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Integration of molecular dynamic simulation and free volume theory for modeling membrane VOC/gas separation

Bo Chen, Yan Dai, Xuehua Ruan, Yuan Xi, Gaohong He

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 296-305 doi: 10.1007/s11705-018-1701-3

Abstract: Gas membrane separation process is highly unpredictable due to interacting non-ideal factors, such asThis work proposes a method for modeling a membrane separation process for volatile organic compoundsA lab-scale hollow fiber membrane module was prepared for the model validation and evaluation.The proposed method provides an efficient tool for process engineering to simulate the membrane recoveryprocess.

Keywords： membrane vapor separation     membrane process modeling     process engineering     free volume theory     volatile organic    

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A review on membrane distillation in process engineering: design and exergy equations, materials and

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 592-613 doi: 10.1007/s11705-021-2105-3

Abstract: Further advances in the field of desalination can be provided by innovative processes such as membraneenhanced research activities and allowed a deeper understanding of mass and heat transport phenomena, membranewetting, polarization phenomena and have encouraged the use of materials particularly suitable for membraneThis work summarizes recent developments in the field of membrane distillation, studies for module lengthoptimization, commercial membrane modules developed, recent patents and advancement of membrane material

Keywords： membrane distillation     recent developments     heat and mass transfer     wetting     membrane material    

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Progress in membrane distillation crystallization: Process models, crystallization control and innovative

Xiaobin Jiang, Linghan Tuo, Dapeng Lu, Baohong Hou, Wei Chen, Gaohong He

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 647-662 doi: 10.1007/s11705-017-1649-8

Abstract: Membrane distillation crystallization (MDC) is a promising hybrid separation process that has been appliedThis review focuses on the development of MDC process models and on crystallization control strategies

Keywords： membrane distillation crystallization     mathematics model     nucleation     separation     hybrid process    

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A critical review on thermodynamic mechanisms of membrane fouling in membrane-based water treatment process

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1729-6

Abstract:

● Fundamentals of membrane fouling are comprehensively reviewed.

Keywords： Membrane fouling     Thermodynamic mechanism     XDLVO theory     Flory-Huggins theory     Fouling migration    

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A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 3,   Pages 272-279 doi: 10.1007/s11783-010-0234-x

Abstract: A hybrid membrane process for simultaneous sludge thickening and digestion (MSTD) was studied.showed that biopolymers and cations of biomass were gradually released to the bulk solution during the processdemand, soluble microbial products, viscosity, and MLSS had significant positive correlations with the membranepolymeric substances, polysaccharides, and proteins extracted from biomass had negative impacts on membrane

Keywords： membrane filtration     sludge digestion     sludge thickening     waste activated sludge    

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Hierarchical modeling of stochastic manufacturing and service systems

Zhe George ZHANG, Xiaoling YIN

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 295-303 doi: 10.15302/J-FEM-2017047

Abstract: Such a classification unifies stochastic modeling theory.Micro-scopic models are based on quasi-birth-and-death process because of the phase-type distributedSuch models are appropriate for modeling the detailed operations of a manufacturing system with relativelyThese high-level models are appropriate for modeling large-scale service systems with many servers, suchThis review will help practitioners select the appropriate level of modeling to enhance their understanding

Keywords： stochastic modeling     QBD process     PH distribution     heavy traffic limits     diffusion process    

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Analyzing the energy intensity and greenhouse gas emission of Canadian oil sands crude upgrading through processmodeling and simulation

Anton ALVAREZ-MAJMUTOV,Jinwen CHEN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 212-218 doi: 10.1007/s11705-014-1424-z

Abstract: The analysis, which was based on a robust process model of the entire process, was constructed in Aspenupgrading schemes in order to generate a detailed inventory of the required energy and utility inputs: process

Keywords： Oil sands crude upgrading     hydroconversion     process modeling     greenhouse gas emissions    

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Purification and concentration of gluconic acid from an integrated fermentation and membrane process

