Patents by Inventor Fushan Wen

Fushan Wen 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: 11292038
    Abstract: A combined remediation method of petroleum-contaminated soil includes: impurity removal pretreatment, photocatalytic pre-oxidation, stepwise thermal desorption of petroleum from soil, and high-temperature oxidation; with iron-titanium composite metal oxide (ITCMO) as a catalyst, conducting oxidation pretreatment under light conditions so that some cross-linked structures in macromolecular petroleum contaminants are broken and degraded; and conducting stepwise pyrolysis to achieve a removal rate of more than 98.00%. The new method adopts a combined remediation technology of photocatalytic pre-oxidation-stepwise pyrolysis, which realizes a relatively-high removal rate of petroleum hydrocarbons and the efficient and harmless remediation of high-concentration petroleum-contaminated soil, and remedied soil can be reused.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: April 5, 2022
    Assignee: CHINA UNIVERSITY OF PETROLEUM
    Inventors: Dong Liu, Shuhai Guo, Wei Zhu, Fushan Wen, Nan Shi, Yu Qiu, Xiaoning Feng, Bo Wu, Gang Li, Changlong Yin, Xiujie Yang, Dehui Kong, Hongbo Dai, Mengfei Li, Sa Wang
  • Publication number: 20210370365
    Abstract: A combined remediation method of petroleum-contaminated soil includes: impurity removal pretreatment, photocatalytic pre-oxidation, stepwise thermal desorption of petroleum from soil, and high-temperature oxidation; with iron-titanium composite metal oxide (ITCMO) as a catalyst, conducting oxidation pretreatment under light conditions so that some cross-linked structures in macromolecular petroleum contaminants are broken and degraded; and conducting stepwise pyrolysis to achieve a removal rate of more than 98.00%. The new method adopts a combined remediation technology of photocatalytic pre-oxidation-stepwise pyrolysis, which realizes a relatively-high removal rate of petroleum hydrocarbons and the efficient and harmless remediation of high-concentration petroleum-contaminated soil, and remedied soil can be reused.
    Type: Application
    Filed: October 19, 2020
    Publication date: December 2, 2021
    Applicant: China University of Petroleum
    Inventors: Dong LIU, Shuhai GUO, Wei ZHU, Fushan WEN, Nan SHI, Yu QIU, Xiaoning FENG, Bo WU, Gang LI, Changlong YIN, Xiujie YANG, Dehui KONG, Hongbo DAI, Mengfei LI, Sa WANG
  • Patent number: 11149361
    Abstract: Preparation methods of a high modulus carbon fiber (HMCF) and a precursor (mesophase pitch (MP)) thereof are provided. The preparation method of MP includes: separating components with a molecular weight distribution (MWD) of 400 to 1,000 from a heavy oil raw material through size-exclusion chromatography (SEC); subjecting the components to ion-exchange chromatography (IEC) to obtain modified feedstock oil, where, the components are passed through macroporous cation-exchange and anion-exchange resins in sequence to remove acidic and alkaline components; and subjecting the modified feedstock oil to thermal polycondensation and carbonization to obtain high-quality MP with prominent spinnability. With high mesophase content, low softening point, low viscosity, and prominent meltability and spinnability, the obtained MP is a high-quality raw material for preparing HMCFs. The obtained MP can be subjected to melt spinning, pre-oxidation, carbonization, and graphitization to obtain an MP-based HMCF.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: October 19, 2021
    Assignee: CHINA UNIVERSITY OF PETROLEUM
    Inventors: Dong Liu, Xin Gong, Bin Lou, Jun Li, Zhihao Li, Nan Shi, Fushan Wen, Hui Du, Zhaojun Chen, Changlong Yin, Xiujie Yang, Luning Chai, Zhichen Zhang, Enqiang Yu, Yu'e Fu, Huizhi Yuan, Jianguo Zhang, Zhiqing Ma, Chong Jiao, Yonggang Cao