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Modeling of coal swelling induced by water vapor adsorption

Zhejun PAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 94-103 doi: 10.1007/s11705-011-1172-2

Abstract: Coal swelling or shrinkage by adsorption or desorption of water vapor has not been well understood butUnlike gas adsorption in coal which usually forms a single layer of adsorbed molecules, water vapor adsorptionThe model extended an energy balance approach for gas adsorption-induced coal swelling to water vapor

Keywords： multilayer adsorption     vapour pressure     coal shrinkage     relative humidity     permeability    

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Plasma enhanced chemical vapor deposition of excellent a-Si:H passivation layers for a-Si:H/c-Si heterojunctionsolar cells at high pressure and high power

Lei ZHAO,Wenbin ZHANG,Jingwei CHEN,Hongwei DIAO,Qi WANG,Wenjing WANG

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 85-91 doi: 10.1007/s11708-016-0437-3

Abstract: near the transition from the amorphous phase to the nanocrystalline phase by plasma enhanced chemical vaporHowever, at the low deposition pressure and low deposition power, such an a-Si:H layer can be only preparedintrinsic a-Si:H layers were prepared on n-type Cz c-Si substrates by 27.12 MHz PECVD at a high deposition pressureIt was found that an excellent a-Si:H passivation layer could be obtained in a very wide deposition pressure

Keywords： PECVD     high pressure and high power     a-Si:H microstructure     passivation     heterojunction solar cell    

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Separation of

Wei Hou, Qingjun Zhang, Aiwu Zeng

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1169-1184 doi: 10.1007/s11705-020-2018-6

Abstract: In this study, vapor recompression and heat integration assisted distillation arrangements with eitherthe low or high pressure in the reflux drum are proposed to reduce and/or eliminate the applicationThe high-pressure arrangement with vapor recompression and heat integration is the most attractive amongThe results demonstrate that the high-pressure configuration presents unique advantages in terms of thermodynamicefficiency compared to the low-pressure case.

Keywords： n-heptane/isobutanol     vapor recompression     heat integration     low and/or high-pressure options    

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Study of the robustness of a low-temperature dual-pressure process for removal of CO

Stefania Moioli, Laura A. Pellegrini, Paolo Vergani, Fabio Brignoli

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 209-225 doi: 10.1007/s11705-017-1688-1

Abstract: The growing use of energy by most of world population and the consequent increasing demand for energy are making unexploited low quality gas reserves interesting from an industrial point of view. To meet the required specifications for a natural gas grid, some compounds need to be removed from the sour stream. Because of the high content of undesired compounds (i.e., CO ) in the stream to be treated, traditional purification processes may be too energy intensive and the overall system may result unprofitable, therefore new technologies are under study. In this work, a new process for the purification of natural gas based on a low temperature distillation has been studied, focusing on the dynamics of the system. The robustness of the process has been studied by dynamic simulation of an industrial-scale plant, with particular regard to the performances when operating conditions are changed. The results show that the process can obtain the methane product with a high purity and avoid the solidification of carbon dioxide.

Keywords： CO2 capture     innovative process     cryogenic distillation     dynamic simulation     solid-liquid-vapor    

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Effects of Vapor Pressure and Super-Hydrophobic Nanocomposite Coating on Microelectronics Reliability Article

Xuejun Fan,Liangbiao Chen,C. P. Wong,Hsing-Wei Chu,G. Q. Zhang

Engineering 2015, Volume 1, Issue 3,   Pages 384-390 doi: 10.15302/J-ENG-2015034

Abstract:

Modeling vapor pressure is crucial for studying the moisture reliability of microelectronics, as highvapor pressure can cause device failures in environments with high temperature and humidity.To minimize the impact of vapor pressure, a super-hydrophobic (SH) coating can be applied on the exteriorIn this paper, we present several existing theories for predicting vapor pressure within microelectronicmodel, are described for predicting vapor pressure.

