Patents by Inventor Liquan Li
Liquan Li 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: 12227462Abstract: Disclosed is a carbon fiber preform, a preparation method therefor and a preparation method for carbon/carbon composites, falling within the technical field of composites. The carbon fiber preform provided by the present disclosure includes a plurality of stacked carbon fiber cloths and prestressed layers arranged between every two of adjacent carbon fiber cloths, the prestressed layer including a boron-containing phenol-formaldehyde resin coating and carbon fiber bundles distributed within the boron-containing phenol-formaldehyde resin coating. In the present disclosure, the prestressed layers are formed by adding the carbon fiber bundles and a boron-containing phenol-formaldehyde resin precursor to a two dimensional (2D) stacked preform, thereby counteracting internal stresses during carbonization and obtaining a carbon/carbon composite having higher strength and being less prone to cracking.Type: GrantFiled: August 24, 2022Date of Patent: February 18, 2025Assignee: SHAOXING RESEARCH INSTITUTE OF SHANGHAI UNIVERSITYInventors: Aijun Li, Lixin Ning, Zhiwei Kang, Zhiwei Li, Liquan Chen, Liqi Liu, Lintao Jia, Mengqian Wang
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Patent number: 11772091Abstract: The present disclosure relates to a method and an apparatus for treating, sorting and recycling an oil-containing discharged catalyst. There is provided a method for treating, sorting and recycling an oil-containing discharged catalyst, wherein the method comprises the following steps: (A) cyclonic washing and on-line activation of a discharged catalyst; (B) cyclonic spinning solvent stripping of the catalyst; (C) gas stream acceleration sorting of a high activity catalyst; (D) cyclonic restriping and particle capture of the high activity catalyst; and (E) cooling of the gas and condensation removal of the solvent. There is further provided an apparatus for treating, sorting and recycling an oil-containing discharged catalyst.Type: GrantFiled: December 8, 2017Date of Patent: October 3, 2023Assignees: Shanghai Huachang Environmental Protection Co., Ltd, Sichuan UniversityInventors: Hualin Wang, Pengbo Fu, Zhaohui Huang, Aibin Huang, Cheng Huang, Jianhuai Sun, Ying Zhao, Liquan Li, Chonggang Chen, Qian Zeng, Jianping Li, Yilin Fang, Fei Wang, Xia Jiang
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Publication number: 20230092425Abstract: A method for preparing a high-quality fuel oil and/or chemical raw material from a biomass pyrolysis liquid. In the method, a biomass pyrolysis liquid undergoes a hydrodeoxygenation reaction in a catalyst full mixing flow circulation system in a fluidized bed reactor to obtain deoxygenated oil, and the obtained deoxygenated oil undergoes a hydrocracking reaction in a fixed bed reactor to obtain high-quality fuel oil and/or a chemical raw material. The method may prevent the condensation and coking of a biomass pyrolysis liquid, solve the problem of rapid catalyst deactivation, and may convert a biomass pyrolysis liquid into a high-quality fuel oil that may be directly used by vehicles and into a chemical product.Type: ApplicationFiled: April 8, 2020Publication date: March 23, 2023Inventors: Liquan LI, Hualin WANG, Yuanping YUAN, Chonggang CHEN, Jianping LI, Ying ZHAO, Xuejing YANG, Junjie LI, Junrui CHAO, Xuhui ZHENG
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Patent number: 11446773Abstract: A Super304H steel welding wire capable of resisting high-temperature creep and aging embrittlement, includes the following chemical components in percentage by mass: 0.04-0.1% of C, 0.4-1.5% of Mn, 7.5-12.5% of Ni, ?0.5% of Si, 17.0-19.0% of Cr, ?0.4% of Mo, 2.5-3.5% of Cu, 0.3-0.6% of Nb, 0.05-0.12% of N, ?0.01% of S, ?0.02% of P and the balance of Fe and other inevitable impurity elements. The welding wire can be used for welding of Super304H steel used in ultra super critical thermal power stations, has a weld being in a double-phase structure of austenite and a small amount of ferrite (volume fraction is 3-12%), and has good hot cracking resistance capability.Type: GrantFiled: December 8, 2019Date of Patent: September 20, 2022Assignees: WUHAN UNIVERSITY, POWER CHINA HENAN ENGINEERING CO., LTD.Inventors: Xue Wang, You Li, Yucheng Chen, Dongxu Chen, Jianhua Sun, Liquan Li, Meihua Guo
