Patents by Inventor Beibei YAN
Beibei YAN 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: 11939528Abstract: A method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts, the method including: (1) mixing a first straw, seeding sludge and distilled water, and then carrying out anaerobic fermentation to obtain a mixed product after fermentation; (2) performing separation on the mixed product to obtain a second straw and biogas slurry; and (3) carbonizing the second straw to obtain biochar, and collecting gas after a pressurized catalytic reaction on the biogas slurry to obtain hydrogen.Type: GrantFiled: October 16, 2019Date of Patent: March 26, 2024Assignee: TIANJIN UNIVERSITYInventors: Guanyi Chen, Xiang Guo, Yurou Mao, Beibei Yan, Yanbin Zhang, Junyu Tao, Wanqing Li, Zhanjun Cheng, Wenchao Ma
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Publication number: 20230398512Abstract: A device for continuously producing hydrogen from polyester plastics by photocatalytic degradation is provided, including: a machine housing; a feeding mechanism provided at one side of the machine housing, a bottom of the feeding mechanism is in communication with a dissolving mechanism for transporting waste plastics to the dissolving mechanism; a dissolving mechanism provided inside the machine housing and configured for hydrolyzing the waste plastics into a solution containing small molecule monomers by means of a dissolving solution, the dissolving mechanism transports the solution to a photocatalytic reactor through a solution circulation pipeline; the solution circulation pipeline provided at the other side of the machine housing, two ends of the solution circulation pipeline are respectively connected to the dissolving mechanism and the photocatalytic reactor; the photocatalytic reactor provided above the dissolving mechanism and configured for degrading plastics in the solution to collect a reactionType: ApplicationFiled: June 9, 2023Publication date: December 14, 2023Inventors: Zhanjun Cheng, Hui Zhou, Pengpeng Luan, Beibei Yan, Guanyi Chen
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Publication number: 20230149873Abstract: A method for preparing supercritical fluid by deep-sea pressure is provided and belongs to the technical field of supercritical fluid preparation. The method includes the following steps of: placing low-pressure fluid in a closed flexible container, sending the closed flexible container down to a location of a sea at a depth where a seawater pressure meets a requirement by using a powered or unpowered traction device, leaving the flexible container standing still until a volume of the flexible container does not change, wrapping the closed flexible container with a rigid pressure-bearing container, transferring the closed flexible container to the sea surface by the powered or unpowered traction device, and taking out the fluid in the flexible container as supercritical fluid. Then the supercritical fluid is produced. Therefore, the process of preparing supercritical (high pressure) liquid in deep-sea is safer and more stable than the preparation way on land.Type: ApplicationFiled: December 14, 2021Publication date: May 18, 2023Inventors: Guanyi Chen, Junyu Tao, Yadong Ge, Beibei Yan, Yunan Sun, Zhanjun Cheng, Jian Li, Lan Mu, Yongjie Hu
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Patent number: 11642649Abstract: The disclosure discloses a method for preparing biochar from Enteromorpha prolifera and use of the biochar. The method includes: subjecting Enteromorpha prolifera to lyophilization, then impregnating lyophilized Enteromorpha prolifera with phosphoric acid, and drying to a constant weight; grinding a dried mixture in a mortar, and then subjecting a ground sample to activation treatment in a tube furnace at 400° C. to 1,000° C. under a nitrogen atmosphere; and boiling an obtained solid product with concentrated hydrochloric acid, then washing with ultrapure water, and drying to a constant weight to obtain Enteromorpha prolifera biochar. The biochar is used in adsorption of cadmium. The method for removing cadmium using Enteromorpha prolifera biochar provided by the disclosure exhibits an extremely high adsorption and removal capacity for cadmium, with an adsorption capacity of biochar up to 250 mg/g or more.Type: GrantFiled: September 18, 2020Date of Patent: May 9, 2023Assignees: Tianjin University, BCIG ENVIRONMENTAL REMEDIATION CO., LTD.Inventors: Guanyi Chen, Chuanbin Wang, Chengliang Yang, Xiangping Li, Beibei Yan, Bin Liu, Juping Liu, Zhenping Su, Ding Li, Xinpei Liu, Bo Li
