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学者姓名:尤新强
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A systematic procedure is proposed for the design of a pressure-swing distillation (PSD) process for a ternary mixture. This procedure involves thermodynamic insight, global optimization, and heat integration. The aim of thermodynamic insight is to analyze the process feasibility and find all of the possible separation sequences via residue curve maps and the distillation boundaries. The global optimization for a total of 16 variables in three columns is conducted by multiobjective genetic algorithm (MOGA) with economy and environmental impact as objectives. In heat integration, a four-step heat integration MOGA method was first proposed to optimize the heat-integrated PSD process and the optimally integrated heat duty was achieved. The separation of a methanol/tetrahydrofuran/water ternary mixture is employed to elucidate the effectiveness of the proposed procedure. An energy-saving heat-integrated PSD process is obtained, and the total annual cost and CO2 emissions are reduced by 22.5 and 30.4% compared with the conventional PSD process.
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GB/T 7714 | Gu, Jinglian , Lu, Shang , Shi, Fengming et al. Economic and Environmental Evaluation of Heat-Integrated Pressure-Swing Distillation by Multiobjective Optimization [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2022 , 61 (25) : 9004-9014 . |
MLA | Gu, Jinglian et al. "Economic and Environmental Evaluation of Heat-Integrated Pressure-Swing Distillation by Multiobjective Optimization" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 61 . 25 (2022) : 9004-9014 . |
APA | Gu, Jinglian , Lu, Shang , Shi, Fengming , Wang, Xiujuan , You, Xinqiang . Economic and Environmental Evaluation of Heat-Integrated Pressure-Swing Distillation by Multiobjective Optimization . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2022 , 61 (25) , 9004-9014 . |
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Diffusion dialysis (DD) for acid recovery is significantly restricted by the poor acid dialysis coefficient (UH+$$ {U}_{{\mathrm{H}}<^>{+}} $$) of anion exchange membranes (AEMs). To overcome such problem, porous AEMs with extremely high free space volume have been fabricated herein based on porous membrane substrate, drawing inspiration from the dissolution-diffusion concept. Specifically, chloromethylated polyethersulfone (CMPES) has been used as the starting material to create the porous substrate via non-solvent phase inversion, then in-situ crosslinked and quaternized using ethylenediamine (EDA) and N-methylimidazole (NMI), respectively. In this study, the degrees of modification of EDA and NMI are controlled to adjust the microstructure and DD performance of the produced porous AEMs. The ideal AEM's UH+$$ {U}_{{\mathrm{H}}<^>{+}} $$ and acid/salt separation factor (S) are 4.3 and 2.6 times greater, respectively, than those of the commercial DF-120 membrane at the same condition. Additionally, it shows strong organic solvent resistance and thermal stability, and therefore demonstrate the potential for widespread use.
Keyword :
acid recovery acid recovery anion exchange membrane anion exchange membrane diffusion dialysis diffusion dialysis porous substrate porous substrate
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GB/T 7714 | You, Xinqiang , Chen, Jiaqi , Teng, Lin et al. Porous anion exchange membranes fabricated by phase inversion and in-situ modification for acid recovery [J]. | JOURNAL OF POLYMER SCIENCE , 2022 , 60 (21) : 3054-3063 . |
MLA | You, Xinqiang et al. "Porous anion exchange membranes fabricated by phase inversion and in-situ modification for acid recovery" . | JOURNAL OF POLYMER SCIENCE 60 . 21 (2022) : 3054-3063 . |
APA | You, Xinqiang , Chen, Jiaqi , Teng, Lin , Lin, Jiuyang , Lin, Xiaocheng . Porous anion exchange membranes fabricated by phase inversion and in-situ modification for acid recovery . | JOURNAL OF POLYMER SCIENCE , 2022 , 60 (21) , 3054-3063 . |
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Diffusion dialysis employing anion exchange membranes (AEMs) as an energy-efficient and environmentallyfriendly technology is highly desirable for acid recovery from acidic wastewater. Herein, porous AEMs with high acid permeability were tailored via a simple one-step route, in which porous chloromethyl polyethersulfone (CMPES) membrane substrate was modified by 1,4-dimethylpiperazine (DMP) to achieve simultaneous crosslinking and quaternization. The prepared piperazine-functionalized AEMs were characterized by morphology, ion exchange capacity, water uptake, water contact angle, stabilities and diffusion dialysis performance. Specifically, the optimal AEM (i.e., DPES-3h) applied in acid recovery from the simulated HCl (1.0 mol L- 1)/FeCl2 (0.2 mol L-1) mixed solution at 25 degrees C possessed a proton dialysis coefficient (UH+) of 43.2 x 10-3 m h-1 and an acid/salt separation factor (S) of 29.6, remarkably outperforming the previously reported state-of-the-art AEMs. Furthermore, the DPES-3h AEM showed excellent thermal stability and acid resistance, suggesting considerable durability for long-term application. These results indicated that our piperazine-functionalized porous AEMs appear to be promising for acid recovery from the acidic waste streams via diffusion dialysis.