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Patent number: 11345975Abstract: The main steps are as follows: purification, de-leading, recovery and filtration, dissolving lead, hot filtration, cooling filtration, washing and hot decomposition, silver is recycled as silver powder, lead was recovered in the form of red lead, yellow lead and chlorinated lead respectively. Compared to existing technologies, the invention adopts a wet process, the amount of waste gas and dust produced in the process of fire treatment is reduced; silver powder, red (yellow) lead and chloride lead were obtained, it can be sold as final product with high value-added features. The tail liquid produced by the process returns to the corresponding process respectively, and the tailless liquid is discharged. The pyrolysis flue gas returns to the lead removal process, flue gas treatment process is reduced, lead smoke pollution is avoided. This method has the characteristics of simple technics and pollution-free process.Type: GrantFiled: November 21, 2017Date of Patent: May 31, 2022Assignee: BEIJING UNIVERSITY OF TECHNOLOGYInventors: De'an Pan, Yufeng Wu, Liquan Li
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Publication number: 20200269229Abstract: The present disclosure relates to a method and an apparatus for treating, sorting and recycling an oil-containing discharged catalyst. There is provided a method for treating, sorting and recycling an oil-containing discharged catalyst, wherein the method comprises the following steps: (A) cyclonic washing and on-line activation of a discharged catalyst; (B) cyclonic spinning solvent stripping of the catalyst; (C) gas stream acceleration sorting of a high activity catalyst; (D) cyclonic restriping and particle capture of the high activity catalyst; and (E) cooling of the gas and condensation removal of the solvent. There is further provided an apparatus for treating, sorting and recycling an oil-containing discharged catalyst.Type: ApplicationFiled: December 8, 2017Publication date: August 27, 2020Inventors: Hualin Wang, Pengbo Fu, Zhaohui Huang, Aibin Huang, Cheng Huang, Jianhuai Sun, Ying Zhao, Liquan Li, Chonggang Chen, Qian Zeng, Jianping Li, Yilin Fang, Fei Wang, Xia Jiang
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Publication number: 20200108472Abstract: The disclosure provides a Super304H steel welding wire capable of resisting high-temperature creep and aging embrittlement, which comprises the following chemical components in percentage by mass: 0.04-0.1% of C, 0.4-1.5% of Mn, 7.5-12.5% of Ni, ?0.5% of Si, 17.0-19.0% of Cr, ?0.4% of Mo, 2.5-3.5% of Cu, 0.3-0.6% of Nb, 0.05-0.12% of N, ?0.01% of S, ?0.02% of P and the balance of Fe and other inevitable impurity elements. The Welding wire can be used for welding of Super304H steel used in ultra super critical thermal power stations, has a weld being in a double-phase structure of austenite and a small amount of ferrite (volume fraction is 3-12%), and has good hot cracking resistance capability.Type: ApplicationFiled: December 8, 2019Publication date: April 9, 2020Inventors: Xue WANG, You LI, Yucheng CHEN, Dongxu CHEN, Jianhua SUN, Liquan LI, Meihua GUO
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Publication number: 20190032170Abstract: The main steps are as follows: purification, de-leading, recovery and filtration, dissolving lead, hot filtration, cooling filtration, washing and hot decomposition, silver is recycled as silver powder, lead was recovered in the form of red lead, yellow lead and chlorinated lead respectively. Compared to existing technologies, the invention adopts a wet process, the amount of waste gas and dust produced in the process of fire treatment is reduced; silver powder, red (yellow) lead and chloride lead were obtained, it can be sold as final product with high value-added features. The tail liquid produced by the process returns to the corresponding process respectively, and the tailless liquid is discharged. The pyrolysis flue gas returns to the lead removal process, flue gas treatment process is reduced, lead smoke pollution is avoided. This method has the characteristics of simple technics and pollution-free process.Type: ApplicationFiled: November 21, 2017Publication date: January 31, 2019Inventors: De'an Pan, Yufeng Wu, Liquan Li