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Publication number: 20230138374Abstract: A sorting-based garbage classification method and a sorting-based garbage classification device are provided. The method utilizes quantitative features of domestic garbage components and adopts bubble sort algorithm to build a sorting model to sort and classify domestic garbage. The method is more in line with technical requirements of downstream incineration, pyrolysis gasification and so on, and has the features of high fault tolerance rate and high operation efficiency, and is characterized by controllable environmental impact, flexible product form and high energy utilization efficiency in the operation process.Type: ApplicationFiled: December 8, 2021Publication date: May 4, 2023Inventors: Guanyi Chen, Junyu Tao, Rui Liang, Beibei Yan, Yunan Sun, Zhanjun Cheng, Jian Li, Lan Mu, Yude Gu, Xiaoling Hao
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Patent number: 11427775Abstract: Disclosed herein are integrated preparation and detection devices for studying biomass-burning aerosols, where the devices include a micro-fluidized bed reactor (MFBR), a transmission line, and an on-line detection unit that are connected in sequence. The MFBR may include a pyrolysis reactor and a pyrolysis furnace; the pyrolysis reactor may include a thermocouple, an introduction tube, and quartz sands; the on-line detection unit may be an on-line photoionization mass spectrometer; and the photoionization mass spectrometer may include a laser desorption system, a laser ionizer and a light energy ionizer. Devices of the present disclosure are beneficial to retain the original state of aerosol particles, and the fixed MFBR can realize rapid pyrolysis of a biomass due to its high and stable heat conduction efficiency, which is beneficial to studying the formation mechanism of aerosol particles.Type: GrantFiled: October 20, 2020Date of Patent: August 30, 2022Assignee: Tianjin UniversityInventors: Zhanjun Cheng, Congcong Cao, Guanyi Chen, Jinglan Wang, Jing Tian, Beibei Yan
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Publication number: 20220017825Abstract: A method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts, the method including: (1) mixing a first straw, seeding sludge and distilled water, and then carrying out anaerobic fermentation to obtain a mixed product after fermentation; (2) performing separation on the mixed product to obtain a second straw and biogas slurry; and (3) carbonizing the second straw to obtain biochar, and collecting gas after a pressurized catalytic reaction on the biogas slurry to obtain hydrogen.Type: ApplicationFiled: October 16, 2019Publication date: January 20, 2022Applicant: TIANJIN UNIVERSITYInventors: Guanyi CHEN, Xiang GUO, Yurou MAO, Beibei YAN, Yanbin ZHANG, Junyu TAO, Wanqing LI, Zhanjun CHENG, Wenchao MA
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Patent number: 11181266Abstract: Disclosed is a method for calculating combustion in the bed of a waste incinerator. The method is based on a model of combustion in a waste incinerator bed and comprises a water evaporation model, a volatile matter analysis model, a volatile matter combustion model, and a fixed carbon combustion model. The volatile matter of the volatile matter combustion model comprises CO, H2, CH4, NH3, and H2S. The volatile matter combustion model comprises a combustion reaction equation for said volatile matter and O2, and respective equations for CO and CH4 reacting with water vapor. Equations governing the model of combustion in the bed of a waste incinerator comprise a continuity equation, an energy equation, a momentum equation, and a component equation. Boundary conditions of said governing equations comprise: equations of heat transfer and mass transfer from an upper boundary layer of the bed to the exterior; and equations of heat transfer and mass transfer from lower boundary layer of the bed to the exterior.Type: GrantFiled: June 21, 2018Date of Patent: November 23, 2021Assignee: TIANJIN UNIVERSITYInventors: Guanyi Chen, Tianbao Gu, Wenchao Ma, Chen Ma, Li'an Hou, Beibei Yan, Bin Liu
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Publication number: 20210262658Abstract: Disclosed is a method for calculating combustion in the bed of a waste incinerator. The method is based on a model of combustion in a waste incinerator bed and comprises a water evaporation model, a volatile matter analysis model, a volatile matter combustion model, and a fixed carbon combustion model. The volatile matter of the volatile matter combustion model comprises CO, H2, CH4, NH3, and H2S. The volatile matter combustion model comprises a combustion reaction equation for said volatile matter and O2, and respective equations for CO and CH4 reacting with water vapor. Equations governing the model of combustion in the bed of a waste incinerator comprise a continuity equation, an energy equation, a momentum equation, and a component equation. Boundary conditions of said governing equations comprise: equations of heat transfer and mass transfer from an upper boundary layer of the bed to the exterior; and equations of heat transfer and mass transfer from lower boundary layer of the bed to the exterior.Type: ApplicationFiled: June 21, 2018Publication date: August 26, 2021Inventors: Guanyi Chen, Tianbao Gu, Wenchao Ma, Chen Ma, Li'an Hou, Beibei Yan, Bin Liu
