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Flow synthesis of a novel zirconium-based UiO-66 nanofiltration membrane and its performance in the removal

Feichao Wu, Yanling Wang, Xiongfu Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4, Pages 651-660 doi: 10.1007/s11705-019-1819-y

Abstract: a thin zirconium-based UiO-66 membrane was successfully prepared on an alumina hollow fiber tube by flowsynthesis, and was used in an attempt to remove -nitrophenol from water through a nanofiltration processTwo main factors, including flow rate and synthesis time, were investigated to optimize the conditionsUnder optimal synthesis conditions, a thin UiO-66 membrane of approximately 2 µm in thickness was fabricatedat a flow rate of 4 mL·h for 30 h.

Keywords： UiO-66 membrane flow synthesis nanofiltration p-nitrophenol removal

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Synthesis of poly(maleic acid alkylamide-

Jingjing XU, Jun XU, Jie SUN, Shili XING, Li LI, Xuhong GUO

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1, Pages 74-78 doi: 10.1007/s11705-010-0542-5

Abstract: To improve the flow ability of crude oil with high content of aromatic asphaltenes, new comb-type copolymersThe effect of copolymers on the flow ability of model waxy oil and crude oil were studied by rheological

Keywords： comb-polymers styrene paraffin crystallization flow ability

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Self-sacrificial templating synthesis of flower-like nickel phyllosilicates and its application as high-performance

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4, Pages 484-497 doi: 10.1007/s11705-021-2074-6

Abstract: The nanocomposites of flower-like nickel phyllosilicate particles incorporated into epoxy resin were fabricated via an in-situ mixing process. The flower-like nickel phyllosilicate particles were firstly synthesized using a mild self-sacrificial templating method, and the morphology and lamellar structure were examined carefully. Several properties of mechanical, thermal and tribological responses of epoxy nanocomposites were performed. It was demonstrated that adequate flower-like nickel phyllosilicate particles dispersed well in the matrix, and the nanocomposites displayed enhanced tensile strength and elastic modulus but decreased elongation at break as expected. In addition, friction coefficient and wear rate were increased first and then decreased along with the particle content, and showed the lowest values at a mass fraction of 5%. Nevertheless, the incorporated flower-like nickel phyllosilicate particles resulted in the continuously increasing thermal stability of epoxy resin (EP) nanocomposites. This study revealed the giant potential of flower-like particles in preparing high-quality EP nanocomposites.

Keywords： nickel phyllosilicate flow-like structure mechanical property thermal stability tribological performance

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Continuous-Flow Synthesis of the Nucleobase Unit of Remdesivir Article

Yongxing Guo, Minjie Liu, Meifen Jiang, Yuan Tao, Dang Cheng, Fen-Er Chen

Engineering 2023, Volume 21, Issue 2, Pages 92-100 doi: 10.1016/j.eng.2021.07.029

Abstract: remdesivir, 7-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine, was synthesized through five-step continuous flowchemistry, 7-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine was successfully produced through sequential flowUnder optimal flow conditions, 7-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine was obtained in 14.1% isolatedIn flow, the highly exothermic Vilsmeier–Haack and N-amination reactions involving hazardous andThe salient feature of this synthesis is that the workup procedures are fully integrated into the reaction

Keywords： Flow chemistry Continuous multistep synthesis Microreaction technology Reaction–separation integration

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An Eight-Step Continuous-Flow Total Synthesis of Vitamin B₁ Article

Meifen Jiang, Minjie Liu, Weijian Li, Yingqi Xia, Fener Chen

Engineering 2024, Volume 32, Issue 1, Pages 230-239 doi: 10.1016/j.eng.2023.01.016

Abstract: This study reports on an integrated eight-step continuous-flow synthesis of vitamin B₁ fromThe proposed continuous-flow process is based on advances in chemistry, engineering, and equipment designswitches, an exothermic reaction, and the prevention of side reactions, using various micro-channel flowThis eight-step continuous-flow protocol enables technology involving up to six of the key principlesHence, the application of flow technology is of paramount importance for improving security, reducing

Keywords： Vitamin B1 Continuous-flow synthesis Micro-reactor Continuous manufacturing

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Numerical study of internal flow field and flow passage improvement of an inlet particle separator

Florian PAOLI, Tong WANG

Frontiers in Energy 2011, Volume 5, Issue 4, Pages 386-397 doi: 10.1007/s11708-011-0156-8

Abstract: By performing gas flow field numerical simulations for several inlet Reynolds numbers (from 2 × 10to 9 × 10 ) and byflow ratios (from 10% to 20%), the present study has proposed to improve the flowNo particle has been included in the gas flow for a -epsilon turbulence model.Then the flow passage improvement method has focused on the separation area.in this study has succeeded in designing a shape which enhances the flow behavior.

