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学者姓名:尤新强
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根据学情分析,确立了“实例引导创新”的思路,对理工科课程设计贯通低、中、高阶认知的教学方案,并利用实际工程案例引导同学们进行创新。引进系统性教学资源和碎片式知识点引发学生学习兴趣,结合工程案例和实验技术培养学生动手能力,例如蒸馏操作中的反应精馏实例,培养学生责任心与专业信念,使用创新思维范式引导学生进行自组织学习、主动构建案例,而学生的创新成果又纳入课程内容,促进教学迭代优化。
Keyword :
创新思维 创新思维 实例引导 实例引导 教学迭代 教学迭代
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GB/T 7714 | 葛雪惠 , 尤新强 , 李玲 et al. 基于实例引导创新的《化工原理》教学改革与实践 [J]. | 当代化工研究 , 2024 , 3 (05) : 158-160 . |
MLA | 葛雪惠 et al. "基于实例引导创新的《化工原理》教学改革与实践" . | 当代化工研究 3 . 05 (2024) : 158-160 . |
APA | 葛雪惠 , 尤新强 , 李玲 , 叶长燊 , 杨臣 . 基于实例引导创新的《化工原理》教学改革与实践 . | 当代化工研究 , 2024 , 3 (05) , 158-160 . |
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高校化学化工类实验废弃物呈逐年增长趋势,易造成环境污染,影响师生身体健康,其安全处理也增加了学校的财政负担。解决以上问题的关键是有效降低化学化工类实验废弃物的产生量。鉴于此,本文探讨了减少高校化学化工类实验废弃物的措施,包括开发绿色化学化工实验、推广微化学化工实验、开发化学化工类废弃物回收实验、推广虚拟仿真实验、建立资源共享平台和开发信息化管理系统。
Keyword :
减量措施 减量措施 化学化工类实验废弃物 化学化工类实验废弃物 高校 高校
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GB/T 7714 | 谷静连 , 王秀娟 , 尤新强 et al. 浅谈高校化学化工类实验废弃物减量措施 [J]. | 当代化工研究 , 2022 , 3 (13) : 135-137 . |
MLA | 谷静连 et al. "浅谈高校化学化工类实验废弃物减量措施" . | 当代化工研究 3 . 13 (2022) : 135-137 . |
APA | 谷静连 , 王秀娟 , 尤新强 , 李玲 , 施小芳 . 浅谈高校化学化工类实验废弃物减量措施 . | 当代化工研究 , 2022 , 3 (13) , 135-137 . |
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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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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) 1-ethyl-3-methylimidazolium thiocyanate ([EMIM][SCN]), 1-butyl-3-methylimidazolium 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 effi-ciency 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 environmen-tal 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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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 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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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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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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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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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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