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Kinetic model for hydroisomerization reaction of C-aromatics

XU Ouguan, SU Hongye, JIN Xiaoming, CHU Jian

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 10-16 doi: 10.1007/s11705-008-0015-2

Abstract: Based on the reported reaction networks, a novel six-component hydroisomerization reaction network witha new lumped species including C-naphthenes and C-paraffins is proposed and a kinetic model for a commercialAn empirical catalyst deactivation function is incorporated into the model accounting for the loss inThe Runge-Kutta method is used to solve the ordinary differential equations of the model.The reaction kinetic parameters are benchmarked with several sets of balanced plant data and estimated

Keywords： ordinary differential     Runge-Kutta     catalyst deactivation     C-paraffins     optimization    

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Modified landfill gas generation rate model of first-order kinetics and two-stage reaction

Jiajun CHEN , Hao WANG , Na ZHANG ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 313-319 doi: 10.1007/s11783-009-0025-4

Abstract: The first-order kinetics and two-stage reaction (FKTSR) model of the LFG generation rate includes mechanismsof the nutrient balance for biochemical reaction in two main stages.The model calibration was then calculated by using the experimental data.The main parameters of the modified FKTSR model, including the LFG production potential (), the reactionrate constant in the first stage (), and the reaction rate constant in the second stage () of 64.746&

Keywords： landfill gas (LFG)     generation rate model     first-order kinetics     two-stage reaction     outflow function    

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Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 909-920 doi: 10.1007/s11705-021-2100-8

Abstract: An energy minimum multiscale model was adjusted to simulate the mesoscale structure of the flue gas desulfurizationThe obtained results revealed that the spout morphology simulated by the adjusted mesoscale drag modelIn addition, more thorough gas radial mixing was achieved using the adjusted mesoscale drag model.was 1.5 times higher than that obtained by the homogeneous drag model during the simulation of waterFor the desulfurization reaction, the experimental desulfurization efficiency was 75.03%, while the desulfurization

Keywords： adjusted mesoscale drag model     particle image velocimetry     water vaporization     desulfurization reaction    

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dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1149-1163 doi: 10.1007/s11705-021-2096-0

Abstract: Although several reaction mechanisms have been proposed, the detailed steps are still ambiguous, andTo improve our understanding of the mechanisms of carbon dioxide photoreduction, a multiphysics modelThe novelty of this work is the computational fluid dynamic model combined with the novel carbon dioxidephotoreduction intrinsic reaction kinetic model, which was built based on three-steps, namely gas adsorptionand Beer-Lambert model.

Keywords： carbon dioxide photoreduction     computational fluid dynamic simulation     kinetic model     Langmuir adsorption    

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Prediction of falling weight deflectometer parameters using hybrid model of genetic algorithm and adaptive

Frontiers of Structural and Civil Engineering   Pages 812-826 doi: 10.1007/s11709-023-0940-7

Abstract: engineering to measure and evaluate the physical properties of pavements, such as the modulus of the subgrade reactionIn this study, we developed a novel hybrid artificial intelligence model, i.e., a genetic algorithm (The performance of the novel ANFIS-GA model was compared to that of other benchmark models, namely logisticThe results indicated that the ANFIS-GA model was the best at predicting Y1 (R = 0.945) and Y2Therefore, the ANFIS-GA model can be used to accurately predict Y1 and Y2 based on easily measured parameters

Keywords： falling weight deflectometer     modulus of subgrade reaction     elastic modulus     metaheuristic algorithms    

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Kinetic study of hydrodesulfurization of coker gas oil in a slurry reactor

Haiding XIANG, Tiefeng WANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 139-144 doi: 10.1007/s11705-013-1323-8

Abstract: All the experiments were carried out in an autoclave using a NiMo/Al O catalyst at reaction temperatureA macro reaction kinetic model was established for the HDS of CGO in the slurry reactor.

