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Membranes
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Separation of Greenhouse Gases Using Hollow Fiber Membrane Contactor
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Separation of Greenhouse Gases Using Hollow Fiber Membrane Contactor

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Processing and Engineering".

Deadline for manuscript submissions: closed (20 November 2023) | Viewed by 4997

Special Issue Editors

Dr. Ali Taghvaie Nakhjiri

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Guest Editor
Department of Petroleum and Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
Interests: membrane processes; gas separation; liquid absorbents; membrane contactor
Dr. Mahdi Ghadiri

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Guest Editor
Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
Interests: simulation of membrane processes; membrane contactor; solvent extraction
Dr. Pezhman Kazemi

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Guest Editor
Department of Chemical Engineering & Analytical Science, University of Manchester, Manchester, UK
Interests: data-deriven process modeling; membrane distillation; fault detection; industry 4; digitaliztion

Special Issue Information

Dear Colleagues, 

Anthropogenic emission of various greenhouse gases such as CO2 and H2S is a global challenge, and has motivated scientists to find promising ways to mitigate them in the ecosystem. In recent decades, hollow-fiber membrane contactors (HFMCs) have shown their indisputable potential for application in the separation of disparate types of gases, which carries the advantages of both membrane separation and chemical absorption processes. 

The prominent objective of this Special Issue is to provide an opportunity for researchers in this field of to share their high-quality research and review papers on all aspects related to membrane-based gas separation. Topics of interest include, but are not limited to, the following: 

  • Hollow-fiber membrane contactor for greenhouse gases separation;
  • Application of novel liquid absorbents to improve the efficiency of separation;
  • Development of novel approaches to increasing the sustainability of membrane-based gas separation;
  • Modeling and simulation of membrane processes for gas separation;
  • Application of novel membrane materials;
  • Polymeric membranes for gas separation;
  • Membranes towards sustainability. 

We look forward to receiving your contributions.

Dr. Ali Taghvaie Nakhjiri
Dr. Mahdi Ghadiri
Dr. Pezhman Kazemi
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. Membranes 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 2700 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

  • greenhouse gases
  • modeling and simulation
  • novel absorbents
  • gas separation
  • hollow-fiber membrane contactor

Published Papers (3 papers)

