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Advances in Natural Gas Hydrate Exploitation, Hydrate Technology, Carbon Capture...
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Advances in Natural Gas Hydrate Exploitation, Hydrate Technology, Carbon Capture and Storage

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Chemical Processes and Systems".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 3295

Special Issue Editors

Dr. Kun Ge

E-Mail Website
Guest Editor
College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Interests: hydrogen storage; PEMFC; CO2 capture; gas hydrate
Dr. Jiaqi Wang

E-Mail Website
Guest Editor
College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Interests: gas hydrate; carbon capture and storage; anti-icing and deicing
Dr. Lunxiang Zhang

E-Mail Website
Guest Editor
School of Energy and Power Engineering, Dalian University of Technology, Dalian, China
Interests: flow assurance; hydrate-based technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Hydrate-related technologies covering the topics of natural gas hydrate exploitation, hydrate technology, carbon capture, and storage have been widely researched over the last decade. However, there are still many limitations regarding hydrate-related technologies, which have a long way to go before they can be employed in mature industrial contexts. While significant progress has been achieved, there remains much to be accomplished in order to unravel the underlying mechanisms, enhance the efficiency of natural gas hydrate exploitation, and to develop and optimize the process flow for the continuous, periodic preparation and separation of hydrates for the industrialization of hydrate utilization technology.

This Special Issue, entitled “Advances in Natural Gas Hydrate Exploitation, Hydrate Technology, Carbon Capture and Storage”, seeks contributions including basic and applied research, experimental studies, and simulation studies for hydrate-related technologies in the fields of natural gas hydrate exploitation, gas separation, solution concentration, cold storage, desalination, carbon capture, and storage, etc. Papers related to hydrate reaction devices and processes in hydrate-based utilization technologies will also be included. We welcome researchers to submit both original research articles and review papers to this Special Issue. Topics include, but are not limited to, the following:

  1. Formation, dissociation, and exploitation of natural gas hydrate;
  2. Hydrate-based utilization technology in separation processes and gas storage;
  3. Hydrate-based desalination technology;
  4. Hydrate-based utilization technology in cold storage with various media and a new hydrate cold storage system;
  5. The development of high-efficiency hydrate reaction equipment and continuous hydrate processes;
  6. Hydrate-based carbon capture and storage technology;
  7. Other cutting-edge applications.

Dr. Kun Ge
Dr. Jiaqi Wang
Dr. Lunxiang Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • hydrate
  • gas separation
  • gas storage
  • cold storage
  • desalination
  • CCUS
  • continuous hydrate formation

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (3 papers)