Parimal Pal, Ramesh Kumar, Subhamay Banerjee

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 152-163 doi: 10.1007/s11705-018-1721-z

Abstract: optimize the purification and concentration of gluconic acid from fermentation broth using an integrated membraneThe optimum operating conditions, such as trans-membrane pressure (TMP), pH, cross-flow rate (CFR) andperforming one was then used for downstream purification of gluconic acid in a flat sheet cross-flow membraneh ), this membrane retained more than 85% of the unconverted glucose from the fermentation broth andUsing response surface methods to optimize this green nanofiltration process is an effective way of controlling

Keywords： gluconic acid     optimized nanofiltration     green processing     process intensification    

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Modeling of Ce(IV) transport through a dispersion flat combined liquid membrane with carrier P507

Liang PEI,Liming WANG,Zhanying MA

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 503-509 doi: 10.1007/s11783-013-0540-1

Abstract: for the transport of Ce(IV) from hydrochloric acid solutions through dispersion flat combined liquid membranehexyl phosphonic acid-mono-2-ethyl hexyl ester (P507) as the carrier, dissolved in kerosene as the membraneThis process of facilitated transport, based on membrane technology, is a variation on the conventionalThe diffusion coefficient of Ce(IV) in the membrane and the thickness of diffusion layer between feedphase and membrane phase are obtained and the values are 6.31 × 10 m ·s and 31.2 μm, respectively.

Keywords： Dispersion flat combined liquid membrane (DFCLM)     dispersion phase     feed phase     2-ethyl hexyl phosphonic    

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Techno-economic characteristics of wastewater treatment plants retrofitted from the conventional activated sludge processto the membrane bioreactor process

Frontiers of Environmental Science & Engineering doi: 10.1007/s11783-021-1483-6

Abstract: wastewater treatment plants (WWTPs) are being retrofitted from the conventional activated sludge (CAS) processto the membrane bioreactor (MBR) process, the debate on the techno-economy of MBR vs.

Keywords： Membrane bioreactor (MBR)     Conventional activated sludge (CAS)     Cost-benefit analysis     Data envelopment    

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A neural network-based production process modeling and variable importance analysis approach in corn

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3,   Pages 358-371 doi: 10.1007/s11705-022-2190-y

Abstract: Corn to sugar process has long faced the risks of high energy consumption and thin profits.However, it’s hard to upgrade or optimize the process based on mechanism unit operation models due toIn this paper, a neural network-based production process modeling and variable importance analysis approachdimensionality reduction, multilayer perceptron/convolutional neural network/recurrent neural network based modelingThe major contributions derived from this work are of significant aid in process simulation model with

Keywords： big data     corn to sugar factory     neural network     variable importance analysis    

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Membrane Crystallization for Process Intensification and Control: A Review Review

Xiaobin Jiang, Yushan Shao, Lei Sheng, Peiyu Li, Gaohong He

Engineering 2021, Volume 7, Issue 1,   Pages 50-62 doi: 10.1016/j.eng.2020.06.024

Abstract: Accurate nucleation and growth process control are vitally important but difficult.A novel controlling technology that can simultaneously intensify the overall crystallization processMembrane crystallization (MCr), which has progressed significantly in recent years, is a hybrid technologyillustrates the basic concepts of MCr and its promising applications for crystallization control and processintensification, including a state-of-the-art review of key MCr-utilized membrane materials, process

Keywords： Membrane crystallization     Nucleation     Process control     Process intensification    

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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: For comparison, a PSA process and a membrane separation process were also used individually for hydrogenThe PSA-membrane hybrid process produced hydrogen that was 99.98% pure with a recovery of 91.71%, whereasthe membrane-PSA hybrid process produced hydrogen that was 99.99% pure with a recovery of 91.71%.The PSA-membrane hybrid process achieved higher total H recoveries than the membrane-PSA hybrid processMeanwhile, the membrane-PSA hybrid process achieved a higher total H recovery (97.06%) than PSA-membrane

