公开(公告)号：US11980844B2

公开(公告)日：2024-05-14

申请号：US17566659

申请日：2021-12-30

Applicant: ZHEJIANG UNIVERSITY

Inventor： Xiang Gao ,  Chenghang Zheng ,  Chang Liu ,  Can Zhou ,  You Zhang ,  Zhongyang Zhao ,  Yongxin Zhang ,  Yang Zhang ,  Qinwu Li ,  Weiguo Weng ,  Weihong Wu ,  Qingyi Li ,  Xiao Zhang ,  Tao Wang

IPC: B01D53/14 ,  B01D53/18 ,  B01D53/78 ,  C01B17/80

CPC classification number: B01D53/1406 ,  B01D53/1412 ,  B01D53/145 ,  B01D53/1475 ,  B01D53/1493 ,  B01D53/185 ,  B01D53/78 ,  B01D2252/103 ,  B01D2257/504 ,  B01D2258/0283 ,  C01B17/806

Abstract: The present invention relates to a method for carbon dioxide capture and concentration by partitioned multistage circulation based on mass transfer-reaction regulation. In the present invention, multiple means such as multistage circulating absorption, intelligent multi-factor regulation, pre-washing and cooling, inter-stage cooling, post-stage washing, slurry cleaning, cooling water waste heat utilization, small-particle-size and high-density spraying, external strengthening field such as a thermal field/ultrasonic field/electric field, and catalysis by composite catalyst are adopted, so that the target for low cost, low energy consumption, stability and high efficiency is realized. The secondary pollutants are effectively inhibited while carbon dioxide is efficiently captured; meanwhile, high-efficiency capture, low-energy desorption, and high-purity concentration of carbon dioxide are implemented. From top to bottom in sequence, the multistage circulation is used to remove aerosols, improves carbon capture efficiency, maintains absorption rate, concentrates solution, which reduces the carbon emission reduction cost.

公开(公告)号：US20170298818A1

公开(公告)日：2017-10-19

申请号：US15489060

申请日：2017-04-17

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

IPC: F02C3/30 ,  F03G6/06 ,  F02C3/04 ,  F02C6/10 ,  F23R3/00 ,  F04D19/02 ,  F03G6/00 ,  F04D29/58

Abstract: A solar chemically recuperated gas turbine system includes an exhaust-gas reformer, a solar reformer and a gas turbine unit with a combustion chamber. The reaction outlet of the exhaust-gas reformer is connected to the inlet of the solar reformer, the flue gas side inlet of the exhaust-gas reformer is connected to the exhaust-gas outlet of the gas turbine. The solar reformer outlet is connected to the combustion chamber inlet. Combustion gas drives the gas turbine after fuel burns in the combustion chamber, and the exhaust gas enters the exhaust-gas reformer. Fuel and steam are mixed and enter the reaction side of the exhaust-gas reformer through a fuel inlet. A reforming reaction between the fuel and steam under heating of the exhaust gas generates syngas. A further reforming reaction occurs by absorbing concentrated solar energy after the syngas enters the solar reformer, and the reactant is provided to combustion chamber.

公开(公告)号：US12043686B2

公开(公告)日：2024-07-23

申请号：US17055994

申请日：2019-05-10

Applicant: ZHEJIANG UNIVERSITY

Inventor： Jinwei Fang ,  Yingwu Luo ,  Xiang Gao

IPC: C08L53/00 ,  C08F2/00 ,  C08F293/00

CPC classification number: C08F293/005 ,  C08F2438/03

Abstract: Disclosed are a high melt index thermoplastic elastomer and a preparation method therefor. In the present invention, an emulsion polymerization system and a reversible addition chain transfer free radical polymerization technique are used, and a thermoplastic elastomer having a block structure with a high melt index is obtained by means of controlling reaction temperatures of different stages. The present invention is simple in terms of workflow and equipment and energy-saving and environmentally friendly in terms of process, and the raw materials thereof are cheap and easy to obtain, and the resulting high melt index thermoplastic elastomer has an excellent hot workability.