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Patent number: 10041010Abstract: The invention relates to a process and a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil. Provided is a process for treating a catalyst discharged from bubbling bed hydrogenation of residual oil, comprising the following steps: (1) adjustment and control to reduce viscosity; (2) desorption and separation by rotational flow; and (3) separation and resource utilization of an oil-water-catalyst three phase. Also provided is a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil.Type: GrantFiled: July 25, 2012Date of Patent: August 7, 2018Assignee: Shanghai Huachang Environmental Protection Co., Ltd.Inventors: Jianping Li, Jiangang Wang, Hualin Wang, Yanhong Zhang, Xin Cui, Ling Shen, Liquan Li, Chonggang Chen, Qian Zeng, Ying Zhao
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Patent number: 9302910Abstract: The invention relates to a short-flow process for desulfurization of circulating hydrogen and a device for the same. A short-flow process for desulfurization of circulating hydrogen is provided, comprising: (a) removing hydrocarbons from the circulating hydrogen mixture, so that the liquid drops of the heavy hydrocarbons in the dispersion phase are separated from the circulating hydrogen in the continuous phase, and a heavy hydrocarbon phase and a mixture phase of circulating hydrogen containing sulfur are obtained; (b) further separating the resultant mixture phase to remove the sulfides therein, so that circulating hydrogen without sulfur is obtained; (c) further separating the resultant circulating hydrogen without sulfur to remove the amine solution therein, so that purified circulating hydrogen is obtained. The invention also provides a device for desulfurization of circulating hydrogen.Type: GrantFiled: September 10, 2009Date of Patent: April 5, 2016Assignees: SHANGHAI HUACHANG ENVIRONMENT PROTECTION CO., LTD., LUOYANG PETROCHEMICAL ENGINEERING CORPORATION (LPEC)/SINOPECInventors: Hualin Wang, Ji Ma, Zhuoqun Qian, Yanhong Zhang, Liquan Li, Qian Zeng, Chonggang Chen, Qiang Yang, Xiaomei Xu, Xin Cui
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Publication number: 20150218463Abstract: The invention relates to a process and a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil. Provided is a process for treating a catalyst discharged from bubbling bed hydrogenation of residual oil, comprising the following steps: (1) adjustment and control to reduce viscosity; (2) desorption and separation by rotational flow; and (3) separation and resource utilization of an oil-water-catalyst three phase. Also provided is a device for treating a catalyst discharged from bubbling bed hydrogenation of residual oil.Type: ApplicationFiled: July 25, 2012Publication date: August 6, 2015Applicant: Shanghai Huachang Environmental Protection Co., Ltd.Inventors: Jianping Li, Jiangang Wang, Hualin Wang, Yanhong Zhang, Xin Cui, Ling Shen, Liquan Li, Chonggang Chen, Qian Zeng, Ying Zhao
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Publication number: 20100104498Abstract: The invention relates to a short-flow process for desulfurization of circulating hydrogen and a device for the same. A short-flow process for desulfurization of circulating hydrogen is provided, comprising: (a) removing hydrocarbons from the circulating hydrogen mixture, so that the liquid drops of the heavy hydrocarbons in the dispersion phase are separated from the circulating hydrogen in the continuous phase, and a heavy hydrocarbon phase and a mixture phase of circulating hydrogen containing sulfur are obtained; (b) further separating the resultant mixture phase to remove the sulfides therein, so that circulating hydrogen without sulfur is obtained; (c) further separating the resultant circulating hydrogen without sulfur to remove the amine solution therein, so that purified circulating hydrogen is obtained. The invention also provides a device for desulfurization of circulating hydrogen.Type: ApplicationFiled: September 10, 2009Publication date: April 29, 2010Inventors: Hualin Wang, Ji Ma, Zhuoqun Qian, Yanhong Zhang, Liquan Li, Qian Zeng, Chonggang Chen, Qiang Yang, Xiaomei Xu, Xin Cui