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1.发明公开公开(公告)号：US20230311052A1
公开(公告)日：2023-10-05
申请号：US18191898
申请日：2023-03-29
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Lanlan Jiang , Mingjun Yang , Zucheng Cheng , Yu Liu , Yingying Liu , Bingbing Chen , Cong Chen , Jiafei Zhao , Yi Zhang
CPC classification number: B01D53/002 , C01B32/50 , C10L3/108 , C01B2210/0009 , C10L2290/06 , B01D2257/504 , B01D2256/245 , B01D2258/05
Abstract: A device for separating and sequestrating carbon dioxide coupled with cold storage in mixed gas via hydrate method, which belongs to the technical field of application of natural gas hydrates includes a gas compression device, a refrigeration cycle device, a hydrate formation/decomposition device, a hydrate cold storage device, a water circulation device and a sensing and monitoring device; taking the separation and sequestration of biogas as an example, the refrigeration cycle device enables the cooling of biogas, decomposition of gas at all levels, hydrate, and circulating water to provide the low-temperature conditions required for hydrate formation; the hydrate cold energy storage device can fully use the latent heat of hydrate phase change to provide the required cooling capacity on the user side; the water circulation device can realize the recycling of decomposition water to ensure the continuous formation of hydrate.
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公开(公告)号：US11694338B2
公开(公告)日：2023-07-04
申请号：US17415621
申请日：2020-07-23
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Yanghui Li , Peng Wu , Xiang Sun , Weiguo Liu , Jiafei Zhao , Mingjun Yang , Lei Yang , Zheng Ling
CPC classification number: G06T7/155 , G06T17/10 , G06V10/467 , G06T2207/10081 , G06T2207/20036
Abstract: The present invention belongs to the technical field of petroleum exploitation engineering, and discloses a 3D modeling method for cementing hydrate sediment based on a CT image. Indoor remolding rock cores or in situ site rock cores without hydrate can be scanned by CT; a sediment matrix image stack and a pore image stack are obtained by gray threshold segmentation; then, a series of cementing hydrate image stacks with different saturations are constructed through image morphological processing of the sediment matrix image stack such as dilation, erosion and image subtraction operation; and a series of digital rock core image stacks of the cementing hydrate sediment with different saturations are formed through image subtraction operation and splicing operation to provide a relatively real 3D model for the numerical simulation work of the basic physical properties of a reservoir of natural gas hydrate.
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公开(公告)号：US11215569B2
公开(公告)日：2022-01-04
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 , G01N3/12
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：US10766789B2
公开(公告)日：2020-09-08
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
IPC: C02F1/22 , C10L3/10 , C02F1/26 , C02F1/20 , C02F101/10 , C02F103/08
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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公开(公告)号：US11939238B2
公开(公告)日：2024-03-26
申请号：US18317098
申请日：2023-05-15
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Lunxiang Zhang , Yongchen Song , Xiaodong Wu , Jiazhu Bao , Chuanxiao Cheng , Zheng Ling , Jie Wang , Fan Wang , Yu Liu , Lei Yang , Mingjun Yang , Yanghui Li , Peng Wu
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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Patent Agency Ranking
公开(公告)号：US11926538B2
公开(公告)日：2024-03-12
申请号：US18315484
申请日：2023-05-10
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Lunxiang Zhang , Huilian Sun , Zheng Ling , Jiafei Zhao , Lingjie Sun , Lei Yang , Mingjun Yang , Yu Liu , Weiguo Liu , Yanghui Li , Xiang Sun , Lanlan Jiang
IPC: C02F1/04 , B01D1/30 , B01D5/00 , B01D9/00 , C02F101/20 , C02F103/16
CPC classification number: C02F1/048 , B01D1/30 , B01D5/0006 , B01D5/0051 , B01D5/006 , B01D9/0013 , B01D9/0031 , C02F2101/20 , C02F2103/16 , C02F2209/02 , C02F2209/03
Abstract: The present disclosure relates to the technical field of wastewater treatment, and provides a wastewater treatment method and apparatus based on hydrate-based water vapor adsorption. The apparatus includes a wastewater evaporation zone, a hydrate formation zone, a hydrate decomposition zone, and a data acquisition and control system. Rising water vapor and condensed water formed during evaporation of wastewater at normal temperature react with a hydrate former on a cooling wall surface to form a hydrate, continuous evaporation of the wastewater is promoted, the hydrate is scraped off to a collecting zone below by a scraper after being formed, and the hydrate is decomposed into fresh water, thereby realizing wastewater treatment. The present disclosure provides a method for treating complex wastewater containing a plurality of pollutants, where water vapor is consumed to form the hydrate to promote wastewater evaporation, and water obtained from the decomposition does not contain pollutants theoretically.
