Blar i NTNU Open på forfatter "Deng, Liyuan"
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Development of Novel PVAm/PVA Blend FSC Membrane for CO2 Capture
Deng, Liyuan (Doktoravhandlinger ved NTNU, 1503-8181; 2009:138, Doctoral thesis, 2009)As membrane technology is energy-saving, environment-friendly and at lowcost with a small footprint, it has great potential to become a green and efficient CO2 separation technology. Membranes with both high CO2 permeance ... -
The Effect of Crosslinking on the Physical Aging of PTMSP Membranes
Suciu, Sandra-Paula (Master thesis, 2017)For post-combustion CO2 capture, membranes with high permeability and relatively high CO2/N2 selectivity are favoured to compete with the commercial amine-based absorption technology. With the highest known CO2 permeability, ... -
Effect of liquid viscosity on the performance of a non-porous membrane contactor for CO2 capture
Bernhardsen, Ida; Ansaloni, Luca; Betten, Hanne Kalvøy; Deng, Liyuan; Knuutila, Hanna K (Journal article; Peer reviewed, 2019)The effect of liquid viscosity on the performance of a non-porous membrane contactor is important to study for a proper solvent selection and process design. In this work, the overall mass transfer coefficient for MEA- and ... -
Effect of Liquid Viscosity on the Performance of Non-Porous Membrane Contactor for CO2 Capture
Betten, Hanne Kalvøy (Master thesis, 2017)CO2 capture and storage has been proposed as the main option for reduction of CO2 emissions in the short term, and one promising technology is the membrane contactor. Amine based solvents have proved to be effective ... -
Effects of Porous Supports in Thin-Film Composite Membranes on CO<inf>2</inf> Separation Performances
Guo, Hongfang; Xu, Wenqi; Wei, Jing; Ma, Yulei; Qin, Zikang; Dai, Zhongde; Deng, Jing; Deng, Liyuan (Peer reviewed; Journal article, 2023)Despite numerous publications on membrane materials and the fabrication of thin-film composite (TFC) membranes for CO2 separation in recent decades, the effects of porous supports on TFC membrane performance have rarely ... -
Effects of the Morphology of the ZIF on the CO2 Separation Performance of MMMs
Deng, Jing; Dai, Zhongde; Deng, Liyuan (Peer reviewed; Journal article, 2020)In this study, three zeolitic imidazolate frameworks (ZIFs) with different shapes—particles (0D), microneedles (1D), and leaves (2D)—were synthesized by tuning the polymeric additives. These ZIFs have been dispersed into ... -
Electrodialysis in Hydrometallurgical Processes
Zimmermann, Pauline; Tekinalp, Önder; Deng, Liyuan; Forsberg, Kerstin; Wilhelmsen, Øivind; Burheim, Odne Stokke (Chapter, 2020)Electrodialysis (ED) is an ionic exchange membrane process for separation of different components and species. In desalination, a large part of the energy is used to sustain a concentration difference between the solutions, ... -
Electrodialysis in Hydrometallurgical Processes
Zimmermann, Pauline; Tekinalp, Önder; Deng, Liyuan; Forsberg, Kerstin; Wilhelmsen, Øivind; Burheim, Odne Stokke (The Minerals, Metals & Materials Series;, Chapter; Peer reviewed, 2020)Electrodialysis (ED) is an ionic exchange membrane process for separation of different components and species. In desalination, a large part of the energy is used to sustain a concentration difference between the solutions, ... -
Enhanced CO2/H2 separation by GO and PVA-GO embedded PVAm nanocomposite membranes
Xu, Wenqi; Lindbråthen, Arne; Janakiram, Saravanan; Ansaloni, Luca; Deng, Liyuan (Peer reviewed; Journal article, 2023)Membrane technology for CO2/H2 separation, especially when using CO2-selective membranes to keep H2 on the high-pressure retentate side, has been considered promising and energy-efficient for further H2 transport and ... -
Enhanced CO2/H2 separation by GO and PVA-GO embedded PVAm nanocomposite membranes
Xu, Wenqi (Doctoral theses at NTNU;2023:307, Doctoral thesis, 2023)The objective of this Ph.D. project is to develop facilitated transport nanocomposite membranes with superior CO2/H2 separation performances for H2 purification. The research activities include material synthesis, membrane ... -
Enhancement of the Separation Performances of High Free Volume Polymers for CO2 Capture
