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公开(公告)号：US20220259049A1
公开(公告)日：2022-08-18
申请号：US17739191
申请日：2022-05-09
Applicant: ZHEJIANG UNIVERSITY
Inventor： Shurong WANG , Yan DING , Lingjun ZHU , Kunzan QIU , Yunchao LI , Jingsong ZHOU
Abstract: A bio-oil light fraction-based bread-shaped porous activated carbon, a method for preparing the same and use thereof are provided. A light fraction prepared by fast pyrolysis of a biomass coupled with molecular distillation is selected as a precursor; an activator is directly mixed with the light fraction and stirred to obtain a homogeneous liquid; then, the homogeneous liquid is subjected to one-step carbonization and activation at a two-stage temperature in an inert atmosphere; after the activation, the obtained solid was washed and filtered, the activator reaction products and impurities are removed, and then dried to obtain the activated carbon used as an electrode carbon material of a supercapacitor. The method fully utilizes the rich micromolecule compounds such as water, acids, ketones, aldehydes, monophenols and the like in the obtained light fraction, and the micromolecule compounds and water can interact with the activator.
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公开(公告)号：US20220395818A1
公开(公告)日：2022-12-15
申请号：US17622262
申请日：2021-05-20
Applicant: ZHEJIANG UNIVERSITY
Inventor： Shurong WANG , Shanshan XIONG , Hao XU , Lingjun ZHU , Yunchao LI
Abstract: A carbon-based solid acid catalyst, a preparation method of the catalyst, and a method to use the catalyst for hydrothermal conversion of biomass are provided. The preparation method of the carbon-based solid acid catalyst includes the following steps: S1. mixing pectin with water, adding concentrated sulfuric acid for activation, and adding a resulting mixture to an ionic resin with an aromatic ring matrix; S2. drying a material obtained in S1, crushing a dried material into a powder, and subjecting the powder to pyrolysis in a dry inert gas; S3. subjecting a solid obtained after the pyrolysis to sulfonation with concentrated sulfuric acid; S4. diluting a material obtained in S3 with water, filtering a resulting mixture, and washing a resulting filter residue with water until no sulfate ions are detected in washing water; S5. drying the filter residue.
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公开(公告)号：US20230084526A1
公开(公告)日：2023-03-16
申请号：US17987894
申请日：2022-11-16
Applicant: Zhejiang University
Inventor： Shurong WANG , Hongcai SU , Tian LI , Lingjun ZHU , Yunchao LI
Abstract: A method for preparing hydrogen-rich synthesis gas by degrading waste polyolefin plastics at a low temperature includes the following steps: weighing 1 part by weight of polyolefin waste plastics and 3 parts-80 parts by weight of hydrogen peroxide containing 0.25%-6% of H2O2; feeding the polyolefin waste plastics and the hydrogen peroxide into a hydrothermal reactor, and carrying out the oxidation pretreatment reaction at a reaction temperature of 150° C.-230° C. under a reaction pressure of 0.5 MPa-2 MPa for 30 minutes-90 minutes, and obtaining an aqueous-phase product and a gas-phase product after the reaction is finished; filling another hydrothermal reactor with a mesoporous carbon supported metal-based catalyst, and then introducing the aqueous-phase product into the hydrothermal reactor for a reforming reaction to obtain a hydrogen-rich synthesis gas product. In the whole process, the H2 yield is close to 11 mol/kg plastics, and the H2 concentration in the hydrogen-rich synthesis gas is close to 55%.
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4.发明申请公开(公告)号：US20170191697A1
公开(公告)日：2017-07-06
申请号：US14898694
申请日：2014-12-12
Applicant: Zhejiang University
Inventor： 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
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.
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