Keyword :
Acid recovery Acid recovery Anion exchange membrane Anion exchange membrane Crosslinking and quaternization Crosslinking and quaternization Diffusion dialysis Diffusion dialysis Porous structure Porous structure
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GB/T 7714 | You, Xinqiang , Chen, Jiaqi , Pan, Shuai et al. Piperazine-functionalized porous anion exchange membranes for efficient acid recovery by diffusion dialysis [J]. | JOURNAL OF MEMBRANE SCIENCE , 2022 , 654 . |
MLA | You, Xinqiang et al. "Piperazine-functionalized porous anion exchange membranes for efficient acid recovery by diffusion dialysis" . | JOURNAL OF MEMBRANE SCIENCE 654 (2022) . |
APA | You, Xinqiang , Chen, Jiaqi , Pan, Shuai , Lu, Gang , Teng, Lin , Lin, Xiaocheng et al. Piperazine-functionalized porous anion exchange membranes for efficient acid recovery by diffusion dialysis . | JOURNAL OF MEMBRANE SCIENCE , 2022 , 654 . |
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Economically separating 1-propanol (NPA) from water is an emergent issue for producing pharmaceutical intermediates such as n-propyl acetate, n-propylamine and so on. In this work, fourionic liquids (ILs) 1ethyl-3-methylimidazolium thiocyanate ([EMIM][SCN]), 1-butyl-3methylimidazolium tetrafluoroborate ([BMIM][BF4]), 1,3-dimethylimidazolium methylsulfate ([MMIM][MS]), 1,3-dimethylimidazolium dimethylphosphate ([MMIM][DMP]) were introduced as potential entrainers for separating NPA-water azeotropic mixture. The results show that [MMIM][MS] is the most suitable entrainer compared with other ILs from the analysis of vapor-liquid equilibrium and relative volatilities. The extractive distillation process with the entrainer regeneration system of flash tank and stripper was employed and optimized by the two-step optimization method. The results show that total annual cost and energy consumption per product flow rate were reduced by 39.79% and 60.47% compared with literature. In addition, the efficiency indicator of extractive section, efficiency indicator of per tray in extractive section, carbon dioxide emissions were also selected as the evaluation index for selection of operating parameters and calculated for different cases. The CO2 emissions of the optimal design can be reduced by 60.98% from environmental aspect. (c) 2022 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
Keyword :
Energy saving Energy saving Evaluation indicator Evaluation indicator Extractive distillation (ED) Extractive distillation (ED) Ionic liquids (ILs) Ionic liquids (ILs) Optimal design Optimal design Process optimization Process optimization
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GB/T 7714 | You, Xinqiang , Zhao, Kai , Li, Ling et al. Ionic liquids as entrainer in extractive distillation for effectively separating 1-propanol-water azeotropic mixture [J]. | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2022 , 49 : 224-233 . |
MLA | You, Xinqiang et al. "Ionic liquids as entrainer in extractive distillation for effectively separating 1-propanol-water azeotropic mixture" . | CHINESE JOURNAL OF CHEMICAL ENGINEERING 49 (2022) : 224-233 . |
APA | You, Xinqiang , Zhao, Kai , Li, Ling , Qiu, Ting . Ionic liquids as entrainer in extractive distillation for effectively separating 1-propanol-water azeotropic mixture . | CHINESE JOURNAL OF CHEMICAL ENGINEERING , 2022 , 49 , 224-233 . |