Keywords： coker gas oil     hydrodesulfurization     slurry reactor     reaction kinetic model    

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Multiscale Homogenization Analysis of Alkali–Silica Reaction (ASR) Effect in Concrete Article

Roozbeh Rezakhani, Mohammed Alnaggar, Gianluca Cusatis

Engineering 2019, Volume 5, Issue 6,   Pages 1139-1154 doi: 10.1016/j.eng.2019.02.007

Abstract:

The alkali–silica reaction (ASR) is one of the major long-term deterioration mechanisms occurringASR is a chemical reaction between the silica existing inside the aggregate pieces and the alkali ionsThis chemical reaction produces ASR gel, which imbibes additional water, leading to gel swelling.In this study, ASR damage in concrete is considered within the lattice discrete particle model (LDPM), a mesoscale mechanical model that simulates concrete at the scale of the coarse aggregate pieces.

Keywords： Multiscale homogenization     Representative volume element     Alkali–silica reaction     Lattice discrete particlemodel    

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Thermodynamic analysis of reaction pathways and equilibrium yields for catalytic pyrolysis of naphtha

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1700-1712 doi: 10.1007/s11705-022-2207-6

Abstract: Herein, for a better catalyst design and operation parameters optimization, the reaction pathways andThe results revealed that the thermodynamically favorable reaction pathways for n/iso-paraffinsThe results are thus useful as a direction for future catalyst improvements, facilitating superior reaction

Keywords： naphtha     catalytic pyrolysis     reaction pathway     equilibrium yield    

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Preparation of manganese (III) acetylacetonate nanoparticles via an environmentally benign route

M. S. Shalaby, H. Abdallah

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 329-337 doi: 10.1007/s11705-013-1339-0

Abstract: were prepared by a simple and environmentally benign route based on hydrolysis of KMnO followed by reactionWe further proposed a mathematical model, and the predicted results from model were in good agreement

Keywords： green chemistry     manganese (III) acetylacetonate     reaction conversion     Mathematical model    

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Effect of pressure on gasification reactivity of three Chinese coals with different ranks

Chunyu LI, Jiantao ZHAO, Yitian FANG, Yang WANG

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 385-393 doi: 10.1007/s11705-010-0501-1

Abstract: The gasification reaction is controlled by pore diffusion, the rate decreases with increasing total systemThe experimental results could be well described by the shrinking core model for three chars during steamThe values of reaction order with steam were 0.49, 0.46, 0.43, respectively.Meanwhile, the values of reaction order with CO were 0.31, 0.28, 0.26, respectively.

Keywords： coal     gasification     pressure     reaction order     shrinking core model    

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Reaction kinetics of CaC

Renxing Wang,Zhenyu Liu,Leiming Ji,Xiaojin Guo,Xi Lin,Junfei Wu,Qingya Liu

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 4,   Pages 517-525 doi: 10.1007/s11705-016-1585-z

Abstract: A number of studies have reported the reaction kinetics of these reactions but they are still not wellKinetic models were obtained from the TGA data using isoconversional and model-fitting methods.The reaction rates for the compressed feeds were lower than those for the powder feeds.The compression pressure had little influence on the reaction rate.volume model ( ) = 3(1− ) , where is the conversion rate of reactant.

Keywords： calcium carbide     kinetic model     activation energy     pre-exponential factor    

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Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr2O3 System

Zhang Yancheng,Pan Ye,Zhang Chuan

Strategic Study of CAE 2004, Volume 6, Issue 6,   Pages 63-67

Abstract:

The thermodynamic calculation and analysis of combustion synthesis reaction of Al - Cr<sub>2&and Cr<sub>2</sub>O<sub>3</sub> diluents were conducted, and the effects of reactionFurthermore, the correlation between Gibbs free energy AG and reaction temperature T was displayed byIt shows the reaction of this system is controlled by diffusion.At last, combined with the analysis on the experiment results, the thermal explosive reaction micro-model

Keywords： cermet     combustion synthesis     Al - Cr2O3 system     thermodynamics     reaction model    

