Influence of Temperature in the Thermo-Chemical Decomposition of Below-Stoichiometric RDF Char—A Macro TGA Study

Due to the energy crisis that some countries are facing nowadays, gasification process appears be a good alternative produce from solid materials. Increasingly, involves using wastes as fuel, making green and reusing materials otherwise could end up in landfill. However, of finding best parameters sample can very expensive time-consuming. In this sense, refuse-derived fuel (RDF) char produced an original RDF under 30 min at 400 °C was tested on small-scale reactor macro thermogravimetric analysis (TGA), presented paper. The goal study evaluate devolatilization residual carbon rate several conditions and, same time, quantify analyze released gas. first round tests, 5, 10, 20 g samples were 750 with excess air coefficient (λ) = 0 0.2. It possible conclude lower mass, higher rate. λ only had influence sample. Regarding gas, CO, CO2, H2 no variation mass contrast CH4, which increased increase mass. second tests performed 10 temperatures 700, 800, 900 values 0.15, 0.2, 0.25. indicated temperature influenced but not combustion gas composition, CO followed trend, decreasing concentration temperature; contrast, temperature. heating value behavior CH4.