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公开(公告)号：US20230365431A1
公开(公告)日：2023-11-16
申请号：US18317098
申请日：2023-05-15
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Lunxiang ZHANG , Xiaodong WU , Jiazhu BAO , Xiaohang XIE , Yongchen SONG , Jiafei ZHAO , Ruize CUI , Zisong FAN , Yunhui WANG , Qinjian YU , Jie WANG
Abstract: The present disclosure provides an apparatus and a method for hydrate-based wastewater treatment and cold storage. The apparatus for hydrate-based wastewater treatment and cold storage includes a water chilling unit, a hydrate-based cold storage tank, an airflow disturbance device, a water layer positioning system, a spraying system, a suction filtration system, a heat exchange system, and a system monitoring device. The water chilling unit provides a secondary refrigerant at a low temperature. The secondary refrigerant flows through an evaporator coil in the hydrate-based cold storage tank for heat exchange. The airflow disturbance device induces hydrate nucleation. The water layer positioning system positions a contact surface between a water layer and a hydrate former after hydrate decomposition to facilitate drawing and separation of the treated upper water layer. The spraying system and the suction filtration system enhance the solid-liquid separation efficiency to improve the removal rate of pollutants.
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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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Patent Agency Ranking
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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15.发明公开公开(公告)号：US20230228245A1
公开(公告)日：2023-07-20
申请号：US17979227
申请日：2022-11-02
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Cong CHEN , Yongchen SONG , Xi WANG , Zherui CHEN , Jingyue SUN , Yu LIU , Yi ZHANG , Mingjun YANG , Jiafei ZHAO , Weiguo LIU , Yan QIN , Zheng LING , Lanlan JIANG , Lunxiang ZHANG
Abstract: The present invention discloses an electric heating thermal management system for an oil and gas transportation pipeline based on renewable energy and CO2 energy storage. It transmits the feedback data value through a data collection device arranged in the pipeline to the early warning device by the control device. After analysis and processing, the early warning device can feed back the data value to the control device and the remote operation device in two modes. Different degrees of heating amount can be generated for the oil and gas transportation pipelines at different positions in different modes. Hierarchical and distributed management control for the oil and gas transportation pipelines can be targetedly conducted in unblocked, easily blocked and blocked positions of the oil and gas transportation pipeline. The present invention couples the renewable energy electricity supply device and the CO2 energy storage device.
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公开(公告)号：US20220341833A1
公开(公告)日：2022-10-27
申请号：US17764476
申请日：2021-05-28
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen SONG , Jiafei ZHAO , Lunxiang ZHANG , Tian WANG , Lingjie SUN , Yi ZHANG , Xiang SUN , Lei YANG , Zheng LING , Yanghui LI , Weiguo LIU
Abstract: The present invention belongs to the field of gas solubility measurement, and provides a measuring device and method for gas solubility in a natural gas hydrate solution system. The measuring device mainly comprises a reaction system, a sampling system and a data analysis system. The present invention can be used for measuring gas solubility in a natural gas hydrate solution system at different temperature, pressure and salt ion conditions, and exploring influence of different environmental conditions on the gas solubility when hydrate-liquid water biphase equilibrium is achieved. The present invention in characterized in that the structure is simple, the operation is easy, sampling is carried out at a constant pressure to avoid damage to phase equilibrium and dissolution equilibrium of the systems, and a microfilter is used to ensure that a liquid sample taken does not contain hydrate crystals, so that experimental data has a relatively high accuracy.
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公开(公告)号：US20210260517A1
公开(公告)日：2021-08-26
申请号：US17056296
申请日：2020-02-28
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen SONG , Man LI , Jiafei ZHAO , Lei YANG , Zhongwang SUN , Lunxiang ZHANG , Weiguo LIU , Yanghui LI , Yu LIU , Mingjun YANG , Yi ZHANG , Dayong WANG , Zheng LING , Lanlan JIANG , Cong CHEN , Yuechao ZHAO
Abstract: The present invention discloses a gas hydrate-based particulate/waste gas simultaneous removal system and method. R134a can be used to synthesize particulates/coking waste gases into gas hydrate, which can realize the simultaneous removal of particulates/coking waste gases with no pollution and low energy consumption. The system comprises a waste heat recovery device, a gas hydrate primary dust removal tower, a solid-liquid separation primary tower, a gas hydrate secondary dust removal tower, a solid-liquid separation secondary tower, a gas hydrate decomposition pool, a gas-solid separation tower and a low temperature fractionation device. The present invention can achieve the removal of harmful substances such as heavy metals and coking waste gases while removing particulates. Compared with the current particulate control and waste gas treatment device, the gas hydrate method-based device is greatly simplified and can effectively remove multiple pollutants and realize energy saving and environmental protection.
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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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