Keywords： hydrogen purification     PSA     membrane separation     hybrid process    

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Electrocoagulation process for the treatment of metal-plating wastewater: Kinetic modeling and energy

Fatih Ilhan, Kubra Ulucan-Altuntas, Yasar Avsar, Ugur Kurt, Arslan Saral

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1152-1

Abstract: Adsorption capacities based on kinetic modeling were observed as Cr>Cu>Ni>Zn.The effects of the pH adjustment on removal before and after the electrocoagulation process were investigatedIn addition, the pH adjustment after the electrocoagulation process using iron electrodes, which areIn the process where kinetic modeling was applied, it was observed that the heavy metal removal mechanismwas not solely due to the collapse of heavy metals at high pH values, and with this modeling, it was

Keywords： Electrochemical treatment     Heavy metals     Kinetic modeling     Pseudo first order kinetic     Pseudo second order    

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Performance of bioferric-submerged membrane bioreactor for dyeing wastewater treatment

ZOU Haiyan, XI Danli

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 374-380 doi: 10.1007/s11783-007-0064-7

Abstract: hydroxide to sludgemixed liquor in an aeration tank of a conventional activated sludge processes (bioferric processand to mitigate membrane fouling.Bioferric process and SMBR were combined to create a novel process called Bioferric-SMBR.Bioferric-SMBR showed potential superiority, which could enhance removal efficiency, reduce membraneThe trans-membrane pressure of Bioferric-SMBR was only 36% of that in common SMBR while its membrane

Keywords： hydroxide     surplus     aeration     SMBR     Bioferric process    

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Title Author Date Type Operation

Integration of molecular dynamic simulation and free volume theory for modeling membrane VOC/gas separation

Bo Chen, Yan Dai, Xuehua Ruan, Yuan Xi, Gaohong He

Journal Article

A review on membrane distillation in process engineering: design and exergy equations, materials and

Journal Article

Progress in membrane distillation crystallization: Process models, crystallization control and innovative

Xiaobin Jiang, Linghan Tuo, Dapeng Lu, Baohong Hou, Wei Chen, Gaohong He

Journal Article

A critical review on thermodynamic mechanisms of membrane fouling in membrane-based water treatment process

Journal Article

A hybrid membrane process for simultaneous thickening and digestion of waste activated sludge

Zhiwei WANG, Qiaoying WANG, Zhichao WU, Xinhua WANG,

Journal Article

Hierarchical modeling of stochastic manufacturing and service systems

Zhe George ZHANG, Xiaoling YIN

Journal Article

Analyzing the energy intensity and greenhouse gas emission of Canadian oil sands crude upgrading through processmodeling and simulation

Anton ALVAREZ-MAJMUTOV,Jinwen CHEN

Journal Article

Purification and concentration of gluconic acid from an integrated fermentation and membrane process

Parimal Pal, Ramesh Kumar, Subhamay Banerjee

Journal Article

Modeling of Ce(IV) transport through a dispersion flat combined liquid membrane with carrier P507

Liang PEI,Liming WANG,Zhanying MA

Journal Article

Techno-economic characteristics of wastewater treatment plants retrofitted from the conventional activated sludge processto the membrane bioreactor process

Journal Article

A neural network-based production process modeling and variable importance analysis approach in corn

Journal Article

Membrane Crystallization for Process Intensification and Control: A Review

Xiaobin Jiang, Yushan Shao, Lei Sheng, Peiyu Li, Gaohong He

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

Electrocoagulation process for the treatment of metal-plating wastewater: Kinetic modeling and energy

Fatih Ilhan, Kubra Ulucan-Altuntas, Yasar Avsar, Ugur Kurt, Arslan Saral

Journal Article

Performance of bioferric-submerged membrane bioreactor for dyeing wastewater treatment

ZOU Haiyan, XI Danli

Journal Article