Article
Engineering, Chemical
Takehiro Yamaki, Motomu Sakai, Masahiko Matsukata, Naoyuki Sakamoto, Nobuo Toratani, Sho Kataoka
Summary: Two hybrid separation processes combining membrane separation and distillation were designed for separating propane/propylene mixtures, and the separation performance was evaluated using indicators such as energy consumption and membrane area. The advantages of these hybrid separation processes were discussed.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Kew -Ho Lee, Choongkyun Yeom, Jiwon Kim
Summary: A hybrid system of membrane distillation and selective condensation was developed to enhance the separation efficiency of volatile organic components (VOC) from aqueous solution. The experiment showed that organic substances with large differences in boiling point and weak interaction with water, such as methylene chloride and acetone, can be easily removed and recovered using this hybrid system.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Energy & Fuels
Yuting Xu, Ya Tang, Chang He, Yidan Shu, Qing L. Chen, Bing J. Zhang
Summary: This study introduces and optimizes a new internal coupling process for ethylene/ethane separation, which can achieve significant economic savings and has good application potential under various feed conditions. The internal coupling process effectively decreases the heat duties of condenser and reboiler, compared to the conventional cryogenic distillation method.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Environmental Sciences
Nandakishora Yerumbu, Ranjit Kumar Sahoo, Murugan Sivalingam
Summary: This study focuses on optimizing membranes for the membrane-cryogenic distillation process, resulting in higher concentration and recovery of CO2. Compared to other processes, this method achieves maximum purity and recovery with a minimum energy penalty.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Biochemistry & Molecular Biology
Seong-Joong Kim, YongSung Kwon, DaeHun Kim, Hosik Park, Young Hoon Cho, Seung-Eun Nam, You-In Park
Summary: CMS membranes are developed to replace or support energy-intensive cryogenic distillation for olefin/paraffin separation. Different polymer precursors lead to varying structures and performances of CMS membranes for olefin/paraffin separation. The effects of incorporating inorganic materials into polymer precursors and the pyrolysis process on the properties of CMS membranes are reviewed, along with prospects and future directions for olefin/paraffin separation using CMS membranes and aging issues.
Article
Multidisciplinary Sciences
Abhishek Roy, Surendar R. Venna, Gerard Rogers, Li Tang, Thomas C. Fitzgibbons, Junqiang Liu, Hali McCurry, David J. Vickery, Derrick Flick, Barry Fish
Summary: In the next decade, separation science will play a crucial role in addressing industrial challenges, with membranes and adsorption technologies emerging as important alternative solutions in modern chemical processes. This paper discusses the application of membranes in petrochemical operations and reports gas separation performance indicators for propylene/propane separation.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Engineering, Chemical
Mi Xu, Haozhen Dou, Feifei Peng, Na Yang, Xiaoming Xiao, Xiaowei Tantai, Yongli Sun, Bin Jiang, Luhong Zhang
Summary: This study develops stable copper-decorated deep eutectic solvent based supported liquid membranes (Cu-DESMs) for efficient ethylene/ethane separation, which exhibit high permeability and selectivity, along with long-term stability.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Xin Ding, Xiaohong Wang, Peng Du, Zenghu Tian, Jingxuan Chen
Summary: This paper establishes a new integrated distillation-membrane separation process solution strategy based on genetic programming for azeotrope separation. Additionally, a price evaluation method based on the theory of unit membrane area is proposed. By optimizing the separation operation using methanol-toluene as an example, the results provide a basis for the development of membrane materials in the experimental research stage.
Article
Engineering, Chemical
Yin-Rui Zhang, Tsai-Wei Wu, I-Lung Chien
Summary: Thermodynamic analysis was conducted to screen feasible ternary systems with water, resulting in TBA/EtOH/water, THF/EtOH/water, and ACN/IPA/water mixtures suitable for separation using a dehydrating agent. TCRED and DCRED process configurations were developed to significantly reduce capital cost and energy consumption while achieving energy savings.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Hae Sol Lee, Nam Sun Kim, Dong-il Kwon, Su-Kyung Lee, Muhammad Numan, Taesung Jung, Kanghee Cho, Michal Mazur, Hae Sung Cho, Changbum Jo
Summary: Organic functionalization of zeolites can adjust their effective pore diameters, allowing for challenging separations. Post-functionalized zeolites demonstrate ideal selectivity in separating light olefins and paraffins.
ADVANCED MATERIALS
(2021)
Article
Engineering, Chemical
Anton N. Petukhov, Dmitry N. Shablykin, Maxim M. Trubyanov, Artem A. Atlaskin, Dmitriy M. Zarubin, Andrey V. Vorotyntsev, Ekaterina A. Stepanova, Kirill A. Smorodin, Olga V. Kazarina, Anastasia N. Petukhova, Vladimir M. Vorotyntsev, Ilya V. Vorotynstev
Summary: A hybrid distillation/membrane process for the purification of xenon extracted from natural gas is studied, aiming to achieve high-purity xenon. Experimental and simulation results show that the hybrid process can significantly improve xenon recovery and productivity, which is especially crucial for high-purity xenon.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Jong Geun Seong, Jeremy C. Lewis, John A. Matteson, Erica Craddock, Ulises Martinez, Harshul Thakkar, Angelica D. Benavidez, Kathryn A. Berchtold, Rajinder P. Singh
Summary: Polymer membrane carbonization is a promising strategy for obtaining carbon molecular sieve (CMS) membrane materials with tailorable cavity size distributions. In this study, highly O-2 permselective CMS hollow fiber membranes (HFMs) derived from rigid PBI materials were fabricated and evaluated for O-2/N-2 separation performance.
Article
Engineering, Chemical
Yanan Li, Bingjie Huo, Zaifeng Xu, Huaqing Qi, Xin Li, Peizhe Cui, Zhaoyou Zhu, Yinglong Wang, Jingwei Yang, Jun Gao
Summary: The development of a basic extractive distillation process for separating an ester/alcohol/water system was reported, with mechanical vapor recompression technology and a redesigned heat exchange network improving energy efficiency. A hybrid pervaporation-distillation process was also developed to enhance environmental performance, although economic advantages over the enhanced distillation process were not clearly demonstrated due to high equipment costs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
H. R. Mortaheb, M. Baghban Salehi, M. Rajabzadeh
Summary: Hybrid membranes of PVDF and electrochemically-fabricated graphene were prepared and studied for desalination. Adding graphene increased membrane hydrophobicity and permeation flux, but excessive graphene content decreased flux. Key parameters for optimal membrane preparation were determined as ethanol concentration, graphene content, and temperature.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Engineering, Chemical
Menghui Huang, Zhenggong Wang, Kuan Lu, Wangxi Fang, Xiangyu Bi, Yatao Zhang, Jian Jin
Summary: The study presents a new strategy to construct MMMs by generating polymer molecular sieve (PMS) fillers in-situ in a thermally stable polymer matrix through post heating treatment. The in-situ generated PMS-based MMMs (i-PMS MMMs) demonstrate significantly improved interfacial compatibility between matrix and filler, with the effective loading content of PMS filler reaching as high as 70 wt%. The molecular sieving property of PMS endows the i-PMS MMMs with high gas selectivity, approaching or exceeding the state-of-the-art 2015 upper bound.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)