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公开(公告)号：US20210003517A1
公开(公告)日：2021-01-07
申请号：US16968818
申请日：2019-11-18
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen SONG , Yanghui LI , Peng WU , Weiguo LIU , Jiafei ZHAO , Mingjun YANG , Yu LIU , Lei YANG
IPC: G01N23/046
Abstract: The present invention provides a CT triaxial test apparatus for hydrate-bearing sediment, and belongs to the technical field of fundamental physical property measurement of geotechnical engineering. In the apparatus, aiming at the defects of the invention “a visual test apparatus for mechanical characteristics of natural gas hydrate-bearing sediment”, the CT triaxial test apparatus for hydrate-bearing sediment is redesigned and optimized, on the premise of obtaining static and dynamic mechanical characteristics and creep characteristics of a hydrate reservoir, the stability of the triaxial apparatus during rotation due to scanning, the temperature control accuracy of a hydrate-bearing sample, and the X-ray penetration performance of the pressure chamber of the triaxial apparatus are improved, an optimal CT imaging effect is obtained, and powerful hardware support is provided to ascertain the reservoir deformation mechanism during hydrate decomposition.
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公开(公告)号：US20220395848A1
公开(公告)日：2022-12-15
申请号：US17628104
申请日：2021-06-30
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Jiafei ZHAO , Yongchen SONG , Mingzhao YANG , Hongsheng DONG , Lunxiang ZHANG , Quan SHI , Lei YANG , Zheng LING , Xiang SUN , Yanghui LI , Weiguo LIU
Abstract: The present invention discloses a hydrate energy-storage temperature-control material and a preparation method therefor. The material includes a refrigerant hydrate and a cross-linked polymer. The preparation method comprises the following steps: first, preparing a refrigerant hydrate by using a high-pressure reactor, and conducting grinding, crushing and sieving to obtain hydrate particles; then, uniformly spraying polytetrafluoroethylene suspended ultrafine powder onto the surface of the hydrate particles by using an electrostatic spraying device, and putting the hydrate particles into a plasma instrument to modify polytetrafluoroethylene so as to allow free radicals to be formed on the polytetrafluoroethylene powder surface; finally, subjecting monomers to graft polymerization with the free radicals on the polytetrafluoroethylene surface under the irradiation of a high-pressure mercury lamp of UV lighting system to stabilize the structure of the material, preparing a final product. According to the present invention, a hydrate energy-storage temperature-control material with good stability is prepared. A method capable of preparing various types of refrigerant hydrate materials is provided. The product can give full play to the advantages of hydrate energy storage and temperature control, can be periodically used, and can be used in various fields such as building, refrigeration, etc.
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公开(公告)号：US20210146301A1
公开(公告)日：2021-05-20
申请号：US16968817
申请日：2019-04-09
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen SONG , Jiafei ZHAO , Xianwei GUO , Lei YANG , Weiguo LIU , Mingjun YANG , Yanghui LI , Zheng LING , Yu LIU , Yi ZHANG , Dayong WANG , Lanlan JIANG , Yuechao ZHAO
Abstract: The invention provides a method and system for separating xenon-krypton mixed gas by hydrate formation process. The system is mainly composed of a gas hydrate generating unit, a heat exchanging unit and a gas-water separating unit: pre-cooled xenon-krypton mixed gas is injected from a bottom of a reaction tower, xenon gas in the mixed gas and water attached to a porous tray generate a xenon gas hydrate; and water is injected from a top of the tower to wet the porous tray, a generated hydrate particle is washed and collected to the bottom of the tower simultaneously to form a hydrate slurry, after passing through the heat exchanging unit, the xenon gas hydrate in the slurry is decomposed to form a gas phase flow and a water phase flow, and then enters the gas-water separating unit, and the xenon gas is separated from decomposed water.
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公开(公告)号：US20190039916A1
公开(公告)日：2019-02-07
申请号：US16075762
申请日：2016-12-17
Applicant: Dalian University of Technology
Inventor： Yongchen SONG , Jianan ZHENG , Mingjun YANG , Weiguo LIU , Jiafei ZHAO , Yi ZHANG
CPC classification number: C02F1/22 , C02F1/20 , C02F1/265 , C02F2101/10 , C02F2103/08 , C02F2201/005 , C02F2209/04 , C02F2301/06 , C02F2301/10 , C10L3/104 , C10L3/108
Abstract: A system for flue-gas hydrate-based desalination using LNG cold energy belongs to the field of hydrate technology application. The CO2 in the flue-gas is captured based on the hydrate formation. Two stage formation chambers are set to improve the hydrate formation. The two steps to purify the hydrates respectively are the gas separation and the liquid separation. The two methods of hydrate dissociation to realize the recycling of the waste heat of flue-gas and the CO2 are the heat-exchanged and the exhausted. The present invention realizes the integrated CO2 capture and seawater desalination with a proper structure and a subtle system and solves the cold energy source for hydrate-based desalination by means of using LNG cold energy. The two stage formation chambers solve the capture of CO2 in the flue-gas and guarantee the hydrate formation amounts. The two types of dissociation chambers decrease the heat emission by using the waste heat of flue-gas and realize the recycling and storage of CO2. The system will not be affected by the changes of seasons and environments and has a strong carrying capacity for the flue-gas source change. It is a system with great application value realistic.
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