Article
Biochemistry & Molecular Biology
Guoqiang Li, Wojciech Kujawski, Katarzyna Knozowska, Joanna Kujawa
Summary: CO2 separation from flue gas based on membrane technology has received significant attention in recent decades. In this study, PEI hollow fibers were fabricated using a dry-jet-wet spinning technique and then coated with a PDMS selective layer to prepare composite membranes. Various spinning conditions of the hollow fibers were characterized, and it was found that factors such as dope concentration, bore fluid flow rate, and bore fluid composition significantly influenced the gas permeance and ideal selectivity of the PDMS/PEI composite membrane.
Article
Thermodynamics
Wonho Jung, Jinwon Lee
Summary: The study presents a techno-economic analysis of four different solid sorbent processes for post-combustion CO2 capture, showcasing the feasibility of achieving low CO2 capture costs through internal heat integration and enhanced CO2 cyclic capacity.
Article
Engineering, Environmental
Saravanan Janakiram, Fabio Santinelli, Riccardo Costi, Arne Lindbrathen, Giuseppe Marino Nardelli, Kris Milkowski, Luca Ansaloni, Liyuan Deng
Summary: This study presents testing of pre-pilot scale membrane modules for CO2 capture in a cement plant in Italy, showing high CO2 flux and purity, good resistance, and high potential for efficient separation unit, as demonstrated through operating parameters and simulation studies.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Mirtha A. O. Lourenco, Tania Frade, Marta Bordonhos, Micaela Castellino, Sergio Bocchini, Moises L. Pinto
Summary: Sponge-like biochar sorbents with enhanced CO2 uptake were prepared from chitosan through dissolution, freeze-drying, and pyrolysis at different temperatures. The pyrolysis temperature influenced the textural properties of the biochar, as well as the type and amount of N-species present. XPS analysis revealed the transformation of amino groups into different N-species during pyrolysis. The biochar adsorbed higher amounts of CO2 compared to CH4 and N-2 gases, with the highest selectivity for CO2/N-2 separation observed for the sample pyrolyzed at 800 degrees C. The adsorption process was predominantly governed by physisorption, and the biochar showed tolerance to water vapor adsorption, indicating its suitability for use in moisture-rich environments.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Shu Yang, Cao Liu, Pingshan Wang, Huimin Yi, Fenghua Shen, Hui Liu
Summary: A novel Co9S8 nanoparticles-embedded porous carbon was designed for efficient Hg-0 capture from smelting flue gas, showing better adsorption capacity and recyclability compared to other materials. The Co9S8-PC demonstrates a significantly large Hg-0 adsorption capacity of 43.18 mg/g and a sustainable approach for Hg-0 recovery.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Applied
Qingjun Chen, Siyu Wang, Kumar R. Rout, De Chen
Summary: A novel low-concentration CO2 capture material (PEI/MCS) has been developed, showing high CO2 capture capacity, excellent regenerability, and stability. By adjusting the pore structure and PEI loading, the CO2 capture performance can be optimized.
Review
Engineering, Chemical
Mariia Pasichnyk, Petr Stanovsky, Petr Polezhaev, Boleslav Zach, Michal Syo, Marek Bobak, Johannes C. Jansen, Michal Pribyl, Jason E. Bara, Karel Friess, Jaromir Havlica, Douglas L. Gin, Richard D. Noble, Pavel Izak
Summary: The major gaseous pollutants emitted during the combustion of fossil fuels, energy-intensive production of materials, and waste processing are CO2, SO2, and NOx. The industry and research community are working together to intensify their capture and reduce their emissions in order to meet stricter emission limits. Membrane separation technology, which is energy-efficient and can be combined with other technologies, is a significant application for environmental protection. Different types of membranes with specific functions and unique systems are discussed as promising technologies for flue gas purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Rui Ding, Qiuchen Wang, Xuehua Ruan, Yan Dai, Xiangcun Li, Wenji Zheng, Gaohong He
Summary: By introducing small PEI molecules into the nanocages of ZIF-8 HNTs, a facilitated CO2 transmission channel with low resistance was constructed, leading to improved CO2 permeability and selectivity. Additionally, the adjustment of effective sieving size by PEI and the enhancement of interfacial compatibility through hydrogen bonding between PEI and Pebax further contributed to the enhancement of CO2/N-2 selectivity in the MMMs.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Polymer Science
Guoqiang Li, Katarzyna Knozowska, Joanna Kujawa, Andrius Tonkonogovas, Arunas Stankevicius, Wojciech Kujawski
Summary: In this study, PDMS/PEI hollow-fiber membranes were prepared using the dip-coating method and characterized for gas separation performance. It was found that the concentration of PDMS solution and coating time significantly affected the thickness of the thin layer and gas permeance. Results showed that as the coating time and PDMS solution concentration increased, the thickness of the PDMS layer and silicon content in the selective layer also increased.
