Simulation and Experimental Study on Refuse Derived Fuel Gasification in a Downdraft Gasifier

Application of renewable energy to replace fossil fuels is an urgent issue to reduce greenhouse gas emissions, contributing to the implementation of the Net Zero strategy. Vietnam is a tropical country thus biomass is largely abundant. Therefore, gasification of biomass through RDF to produce syngas to power generators is potential for our country. To ensure storage possibility and to improve fuel uniformity, biomass from agricultural waste is processed into RDF. RDF is then gasified to produce syngas to fuel internal combustion engines. This work contributes to the experimental study of gasification of RDF biomass in a downdraft gasifier. The results show that the maximum temperature of the gasifier body ranges from 600 to 800 ℃, when the inlet air flow changes from 200 to 300 L/min. The location of the reaction zone and the maximum temperature zone is independent with the air flow supplied to the gasifier.