Løining, Vilde Stangeland (Master thesis, 2017)Poly(1-trimethylsilyl-1-propyne) (PTMSP) is a high free volume polymer exhibiting preferable properties such as a very high permeability for application in gas separation. Still, the poor selectivity of PTMSP need to be ... -
Enhancing Palladium Recovery Rates in Industrial Residual Solutions through Electrodialysis
Zimmermann, Pauline; Tekinalp, Önder; Wilhelmsen, Øivind; Deng, Liyuan; Burheim, Odne Stokke (Peer reviewed; Journal article, 2023)Palladium is a vital commodity in the industry. To guarantee a stable supply in the future, it is imperative to adopt more effective recycling practices. In this proof-of-concept study, we explore the potential of ... -
Experimental and theoretical study on efficient CO2 absorption coordinated by molecules and ions of DBN and 1,2,4-triazole formed deep eutectic solvents
Ruan, Jiawei; Ye, Xiangzhu; Wang, Ruizhuan; Chen, Lifang; Deng, Liyuan; Qi, Zhiwen (Peer reviewed; Journal article, 2023)Deep eutectic solvents (DESs) as a new class of designer solvents have attracted intensive attention in CO2 capture, while the interactions between CO2 and underlying molecules and/or ions in DESs are poorly understood. ... -
Experimental Study of CO2 Solubility in Ionic Liquids and Polyethylene Glycols
Huang, Huang (Master thesis, 2015)The parameter of density, viscosity are tested and fitted with the result of solubility measurement. With series of experiments, this chemical blend is considered with a good effect. The mixture of 50% tetrabutylphosphonium ... -
Fabrication and Characterization of Polymeric Membranes for Dehydration of Triethylene Glycol Used for Subsea Application
Lønning, Askild Johannes Balchen (Master thesis, 2019)Hensikten med dette prosjektet er undersøke om en polybenzimidazole (PBI) membran kan brukes til å dehydrere trietylen glykol (TEG) i en pervaporasjons prosess som en del av en membran prosess for dehydrering av naturgass. ... -
Fabrication and Evaluation of Bio-based Nanocomposite TFC Hollow Fiber Membranes for Enhanced CO2 capture
Dai, Zhongde; Deng, Jing; Yu, Qiang; Helberg, Ragne M Lilleby; Janakiram, Saravanan; Ansaloni, Luca; Deng, Liyuan (Journal article; Peer reviewed, 2019)Nanocellulose is a promising and sustainable biobased nanomaterial because of its excellent mechanical properties, biocompatibility, natural abundance, and especially its high aspect ratio. Interest in applying nanocellulose ... -
Facile and Solvent-free Fabrication of PEG-based Membranes with Interpenetrating Networks for CO2 Separation
Deng, Jing; Dai, Zhongde; Yan, Jiaqi; Sandru, Marius; Sandru, Eugenia; Spontak, Richard J; Deng, Liyuan (Journal article; Peer reviewed, 2018)For nearly two decades, membranes derived from polyethers have served as promising candidate materials for CO2 separation. Due to the inherent tendency of high-molecular-weight poly(ethylene oxide) (PEO) to crystallize and ... -
Facilitated transport membranes containing graphene oxide-based nanoplatelets for CO2 separation: Effect of 2D filler properties
Janakiram, Saravanan; Marin Espejo, Juan Luis; Yu, Xinyi; Ansaloni, Luca; Deng, Liyuan (Peer reviewed; Journal article, 2020)Realization of suitable membrane-based technology for efficient CO2 capture to mitigate climate change relies on the development of thin-film composite (TFC) membranes with superior separation performance. Graphene oxide ... -
Facilitated Transport Nanocomposite Membranes for CO<inf>2</inf>/H<inf>2</inf> Separation: The Effect of Mobile Carriers
Xu, Wenqi; Lindbråthen, Arne; Wang, Xueru; Dai, Zhongde; Deng, Liyuan (Peer reviewed; Journal article, 2023)Using CO2-selective membranes based on facilitated transport mechanisms has been reported as an energy-efficient approach for hydrogen purification from CO2-containing mixed gas streams. In this work, four CO2-philic mobile ... -
Field test of a pre-pilot scale hollow fiber facilitated transport membrane for CO2 capture
Dai, Zhongde; Fabio, Santinelli; Marino, Nardelli Giuseppe; Riccardo, Costi; Deng, Liyuan (Journal article; Peer reviewed, 2019)In this work, a pre-pilot scale hollow fiber membrane module with a PVA/ProK hybrid membrane containing up to 40 wt% amino acid salt was fabricated and tested infield for CO2 capture. The petroleum coke-fired flue gas ...