Keywords： vapor pressure     moisture     semiconductor reliability     microelectromechanical systems (MEMS)     super-hydrophobic    

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Heat transfer characteristics of high heat flux vapor chamber

Dongchuan MO, Shushen LU, Haoliang ZHENG, Chite CHIN,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 166-170 doi: 10.1007/s11708-009-0076-z

Abstract: the challenge of heat spreading in electronic products, highly efficient high heat flux heat transfer vaporA solid copper block with the same shape as the vapor chamber is used to compare the performance of thevapor chamber.The heat transfer characteristics of the vapor chamber are more superior to those of the copper blockthermal resistance of the test system is used to evaluate the heat transfer characteristics of the vapor

Keywords： high heat flux     vapor chamber (VC)     heat transfer characteristics     fast test    

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New refrigeration system using CO vapor-solid as refrigerant

HUANG Dongping, DING Guoliang, QUACK Hans

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 494-498 doi: 10.1007/s11708-008-0070-x

Abstract: A refrigerant must be in the vapor-liquid phase in a vapor-compression refrigeration system, thereforeA refrigeration system with CO vapor-solid particles as refrigerant is put forward, by which a temperatureAn adjustable nozzle, a sublimator, a high-pressure regulating valve and a low-pressure regulating valve

Keywords： refrigerant     adjustable     temperature     vapor-compression refrigeration     sublimator    

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Thermodynamic study on dynamic water and organic vapor sorption on amorphous valnemulin hydrochloride

Jinbo OUYANG, Jingkang WANG, Yongli WANG, Qiuxiang YIN, Hongxun HAO

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1,   Pages 94-104 doi: 10.1007/s11705-015-1460-3

Abstract: The sorption of water and organic vapors on valnemulin hydrochloride was determined by dynamic vaporThe adsorption-desorption behavior of water vapor and a series of organic vapors was investigated to

Keywords： valnemulin hydrochloride     water vapor     organic vapors     sorption     kinetics    

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of carbon nanotubes in a continuous inclined mobile-bed rotating reactor via the catalytic chemical vapor

Sophie L. Pirard, Sigrid Douven, Jean-Paul Pirard

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 280-289 doi: 10.1007/s11705-017-1635-1

Abstract: validation of a process for continuous production of carbon nanotubes (CNTs) via catalytic chemical vapor

Keywords： carbon nanotubes     catalytic chemical vapor deposition     inclined rotating reactor     industrial process     scaling-up    

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Shock wave of vapor-liquid two-phase flow

ZHAO Liangju, GAO Hong, TANG Jingwen, YUAN Yuexiang, WANG Fei

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 344-347 doi: 10.1007/s11708-008-0065-7

Abstract: The shock wave of vapor-liquid two-phase flow in a pressure-gain steam injector is studied by buildingThe results show that after the shock, the vapor is nearly completely condensed.The upstream Mach number and the volume ratio of vapor have a great effect on the shock.The pressure and Mach number of two-phase shock conform to the shock of ideal gas.

Keywords： available     mathematic     conform     vapor-liquid two-phase     analysis    

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Recovery of free volume in PIM-1 membranes through alcohol vapor treatment

Faiz Almansour, Monica Alberto, Rupesh S. Bhavsar, Xiaolei Fan, Peter M. Budd, Patricia Gorgojo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 872-881 doi: 10.1007/s11705-020-2001-2

Abstract: Our results show that an 8-hour methanol vapor treatment was sufficient to recover the original gas permeability

Keywords： polymer of intrinsic microporosity (PIM)     PIM-1     physical aging     gas separation     vapor-phase regeneration    

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Environmental and economic assessment of vegetable oil production using membrane separation and vapor

Weibin Kong, Qi Miao, Peiyong Qin, Jan Baeyens, Tianwei Tan

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 166-176 doi: 10.1007/s11705-017-1616-4

Abstract: Vapor recompression has potentials to reduce the heat loss in association with distillation and evaporationIn this study, we proved the possibility of combining membrane separation and vapor recompression to

Keywords： vegetable oil     solvent-extraction     membrane separation     vapor recompression     environmental and economic assessment    

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Mercury source zone identification using soil vapor sampling and analysis

David WATSON,Carrie MILLER,Brian LESTER,Kenneth LOWE,George SOUTHWORTH,Mary Anna BOGLE,Liyuan LIANG,Eric PIERCE

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 596-604 doi: 10.1007/s11783-014-0709-2

Abstract: Time-series sampling showed that Hg vapor concentrations were fairly stable over time, suggesting thatthe vapor phase Hg(0) was not being depleted and that sampling results were not sensitive to the soilHg(0) vapor data collected at over 200 push probe locations at 3 different release sites correlated veryVertical profiling of Hg(0) vapor concentrations conducted at two locations provided information on the

