A comparative study of machine learning methods for bio-oil yield prediction - A genetic algorithm-based features selection.

A Fe-Ca/SiO2 catalyst for efficient production of light aromatics from catalytic pyrolysis of biomass

Research on biomass decomposition and transformation has attracted widespread attention from academia to industry worldwide, aiming to harvest bio-aromatics from the abundant renewable biomass reso...

State of the Art and Perspectives in Catalytic Conversion Mechanism of Biomass to Bio-aromatics

Catalytic pyrolysis has recently aroused great interest for the high potential in upgrading bio-oils as renewable energy. However, conventional catalysts often exert diffusion resistance to large intermediate oxygenates. In this study, Fe-modified hierarchical ZSM-5 prepared by alkali and Fe loading of 2, 4, 6, 8 wt% were characterized by the analysis of XRD, BET, TEM, and NH3-TPD. Catalytic pyrolysis of poplar sawdust via Fe-modified hierarchical ZSM-5 was conducted using Py-GC/MS and TG-FTIR. The results indicated that alkali treatment and Fe loading of the catalyst introduced a hierarchical and porous structure and improved its acidity, leading to high mono-aromatics and olefins selectivity. The hierarchical ZSM-5 with 4 wt% Fe loading exhibited superior performance with high selectivity towards mono-aromatics of 15.30%. TG-FTIR analysis shows the volatiles release characteristics and FTIR spectra were consistent with pyrolysis behavior. Kinetic analysis reveals Fe-modified hierarchical ZSM-5 lowers the apparent activation energy in catalytic pyrolysis of poplar sawdust.

Catalytic pyrolysis of biomass over Fe-modified hierarchical ZSM-5: Insights into mono-aromatics selectivity and pyrolysis behavior using Py-GC/MS and TG-FTIR

Deactivation mechanism and regeneration effect of bi-metallic Fe-Ni/ZSM-5 catalyst during biomass catalytic pyrolysis

Effects of alkali and alkaline earth metals of inherent minerals on Fe-catalyzed coal pyrolysis

The aim of this study was to investigate the role of SiO2 in the in-situ pyrolysis of wheat straw. The maximum yields of CO, CH4 were 62.43 mL g−1, 9.19 mL g−1, and monocyclic aromatics, such as BTX (benzene, toluene, and xylene), PC (phenol, cresol), and naphthalene were, 8.67%, 12.14%, and 2.36%, respectively. High yields of gaseous products and light aromatics were obtained, which indicated that SiO2 exhibited catalytic activity in the pyrolysis of biomass. Char characterization by XRD, TEM-EDS, SEM, FT-IR, ICP, and BET revealed that SiO2 acted as a dispersant due to the porous structure of SiO2 increased the average pore diameter and total pore volume to promote the dispersion of metallic particles such as K, Fe, and Ca on the biomass ash. This resulted in improving quantity and quality of light aromatics of bio-tar and enhanced CH4 yield.

Renze He

Papers

A Fe-Ca/SiO2 catalyst for efficient production of light aromatics from catalytic pyrolysis of biomass

Effects of alkali and alkaline earth metals of inherent minerals on Fe-catalyzed coal pyrolysis

Enhancement of gas and aromatics by in-situ catalytic pyrolysis of biomass in the presence of silica gel

Effects of Si and Al elements in coal on Fe-catalyzed brown coal pyrolysis

Effects of Ba and Mg promoters on gas release from Fe catalyzed coal pyrolysis: Effects of different precursors