Keywords： streamlines pressure losses flow passage improvement inlet particle separator (IPS)

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Automated synthesis of steady-state continuous processes using reinforcement learning

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2, Pages 288-302 doi: 10.1007/s11705-021-2055-9

Abstract: Automated flowsheet synthesis is an important field in computer-aided process engineering.The present work demonstrates how reinforcement learning can be used for automated flowsheet synthesisTherein, flowsheet synthesis is modelled as a game of two competing players.

Keywords： automated process synthesis flowsheet synthesis artificial intelligence machine learning reinforcement

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The Following-observing Method for Substance Flow Analysis

Lu Zhongwu

Strategic Study of CAE 2006, Volume 8, Issue 1, Pages 18-25

Abstract:

The fundamental argument set forth in the paper is that flow is the common feature of fluid flow andsubstance flow.(constant output of product), but also for unsteady substance flow (increasing or decreasing outputThe following-observing model of substance flow was explained by using iron flow diagram in the lifeof indexes of lead flow.

Keywords： methods of substance flow analysis following-observing method for substance flow analysis basic equationsfor substance flow analysis degree of unsteadiness of substance flow

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UPFC setting to avoid active power flow loop considering wind power uncertainty

Shenghu LI, Ting WANG

Frontiers in Energy 2023, Volume 17, Issue 1, Pages 165-175 doi: 10.1007/s11708-020-0686-z

Abstract: The active power loop flow (APLF) may be caused by impropriate network configuration, impropriate parameterThe power flow controllers, e.g., the unified power flow controller (UPFC), may be the reason and thepaper, the critical existence condition of the APLF is newly integrated into the simultaneous power flowapproaching to the critical existing condition, the integrated power flow needs less iterations andBesides, with wind power fluctuation, the interval power flow (IPF) is introduced into the integrated

Keywords： active power loop flow (APLF) unified power flow controller (UPFC) wind power uncertainty interval powerflow (IPF)

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Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3, Pages 372-375 doi: 10.1007/s11705-010-0570-1

Abstract: This result confirmed the catalytic effect of potassium carbonate on the synthesis of calcium carbide

Keywords： calcium carbide synthesis catalysis

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A novel flow electrode capacitive deionization device with spindle-shaped desalting chamber

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1800-y

Abstract:

● A spindle-shaped influent chamber was designed and equipped in FCDI system.

Keywords： Spindle-shaped chamber Desalination performance Flow electrode capacitive deionization

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Simulation of horizontal slug-flow pneumatic conveying with kinetic theory

GU Zhengmeng, GUO Liejin

Frontiers in Energy 2007, Volume 1, Issue 3, Pages 336-340 doi: 10.1007/s11708-007-0050-6

Abstract: Wavelike slug-flow is a representative flow type in horizontal pneumatic conveying.Kinetic theory was introduced to establish a 3D kinetic numerical model for wavelike slug gas-solid flowThe characteristics of the flow, such as pressure drop, air velocity distribution, slug length and settledindicate that kinetic theory can represent the physical characteristics of the non-suspension dense phase flowThe experiment in this paper introduced a new idea for the numerical calculation of slug-flow pneumatic

Keywords： velocity distribution detailed slug-flow gas-solid theory

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Study on a green synthesis of

Aixin WANG, Yuanbin SHE, Jing FAN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2, Pages 219-221 doi: 10.1007/s11705-009-0058-z

Abstract: A novel method for the synthesis of -oxo-bis[tetraarylporphyrinatoiron] ([TRPPFe] O) based on the reaction

Keywords： μ-oxo-bis[tetraarylphenylporphinatoiron] green synthesis water

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Characterization and comparison of organic functional groups effects on electrolyte performance for vanadium redox flow

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9, Pages 1221-1230 doi: 10.1007/s11705-023-2298-8

Abstract: The vanadium redox flow battery with a safe and capacity-controllable large-scale energy storage systemlimitations, as well as to investigate the effects of various organic functional groups on the vanadium redox flow

Keywords： vanadium redox flow battery functional groups organic additives energy density stability

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Experimental study on combined buoyant-thermocapillary flow along with rising liquid film on the surface

Manuel J. GOMES, Ning MEI

Frontiers in Energy 2020, Volume 14, Issue 1, Pages 114-126 doi: 10.1007/s11708-017-0483-5

Abstract: immersion of a horizontal metallic mesh tube in the liquid on combined buoyant and thermo-capillary flowThe combined flow occurs along with the rising liquid film flow on the surface of a horizontal metallicThese reveal two distinct flow patterns.with the rising liquid film flow.free surface and identified as the thermo-capillary (Marangoni) flow.

Keywords： rising liquid film combined flow thermo-capillary flow buoyant flow metallic mesh tube horizontal tube