MODELLING AND SIMULATION OF PRODUCTION OF SYNGAS BY GASIFICATION USING CARBONACEOUS FEED

Abstract

The present dissertation report deals with the modeling and simulation of gasification process for syngas production. Equilibrium modeling was done to study the product gas composition by changing the process parameters viz, reaction temperature (RT), equivalence ratio (ER) and moisture content (MC). The results were compared with the other research papers and the - model is quite satisfactory for the ER range 0.15 to 0.35. System model have been solved using MATLAB R2014a software. Modeling result shows that (a) hydrogen, methane, carbon monoxide and sulfur gases mole percent decreases while mole percent of carbon dioxide and nitrogen water mix increases with equivalence ratio, (b) hydrogen and carbon dioxide increases while methane, carbon monoxide, (nitrogen+water), and sulfur decreases with temperature, (c) hydrogen, methane, carbon dioxide and (nitrogen+water) increases while carbon monoxide and sulfur decreases with increasing moisture content. The model is studied for the range of temperature (800-1400 K), moisture content (7-40 %) and equivalence ratio (0-1). It was observed that Syngas compositions strongly depend on the characteristic of feed carbonaceous material. Coal has different characteristic of syngas from biomass (wood waste of oak, pine and eucalyptus). While oak and pine have much similar composition of syngas.