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Predicting the permeate flux is critical for evaluating and optimizing the performance of the forward osmosis (FO) process. However, the solution diffusion models have poor applicability in accessing the FO process. Recently, the data-driven eXtreme Gradient Boosting (XGBoost) algorithm has been proven to be effective in processing structure data in engineering problems and has not been utilized to assess the FO process. Herein, a combination of the XGBoost model with a genetic algorithm (GA) was first proposed to predict the permeate flux, highlighting its superiority in the FO process through comparison of the support vector regression (SVR) model, the artificial neural network (ANN), and the multiple linear regression (MLR). Moreover, the performance of these models was optimized by tuning hyperparameters with a genetic algorithm (GA) and compared via Taylor Diagram. Among these machine learning (ML) models, the GA-based XGBoost model is superior to the other three models in terms of mean square error (MSE, 2.7326) and coefficient of determination (R2, 0.9721) on the test data, and its prediction power was compared to that of the solution diffusion (SD) model in the literature. Finally, further insight into the feature importance that affects the permeate flux in the FO process was examined by utilizing the SHapley Additive exPlanations (SHAP) to estimate the contribution value of various variables. The results demonstrated that the XGBoost model could predict the permeate flux in the FO system with high accuracy and good generalization ability for the given data set and even on the unseen data. Furthermore, the findings of the SHAP method show that the osmotic pressure difference, the osmotic pressure difference of draw solution and FS solution, the crossflow velocity of the feed solution and draw solution, and the water permeability coefficient have a significant impact on water flux.
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GB/T 7714 | Shi, Fengming , Lu, Shang , Gu, Jinglian et al. Modeling and Evaluation of the Permeate Flux in Forward Osmosis Process with Machine Learning [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2022 . |
MLA | Shi, Fengming et al. "Modeling and Evaluation of the Permeate Flux in Forward Osmosis Process with Machine Learning" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2022) . |
APA | Shi, Fengming , Lu, Shang , Gu, Jinglian , Lin, Jiuyang , Zhao, Chengxi , You, Xinqiang et al. Modeling and Evaluation of the Permeate Flux in Forward Osmosis Process with Machine Learning . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2022 . |
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In the sustainability concept framework, wastewater highly loaded with acid is considered as a valuable resource, rather than a waste. Diffusion dialysis employing anion exchange membranes is a feasible solution to extracting acid from this waste stream. However, conventional anion exchange membranes have dense spatial structures with no observable pores even at nanoscale, which limits the transfer of protons. Porous anion exchange membranes provide a practical avenue to enhance the proton transfer due to their unique spatial structure. In this study, novel porous anion exchange membranes were designed by one-step crosslinking and quaternization of porous brominated poly (phenylene oxide) membrane substrate by 1, 4-diazabicyclo [2.2.2] octane. The resultant porous anion exchange membranes showed a high performance in acid recovery by diffusion dialysis, due to their uniquely tailored microstructures including an extremely thin selective layer and high free space volume. Specifically, the optimal anion exchange membrane possessed an acid dialysis coefficient of 0.066 +/- 0.003 m h(-1) and an acid/salt separation factor of 96.9 +/- 2.5 in the HCl/FeCl2 mixture solution, outperforming the commercial anion exchange membrane (i.e., DF-120, acid dialysis coefficient of 0.0085 m h(-1) and acid/salt separation factor of 18.5). This study demonstrates the great potential in constructing advanced anion exchange membranes at large scale for efficient acid recovery from highly acidic wastewater to support environment sustainability.
