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Integrated adsorption and absorption process for post-combustion CO

Gongkui Xiao, Penny Xiao, Andrew Hoadley, Paul Webley

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 483-492 doi: 10.1007/s11705-020-1964-3

Abstract: This study explored the feasibility of integrating an adsorption and solvent scrubbing process for post-combustionThis integrated process has two stages: the first is a vacuum swing adsorption (VSA) process using activatedThe results showed that the adsorption process could enrich CO in the flue gas from 12 to 50 mol-% with

Keywords： vacuum swing adsorption     monoethanolamine     post-combustion     CO2 capture     integrated process    

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Pressure swing adsorption/membrane hybrid processes for hydrogen purification with a high recovery

Baojun Li,Gaohong He,Xiaobin Jiang,Yan Dai,Xuehua Ruan

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 255-264 doi: 10.1007/s11705-016-1567-1

Abstract: and purified from coal gasification-produced syngas using two kinds of hybrid processes: a pressure swingadsorption (PSA)-membrane system (a PSA unit followed by a membrane separation unit) and a membrane-PSA

Keywords： hydrogen purification     PSA     membrane separation     hybrid process    

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Molecular size characterization of heavy oil fractions in vacuum and solution by molecular dynamic simulation

Wenpo REN, Honggang CHEN, Chaohe YANG, Honghong SHAN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 250-256 doi: 10.1007/s11705-009-0281-7

Abstract: Two kinds of heavy oils were fractionated into eight fractions by Liquid-Solid Adsorption ChromatographyAnd then, the most stable conformations of polycyclic aromatic and heavy resin in vacuum and toluenethat the radius of gyration of polycyclic aromatic and heavy resin was 0.55–0.70 nm in vacuumWith molecular weight increasing, the molecular size in vacuum and toluene solution also increased.Thus, the molecular size in toluene solution was larger than that in vacuum.

Keywords： dynamic simulation     molecular dynamic     behavior     molecule     Adsorption Chromatography    

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Structural optimal design of a swing vane compressor

Junjie MA,Xiang CHEN,Zongchang QU

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 764-769 doi: 10.1007/s11708-016-0449-z

Abstract: In this paper, a novel swing vane rotary compressor (SVC) was introduced, which had significant advantages—simpleBased on the swing vane compressor geometry model, thermodynamic model and kinetic model, the mathematicalThe complex optimization method was adopted to study the structure of the swing vane compressor.

Keywords： swing vane compressor     simulation     optimization design    

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Bioenergy recovery from landfill gas: A case study in China

Wei WANG, Yuxiang LUO, Zhou DENG

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 20-31 doi: 10.1007/s11783-009-0012-9

Abstract: Pressure swing adsorption technology was used in LFG purification, and laboratory experiment, pilot-scaleThe optimal adsorption pressure and adsorption time were 0.25 MPa and 2 min, respectively, under which

Keywords： landfill gas (LFG)     compressed purified landfill gas (CPLG)     pressure swing adsorption (PSA)     alternative    

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Lateral displacement of soft ground under vacuum pressure and surcharge load

Chin-Yee ONG, Jin-Chun CHAI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 239-248 doi: 10.1007/s11709-011-0110-1

Abstract: Surcharge load (e.g. embankment fill) will induce settlement and outward lateral displacement, while vacuumIdeally, combination of surcharge load and vacuum pressure can reduce or minimize the lateral displacementthe main influencing factors on lateral displacement of a soft clayey ground under the combination of vacuumthat the outward lateral displacement increases with the increase of the ratio of surcharge load to vacuumTo predict the lateral displacement of a ground under the combination of surcharge load and vacuum pressure

Keywords： vacuum consolidation     lateral displacement     PVD     finite element analysis     surcharge load    

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Numerical study of conduction and radiation heat losses from vacuum annulus in parabolic trough receivers

Dongqiang LEI, Yucong REN, Zhifeng WANG

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1048-1059 doi: 10.1007/s11708-020-0670-7

Abstract: Parabolic trough receiver is a key component to convert solar energy into thermal energy in the parabolic trough solar system. The heat loss of the receiver has an important influence on the thermal efficiency and the operating cost of the power station. In this paper, conduction and radiation heat losses are analyzed respectively to identify the heat loss mechanism of the receiver. A 2-D heat transfer model is established by using the direct simulation Monte Carlo method for rarefied gas flow and heat transfer within the annulus of the receiver to predict the conduction heat loss caused by residual gases. The numerical results conform to the experimental results, and show the temperature of the glass envelope and heat loss for various conditions in detail. The effects of annulus pressure, gas species, temperature of heat transfer fluid, and annulus size on the conduction and radiation heat losses are systematically analyzed. Besides, the main factors that cause heat loss are analyzed, providing a theoretical basis for guiding the improvement of receiver, as well as the operation and maintenance strategy to reduce heat loss.

Keywords： parabolic trough receiver     vacuum annulus     rarefied gas     DSMC (direct simulation Monte Carlo)     heat loss    

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Modeling of a Piston Driven, Pressure Swing Reactor

Hu Ming,Zhou Xinggui,Gu Zheng,Yuan Weikang

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 52-57

Abstract:

A model for piston driven, rapid pressure swing reactor is developed.