公开(公告)号：US11936390B2

公开(公告)日：2024-03-19

申请号：US17973518

申请日：2022-10-25

Applicant: ZHEJIANG UNIVERSITY

Inventor： Xiang Gao ,  Gaofeng Jin ,  Fei Feng

IPC: H03L7/091 ,  H03L7/099 ,  H03L7/10

CPC classification number: H03L7/091 ,  H03L7/0995 ,  H03L7/103

Abstract: Disclosed is a low-power fractional-N phase-locked loop circuit, which comprises a phase detector, a voltage-to-current converter, a loop filter, a voltage-controlled oscillator, a frequency divider and a digital logic processor; the phase detector, the voltage-to-current converter, the loop filter, the voltage-controlled oscillator and the frequency divider are connected in sequence; a reference signal is input from the phase detector, the phase detector detects the phases of the reference signal and a feedback signal with a quantization error output by the frequency divider, compensates a quantization phase error generated by fractional frequency division, and outputs a compensated phase detection result to the voltage-to-current converter; the quantization error generated by fractional frequency division is converted into a voltage domain through a digital domain or directly coupled to a phase error signal in the phase detector to complete the compensation of the quantization error.

公开(公告)号：US10821397B2

公开(公告)日：2020-11-03

申请号：US16089154

申请日：2017-11-27

Applicant: ZHEJIANG UNIVERSITY

Inventor： Tao Wang ,  Mengxiang Fang ,  Wenfeng Dong ,  Qinhui Wang ,  Jianmeng Cen ,  Leming Cheng ,  Gang Xiao ,  Chenghang Zheng ,  Jinsong Zhou ,  Shurong Wang ,  Xiang Gao ,  Zhongyang Luo ,  Mingjiang Ni ,  Kefa Cen

IPC: B01D53/18 ,  B01D53/14 ,  F23J15/06 ,  F23J15/04

Abstract: The present invention is related a square packed tower for collection of flue gas CO2. The square packed tower comprises an initial absorbent distributor on the lower end of the flue gas outlet, a vertical plate packer on the lower end of the initial absorbent distributor and a radial diversion gas distributor at the bottom of the square packed tower for delivery of carbon dioxide contained in the flue gas. The radial diversion gas distributor comprises a gas inlet pipe, a butterfly base plate, a butterfly seal plate and numerous radial deflectors. The butterfly base plate is connected with outlet of the gas inlet pipe. The radial deflectors are in radial arrangement between the butterfly base plate and butterfly seal plate along the outlet of gas inlet pipe.

公开(公告)号：US10578341B2

公开(公告)日：2020-03-03

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

IPC: F24S10/00 ,  F28D20/00 ,  F24S80/20 ,  F24S20/20 ,  F24V30/00

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.

公开(公告)号：US09802180B2

公开(公告)日：2017-10-31

申请号：US15104045

申请日：2013-12-11

Applicant: ZHEJIANG UNIVERSITY

Inventor： Xiang Gao ,  Kunzan Qiu ,  Chenghang Zheng ,  Hao Song ,  Weihong Wu ,  Xinbo Zhu ,  Hongmin Yu ,  Dian Xu ,  Zhongyang Luo ,  Kefa Cen ,  Mingjiang Ni

IPC: B01J23/888 ,  B01J23/30 ,  B01D53/86 ,  B01J23/00 ,  B01J37/02 ,  B01J37/04

CPC classification number: B01J23/888 ,  B01D53/8628 ,  B01D53/8665 ,  B01D2255/207 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/20784 ,  B01D2257/602 ,  B01D2258/0283 ,  B01J21/063 ,  B01J23/002 ,  B01J23/30 ,  B01J35/023 ,  B01J37/0203 ,  B01J37/0213 ,  B01J37/04 ,  B01J37/088 ,  B01J37/343 ,  B01J2523/00 ,  B01J2523/47 ,  B01J2523/55 ,  B01J2523/56 ,  B01J2523/67 ,  B01J2523/69 ,  B01J2523/842 ,  B01J2523/17 ,  B01J2523/68

Abstract: Disclosed are a catalyst for synergistic control of oxynitride and mercury and a method for preparing the same. The catalyst includes the following components by mass percentage: a carrier: TiO2 72%-98.6%, active components: V2O5 0.1%-5%, WO3 1%-10%, Cr2O3 0.1%-5% and Nb2O5 0.1%-5%, and a co-catalyst of 0.1%-3%. The present invention can be used for reducing the oxynitrides in a flue gas, meanwhile oxidizing zero-valent mercury into bivalent mercury and then controlling the reactions, has relatively high denitration performance and also has high mercury oxidation performance; compared with current commercial SCR catalysts, the mercury oxidation rate of the catalyst is improved to a great extent, which can adapt to the requirements for mercury removal in China's coal-fired power plants, the conversion rate of SO2/SO3 is relatively low, and the catalyst has a better anti-poisoning ability, and is a new catalyst with a low cost and high performance.