Keyword :
Acid recovery Acid recovery Crosslinking and quaternization Crosslinking and quaternization Diffusion dialysis Diffusion dialysis Porous anion exchange membrane Porous anion exchange membrane Sustainability Sustainability
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GB/T 7714 | Lin, Jiuyang , Huang, Junming , Wang, Jing et al. High-performance porous anion exchange membranes for efficient acid recovery from acidic wastewater by diffusion dialysis [J]. | JOURNAL OF MEMBRANE SCIENCE , 2021 , 624 . |
MLA | Lin, Jiuyang et al. "High-performance porous anion exchange membranes for efficient acid recovery from acidic wastewater by diffusion dialysis" . | JOURNAL OF MEMBRANE SCIENCE 624 (2021) . |
APA | Lin, Jiuyang , Huang, Junming , Wang, Jing , Yu, Junwei , You, Xinqiang , Lin, Xiaocheng et al. High-performance porous anion exchange membranes for efficient acid recovery from acidic wastewater by diffusion dialysis . | JOURNAL OF MEMBRANE SCIENCE , 2021 , 624 . |
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An improved model for calculating physical properties and phase behavior of confined fluids (oil and gas resources in shale reservoirs) by considering adsorption film theory was developed based on the square-well chain-like fluid with variable well-width range (SWCF-VR) equation of state. The accuracy of the improved model is greatly increased via comparing the experimental data of argon in cylindrical pores at 87.3 K. The physical properties of pure component hydrocarbons, mixture hydrocarbons, and real Bakken oils in nanopores were predicted and analyzed. The results show that the properties of confined fluids are very different from those of bulk-phase fluids, where confinement decreases the gas-liquid phase equilibrium constant (K-value), bubble point pressure, and interfacial tension of the fluid. The presence of the adsorption film further decreases the K-value and bubble point and increases the capillary pressure, and these properties change more significantly in pore radius with only a few nanometers. The results demonstrate the importance of improving the accuracy in calculating the properties and phase behaviors of confined fluids and also draw the necessity of considering the adsorption film theory.
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GB/T 7714 | Fang, Fei , Gu, Jinglian , You, Xinqiang . Improved Model for Calculating Physical Properties of Confined Fluid by Considering Adsorption Film Theory Based on the SWCF-VR Equation of State [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2021 , 60 (35) : 13094-13106 . |
MLA | Fang, Fei et al. "Improved Model for Calculating Physical Properties of Confined Fluid by Considering Adsorption Film Theory Based on the SWCF-VR Equation of State" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 60 . 35 (2021) : 13094-13106 . |
APA | Fang, Fei , Gu, Jinglian , You, Xinqiang . Improved Model for Calculating Physical Properties of Confined Fluid by Considering Adsorption Film Theory Based on the SWCF-VR Equation of State . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2021 , 60 (35) , 13094-13106 . |
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本发明涉及一种单塔萃取精馏分离四氢呋喃‑水混合物的装置,包括萃取精馏塔、冷凝器、再沸器、回流罐和回流泵。本发明使用吡咯烷酮作为萃取剂,通过单个萃取精馏塔分离四氢呋喃和水的混合物。萃取剂从萃取精馏塔上部进料,原料四氢呋喃‑水混合物从萃取精馏塔下部进料,经过多级汽液传质,塔顶得到四氢呋喃产品,塔釜采出废水。本发明单个塔实现四氢呋喃‑水体系的分离,解决了四氢呋喃‑水体系在常压下形成共沸物而难分离的问题,省去了常规的溶剂回收塔,具有工艺简单、能耗低、回收率高等优点。
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GB/T 7714 | 黄智贤 , 任恒聪 , 尤新强 et al. 单塔萃取精馏分离四氢呋喃-水混合物的装置及其方法 : CN202010062136.0[P]. | 2020/1/20 . |
MLA | 黄智贤 et al. "单塔萃取精馏分离四氢呋喃-水混合物的装置及其方法" : CN202010062136.0. | 2020/1/20 . |
APA | 黄智贤 , 任恒聪 , 尤新强 , 王清莲 , 王晓达 , 王红星 et al. 单塔萃取精馏分离四氢呋喃-水混合物的装置及其方法 : CN202010062136.0. | 2020/1/20 . |
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Extractive distillation processes enable the separation of non-ideal mixtures, including minimum or maximum boiling azeotropes and low relative volatility mixtures. Unlike azeotropic distillation, the entrainer fed at another location than the main mixture induces an extractive section within the column. A general feasibility criterion shows that intermediate and light entrainers and heterogeneous entrainers are suitable along common heavy entrainers. Entrainer selection rules rely upon selectivity ratios and residue curve map (rcm) topology including univolatility curves. For each type of entrainer, we define