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Advance in FCC Process Reaction Chemistry

Xu Youhao and Wang Xieqing

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 6-14

Abstract: style="text-align: justify;">Faced the stringent challenge of FCC process,  the multi-dimensional reactionstructure was proposed for FCC process reaction chemistry. The multi-dimension reaction structure mode was established on the basis of hydrocarbon reaction FCC process with multi-dimensional reaction structure has more production modes. The multi-dimensional reaction structure was used to successfully develop MIP process aiming at

Keywords： catalytic cracking     reaction chemistry     catalyst     two different reaction zones     multi--dimensional reaction    

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Heterogeneous reaction mechanism of gaseous HNO

Nan ZHAO,Qingzhu ZHANG,Wenxing WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0836-z

Abstract: We studied the heterogeneous reaction mechanism of gaseous HNO with solid NaCl.Water molecules induce surface reconstruction of NaCl to facilitate the reaction.This paper aimed at the heterogeneous reaction between gaseous HNO and solid NaCl.imply that water molecules induce the surface reconstruction, which is essential for the heterogeneous reaction

Keywords： Seasalt particles     NaCl     HNO3     Heterogeneous reaction     Reaction mechanism     Density functional theory    

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Dual-reaction-center catalytic process continues Fenton’s story

Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 5, doi: 10.1007/s11783-020-1261-x

Abstract: Abstract • Dual-reaction-center (DRC) system breaks through bottleneck of Fenton reaction. • UtilizationHowever, both heterogeneous and homogeneous Fenton/Fenton-like technologies follow the classical reactionSo even after a century of development, this reaction still suffers from its inherent bottlenecks inbeen focusing on studying a novel heterogeneous Fenton catalytic process, and we developed the dual-reaction-centerThe construction of the DRC and its performance in the pollutant degradation and interfacial reaction

Keywords： Dual reaction centers     Fenton     Pollutant utilization     Electron transfer    

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Title Author Date Type Operation

Kinetic model for hydroisomerization reaction of C-aromatics

XU Ouguan, SU Hongye, JIN Xiaoming, CHU Jian

Journal Article

Modified landfill gas generation rate model of first-order kinetics and two-stage reaction

Jiajun CHEN , Hao WANG , Na ZHANG ,

Journal Article

Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds

Journal Article

dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction

Journal Article

Prediction of falling weight deflectometer parameters using hybrid model of genetic algorithm and adaptive

Journal Article

Kinetic study of hydrodesulfurization of coker gas oil in a slurry reactor

Haiding XIANG, Tiefeng WANG

Journal Article

Multiscale Homogenization Analysis of Alkali–Silica Reaction (ASR) Effect in Concrete

Roozbeh Rezakhani, Mohammed Alnaggar, Gianluca Cusatis

Journal Article

Thermodynamic analysis of reaction pathways and equilibrium yields for catalytic pyrolysis of naphtha

Journal Article

Preparation of manganese (III) acetylacetonate nanoparticles via an environmentally benign route

M. S. Shalaby, H. Abdallah

Journal Article

Effect of pressure on gasification reactivity of three Chinese coals with different ranks

Chunyu LI, Jiantao ZHAO, Yitian FANG, Yang WANG

Journal Article

Reaction kinetics of CaC

Renxing Wang,Zhenyu Liu,Leiming Ji,Xiaojin Guo,Xi Lin,Junfei Wu,Qingya Liu

Journal Article

Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr2O3 System

Zhang Yancheng,Pan Ye,Zhang Chuan

Journal Article

Advance in FCC Process Reaction Chemistry

Xu Youhao and Wang Xieqing

Journal Article

Heterogeneous reaction mechanism of gaseous HNO

Nan ZHAO,Qingzhu ZHANG,Wenxing WANG

Journal Article

Dual-reaction-center catalytic process continues Fenton’s story

Chao Lu, Kanglan Deng, Chun Hu, Lai Lyu

Journal Article