Patents by Inventor Yongxian Zhou

Yongxian Zhou 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: 12103058
    Abstract: The present invention discloses a soil remediation device and method. Soil is remediated by (i) introducing hot air at 550-650° C. from an outlet of an air heater into the drum from a circulating hot air inlet of a discharge end fixed hood and transferring heat with the soil by direct countercurrent contact such that the soil is heated, and (ii) releasing heat from a heat accumulator at a bottom of the drum through heat pipes such that the soil is heated. As a temperature of the soil gradually rises to about 300-500° C., water and organic contaminants in the soil are volatilized into a gaseous state and carry dust to become thermal desorption offgas that is separated from the soil, the thermal desorption offgas becoming part of the hot air and flowing from the drum to a dust remover. Part of the hot air is recirculated to the drum, and another part of the hot air is discharged after being purified.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: October 1, 2024
    Assignees: NANJING TECH UNIVERSITY, CSSC NANJING LUZHOU ENVIRONMENT PROTECTION CO., LTD., NANJING INSTITUTE OF ENVIRONMENTAL SCIENCES, MINISTRY OF ECOLOGY AND ENVIRONMENT OF THE PEOPLE'S REPUBLIC OF CHINA
    Inventors: Haitao Xu, Yongxian Zhou, Shengtian Zhang, Xiang Ling, Jisai Chen, Haiyan Qin, Xiaofeng Wang, Sun Hu
  • Patent number: 11745162
    Abstract: The present invention relates to a regenerable hydrogen sulfide adsorbent and a preparation method thereof. The preparation method specifically includes: 1) combining meta-aluminate as an active component with activated alumina as a carrier in a manner of impregnation, spray coating or solid phase mixing to obtain a precursor; 2) aging and drying the precursor, and finally performing roasting to obtain the adsorbent; and 3) processing the adsorbent to present a specific size and shape through shaping measures to meet industrial application requirements. Compared with the prior art, the adsorbent obtained according to the present invention can achieve an efficient removal effect on hydrogen sulfide gas at a material inlet, with a concentration adaption range of 0 to 1000 ppm and an effective removal precision of 0.1 ppm or below.
    Type: Grant
    Filed: November 26, 2021
    Date of Patent: September 5, 2023
    Assignees: SHANGHAI LVQIANG NEW MATERIALS CO., LTD, SHANGHAI RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD
    Inventors: Pengfei Wang, Chuncheng Li, Qiuping He, Jia Zhang, Yongxian Zhou, Cheng Chen, Wei Chen
  • Patent number: 11724292
    Abstract: A medium internal circulation enhanced thermal desorption soil remediation reactor and a method thereof, and belongs to the technical field of soil remediation. Internal circulation of a thermal medium is realized through a specially designed rotary drum structure, and a way for heating soil by utilizing oxidative decomposition of organic contaminants is provided, so that the treatment efficiency of an apparatus and the contaminant removal effect are improved significantly on the premise of not increasing the scale of the apparatus, and at the same time, the energy consumption of a system is reduced.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: August 15, 2023
    Assignees: NANJING TECH UNIVERSITY, CSSC NANJING LUZHOU ENVIRONMENT PROTECTION CO., LTD., NANJING INSTITUTE OF ENVIRONMENTAL SCIENCES
    Inventors: Haitao Xu, Xiang Ling, Shengtian Zhang, Yongxian Zhou, Jisai Chen, Xiaofeng Wang, Sun Hu, Haiyan Qin
  • Patent number: 11697142
    Abstract: A hot air circulation type indirect thermal desorption-based soil remediation system and method, belonging to the technical field of soil remediation. The system includes a thermal desorption reactor, a dust remover, a hot air circulating fan, a hot air heater, an air preheater, a combustion fan and a combustion device. By using thermal desorption gas generated by soil being heated and volatilized as a heat transfer medium and by a circular heating manner, hot air efficiently transfers heat to the soil by contact, and the high-temperature fume is kept from direct contact with the soil, so the system has the advantages of high treatment capacity, small equipment scale and the like.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: July 11, 2023
    Assignees: CSSC NANJING LUZHOU ENVIRONMENT PROTECTION CO., LTD., NANJING TECH UNIVERSITY, NANJING INSTITUTE OF ENVIRONMENTAL SCIENCES, MINISTRY OF ECOLOGY AND ENVIRONMENT
    Inventors: Yongxian Zhou, Jisai Chen, Haitao Xu, Shengtian Zhang, Hongqi Wang, Qinrui Wu, Yongliang Zhang, Xiang Ling
  • Publication number: 20220176423
    Abstract: A heat pipe-enhanced heat accumulation type indirect thermal desorption-based soil remediation device and method. On the one hand, by using thermal desorption gas generated by soil through heating and volatilizing as a heat transfer medium and by a circular heating manner, hot air efficiently transfers heat to the soil by contact, the treatment capacity of equipment is high. Moreover, high-temperature flue gas is kept from direct contact with the soil, so the high-temperature flue gas is prevented from being mixed with gaseous organic contaminants. Therefore, only a small amount of excess gas needs to be purified, so the equipment scale is small. On the other hand, by equipping a reactor with heat pipes and a ceramic heat accumulator, a second soil heating manner is provided, so that the heat transfer capacity per unit volume of the reactor is increased, and the treatment efficiency is significantly improved under the same scale.
