Machine learning methods for modeling conventional and hydrothermal gasification of waste biomass: A review

https://doi.org/10.1016/j.biteb.2022.100976Get rights and content

Highlights

Recent advances in advancement in the application of machine learning to gasification research were outlined.

Methods for mitigating the black – box nature of some algorithms were proposed.

Machine learning based studies could foster the development of novel heterogeneous catalysts for biomass gasification.

Different machine learning algorithms were briefly reviewed.

Abstract

Conventional and hydrothermal gasification are promising thermochemical technologies for the production of syngas from waste biomass. Both gasification processes are complex, with several intermediate reactions occurring simultaneously and at different times. Therefore, traditional modeling approaches, including thermodynamic and kinetic models, process modeling and computation fluid dynamics (CFD), are sometimes used to describe the process and study the influence of process parameters on syngas yield. However, most traditional models are impractical and often challenging to model the input-output relationship. Machine learning (ML) methods provide a promising alternative to traditional modeling approaches. This study outlined the advancement in the application of ML to gasification research. Different ML algorithms, including artificial neural networks, deep learning and support vector machines, are briefly described. Challenges and limitations of ML-based methods for gasification research are also discussed. When implemented effectively, ML – approaches could foster the development of novel heterogeneous catalysts for biomass gasification.

Abbreviations

ANN
Artificial Neural Network
AWRA
Adaptive Weighted Rank Aggregation
BTG
Biomass-to-gas
CFD
Computational Fluid Dynamics
CGE
Carbon Gas Efficiency
DNN
Deep Neural Network
DTR
Decision Tree Regression
GBR
Gradient Boosting Regression
GPR
Gaussian Process Regression
HHV
Higher Heating Value
LHV
Lower Heating Value
MAPE
Mean Absolute Percentage Error
MIMO
Multiple Input Multiple Output
MISO
Multiple Input Single Output
ML
Machine Learning
MLP
Multilayer Perceptron
PCA
Particle Component Analysis
PSO
Particle Swarm Optimization
RAE
Relative Absolute Error
RBF
Radial Basis Function
RF
Random Forest
RMSE
Root Mean Square Error
SCW
Supercritical Water
SVM
Support Vector Machine

Keywords

Gasification
Biomass
Machine learning
Catalyst
Process optimization
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