Patents by Inventor Chenghang ZHENG

Chenghang ZHENG 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: 20230285891
    Abstract: The invention relates to a low-cost and high-efficiency absorption-desorption decoupling method for contaminant-CO2 synergistic capture. According to the method, an optimization model of absorption-desorption decoupling control for contaminant-CO2 synergistic capture under different working conditions is built, the optimization objective is to obtain high-purity liquid contaminants and CO2 at low cost and efficiently, and an adaptive penalty function is constructed to transform a solution of a constrained optimization problem into that of an unconstrained optimization problem, thereby controlling parameters in a real-time, precise and stable manner. Moreover, supported by means of flue gas pre-scrubbing and cooling, multi-stage intercooling and column-top demisting, the method of the present invention achieves efficient capture of contaminants and CO2.
    Type: Application
    Filed: March 11, 2023
    Publication date: September 14, 2023
    Inventors: CHENGHANG ZHENG, XIANG GAO, CHANG LIU, CAN ZHOU, YONGXIN ZHANG, YOU ZHANG, YANG ZHANG, QINWU LI, WEIGUO WENG, WEIHONG WU, XIAO ZHANG, TAO WANG
  • Publication number: 20230033705
    Abstract: The present invention relates to a method for carbon dioxide capture and concentration by partitioned multistage circulation based on mass transfer-reaction regulation. In the present invention, multiple means such as multistage circulating absorption, intelligent multi-factor regulation, pre-washing and cooling, inter-stage cooling, post-stage washing, slurry cleaning, cooling water waste heat utilization, small-particle-size and high-density spraying, external strengthening field such as a thermal field/ultrasonic field/electric field, and catalysis by composite catalyst are adopted, so that the target for low cost, low energy consumption, stability and high efficiency is realized. The secondary pollutants are effectively inhibited while carbon dioxide is efficiently captured; meanwhile, high-efficiency capture, low-energy desorption, and high-purity concentration of carbon dioxide are implemented.
    Type: Application
    Filed: December 30, 2021
    Publication date: February 2, 2023
    Inventors: XIANG GAO, CHENGHANG ZHENG, CHANG LIU, CAN ZHOU, YOU ZHANG, ZHONGYANG ZHAO, YONGXIN ZHANG, YANG ZHANG, QINWU LI, WEIGUO WENG, WEIHONG WU, QINGYI LI, XIAO ZHANG, TAO WANG
  • Publication number: 20210319373
    Abstract: The invention relates to an intelligent multi-pollutant ultra-low emission system and a global optimization method thereof. The intelligent multi-pollutant ultra-low emission system comprises a device layer, a sensing layer, a control layer and an optimization layer from bottom to top.
    Type: Application
    Filed: October 30, 2019
    Publication date: October 14, 2021
    Inventors: XIANG GAO, CHENGHANG ZHENG, YUEQI HUANG, YISHAN GUO, YONGXIN ZHANG, WEIGUO WENG, WEIHONG WU, RUIYANG QU, SHAOJUN LIU, HAITAO ZHAO
  • Patent number: 10821397
    Abstract: The present invention is related a square packed tower for collection of flue gas CO2. The square packed tower comprises an initial absorbent distributor on the lower end of the flue gas outlet, a vertical plate packer on the lower end of the initial absorbent distributor and a radial diversion gas distributor at the bottom of the square packed tower for delivery of carbon dioxide contained in the flue gas. The radial diversion gas distributor comprises a gas inlet pipe, a butterfly base plate, a butterfly seal plate and numerous radial deflectors. The butterfly base plate is connected with outlet of the gas inlet pipe. The radial deflectors are in radial arrangement between the butterfly base plate and butterfly seal plate along the outlet of gas inlet pipe.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: November 3, 2020
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Tao Wang, Mengxiang Fang, Wenfeng Dong, Qinhui Wang, Jianmeng Cen, Leming Cheng, Gang Xiao, Chenghang Zheng, Jinsong Zhou, Shurong Wang, Xiang Gao, Zhongyang Luo, Mingjiang Ni, Kefa Cen
  • Patent number: 10578341
    Abstract: A dual-cavity method and device for collecting and storing solar energy with metal oxide particles. Solar radiation irradiates into a light receiving cavity of a dual-cavity, heat-collecting reactor to heat a separating plate and preheat metal oxide particles. The preheated metal oxide particles then enter a reacting cavity. As temperature increases, the metal oxide particles reduce to release oxygen, which discharges through a gas outlet. Reduced metal oxide particles discharge through a particle outlet into a particle storage tank, and then into an oxidation heat exchanger to react with the discharged oxygen discharged to release and transfer stored chemical energy to a medium to be heated. The oxidized metal oxide particles are conveyed into a storage tank, and again enter into a particle inlet of the light receiving cavity. Ambient air controls the gas flow rate in the reactor and the reacting rate in exchanger.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: March 3, 2020