公开(公告)号：US09328234B2

公开(公告)日：2016-05-03

申请号：US14203379

申请日：2014-03-10

Applicant: ZHEJIANG UNIVERSITY

Inventor： Yingwu Luo ,  Renzhong Wei ,  Xiang Gao

IPC: C08L83/00 ,  C08L47/00 ,  C08F2/38 ,  C09D153/00 ,  C09J153/00 ,  C08F2/22 ,  C08F293/00

CPC classification number: C08L47/00 ,  C08F2/22 ,  C08F2/38 ,  C08F293/005 ,  C08F2438/03 ,  C09D153/00 ,  C09J153/00

Abstract: The present invention discloses a poly((meth)acrylic acid-b-styrene-b-butadiene-b-styrene) block copolymer latex and a method for preparing the same. The poly((meth)acrylic acid-b-styrene-b-butadiene-b-styrene) block copolymer latex is directly and stably obtained by emulsion polymerization in the presence of an amphiphilic macromolecule reversible addition fragmentation chain transfer agent as both chain transfer agent and reactive emulsifier. The present invention has simple operation, and the process is environmentally friendly and energy-saving, the product poly ((meth) acrylic acid-b-styrene-b-butadiene-b-styrene) block copolymer latex has a good prospect in many fields, such as bitumen modification, adhesives, polymer toughening and the like.

Abstract translation: 本发明公开了一种聚（（甲基）丙烯酸-b-苯乙烯-b-丁二烯-b-苯乙烯）嵌段共聚物胶乳及其制备方法。 聚（（甲基）丙烯酸-b-苯乙烯-b-丁二烯-b-苯乙烯）嵌段共聚物胶乳通过乳液聚合在两亲性大分子可逆加成断裂链转移剂作为链转移剂的存在下直接稳定地得到 和反应性乳化剂。 本发明操作简单，工艺环保节能，产品聚（（甲基）丙烯酸-b-苯乙烯-b-丁二烯-b-苯乙烯）嵌段共聚物胶乳在许多领域具有良好的前景 ，例如沥青改性，粘合剂，聚合物增韧等。

公开(公告)号：US20150126667A1

公开(公告)日：2015-05-07

申请号：US14594104

申请日：2015-01-10

Applicant: ZHEJIANG UNIVERSITY

Inventor： SHAOHONG XU ,  Xiang Gao ,  Yingwu Luo

IPC: C08F293/00

CPC classification number: C08F293/00 ,  C08F2/10 ,  C08F2/24

Abstract: The present invention discloses a block copolymer comprising a block with glass transition temperature higher than 100° C. and a method for preparing the same. In the method, latex of a block copolymer is prepared by taking n-butyl acrylate as a soft block, random copolymer of styrene and γ-methyl-α-methylene-γ-butyrolactone as a hard block, utilizing emulsion polymerization system and reversible addition fragmentation chain transfer radical polymerization technology. The method utilizes an amphiphilic macromolecule reversible addition fragmentation chain transfer agent has dual function of both chain transfer agent and emulsifier, thus can achieve good control of monomer polymerization and avoid the use of traditional emulsifier; the reaction has no polymerization inhibition period, has fast reaction rate and high final conversion; colloidal particles can stably grow; product has a hard block with glass transition temperature up to 155° C., and thus has a good application prospect in the field of high heat resistance thermoplastic elastomer.

Abstract translation: 本发明公开了包含玻璃化转变温度高于100℃的嵌段的嵌段共聚物及其制备方法。 在该方法中，通过以丙烯酸正丁酯作为软嵌段，使用苯乙烯和γ-甲基-α-亚甲基-γ-丁内酯的无规共聚物作为硬嵌段，利用乳液聚合体系和可逆加成来制备嵌段共聚物的胶乳 断裂链转移自由基聚合技术。 该方法利用两亲性高分子可逆加成断裂链转移剂具有链转移剂和乳化剂的双重功能，可以实现单体聚合的良好控制，避免使用传统乳化剂; 反应没有聚合抑制期，反应速度快，最终转化率高; 胶体粒子能稳定生长; 产品具有玻璃化转变温度高达155℃的硬块，因此在高耐热性热塑性弹性体领域具有良好的应用前景。