extractive separation classes that summarize feasibility regions, achievable products and entrainer - feed flow rate ratio limits. Case studies are listed as Supplementary materials. Depending on the separation class, a direct or an indirect split column configuration will allow to obtain a distillate product or a bottom product, which is usually a saddle point of rcm. Batch and continuous process operations differ mainly by the feasible ranges for the entrainer - feed flow rate ratio and reflux ratio. The batch process is feasible under total reflux and can orient the still path by changing the reflux policy. Optimisation of the extractive process must systematically consider the extractive column along with the entrainer regeneration column that requires energy and may limit the product purity in the extractive column through recycle. For the sake of reducing the energy cost and the total cost, pressure change can be beneficial as it affects volatility, or new process structures can be devised, namely heat integrated extractive distillation, extractive divided wall column or processes with preconcentrator. (C) 2018 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
Keyword :
Batch extractive distillation Batch extractive distillation Continuous extractive distillation Continuous extractive distillation Entrainer Entrainer Extractive column configuration Extractive column configuration Heterogeneous extractive distillation Heterogeneous extractive distillation Operation and control Operation and control
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GB/T 7714 | Gerbaud, Vincent , Rodriguez-Donis, Ivonne , Hegely, Laszlo et al. Review of extractive distillation. Process design, operation, optimization and control [J]. | CHEMICAL ENGINEERING RESEARCH & DESIGN , 2019 , 141 : 229-271 . |
MLA | Gerbaud, Vincent et al. "Review of extractive distillation. Process design, operation, optimization and control" . | CHEMICAL ENGINEERING RESEARCH & DESIGN 141 (2019) : 229-271 . |
APA | Gerbaud, Vincent , Rodriguez-Donis, Ivonne , Hegely, Laszlo , Lang, Peter , Denes, Ferenc , You, XinQiang . Review of extractive distillation. Process design, operation, optimization and control . | CHEMICAL ENGINEERING RESEARCH & DESIGN , 2019 , 141 , 229-271 . |
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The capillary effect caused by the confinement in porous media leads to strongly differences in the physical properties and phase equilibrium of the fluids apart from the bulk phase. A joint model was established for investigating the capillary effect by combining Young-Laplace equation and the square well chain-like fluid with variable well-width range (SWCF-VR) equation of state. The Young-Laplace equation supplies a simple way to relate the capillarity with the bulk properties, and the SWCF-VR equation was able to accurately describe the equilibrium of fluid in bulk phase compared with the Peng-Robinson equation. The model could predict well the phase equilibrium when comparing with experimental data in bulk, and consequently the results for confined fluids. The model was verified by experimental and computer simulation data. Further, the binary adjustable parameters of SWCF-VR EOS used in this study could be updated once the experimental data in confined situation are reported. In addition, the model could be used for complex component when experimental data are unavailable since the four parameters of EOS could be predicted. (C) 2019 Elsevier B.V. All rights reserved.
Keyword :
Capillarity Capillarity Confined fluid Confined fluid Interfacial tension Interfacial tension SWCF-VR equation SWCF-VR equation Vapor-liquid equilibrium Vapor-liquid equilibrium
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GB/T 7714 | You, Xinqiang , Yuan, Shuai , Huang, Zhixian et al. A joint model for calculating capillary pressure of confined fluid based on the SWCF-VR equation of state [J]. | FLUID PHASE EQUILIBRIA , 2019 , 498 : 59-71 . |
MLA | You, Xinqiang et al. "A joint model for calculating capillary pressure of confined fluid based on the SWCF-VR equation of state" . | FLUID PHASE EQUILIBRIA 498 (2019) : 59-71 . |
APA | You, Xinqiang , Yuan, Shuai , Huang, Zhixian , Qiu, Ting . A joint model for calculating capillary pressure of confined fluid based on the SWCF-VR equation of state . | FLUID PHASE EQUILIBRIA , 2019 , 498 , 59-71 . |
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