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Gang Xiao, Tianfeng Yang, Mingjiang Ni, Zhongyang Luo, Xiang Gao, Kefa Cen, Mengxiang Fang, Jinsong Zhou, Zhenglun Shi, Leming Cheng, Qinhui Wang, Shurong Wang, Chunjiang Yu, Tao Wang, Chenghang Zheng
  • Patent number: 10533494
    Abstract: A solar chemically recuperated gas turbine system includes an exhaust-gas reformer, a solar reformer and a gas turbine unit with a combustion chamber. The reaction outlet of the exhaust-gas reformer is connected to the inlet of the solar reformer, the flue gas side inlet of the exhaust-gas reformer is connected to the exhaust-gas outlet of the gas turbine. The solar reformer outlet is connected to the combustion chamber inlet. Combustion gas drives the gas turbine after fuel burns in the combustion chamber, and the exhaust gas enters the exhaust-gas reformer. Fuel and steam are mixed and enter the reaction side of the exhaust-gas reformer through a fuel inlet. A reforming reaction between the fuel and steam under heating of the exhaust gas generates syngas. A further reforming reaction occurs by absorbing concentrated solar energy after the syngas enters the solar reformer, and the reactant is provided to combustion chamber.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: January 14, 2020
    Assignee: Zhejiang University
    Inventors: Gang Xiao, Tianfeng Yang, Mingjiang Ni, Zhongyang Luo, Xiang Gao, Kefa Cen, Mengxiang Fang, Jinsong Zhou, Zhenglun Shi, Leming Cheng, Qinhui Wang, Shurong Wang, Chunjiang Yu, Tao Wang, Chenghang Zheng
  • Patent number: 10494996
    Abstract: A device of high-temperature solar gas turbine power generation with thermal energy storage includes a combustion chamber, a solar receiver, a thermochemical energy storage tank, a triple valve A and a triple valve B. The thermochemical energy storage tank has a high-temperature side and a low-temperature side. One outlet of the triple valve A is connected to the compressed air inlet of the solar receiver, and the other outlet is connected to the inlet of the triple valve B. One outlet of the triple valve B is connected to the low-temperature side of the thermochemical energy storage tank, and the other outlet is connected to the inlet of the combustion chamber.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: December 3, 2019
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Gang Xiao, Xin Zhou, Huanlei Liu, Jinli Chen, Tianfeng Yang, Mingjiang Ni, Zhongyang Luo, Leming Cheng, Xiang Gao, Kefa Cen, Mengxiang Fang, Jinsong Zhou, Zhenglun Shi, Qinhui Wang, Shurong Wang, Chunjiang Yu, Tao Wang, Chenghang Zheng
  • Publication number: 20190099712
    Abstract: The present invention is related a square packed tower for collection of flue gas CO2. The square packed tower comprises an initial absorbent distributor on the lower end of the flue gas outlet, a vertical plate packer on the lower end of the initial absorbent distributor and a radial diversion gas distributor at the bottom of the square packed tower for delivery of carbon dioxide contained in the flue gas. The radial diversion gas distributor comprises a gas inlet pipe, a butterfly base plate, a butterfly seal plate and numerous radial deflectors. The butterfly base plate is connected with outlet of the gas inlet pipe. The radial deflectors are in radial arrangement between the butterfly base plate and butterfly seal plate along the outlet of gas inlet pipe. Such square packed tower has solved such problems as low mass transfer efficiency, uneven distribution of gas phase inside the tower and high investment.
    Type: Application
    Filed: November 27, 2017
    Publication date: April 4, 2019
    Inventors: TAO WANG, MENGXIANG FANG, WENFENG DONG, QINHUI WANG, JIANMENG CEN, LEMING CHENG, GANG XIAO, CHENGHANG ZHENG, JINSONG ZHOU, SHURONG WANG, XIANG GAO, ZHONGYANG LUO, MINGJIANG NI, KEFA CEN
  • Publication number: 20180045113
    Abstract: A device of high-temperature solar gas turbine power generation with thermal energy storage includes a combustion chamber, a solar receiver, a thermochemical energy storage tank, a triple valve A and a triple valve B. The thermochemical energy storage tank has a high-temperature side and a low-temperature side. One outlet of the triple valve A is connected to the compressed air inlet of the solar receiver, and the other outlet is connected to the inlet of the triple valve B. One outlet of the triple valve B is connected to the low-temperature side of the thermochemical energy storage tank, and the other outlet is connected to the inlet of the combustion chamber.