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公开(公告)号：US11819794B2
公开(公告)日：2023-11-21
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
CPC classification number: B01D47/02 , B01D53/005 , B01D53/62 , B01D53/75 , B01D53/78 , B01D53/96 , B01D2258/0283
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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8.发明授权公开(公告)号：US11796526B2
公开(公告)日：2023-10-24
申请号：US16968491
申请日：2019-08-31
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Jiafei Zhao , Man Li , Lei Yang , Weiguo Liu , Mingjun Yang , Yanghui Li , Zheng Ling , Yu Liu , Yi Zhang , Dayong Wang
CPC classification number: G01N33/225 , G01N1/42 , G01N21/01 , G01N21/65
Abstract: The invention discloses a gas hydrate pressure maintaining replacement device and method for in-situ Raman analysis. Comprehensive experiments such as the formation/decomposition/displacement of high-pressure gas hydrates can be realized, and in-situ Raman characterization can be performed. Including reaction kettle system with temperature control unit, pressure control gas supply system, pressure holding system, replacement gas system, sample pre-cooling system, vacuum system and data acquisition and processing system. The device can solve the problem that the Raman peak position of the 512 cage is covered by the Raman peak position of the gas when the high-pressure gas hydrate is characterized in situ in the reaction kettle, at the same time, it solves the problems of sampling difficulties in ex-situ Raman characterization and experimental errors caused by sample transfer.
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公开(公告)号：US11199502B2
公开(公告)日：2021-12-14
申请号：US16195134
申请日：2018-11-19
Applicant: Dalian University of Technology
Inventor： Yongchen Song , Jiafei Zhao , Zheyuan Liu , Weiguo Liu , Yu Liu , Huiyong Liang , Jiawei Chu , Mingjun Yang , Yanghui Li
Abstract: The present invention discloses a fully visual flow loop system for studying hydrate blockage. The fully visual flow loop system includes a first pipeline, a second pipeline, a third pipeline and a fourth pipeline connected successively in an end-to-end way; a single screw pump is connected between the first pipeline and the fourth pipeline from the four pipelines; the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all transparent to light; a plurality of CCD cameras are arranged between the first pipeline, the second pipeline, the third pipeline and the fourth pipeline; and, the fully visual flow loop system is arranged in a stepping low-temperature thermostatic chamber; a solution injection system can inject a solution into the fully visual flow loop system; a separation and collection system can separate and recover the solution; and a data acquisition system can integrate sensor information in all the other systems and give real-time feedback to ensure reasonable and coordinated operation of all systems. The fully visual flow loop system for studying hydrate blockage in the present invention can realize full visualization and real-time monitoring of the flow loop system.
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公开(公告)号：US12031088B2
公开(公告)日：2024-07-09
申请号：US18180878
申请日：2023-03-09
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Lanlan Jiang , Sijia Wang , Xin Wang , Mingjun Yang , Yu Liu
IPC: C09K8/594
CPC classification number: C09K8/594 , C09K2208/10
Abstract: A method for enhancing geological storage by injecting nanoparticles to stabilize CO2 microbubbles, which belongs to the technical field of multiphase flow. The method first improves the physical properties of the fluid by pre-mixing CO2 and nanoparticles, and then the fluid is transported to the underground through high-pressure pipelines, and then CO2 microbubbles containing nanoparticles are generated through a dense perforated plate arranged by an injection well to improve the dissolution rate and sweep efficiency of the gas in the saline aquifer, so as to enhance the later mixing of the fluid. The combined injection can improve CO2 storage capacity and storage safety, and further reduce the risk of gas leakage in the reservoir.
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