Akademik Veri Yönetim Sistemi
Combustion Science and Technology, 2025 (SCI-Expanded, Scopus)
The thermochemical conversion of post-consumer wood waste into hydrogen-rich syngas presents a promising solution for sustainable energy production and waste management. This study explores the influence of physical pre-treatment, specifically chipping versus pelletizing, on the gasification performance of wood waste using an updraft circulating fixed-bed reactor. Wood waste collected from municipal sources was thoroughly characterized through proximate and ultimate analyses, TGA/DTG, FTIR-ATR, and SEM, to assess its suitability for gasification. Experiments were conducted at 700, 800, 900°C using dry air and pure oxygen as gasifying agents at varied flow rates. Results showed that temperature and gasifying agent type significantly influenced syngas composition and cold gas efficiency. Pelletized biomass consistently outperformed its chipped counterpart, yielding higher hydrogen content, improved H2/CO ratios, and greater cold gas efficiencies across all conditions. Notably, hydrogen concentrations reached up to 57 vol%, with a corresponding cold gas efficiency of 68% at 900°C under pure oxygen conditions. These enhancements are attributed to the increased energy density, reduced moisture, and uniform structure of the pellets, which facilitated more effective thermal decomposition and reaction kinetics. The findings suggest that pelletization is a beneficial pre-treatment strategy for optimizing wood waste gasification, enabling higher energy recovery, and producing syngas compositions favorable for downstream applications such as Fischer-Tropsch synthesis. This research contributes valuable insights toward integrating biomass gasification into circular economy frameworks and advancing renewable energy technologies.