Keywords： push probe     spill     characterization     mapping     gas    

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catalyst for the selective hydroamination of cyclohexene with cyclohexylamine to dicyclohexylamine in the vapor

Jingbin Wen, Kuiyi You, Minjuan Chen, Jian Jian, Fangfang Zhao, Pingle Liu, Qiuhong Ai, He’an Luo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 654-665 doi: 10.1007/s11705-020-1973-2

Abstract: The mesoporous silicon sulfonic acid exhibits excellent catalytic performance and stability in the vapor

Keywords： mesoporous silicon sulfonic acid     catalytic hydroamination     cyclohexene     dicyclohexylamine     vapor phase    

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A novel cryogenic insulation system of hollow glass microspheres and self-evaporation vapor-cooled shield

Jianpeng ZHENG, Liubiao CHEN, Ping WANG, Jingjie ZHANG, Junjie WANG, Yuan ZHOU

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 570-577 doi: 10.1007/s11708-019-0642-y

Abstract: A novel cryogenic insulation system consisting of HGMs and a self-evaporating vapor-cooled shield (VCS

Keywords： liquid hydrogen storage     hollow glass microspheres (HGMs)     self-evaporation vapor-cooled shield (VCS)     thermodynamic    

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Title Author Date Type Operation

Modeling of coal swelling induced by water vapor adsorption

Zhejun PAN

Journal Article

Plasma enhanced chemical vapor deposition of excellent a-Si:H passivation layers for a-Si:H/c-Si heterojunctionsolar cells at high pressure and high power

Lei ZHAO,Wenbin ZHANG,Jingwei CHEN,Hongwei DIAO,Qi WANG,Wenjing WANG

Journal Article

Separation of

Wei Hou, Qingjun Zhang, Aiwu Zeng

Journal Article

Study of the robustness of a low-temperature dual-pressure process for removal of CO

Stefania Moioli, Laura A. Pellegrini, Paolo Vergani, Fabio Brignoli

Journal Article

Effects of Vapor Pressure and Super-Hydrophobic Nanocomposite Coating on Microelectronics Reliability

Xuejun Fan,Liangbiao Chen,C. P. Wong,Hsing-Wei Chu,G. Q. Zhang

Journal Article

Heat transfer characteristics of high heat flux vapor chamber

Dongchuan MO, Shushen LU, Haoliang ZHENG, Chite CHIN,

Journal Article

New refrigeration system using CO vapor-solid as refrigerant

HUANG Dongping, DING Guoliang, QUACK Hans

Journal Article

Thermodynamic study on dynamic water and organic vapor sorption on amorphous valnemulin hydrochloride

Jinbo OUYANG, Jingkang WANG, Yongli WANG, Qiuxiang YIN, Hongxun HAO

Journal Article

of carbon nanotubes in a continuous inclined mobile-bed rotating reactor via the catalytic chemical vapor

Sophie L. Pirard, Sigrid Douven, Jean-Paul Pirard

Journal Article

Shock wave of vapor-liquid two-phase flow

ZHAO Liangju, GAO Hong, TANG Jingwen, YUAN Yuexiang, WANG Fei

Journal Article

Recovery of free volume in PIM-1 membranes through alcohol vapor treatment

Faiz Almansour, Monica Alberto, Rupesh S. Bhavsar, Xiaolei Fan, Peter M. Budd, Patricia Gorgojo

Journal Article

Environmental and economic assessment of vegetable oil production using membrane separation and vapor

Weibin Kong, Qi Miao, Peiyong Qin, Jan Baeyens, Tianwei Tan

Journal Article

Mercury source zone identification using soil vapor sampling and analysis

David WATSON,Carrie MILLER,Brian LESTER,Kenneth LOWE,George SOUTHWORTH,Mary Anna BOGLE,Liyuan LIANG,Eric PIERCE

Journal Article

catalyst for the selective hydroamination of cyclohexene with cyclohexylamine to dicyclohexylamine in the vapor

Jingbin Wen, Kuiyi You, Minjuan Chen, Jian Jian, Fangfang Zhao, Pingle Liu, Qiuhong Ai, He’an Luo

Journal Article

A novel cryogenic insulation system of hollow glass microspheres and self-evaporation vapor-cooled shield

Jianpeng ZHENG, Liubiao CHEN, Ping WANG, Jingjie ZHANG, Junjie WANG, Yuan ZHOU

Journal Article