Article
Thermodynamics
Miroslav Raudensky, Tereza Kudelova, Erik Bartuli, Tereza Kroulikova, Ilya Astrouski
Summary: Polymeric hollow fiber heat exchangers are ideal for flue gas cooling due to their corrosion resistance, self-cleaning capability, and high heat transfer coefficient.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Chemistry, Physical
Chang Zhu, Guofei Shen, Wei Chen, Xiao Dong, Guihua Li, Yanfang Song, Wei Wei, Yuhan Sun
Summary: The use of a copper hollow fiber gas-diffusion electrode constructed by a phase-inversion/sintering process enables efficient and high-yield CO2 reduction to formate, showing positive potential for optimizing the electroreduction of CO2.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Olusola Johnson, Babu Joseph, John N. Kuhn
Summary: The study successfully separated CO2 from biogas using PEI-modified resins, demonstrating high adsorption capacity and stability. Economic feasibility analysis shows that PEI-impregnated resins are more cost-effective than traditional upgrading technologies.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Review
Green & Sustainable Science & Technology
Zucheng Cheng, Shaohua Li, Yu Liu, Yi Zhang, Zheng Ling, Mingjun Yang, Lanlan Jiang, Yongchen Song
Summary: The review discussed the effects of additives on hydrate formation and proposed future research directions, such as the development of more environmentally friendly thermodynamic additives and process optimization.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Adam J. Greer, S. F. Rebecca Taylor, Helen Daly, Johan Jacquemin, Christopher Hardacre
Summary: A study investigated a dual-IL system for the selective capture and separation of CO2 and SO2. Results showed that [P66614][Tetz] efficiently captured SO2 and protected [P-66614][Benzim] from acidic contaminants, thereby extending its CO2 uptake capacity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Chemical
Jianxin Zhang, Qing Zhao, Shidi Wang, Xiaoyao Tan
Summary: This study demonstrated the fabrication of an efficient CO2 sorbent by grafting amines on polyacrylonitrile hollow fibers. The TEPA@PAN hollow fibers showed good CO2 adsorption capacity and regeneration performance, making them promising for CO2 capture from confined space or ambient air.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Robert Mueller, Venkat Hariharan, Chen Zhang, Ryan Lively, Sergey Vasenkov
JOURNAL OF MEMBRANE SCIENCE
(2016)
Article
Polymer Science
Donghui Wang, YanFang Fan, Mingqiang Zhang, Robert B. Moore, Chris J. Cornelius
EUROPEAN POLYMER JOURNAL
(2017)
Article
Energy & Fuels
Yanfang Fan, Fateme Rezaei, Xiaomei Yang
Article
Engineering, Chemical
Qixiang Wang, Fei Huang, Chris J. Cornelius, Yanfang Fan
Summary: Carbon molecular sieve (CMS) membranes fabricated using carboxylated polyimides exhibited enhanced gas separation performance, particularly in CO2 and olefin separation. Increasing the pyrolysis temperature of polyimides can improve membrane selectivity but reduce permeability, while Zn2+ functionalization can further enhance gas selectivity. These materials have great potential for industrial applications such as CO2 separation and olefin recovery, surpassing Robeson's upper-bound for gas separation.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Review
Energy & Fuels
Yanfang Fan, Xiaohao Jia
Summary: In recent decades, significant progress has been made in the rational design, synthesis, and application of solid amine CO2 adsorbents. Amino-functionalized silica adsorbents, due to their high adsorption capacity, facile synthesis procedure, and low cost, hold great promise for CO2 capture technologies. However, to enhance their industrial application, further improvements in stability and understanding the relationship between amine/support structure and adsorption performance are needed.