    Type: Application
    Filed: May 5, 2017
    Publication date: February 15, 2018
    Inventors: Gang Xiao, Xin Zhou, Huanlei Liu, Jinli Chen, Tianfeng Yang, Mingjiang Ni, Zhongyang Luo, Leming Cheng, Xiang Gao, Kefa Cen, Mengxiang Fang, Jinsong Zhou, Zhenglun Shi, Qinhui Wang, Shurong Wang, Chunjiang Yu, Tao Wang, Chenghang Zheng
  • Patent number: 9802180
    Abstract: Disclosed are a catalyst for synergistic control of oxynitride and mercury and a method for preparing the same. The catalyst includes the following components by mass percentage: a carrier: TiO2 72%-98.6%, active components: V2O5 0.1%-5%, WO3 1%-10%, Cr2O3 0.1%-5% and Nb2O5 0.1%-5%, and a co-catalyst of 0.1%-3%. The present invention can be used for reducing the oxynitrides in a flue gas, meanwhile oxidizing zero-valent mercury into bivalent mercury and then controlling the reactions, has relatively high denitration performance and also has high mercury oxidation performance; compared with current commercial SCR catalysts, the mercury oxidation rate of the catalyst is improved to a great extent, which can adapt to the requirements for mercury removal in China's coal-fired power plants, the conversion rate of SO2/SO3 is relatively low, and the catalyst has a better anti-poisoning ability, and is a new catalyst with a low cost and high performance.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: October 31, 2017
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Xiang Gao, Kunzan Qiu, Chenghang Zheng, Hao Song, Weihong Wu, Xinbo Zhu, Hongmin Yu, Dian Xu, Zhongyang Luo, Kefa Cen, Mingjiang Ni
  • Publication number: 20170298818
    Abstract: A solar chemically recuperated gas turbine system includes an exhaust-gas reformer, a solar reformer and a gas turbine unit with a combustion chamber. The reaction outlet of the exhaust-gas reformer is connected to the inlet of the solar reformer, the flue gas side inlet of the exhaust-gas reformer is connected to the exhaust-gas outlet of the gas turbine. The solar reformer outlet is connected to the combustion chamber inlet. Combustion gas drives the gas turbine after fuel burns in the combustion chamber, and the exhaust gas enters the exhaust-gas reformer. Fuel and steam are mixed and enter the reaction side of the exhaust-gas reformer through a fuel inlet. A reforming reaction between the fuel and steam under heating of the exhaust gas generates syngas. A further reforming reaction occurs by absorbing concentrated solar energy after the syngas enters the solar reformer, and the reactant is provided to combustion chamber.
    Type: Application
    Filed: April 17, 2017
    Publication date: October 19, 2017
    Inventors: Gang Xiao, Tianfeng Yang, Mingjiang Ni, Zhongyang Luo, Xiang Gao, Kefa Cen, Mengxiang FANG, Jinsong Zhou, Zhenglun Shi, Leming Cheng, Qinhui Wang, Shurong Wang, Chunjiang Yu, Tao Wang, Chenghang Zheng
  • Publication number: 20170191697
    Abstract: A dual-cavity method and device for collecting and storing solar energy with metal oxide particles. Solar radiation irradiates into a light receiving cavity of a dual-cavity, heat-collecting reactor to heat a separating plate and preheat metal oxide particles. The preheated metal oxide particles then enter a reacting cavity. As temperature increases, the metal oxide particles reduce to release oxygen, which discharges through a gas outlet. Reduced metal oxide particles discharge through a particle outlet into a particle storage tank, and then into an oxidation heat exchanger to react with the discharged oxygen discharged to release and transfer stored chemical energy to a medium to be heated. The oxidized metal oxide particles are conveyed into a storage tank, and again enter into a particle inlet of the light receiving cavity. Ambient air controls the gas flow rate in the reactor and the reacting rate in exchanger.
    Type: Application
    Filed: December 12, 2014
    Publication date: July 6, 2017
    Inventors: Gang XIAO, Tianfeng YANG, Mingjiang NI, Zhongyang LUO, Xiang GAO, Kefa CEN, Mengxiang FANG, Jinsong ZHOU, Zhenglun SHI, Leming CHENG, Qinhui WANG, Shurong WANG, Chunjiang YU, Tao WANG, Chenghang ZHENG
  • Publication number: 20160354766
    Abstract: Disclosed are a catalyst for synergistic control of oxynitride and mercury and a method for preparing the same. The catalyst includes the following components by mass percentage: a carrier: TiO2 72%-98.6%, active components: V2O5 0.1%-5%, WO3 1%-10%, Cr2O3 0.1%-5% and Nb2O5 0.1%-5%, and a co-catalyst of 0.1%-3%. The present invention can be used for reducing the oxynitrides in a flue gas, meanwhile oxidizing zero-valent mercury into bivalent mercury and then controlling the reactions, has relatively high denitration performance and also has high mercury oxidation performance; compared with current commercial SCR catalysts, the mercury oxidation rate of the catalyst is improved to a great extent, which can adapt to the requirements for mercury removal in China's coal-fired power plants, the conversion rate of SO2/SO3 is relatively low, and the catalyst has a better anti-poisoning ability, and is a new catalyst with a low cost and high performance.
    Type: Application
    Filed: December 11, 2013
    Publication date: December 8, 2016
    Inventors: Xiang GAO, Kunzan QIU, Chenghang ZHENG, Hao SONG, Weihong WU, Xinbo ZHU, Hongmin YU, Dian XU, Zhongyang LUO, Kefa CEN, Mingjiang NI