Potential of Pyrolytic Gas from Pelletized Residual Biomass of Rice Husk and Corncob Blend: Analysis of Non-Condensable Gas Evolution in a Batch Reactor

Pyrolysis is the primary chemical reaction preceding combustion and gasification, where organic matter is heated in the absence of oxygen, producing condensable gases, non-condensable gases, and biochar, a carbon-rich solid product [1].The pyrolysis products are formed through the primary reactions of biomass after a drying process. As temperature increases, the secondary reactions of volatiles and condensables lead to the formation of tars and low-molecular-weight gases.
This study evaluates the composition of combustible gases—hydrogen, carbon monoxide, and methane—to assess the effect of temperature on the calorific value of non-condensable gases and hydrogen production yield. The novelty of this process lies in performing pyrolysis without using carrier gas; instead, the devolatilization itself generates pressurization, forcing gas flow through a capillary.