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Research

13 pages, 13363 KiB  
Article
Research on CO2 Desorption Using Microwave-Assisted Novel Blended Alkanolamine Formulations
by Rezeye Rehemituli, Ziheng Zhang, Xuemei Yang, Fan Yang, Yansheng Liu and Junwei Hou
Processes 2024, 12(11), 2547; https://doi.org/10.3390/pr12112547 - 14 Nov 2024
Viewed by 577
Abstract
Traditional alkanolamine absorption methods for CO2 capture suffer from significant absorbent loss and high regeneration energy consumption. To address this issue, novel blended alkanolamine formulations based on monoethanolamine (MEA), methyldiethanolamine (MDEA) and 2–amino–2–methyl–1–propanol (AMP) were investigated. Based on the optimization of CO [...] Read more.
Traditional alkanolamine absorption methods for CO2 capture suffer from significant absorbent loss and high regeneration energy consumption. To address this issue, novel blended alkanolamine formulations based on monoethanolamine (MEA), methyldiethanolamine (MDEA) and 2–amino–2–methyl–1–propanol (AMP) were investigated. Based on the optimization of CO2 absorption conditions, a low–temperature and high–efficiency microwave heating desorption method for CO2 was proposed, and the microwave heating desorption process of a CO2 alkanolamine absorption solution was optimized. The results show that when the mass ratio of monoethanolamine (MEA), methyldiethanolamine (MDEA) and 2–amino–2-methyl–1–propanol (AMP) was 4:5:1, the composite alkanolamine solution with a concentration of 20% had the best absorption effect at an absorption temperature of 30 °C. The desorption efficiency of this group of formulations at 95 °C reached 89% in 4 min. Compared with the traditional heating desorption method, the CO2 desorption rate of the microwave heating method at 95 °C increased by 62%, the desorption time was significantly shortened, and the energy consumption was significantly reduced. This study provides a new research direction for the efficient and low-energy desorption of CO2 by blended alkanolamine. Full article
(This article belongs to the Special Issue Advances in Natural Gas Hydrate Exploitation, Hydrate Technology, Carbon Capture and Storage)
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13 pages, 2455 KiB  
Article
One-Dimensional Numerical Simulation on Removal of CO2 Hydrate Blockage around Wellbore by N2 Injection
by Tao Liao, Liang Yuan, Wei Li, Jingyu Kan, Wei Luo, Xiaoqin Xiong and Nan Li
Processes 2024, 12(1), 204; https://doi.org/10.3390/pr12010204 - 17 Jan 2024
Viewed by 1136
Abstract
CO2 sequestration in sediments as solid hydrate is considered a potential way to capture and store anthropogenic CO2. When CO2 hydrate is formed in front of CO2 migration, the injection channel will be blocked, and the removal of [...] Read more.
CO2 sequestration in sediments as solid hydrate is considered a potential way to capture and store anthropogenic CO2. When CO2 hydrate is formed in front of CO2 migration, the injection channel will be blocked, and the removal of hydrate blockage becomes the first problem that must be faced. This work proposed an N2 injection method to remove CO2 hydrate blockage. Based on numerical simulation, a study was conducted using TOUGH+MIXHYD v.1.0 to confirm the feasibility of N2 injection and compare it to depressurization. The spatial and temporal distribution characteristics of pressure, temperature, hydrate saturation, and gas saturation were investigated. Under the combined effects of temperature, pressure, and gas composition, secondary CO2-N2 hydrate can form far from the injection point, causing an increase in local temperature and hydrate saturation. The rate of CO2 hydrate dissociation using direct depressurization is significantly slower compared to N2 injection methods. As the pressure of N2 injection increases, the rate of CO2 hydrate dissociation notably accelerates, which does not show a significant increase with increasing injection temperature. This work introduced a novel approach to addressing the issue of CO2 hydrate blockage, which holds prominent significance for the advancement of hydrate-based CO2 geological sequestration. Full article
(This article belongs to the Special Issue Advances in Natural Gas Hydrate Exploitation, Hydrate Technology, Carbon Capture and Storage)
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17 pages, 6582 KiB  
Article
Rapid Prediction of the In Situ Pyrolysis Performance of Tar-Rich Coal Using the POD Method
by Zhendong Wang, Qianhao Ye, Mingjie Li, Xiangqiang Cheng, Jinjia Wei, Fu Yang and Zhonghui Duan
Processes 2023, 11(10), 2994; https://doi.org/10.3390/pr11102994 - 17 Oct 2023
Cited by 2 | Viewed by 1037
Abstract
In this paper, a POD reduced-order interpolation model for solving the in situ pyrolysis process of tar-rich coal is employed to predict the flow and heat transfer performance in the porous media region so as to save computational resources and realize fast calculations. [...] Read more.
In this paper, a POD reduced-order interpolation model for solving the in situ pyrolysis process of tar-rich coal is employed to predict the flow and heat transfer performance in the porous media region so as to save computational resources and realize fast calculations. Numerical simulation using the finite volume method (FVM) is firstly used to obtain sample data, based on the samples through the primary function and spectral coefficients of the solutions. The physical field information and parameter distribution under different conditions of inlet temperature, inlet velocity and permeability are predicted. The results are compared with those of FVM to verify the accuracy of the calculated results. The relative mean deviation (RME) of the results of the POD prediction of each parameter for each working condition was synthesized to be no more than 5%. The performance of in situ pyrolysis of tar-rich coal is then investigated, and the oil and gas production are predicted. As the inlet velocity increases from 0.3 m/s to 0.9 m/s, the fraction of high-quality oil and gas production reaches 0.47 and then decreases to 0.38. Increasing the inlet temperature and permeability has a negative effect on the fraction of high-quality hydrocarbon production, after which the quality fraction of high-quality oil and gas dropped sharply to about 0.22. Porosity has a positive impact on the oil and gas production. When the porosity reaches 0.3, the quality fraction of high-quality oil and gas can reach 0.27. Full article
(This article belongs to the Special Issue Advances in Natural Gas Hydrate Exploitation, Hydrate Technology, Carbon Capture and Storage)
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