Keywords： piston driven pressure swing reactor     pressure swing     multifunctional reactor     dynamic simulation    

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interconnected nano-channels into polyvinylidene fluoride membranes for desalination applications by vacuum

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1162-1182 doi: 10.1007/s11705-022-2276-6

Abstract: to fabricate lycopodium/polyvinylidene fluoride flat-sheet membrane for desalination applications by vacuumIn vacuum membrane distillation experiments, using a 15000 ppm NaCl solution as a feed at 70 °C, the

Keywords： lycopodium     hydrophobicity     vacuum membrane distillation     desalination    

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Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 142-147 doi: 10.1007/s11708-015-0357-7

Abstract: The analysis of the failure mechanics, namely hydrogen permeation of vacuum insulated tubing (VIT), indicatedTo solve this problem, some measures by using non-vacuum materials were proposed and analyzed in this

Keywords： vacuum insulated tubing     cyclic steam stimulation     insulation material     thermal conductivity     foam-glass    

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Toward better understanding vacuum ultraviolet–iodide induced photolysis via hydrogen peroxide formation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 5, doi: 10.1007/s11783-021-1489-0

Abstract:

• UV/VUV/I– induces substantial H2O2 and IO3– formation, but UV/I– does not.

Keywords： Vacuum ultraviolet     Hydrogen peroxide     Iodate     Hydroxyl radical     Redox transition    

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Research on fuzzy neural network control method for high-frequency vacuum drying of wood

Jiang Bin,Sun Liping,Cao Jun and Zhou Zheng

Strategic Study of CAE 2014, Volume 16, Issue 4,   Pages 17-20

Abstract:

High- frequency vacuum combined wood drying is a kind of fast dryingOn the basis of theoretical analysis with high frequency in wood vacuum drying process，the fuzzy controller

Keywords： high-frequency vacuum     wood drying     fuzzy neural network    

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Enhancement of distillate output of double basin solar still with vacuum tubes

Hitesh N PANCHAL, P K SHAH

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 101-109 doi: 10.1007/s11708-014-0299-5

Abstract: The performance of the double basin solar still was also increased by attaching vacuum tubes to the lowerproposed a novel approach to increase the distillate output of the double basin solar still attached with vacuumThe integration of vacuum tubes with solar still greatly increases the distillate output of the solar

Keywords： double basin solar still     calcium stones     pebbles     granite gravel     distillate output    

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Technological Development of High Speed Maglev System Based on Low Vacuum Pipeline

Feng Zhongwei, Fang Xing, Li Hongmei, Cheng Aijun, Pan Yongjie

Strategic Study of CAE 2018, Volume 20, Issue 6,   Pages 105-111 doi: 10.15302/J-SSCAE-2018.06.017

Abstract: the magnetic levitation technique to reduce wheel-rail friction and vibration, construction of a low vacuumThis paper expounds the significance of developing a high speed maglev system based on low vacuum pipelines

Keywords： rail transit     low vacuum pipes     high speed maglev     system technology    

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Vacuum promotes metabolic shifts and increases biogenic hydrogen production in dark fermentation systems

Haifa RAJHI,Daniel PUYOL,Mirna C. MARTÍNEZ,Emiliano E. DÍAZ,José L. SANZ

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 513-521 doi: 10.1007/s11783-015-0777-y

Abstract: four synthetic media, two industrial wastewater, and one domestic effluent) and the effect of applying vacuumThe application of vacuum promoted an increase in the diversity of hydrogen-producing bacteria, suchNevertheless, reduction of the hydrogen partial pressure by application of vacuum lead to further oxidationInterestingly, vacuum greatly promoted biogenic hydrogen production from a real wastewater, which opens

Keywords： dark fermentation     biohydrogen     wastewaters     vacuum    

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Title Author Date Type Operation

Integrated adsorption and absorption process for post-combustion CO

Gongkui Xiao, Penny Xiao, Andrew Hoadley, Paul Webley

Journal Article

Pressure swing adsorption/membrane hybrid processes for hydrogen purification with a high recovery

Baojun Li,Gaohong He,Xiaobin Jiang,Yan Dai,Xuehua Ruan

Journal Article

Molecular size characterization of heavy oil fractions in vacuum and solution by molecular dynamic simulation

Wenpo REN, Honggang CHEN, Chaohe YANG, Honghong SHAN,

Journal Article

Structural optimal design of a swing vane compressor

Junjie MA,Xiang CHEN,Zongchang QU

Journal Article

Bioenergy recovery from landfill gas: A case study in China

Wei WANG, Yuxiang LUO, Zhou DENG

Journal Article

Lateral displacement of soft ground under vacuum pressure and surcharge load

Chin-Yee ONG, Jin-Chun CHAI

Journal Article

Numerical study of conduction and radiation heat losses from vacuum annulus in parabolic trough receivers

Dongqiang LEI, Yucong REN, Zhifeng WANG

Journal Article

Modeling of a Piston Driven, Pressure Swing Reactor

Hu Ming,Zhou Xinggui,Gu Zheng,Yuan Weikang

Journal Article

interconnected nano-channels into polyvinylidene fluoride membranes for desalination applications by vacuum

Journal Article

Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Journal Article

Toward better understanding vacuum ultraviolet–iodide induced photolysis via hydrogen peroxide formation

Journal Article

Research on fuzzy neural network control method for high-frequency vacuum drying of wood

Jiang Bin,Sun Liping,Cao Jun and Zhou Zheng

Journal Article

Enhancement of distillate output of double basin solar still with vacuum tubes

Hitesh N PANCHAL, P K SHAH

Journal Article

Technological Development of High Speed Maglev System Based on Low Vacuum Pipeline

Feng Zhongwei, Fang Xing, Li Hongmei, Cheng Aijun, Pan Yongjie

Journal Article

Vacuum promotes metabolic shifts and increases biogenic hydrogen production in dark fermentation systems

Haifa RAJHI,Daniel PUYOL,Mirna C. MARTÍNEZ,Emiliano E. DÍAZ,José L. SANZ

Journal Article