Article
Chemistry, Physical
Gokul Venugopalan, Deepra Bhattacharya, Evan Andrews, Luis Briceno-Mena, Jose Romagnoli, John Flake, Christopher G. Arges
Summary: In this study, a high-temperature PEM EHP demonstrated successful purification of hydrogen from gas mixtures with high CO content, achieving high recovery rates and minimal performance loss. This presents a possibility for a simplified hydrogen separation and compression technology.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Yao-Ting Wang, Corie McHale, Xiqu Wang, Chung-Kai Chang, Yu-Chun Chuang, Watchareeya Kaveevivitchai, Ognjen S. Miljanic, Teng-Hao Chen
Summary: The porous molecular crystal (PMC) assembled from macrocyclic cyclotetrabenzoin acetate is an efficient adsorbent for CO2 separations, offering high affinity and stability for CO2 capture and allowing for pressure swing adsorption processes. With kinetic selectivity, it achieves high-purity separation of N-2 and CH4.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Physical
Rebecca L. Siegelman, Eugene J. Kim, Jeffrey R. Long
Summary: Global investment in counteracting climate change has generated interest in carbon capture and sequestration (CCS) as an emissions mitigation technology. Porous materials can adsorb large quantities of gas, making them a promising solution for CO2 capture and decarbonization efforts.
Article
Computer Science, Interdisciplinary Applications
Taehun Kim, Joseph K. Scott
Summary: Pressure swing adsorption (PSA) has potential for chemical process intensification, but the lack of trusted simulation tools has hindered its widespread adoption and further research. This paper presents a complete framework for dynamic modeling and simulation of PSA processes, along with an open-source simulator called toPSAil. It introduces novel methods for handling flow reversals and implementing pressure-flow relationships and includes innovations to improve efficiency and reduce trial-and-error tuning.
COMPUTERS & CHEMICAL ENGINEERING
(2023)
Article
Thermodynamics
Daniel B. Boman, Srinivas Garimella
Summary: A study found that in the desorption stage of a temperature-swing adsorption process, the liquid-phase heat transfer fluid outperforms the gas-phase heat transfer fluid by not only more thoroughly removing impurities, but also retaining more initial methane.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Review
Chemistry, Multidisciplinary
Samira Karimi, Rama Rao Karri, Mohammad Tavakkoli Yaraki, Janardhan Reddy Koduru
Summary: Bioethanol, produced from biological resources, is considered as an alternative, renewable, and sustainable energy source in the context of the circular economy. It has similar energy content to gasoline but emits less toxic pollutants compared to fossil fuels. The anhydrous form of bioethanol is essential for blending with regular gasoline, and pressure swing adsorption method is an effective and widely used technique for dehydration in bioethanol production.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Dan Luo, Jinya Tian, Jonathan L. Sessler, Xiaodong Chi
Summary: This study presents a new cavity-extended version of calix[4]pyrrole (C4P) that forms nonporous adaptive crystals (NACs) suitable for the separation and purification of polar compounds like pyridine and 1,4-dioxane. These C4P-based NACs exhibit high adsorption capacity and can be reused multiple times without significant performance loss.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Engineering, Chemical
Kasturi Nagesh Pai, Tai T. T. Nguyen, Vinay Prasad, Arvind Rajendran
Summary: The efficacy of an adsorbent agnostic machine-learning surrogate model for rapid design and optimization of a Skarstrom cycle vacuum swing adsorption (VSA) process is experimentally validated. The study confirms that the surrogate model can accurately predict key performance parameters and be used for adsorbent screening and adsorption process optimization.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Christos C. Chatziasteriou, Eustathios S. Kikkinides, Michael C. Georgiadis
Summary: This paper presents a critical review on the design and optimization of post-combustion CO2 capture processes, focusing on absorption, adsorption, and membrane separations. It highlights the importance of efficient modeling and simulation frameworks, synthesis and design studies, and model-based optimization approaches. The interactions between material development and process design and optimization are also explored. The paper concludes that absorption is currently the most mature technology for post-combustion CO2 capture, while adsorption and membrane-based separations require more development to achieve efficient CO2 capture.
