Search Results - "Vandewalle, Laurien A"

New Trends in Olefin Production by Amghizar, Ismaël, Vandewalle, Laurien A., Van Geem, Kevin M., Marin, Guy B.

“…Most olefins （e.g., ethylene and propylene） will continue to be produced through steam cracking （SC） ofhydrocarbons in the coming decade. In an uncertain…”
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Multi-Scale Modeling of Plastic Waste Gasification: Opportunities and Challenges by Madanikashani, Sepehr, Vandewalle, Laurien A., De Meester, Steven, De Wilde, Juray, Van Geem, Kevin M.

“…Among the different thermo-chemical recycling routes for plastic waste valorization, gasification is one of the most promising, converting plastic waste into…”
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The role of mass and heat transfer in the design of novel reactors for oxidative coupling of methane by Vandewalle, Laurien A., Van de Vijver, Ruben, Van Geem, Kevin M., Marin, Guy B.

“…•Reactor design will lead to a breakthrough for oxidative coupling of methane (OCM).•Understanding mass and heat transfer phenomena is crucial for OCM reactor…”
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catchyFOAM: Euler–Euler CFD Simulations of Fluidized Bed Reactors with Microkinetic Modeling of Gas-Phase and Catalytic Surface Chemistry by Vandewalle, Laurien A, Marin, Guy B, Van Geem, Kevin M

“…Whereas detailed kinetic models have already been implemented widely in computational fluid dynamics (CFD) simulations of gas-phase processes, CFD modeling of…”
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Process Intensification in a Gas–Solid Vortex Unit: Computational Fluid Dynamics Model Based Analysis and Design by Vandewalle, Laurien A, Gonzalez-Quiroga, Arturo, Perreault, Patrice, Van Geem, Kevin M, Marin, Guy B

“…The process intensification abilities of gas–solid vortex units (GSVU) are very promising for gas–solid processes. By working in a centrifugal force field,…”
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Wall‐resolved large eddy simulation of turbulent flows in helically ribbed steam cracker reactors by Wang, Yannan, Dedeyne, Jens N., Vandewalle, Laurien A., Van Geem, Kevin M.

“…Helically ribbed coils are commonly applied in steam cracking furnaces. To fully understand the impact of these ribbed wall modifications on the local heat…”
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A Boudart Number for the Assessment of Irreducible Pellet-Scale Mass Transfer Limitations: Application to Oxidative Coupling of Methane by Vandewalle, Laurien A, Van Geem, Kevin M, Marin, Guy B, Bos, René

“…The traditional concept of the Thiele or Weisz modulus can fail to assess the relevance of pellet-scale transport limitations in the case of heterogeneously…”
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Computational Fluid Dynamics-Assisted Process Intensification Study for Biomass Fast Pyrolysis in a Gas–Solid Vortex Reactor by Kulkarni, Shekhar R, Vandewalle, Laurien A, Gonzalez-Quiroga, Arturo, Perreault, Patrice, Heynderickx, Geraldine J, Van Geem, Kevin M, Marin, Guy B

“…The process intensification possibilities of a gas–solid vortex reactor have been studied for biomass fast pyrolysis using a combination of experiments…”
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Dynamic simulation of fouling in steam cracking reactors using CFD by Vandewalle, Laurien A., Van Cauwenberge, David J., Dedeyne, Jens N., Van Geem, Kevin M., Marin, Guy B.

“…[Display omitted] •An algorithm to simulate coke formation in 3D steam cracking reactors was developed.•Taking into account coke layer growth is needed to…”
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Dream or Reality? Electrification of the Chemical Process Industries by Bonheure, Mike, Vandewalle, Laurien A, Marin, Guy B, Van Geem, Kevin M

“…Electrification of the chemical process industries (CPI) is already gradually occurring. Intensified separations processes, plasma technology, ultrasound…”
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Impact of a Helical Ridge within a Tubular Membrane Channel on Fluid Flow and Particle Behavior: A Model-Based Analysis by Naessens, Wouter, De Jaegher, Bram, Vandewalle, Laurien A, Van Geem, Kevin M, Baetens, Jan M, Nopens, Ingmar

“…Helical inserts or baffles in tubular membranes can provide flux increases without additional energy usage. However, the optimal shape of these…”
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Necessity and Feasibility of 3D Simulations of Steam Cracking Reactors by Reyniers, Pieter A, Schietekat, Carl M, Van Cauwenberge, David J, Vandewalle, Laurien A, Van Geem, Kevin M, Marin, Guy B

“…Using detailed kinetic models in computational fluid dynamics (CFD) simulations is extremely challenging because of the large number of species that need to be…”
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Periodic reactive flow simulation: Proof of concept for steam cracking coils by Van Cauwenberge, David J., Vandewalle, Laurien A., Reyniers, Pieter A., Van Geem, Kevin M., Marin, Guy B., Floré, Jens

“…Streamwise periodic boundary conditions (SPBCs) have been successful in reducing the computational cost of simulating high aspect ratio processes. Extending…”
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Techno-economic analysis of an absorption based methanol to olefins recovery section by Reyniers, Pieter A., Vandewalle, Laurien A., Saerens, Stephanie, de Smedt, Philip, Marin, Guy B., Van Geem, Kevin M.

“…•First process simulation of an absorption based light olefins recovery section.•Comparison of the absorption configuration to the current state of the…”
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CFD-based assessment of steady-state multiplicity in a gas-solid vortex reactor for oxidative coupling of methane by Vandewalle, Laurien A., Marin, Guy B., Van Geem, Kevin M.

“…•Autothermal operation is the ultimate example of process intensification for OCM•Autothermal operation requires steady-state multiplicity and thermal…”
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CFD analysis on hydrodynamics and residence time distribution in a gas-liquid vortex unit by Chen, Siyuan, Ouyang, Yi, Vandewalle, Laurien A., Heynderickx, Geraldine J., Van Geem, Kevin M.

“…•3D Euler-Euler simulations of gas-liquid flow in a vortex unit are performed.•Validation based on experimental data shows good agreement.•Residence time…”
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Neural network approach to response surface development for reaction model optimization and uncertainty minimization by Zhang, Yue, Dong, Wendi, Vandewalle, Laurien A., Xu, Rui, Smith, Gregory P., Wang, Hai

“…We examine the state-of-the-art neural network (NN) approach and its flexible implementations in combustion reaction model uncertainty quantification (UQ),…”
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catchyCFDEM: Open-source microkinetic modeling of heterogeneous catalysis in Eulerian-Lagrangian CFD applied to oxidative coupling of methane by Wéry, Florian, Vandewalle, Laurien A., Heynderickx, Geraldine J., Van Geem, Kevin M.

“…[Display omitted] •A validated open-source reactive CFD-DEM framework is presented.•Study of a GSVR assesses the impact of operating parameters on OCM…”
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Catalyst ignition and extinction: A microkinetics-based bifurcation study of adiabatic reactors for oxidative coupling of methane by Vandewalle, Laurien A., Lengyel, Istvan, West, David H., Van Geem, Kevin M., Marin, Guy B.

“…•Bifurcation behavior of gas phase and catalytic OCM in 3 adiabatic reactor types is analyzed.•Detailed microkinetic models are used for the gas phase and…”
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Hydrodynamic CFD-DEM model validation in a gas–solid vortex unit by Wéry, Florian, Vandewalle, Laurien A., Marin, Guy B., Heynderickx, Geraldine J., Van Geem, Kevin M.

“…[Display omitted] •CFD-DEM simulations of a GSVU are performed in a modified version of CFDEMcoupling.•Validation is performed against experimental data…”
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