MFiX based multi-scale CFD simulations of biomass fast pyrolysis: A review

L Lu, X Gao, JF Dietiker, M Shahnam… - Chemical Engineering …, 2022 - Elsevier
Multi-scale computational fluid dynamics (CFD) simulation bridges the gaps between
particle and reactor scales in the modeling of biomass pyrolysis. Its accuracy depends on …

A review on CFD simulation of biomass pyrolysis in fluidized bed reactors with emphasis on particle-scale models

H Luo, X Wang, X Liu, X Wu, X Shi, Q **ong - Journal of Analytical and …, 2022 - Elsevier
This paper reviews the recent advances in multi-scale computational fluid dynamics (CFD)
simulations of biomass pyrolysis in fluidized bed reactors. The interconnection among …

Simulations of biomass pyrolysis using glued-sphere CFD-DEM with 3-D intra-particle models

L Lu, X Gao, M Shahnam, WA Rogers - Chemical Engineering Journal, 2021 - Elsevier
The shape of biomass particles influences intra-particle heat transfer, particle-particle
collisions, interphase momentum, heat transfer, and pyrolysis yield. In this research, the …

Machine learning based prediction of biomass pyrolysis with detailed reaction kinetics for thermally-thick particles: from 1D to 0D

H Luo, X Wang, X Liu, L Yi, X Wu, X Yu… - Chemical Engineering …, 2023 - Elsevier
In reactor-scale CFD modeling of biomass pyrolysis with thermally-thick particles, zero-
dimensional (0D) models coupled with lumped kinetics are commonly used, as they are …

Review of modelling of pyrolysis processes with CFD-DEM

DD Attanayake, F Sewerin, S Kulkarni… - Flow, Turbulence and …, 2023 - Springer
In a pyrolysis reactor, organic polymers from biomass or plastic waste are thermally
decomposed into volatile gases, condensable vapours (tar or bio-oil) and solid residues …

Multiscale CFD simulation of biomass fast pyrolysis with a machine learning derived intra-particle model and detailed pyrolysis kinetics

L Lu, MB Pecha, GM Wiggins, Y Xu, X Gao… - Chemical Engineering …, 2022 - Elsevier
Coupling particle and reactor scale models is as essential as reactor fluid dynamics and
particle motion for accurate Computational Fluid Dynamic (CFD) simulations of biomass fast …

Multi-fluid modeling of heat transfer in bubbling fluidized bed with thermally-thick particles featuring intra-particle temperature inhomogeneity

H Luo, X Wang, X Wu, L Niedzwiecki… - Chemical Engineering …, 2023 - Elsevier
The multi-fluid model has been widely used to study heat transfer between gas and solid in
bubbling fluidized beds. However, zero-dimensional (0D) model has been commonly used …

Simulation of biomass pyrolysis in a rotary drum by coupling CFD-DEM with a one-dimensional thermally thick model

J Wang, X Ku, S Yang - Energy & Fuels, 2022 - ACS Publications
A reactive computational fluid dynamic-discrete element model (CFD-DEM) is coupled with
a one-dimensional thermally thick model to simulate biomass pyrolysis in a three …

Assessments and analysis of lumped and detailed pyrolysis kinetics for biomass torrefaction with particle-scale modeling

H Luo, X Wang, K Krochmalny, L Niedzwiecki… - Biomass and …, 2022 - Elsevier
A one-dimensional model with consideration of internal and external heat transfer, particle
shrinkage, moisture evaporation, and pyrolysis kinetics is developed to predict biomass …

Numerical investigation of biomass pyrolysis performance in a fluidized-bed reactor by a TFM-DEM hybrid model

J Wang, X Ku, J Lin - Chemical Engineering Science, 2022 - Elsevier
A hybrid model, which combines two-fluid model with discrete element method as well as a
multi-component and multi-step pyrolysis scheme, has been developed to simulate biomass …