    Type: Application
    Filed: December 3, 2021
    Publication date: June 9, 2022
    Applicants: NANJING TECH UNIVERSITY, CSSC NANJING LUZHOU ENVIRONMENT PROTECTION CO., LTD., NANJING INSTITUTE OF ENVIRONMENTAL SCIENCES, MINISTRY OF ECOLOGY AND ENVIRONMENT OF THE PEOPLE'S REP
    Inventors: Haitao XU, Yongxian ZHOU, Shengtian ZHANG, Xiang LING, Jisai CHEN, Haiyan QIN, Xiaofeng WANG, Sun HU
  • Publication number: 20220176425
    Abstract: A hot air circulation type indirect thermal desorption-based soil remediation system and method, belonging to the technical field of soil remediation. The system includes a thermal desorption reactor, a dust remover, a hot air circulating fan, a hot air heater, an air preheater, a combustion fan and a combustion device. By using thermal desorption gas generated by soil being heated and volatilized as a heat transfer medium and by a circular heating manner, hot air efficiently transfers heat to the soil by contact, and the high-temperature fume is kept from direct contact with the soil, so the system has the advantages of high treatment capacity, small equipment scale and the like.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 9, 2022
    Applicants: CSSC NANJING LUZHOU ENVIRONMENT PROTECTION CO., LTD., NANJING TECH UNIVERSITY, NANJING INSTITUTE OF ENVIRONMENTAL SECIENCES, MINISTRY OF ECOLOGY AND ENVIRONMENT
    Inventors: Yongxian ZHOU, Jisai CHEN, Haitao XU, Shengtian ZHANG, Hongqi WANG, Qinrui WU, Yongliang ZHANG, Xiang LING
  • Publication number: 20220176424
    Abstract: A medium internal circulation enhanced thermal desorption soil remediation reactor and a method thereof, and belongs to the technical field of soil remediation. Internal circulation of a thermal medium is realized through a specially designed rotary drum structure, and a way for heating soil by utilizing oxidative decomposition of organic contaminants is provided, so that the treatment efficiency of an apparatus and the contaminant removal effect are improved significantly on the premise of not increasing the scale of the apparatus, and at the same time, the energy consumption of a system is reduced.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 9, 2022
    Applicants: NANJING TECH UNIVERSITY, CSSC NANJING LUZHOU ENVIRONMENT PROTECTION CO., LTD., NANJING INSTITUTE OF ENVIRONMENTAL SECIENCES, MINISTRY OF ECOLOGY AND ENVIRONMENT OF THE PEOPLE'S RE
    Inventors: Haitao XU, Xiang LING, Shengtian ZHANG, Yongxian ZHOU, Jisai CHEN, Xiaofeng WANG, Sun HU, Haiyan QIN
  • Publication number: 20220168703
    Abstract: The present invention relates to a regenerable hydrogen sulfide adsorbent and a preparation method thereof. The preparation method specifically includes: 1) combining meta-aluminate as an active component with activated alumina as a carrier in a manner of impregnation, spray coating or solid phase mixing to obtain a precursor; 2) aging and drying the precursor, and finally performing roasting to obtain the adsorbent; and 3) processing the adsorbent to present a specific size and shape through shaping measures to meet industrial application requirements. Compared with the prior art, the adsorbent obtained according to the present invention can achieve an efficient removal effect on hydrogen sulfide gas at a material inlet, with a concentration adaption range of 0 to 1000 ppm and an effective removal precision of 0.1 ppm or below.
    Type: Application
    Filed: November 26, 2021
    Publication date: June 2, 2022
    Applicants: SHANGHAI LVQIANG NEW MATERIALS CO., LTD, SHANGHAI RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD
    Inventors: Pengfei Wang, Chuncheng Li, Qiuping He, Jia Zhang, Yongxian Zhou, Cheng Chen, Wei Chen