COMPUTERS & CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Feifei Zhang, Kunjie Li, Jian Chen, Xinran Zhang, Kebing Li, Hua Shang, Lei Ma, Wujie Guo, Xinlong Wu, Jiangfeng Yang, Jinping Li
Summary: This study investigated the separation of N-2/CH4 using different Cr-metal-organic frameworks, with TYUT-96Cr showing the best performance in terms of absorption ratio and CH4 productivity. Pressure-swing adsorption simulations demonstrated that TYUT-96Cr could effectively remove trace N-2 in practical industrial applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Environmental
John H. Jacobs, Connor E. Deering, Ruohong Sui, Kevin L. Lesage, Robert A. Marriott
Summary: This study investigates the degradation rates of different materials during long-term cycling using a rapid cycling thermal swing adsorption apparatus. It is found that higher regeneration temperatures result in greater capacity loss for all tested materials. Interestingly, the inclusion of water in the regenerating gas stream mitigates the degradation of the desiccants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Guoping Hu, Qinghu Zhao, Mitch Manning, Li Chen, Lanjin Yu, Eric F. May, Kevin Gang Li
Summary: The study demonstrates the feasibility of separating methane from low concentration sources using the PVSA method, achieving high purity CH4 product gas with reduced energy consumption.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Tai T. T. Nguyen, Jian-Bin Lin, George K. H. Shimizu, Arvind Rajendran
Summary: This study measured the adsorption equilibrium of pure CO2 and N-2 on a hydrophobic metal-organic framework called CALF-20, using volumetric and gravimetric methods. The competitive adsorption of CO2 and N-2 and the column dynamics were also examined. The results showed that CALF-20 had comparable performance with benchmark materials zeolite 13X and UTSA-16 in capturing CO2 under specific conditions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Zhongbo Guan, Yayan Wang, Xiuxin Yu, Yuanhui Shen, Dongrong He, Zhongli Tang, Wenbin Li, Donghui Zhang
Summary: A dual-reflux pressure swing adsorption (DR-PSA) process was proposed for initial separation of blue coal gas to capture CO2 and enrich H-2. By adjusting operating parameters and optimizing the process, CO2 was effectively captured and H-2 was enriched.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Ayse Sever Akdag, Ines Duran, Gulen Gullu, Covadonga Pevida
Summary: The study evaluates the CO2 capture performance of hazelnut shell-based activated carbon adsorbent from dry simulated flue gases using Temperature Swing Adsorption (TSA) and Vacuum Swing Adsorption (VSA) configurations. Results show that the biomass-based adsorbent exhibits high CO2 adsorption performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Nikolaos E. Koltsaklis, Myronas Giannakakis, Michael C. Georgiadis
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2018)
Article
Engineering, Chemical
George N. Nikolaidis, Eustathios S. Kikkinides, Michael C. Georgiadis
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2018)
Article
Engineering, Chemical
Chrysovalantou Ziogou, Spyros Voutetakis, Michael C. Georgiadis, Simira Papadopoulou
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2018)
Editorial Material
Engineering, Chemical
Michael C. Georgiadis, Pei Liu, Georgios M. Kopanos
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2018)
Article
Chemistry, Multidisciplinary
A. Rathi, E. S. Kikkinides, D. M. Ford, P. A. Monson
Article
Chemistry, Physical
E. S. Kikkinides, P. A. Monson, R. Valiullin
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Physical
E. S. Kikkinides, G. Gkogkos, P. A. Monson, R. Valiullin
Summary: In this study, the relationship between density distributions encountered during the dynamics of capillary condensation and those distributions at equilibrium or metastable equilibrium was investigated. The states encountered were categorized as out of equilibrium or quasi-equilibrium based on the magnitude of the driving force for mass transfer.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Biochemistry & Molecular Biology
Triantafyllia K. Grekou, Dimitris E. Koutsonikolas, George Karagiannakis, Eustathios S. Kikkinides
Summary: Ceramic membranes have been evaluated and modified to enhance their gas separation performance, particularly in CO2 removal and H-2 recovery. The developed membranes show promising separation performance, achieving high H-2 purity at elevated temperatures and pressures.
Article
Environmental Sciences
Chrysovalantou Koutsiantzi, Manassis Mitrakas, Anastasios Zouboulis, Ioannis Kellartzis, George Stavropoulos, Eustathios S. Kikkinides
Summary: This study evaluates the separation performance of a commercially available polymeric membrane for upgrading biogas. The experimental results show that increasing the feed pressure can improve methane purity but reduce methane recovery. Multiple membrane modules are needed to improve purity.
Article
Computer Science, Interdisciplinary Applications
Christos C. Chatziasteriou, Eustathios S. Kikkinides, Michael C. Georgiadis
Summary: This paper presents a critical review on the design and optimization of post-combustion CO2 capture processes, focusing on absorption, adsorption, and membrane separations. It highlights the importance of efficient modeling and simulation frameworks, synthesis and design studies, and model-based optimization approaches. The interactions between material development and process design and optimization are also explored. The paper concludes that absorption is currently the most mature technology for post-combustion CO2 capture, while adsorption and membrane-based separations require more development to achieve efficient CO2 capture.
COMPUTERS & CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
A. Alzaidi, E. S. Kikkinides, D. Schneider, P. A. Monson, R. Valiullin
Summary: Adsorption/desorption and melting/freezing in structurally disordered nanoporous solids exhibit strongly non-equilibrium behavior. However, many questions related to the free energy spectrum, existence and accessibility of equilibrium transitions, and relaxation dynamics towards the global energy minimum, still remain poorly addressed. In this study, a minimal model of pore networks with statistical disorder is used to explore the system free energies along solid-liquid and liquid-gas transitions. The rigorous results obtained provide insights into the equilibrium transition line in porous solids with arbitrary pore topology.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Meeting Abstract
Hematology
Ana Luz Quiroga-Campano, Louise Enfield, Matthew Foster, Margaritis Kostoglou, Michael Georgiadis, Athanasios Mantalaris, Nicki Panoskaltsis
Article
Computer Science, Artificial Intelligence
Dragan D. Nikolic
PEERJ COMPUTER SCIENCE
(2018)
Proceedings Paper
Engineering, Environmental
Apostolos P. Elekidis, Nikolaos E. Koltsaklis, Michael C. Georgiadis
28TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING
(2018)
Proceedings Paper
Engineering, Environmental
Georgios P. Georgiadis, Chrysovalantou Ziogou, Georgios Kopanos, Manuel Garcia, Daniel Cabo, Miguel Lopez, Michael C. Georgiadis
28TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING
(2018)