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Patent number: 11001800Abstract: A microalgae culturing method by using a paper-based culture apparatus, includes: 1) designing the shape of a culture apparatus as a rectangle with circles distributed in its middle; 2) spraying and printing wax on a piece of filter paper; 3) heating such that the wax penetrates through the filter paper to obtain a paper culture apparatus, where a surface of the filter paper on which the wax is sprayed and printed is called a surface A while the other surface thereof is called a surface B; and 4) dropping a first agar aqueous solution onto the circles on the surface B of the paper culture apparatus obtained in the step 3), and dropping a second agar aqueous solution added with microalgae onto the surface A of the paper culture apparatus obtained in the step 3).Type: GrantFiled: October 10, 2019Date of Patent: May 11, 2021Assignee: TIANJIN UNIVERSITYInventors: Guanyi Chen, Daohong Zhang, Beibei Yan, Zhan Hu, Yun Qi
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Publication number: 20210115346Abstract: Disclosed herein are integrated preparation and detection devices for studying biomass-burning aerosols, where the devices include a micro-fluidized bed reactor (MFBR), a transmission line, and an on-line detection unit that are connected in sequence. The MFBR may include a pyrolysis reactor and a pyrolysis furnace; the pyrolysis reactor may include a thermocouple, an introduction tube, and quartz sands; the on-line detection unit may be an on-line photoionization mass spectrometer; and the photoionization mass spectrometer may include a laser desorption system, a laser ionizer and a light energy ionizer. Devices of the present disclosure are beneficial to retain the original state of aerosol particles, and the fixed MFBR can realize rapid pyrolysis of a biomass due to its high and stable heat conduction efficiency, which is beneficial to studying the formation mechanism of aerosol particles.Type: ApplicationFiled: October 20, 2020Publication date: April 22, 2021Applicant: Tianjin UniversityInventors: Zhanjun Cheng, Congcong Cao, Guanyi Chen, Jinglan Wang, Jing Tian, Beibei Yan
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Publication number: 20210086163Abstract: The disclosure discloses a method for preparing biochar from Enteromorpha prolifera and use of the biochar. The method includes: subjecting Enteromorpha prolifera to lyophilization, then impregnating lyophilized Enteromorpha prolifera with phosphoric acid, and drying to a constant weight; grinding a dried mixture in a mortar, and then subjecting a ground sample to activation treatment in a tube furnace at 400° C. to 1,000° C. under a nitrogen atmosphere; and boiling an obtained solid product with concentrated hydrochloric acid, then washing with ultrapure water, and drying to a constant weight to obtain Enteromorpha prolifera biochar. The biochar is used in adsorption of cadmium. The method for removing cadmium using Enteromorpha prolifera biochar provided by the disclosure exhibits an extremely high adsorption and removal capacity for cadmium, with an adsorption capacity of biochar up to 250 mg/g or more.Type: ApplicationFiled: September 18, 2020Publication date: March 25, 2021Inventors: Guanyi CHEN, Chuanbin WANG, Chengliang YANG, Xiangping LI, Beibei YAN, Bin LIU, Juping LIU, Zhenping SU, Ding LI, Xinpei LIU, Bo LI
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Publication number: 20200040299Abstract: A microalgae culturing method by using a paper-based culture apparatus, includes: 1) designing the shape of a culture apparatus as a rectangle with circles distributed in its middle; 2) spraying and printing wax on a piece of filter paper; 3) heating such that the wax penetrates through the filter paper to obtain a paper culture apparatus, where a surface of the filter paper on which the wax is sprayed and printed is called a surface A while the other surface thereof is called a surface B; and 4) dropping a first agar aqueous solution onto the circles on the surface B of the paper culture apparatus obtained in the step 3), and dropping a second agar aqueous solution added with microalgae onto the surface A of the paper culture apparatus obtained in the step 3).Type: ApplicationFiled: October 10, 2019Publication date: February 6, 2020Inventors: Guanyi CHEN, Daohong ZHANG, Beibei YAN, Zhan HU, Yun QI