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Research

17 pages, 8985 KiB  
Article
An Energy–Economic–Environment Tri-Objective Evaluation Method for Gas Membrane Separation Processes of H2/CO2
by Junjiang Bao, Shuai Li, Xiaopeng Zhang and Ning Zhang
Membranes 2024, 14(1), 3; https://doi.org/10.3390/membranes14010003 - 21 Dec 2023
Viewed by 1491
Abstract
For pre-combustion carbon capture, the high syngas pressure provides a sufficient mass transfer driving force to make the gas membrane separation process an attractive option. Comparisons of combined different membrane materials (H2-selective and CO2-selective membranes) and membrane process layouts [...] Read more.
For pre-combustion carbon capture, the high syngas pressure provides a sufficient mass transfer driving force to make the gas membrane separation process an attractive option. Comparisons of combined different membrane materials (H2-selective and CO2-selective membranes) and membrane process layouts are very limited. Especially, the multi-objective optimization of such processes requires further investigation. Therefore, this paper proposes 16 two-stage combined membranes system for pre-combustion CO2 capture, including 4 two-stage H2-selective membrane systems, 4 two-stage CO2-selective membrane systems, and 8 two-stage hybrid membrane systems. A tri-objective optimization method of energy, economy, and environment is proposed for comprehensive evaluation of the proposed systems. Results show that with the targets of 90% CO2 purity and recovery, six gas membrane separation systems could be satisfied. After further multi-objective optimization and comparison, the C1H2-4 system (the hybrid system with H2-selective membranes and CO2-selective membranes) has the best performance. Feed composition and separation requirements also have an important influence on the multi-objective optimization results. The effects of selectivity and permeance of H2-selective and CO2-selective membranes on the performance of the C1H2-4 system are also significant. Full article
(This article belongs to the Special Issue Separation of Greenhouse Gases Using Hollow Fiber Membrane Contactor)
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9 pages, 5479 KiB  
Article
The Effect of a Flexible Electrode on the Electro Deformability of an Actuating Unit of a MDI-Polyurethane Composite Fiber Membrane Filled with BaTiO3
by Gang Lu, Changgeng Shuai, Yinsong Liu, Xue Yang and Xiaoyang Hu
Membranes 2022, 12(9), 878; https://doi.org/10.3390/membranes12090878 - 12 Sep 2022
Viewed by 1333
Abstract
The electro deformability of an actuating unit of a polyurethane dielectric elastomer (PUDE) is affected by many factors. The agglomeration of dielectric fillers faced by the traditional dielectric modification methods will lead to the instability of the actuation performance of dielectric composites. In [...] Read more.
The electro deformability of an actuating unit of a polyurethane dielectric elastomer (PUDE) is affected by many factors. The agglomeration of dielectric fillers faced by the traditional dielectric modification methods will lead to the instability of the actuation performance of dielectric composites. In addition, the electro deformability (ability of deformation after voltage loading) is great affected by the selection of flexible electrodes and packaging technology. Based on the research findings, Diphenylmethane-4,4′-diisocyanat (MDI)-polyurethane dielectric composite fiber membrane filled with barium titanate (BaTiO3) is prepared using coaxial spinning, and this study then analyzes the effects of the types of flexible electrodes and coating methods on the electro deformability of the actuating unit of the dielectric composite fiber membrane. It is found that the electro deformability of the actuating unit coated with the single-walled carbon nanotube (SWNT) flexible electrode is better than that of the perfluoropolyether conductive grease (PCG) or the traditional conductive carbon grease (CCG) electrode in various degrees. When the loading voltage is 20 kV, the electro deformability of the actuating unit coated with SWNT flexible electrode exceeds the latter two electrodes by 13.8%; when the SWNT flexible electrode is encapsulated by physical surface implantation (PSI), the electric deformation of the actuating unit is higher than that of the solvent suspension dispersion (SSD). Full article
(This article belongs to the Special Issue Separation of Greenhouse Gases Using Hollow Fiber Membrane Contactor)
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13 pages, 1848 KiB  
Article
Experimental Investigations on the Performance of a Hollow Fiber Membrane Evaporative Cooler (HFMEC) in Hot–Dry Regions
by Nanfeng Li, Tao Zhong, Lu Zhou, Simin Huang, Si Zeng and Caihang Liang
Membranes 2022, 12(8), 793; https://doi.org/10.3390/membranes12080793 - 18 Aug 2022
Cited by 9 | Viewed by 1605
Abstract
The applicability of a hollow fiber membrane evaporative cooler in hot–dry regions was investigated by experimental studies. To better understand the actual operating environment of the hollow fiber membrane evaporative cooler, the outdoor air design conditions for summer air conditioning in five cities [...] Read more.
The applicability of a hollow fiber membrane evaporative cooler in hot–dry regions was investigated by experimental studies. To better understand the actual operating environment of the hollow fiber membrane evaporative cooler, the outdoor air design conditions for summer air conditioning in five cities were simulated by an enthalpy difference laboratory. Subsequently, the effects of water and air flow rates on outlet air parameters and performance parameters were investigated by setting-up a hollow fiber membrane evaporative cooling experimental rig. It was found that the hollow fiber membrane evaporative cooler has good application prospects in hot–dry regions such as Lanzhou, Xi’an, Yinchuan, Urumqi, and Karamay. Among them, the hollow fiber membrane evaporative cooler has higher applicability in regions with higher air temperatures and lower humidity such as Urumqi and Karamay. The results indicate that the air outlet temperature and relative humidity ranged from 26.5 °C to 30.8 °C and 63.5% to 82.8%, respectively. The outlet air temperature and relative humidity of the HFMEC can meet the thermal comfort requirements of hot–dry regions in the summer at an appropriate air flow rate. The maximum air temperature drop, wet-bulb efficiency, cooling capacity, and COP were 7.5 °C, 62.9%, 396.4 W, and 4.81, respectively. In addition, the effect of the air flow rate on the performance parameters was more significant than that of the water flow rate. Full article
(This article belongs to the Special Issue Separation of Greenhouse Gases Using Hollow Fiber Membrane Contactor)
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