Affiliation:
1. Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
Abstract
The primary objective of this study was to examine the catalytic behaviors exhibited by diverse metal catalysts such as CaO, NiO, and K2CO3 for pyrolysis and gasification application with waste biomass. The investigation involved fine tuning the conditions of pyrolysis/gasification by optimizing the pyrolysis atmosphere, catalyst addition methods, and catalyst quantities. The behaviors were investigated using thermal analysis (TG-DTA), and the production gaseous contents were analyzed via GC-FID. The results showed that Ar gas proved to be well suited for the pyrolysis reaction. The incorporation of catalysts through mixing and impregnation techniques ensured the homogeneous dispersion of catalyst particles within the sample, offering a clear advantage over the two-stage approach. Among the various catalysts explored, K2CO3 demonstrated the most favorable catalytic impact, resulting in an enhancement of char yield from 20.2 to 26.8%, while the tar yield was reduced from 44.3 to 38.6%. Furthermore, the presence of K during gasification reactions was found to foster accelerated reaction rates and an increase in syngas production yield.
Funder
Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
Subject
Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction
Reference35 articles.
1. Effect of low bioethanol fraction on emissions, performance, and combustion behavior in a modernized electronic fuel injection engine;Yusuf;Biomass Convers. Biorefinery,2021
2. Parametric Analysis of a Gasification-Based Cookstove as a Function of Biomass Density, Gasification Behavior, Airflow Ratio, and Design;Chica;ACS Omega,2022
3. Characterization and energy recovery from biomass wastes;George;Sustain. Energy Technol. Assess.,2023
4. Hydrogen production from biomass gasification using biochar as a catalyst/support;Yao;Bioresour. Technol.,2016
5. Applications of calcium oxide–based catalysts in biomass pyrolysis/gasification—A review;Li;J. Clean. Prod.,2021