Filed: October 16, 2020
    Date of Patent: December 5, 2023
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Tao Zhang, Mao Ye, Jinling Zhang, Shuliang Xu, Hailong Tang, Xiangao Wang, Cheng Zhang, Jinming Jia, Jing Wang, Hua Li, Chenggong Li, Zhongmin Liu
  • Patent number: 11712675
    Abstract: 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: Grant
    Filed: November 30, 2017
    Date of Patent: August 1, 2023
    Assignee: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Tao Zhang, Mao Ye, Zhongmin Liu, Jinling Zhang, Hailong Tang, Jinming Jia, Xiangao Wang, Cheng Zhang, Hua Li, Yinfeng Zhao, Chenggong Li
  • Publication number: 20230125888
    Abstract: 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: Application
    Filed: October 16, 2020
    Publication date: April 27, 2023
    Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Tao ZHANG, Mao YE, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
  • Publication number: 20230085715
    Abstract: 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: Application
    Filed: October 16, 2020
    Publication date: March 23, 2023
    Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Tao ZHANG, Mao YE, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
  • Publication number: 20230001371
    Abstract: 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: Application
    Filed: October 16, 2020
    Publication date: January 5, 2023
    Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Mao YE, Tao ZHANG, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
  • Publication number: 20230002682
    Abstract: 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: Application
    Filed: October 16, 2020
    Publication date: January 5, 2023
    Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Mao YE, Tao ZHANG, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
  • Publication number: 20230001370
    Abstract: 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: Application
    Filed: October 16, 2020
    Publication date: January 5, 2023
    Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Tao ZHANG, Mao YE, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
  • Publication number: 20220401905
    Abstract: 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: Application
    Filed: October 16, 2020
    Publication date: December 22, 2022
    Applicant: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Mao YE, Tao ZHANG, Jinling ZHANG, Shuliang XU, Hailong TANG, Xiangao WANG, Cheng ZHANG, Jinming JIA, Jing WANG, Hua LI, Chenggong LI, Zhongmin LIU
  • Patent number: 11504703
    Abstract: 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: Grant
    Filed: December 5, 2017
    Date of Patent: November 22, 2022
    Assignee: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Mao Ye, Jibin Zhou, Tao Zhang, Jinling Zhang, Yinfeng Zhao, Xiangao Wang, Jinming Jia, Hailong Tang, Zhongmin Liu
  • Publication number: 20220274099
    Abstract: 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: Application
    Filed: May 10, 2019
    Publication date: September 1, 2022
    Inventors: Jinling ZHANG, Mao YE, Zhongmin LIU, jIBIN ZHOU, Tao ZHANG, Xiangao WANG, Hailong TANG, Jing WANG
  • Patent number: 11311852
    Abstract: Disclosed are a fast fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, with the reactor, device and method being capable of solving or improving the problem of competition between an alkylation reaction and an MTO reaction during the process of producing the para-xylene and co-producing light olefins from toluene and methanol, thus achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, the competition between the alkylation reaction and the MTO reaction is coordinated and optimized to achieve a synergistic effect, thereby increasing the conversion rate of toluene, the yield of para-xylene and the selectivity of the light olefins.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: April 26, 2022
    Assignee: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Tao Zhang, Mao Ye, Zhongmin Liu, Jinling Zhang, Hailong Tang, Jinming Jia, Changqing He, Xiangao Wang, Cheng Zhang, Hua Li, Yinfeng Zhao, Chenggong Li
  • Patent number: 11180431
    Abstract: A turbulent fluidized bed reactor, device and method for preparing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, resolving or improving the competition problem between an MTO reaction and an alkylation reaction during the process of producing para-xylene and co-producing light olefins from methanol and/or dimethyl ether and toluene, and achieving a synergistic effect between the MTO reaction and the alkylation reaction. By controlling the mass transfer and reaction, competition between the MTO reaction and the alkylation reaction is coordinated and optimized to facilitate a synergistic effect of the two reactions, so that the conversion rate of toluene, the yield of para-xylene, and the selectivity of light olefins are increased. The turbulent fluidized bed reactor includes a first reactor feed distributor and a number of second reactor feed distributors and are arranged sequentially along the gas flow direction.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: November 23, 2021
    Assignee: DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Mao Ye, Tao Zhang, Zhongmin Liu, Jinling Zhang, Hailong Tang, Jinming Jia, Changqing He, Xiangao Wang, Cheng Zhang, Hua Li, Yinfeng Zhao, Chenggong Li