Article
Engineering, Chemical
Shan Xu, Xiaolong Ren, Ning Zhao, Lei Wu, Zhiguang Zhang, Yanfang Fan, Nanwen Li
Summary: A high-performance crosslinked brominated 6FDA-based polyimide membrane was developed by tuning the permeability and selectivity through introducing bromine atoms into the polyimide structure. The crosslinking reaction greatly stabilized the membrane performance against plasticization under high CO2 feed pressure. This study provides a facile approach for the preparation of high-performance gas separation polymeric membranes with enhanced plasticization resistance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Xueli Wang, Lei Wu, Nanwen Li, Yanfang Fan
Summary: The research successfully developed MMMs using TB polymer, PDA, and ZIF-8 fillers, improving membrane performance in terms of mechanical properties and gas selectivity.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Xiya Yuan, Huiya Yu, Shan Xu, Guolong Huo, Chris J. J. Cornelius, Yanfang Fan, Nanwen Li
Summary: The combination of functionalized metal organic frameworks with a polymer with structural similarity is a feasible route to enhance binary phase adhesion of hybrid membranes. The incorporation of amine-modified ZIF-8 with a permeable imidazole-containing copolyimide produces compatible mixed matrix membranes (MMMs) with optimized gas separation performance. The hydrogen bonding created between amine groups and the polymer matrix significantly improves interfacial adhesion and leads to increased membrane permeability, thermal stability, and gas selectivity, especially under sub-ambient temperatures for CO2/CH4 and H-2/CH4 separations.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Xiuling Chen, Yanfang Fan, Lei Wu, Linzhou Zhang, Dong Guan, Canghai Ma, Nanwen Li
Summary: Researchers have designed a porous polymer membrane with high permeability and selectivity through multi-crosslinking, surpassing traditional separation membrane limits. Adjusting reaction conditions can achieve ultra-selective gas separation.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Chemical
Yan Liu, Wei Xie, Shuang Liang, Xingxun Li, Yanfang Fan, Shuangjiang Luo
Summary: Adjusting the functionality of fillers and polyimides enables precise control of membrane interfacial bonding behavior, resulting in a high-performance mixed matrix membrane with tunable separation performance.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Bennett D. Marshall, Wenjun Li, Ryan P. Lively
Summary: In this study, researchers used dry glass reference perturbation theory (DGRPT) and fully mutualized diffusion theory to predict the temperature and pressure dependent separations of complex liquid mixtures using SBAD-1 glassy polymer membranes. The results showed that the approach could accurately predict membrane-based separation of complex liquid mixtures over a wide range of temperature and pressure, using only single-component vapor sorption isotherms measured at 25 degrees C to parameterize the model. Furthermore, the model was successfully applied to predict the membrane separation of a light shale crude using a structure oriented lumping (SOL) based compositional model of petroleum, showing accurate prediction based on the trend of both molecular weight and molecular class.
Article
Engineering, Chemical
Yanfang Fan, Xueli Wang, Zhaoyi Chen, Lei Wu, Shuangjiang Luo, Nanwen Li
Summary: Energy-efficient hydrogen recovery technology is crucial for the development of hydrogen-based economy and achieving global carbon-neutrality. In this study, polydopamine-modified ZIF-8 nanoparticles were introduced into a Tro''ger's base polymer membrane to develop a permeable membrane for selective H2 separation. The resulting mixed matrix membranes exhibited significantly improved H2 permeability and good stability.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Chemical
Yanxue Jiang, Yanhui Li, Xiangyu Meng, Yanfang Fan, Nanwen Li, Kang Geng, Shuangjiang Luo, Can Wang
Summary: A mixed matrix membrane (MMMs) with tiny defects in ZIF-8 is fabricated using a phosphoric acid doping approach, resulting in significantly improved H2 permeability and H2/CO2 mixed gas selectivity. The membrane shows stable performance in hydrogen separation at high temperatures.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Xiaohao Jia, Peiheng Yang, Yanfang Fan, Chengxiu Wang
Summary: The buildup of solid waste and global warming pose major challenges, but synthesizing solid amine materials can address CO2 emissions and utilize solid waste effectively.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Chemistry, Multidisciplinary
Hannah E. Holmes, Ryan P. Lively, Matthew J. Realff
Summary: This study defines the target properties of CO2 capture adsorbents that would ensure economic viability of bioenergy with carbon capture and storage (BECCS), emphasizing working capacity, lifetime, heat of adsorption, and exponential degradation decay constants. The research predicts that a BECCS process cost of $65/t-CO2 can be achieved with specific adsorbent properties, including cost, working capacity, heat of adsorption, and minimum lifetime.