Abstract
A gasification model based on equilibrium reaction was developed in this study. It is to provide practical data and a theoretical perspective for scale-up a pilot-scale experimental study of high temperature gasification of organic waste materials in the down-flow furnace. The model considered three elements of material balance: carbon, hydrogen, and oxygen. The energy balance was mainly considered from heating value of constituents, while two kinds of equilibrium reaction was approached in this simulation. The simulation was developed for oxygen-gasification of organic waste materials (OWM), where the experimental was already done. In the experiment, the down-flow furnace was equipped to gasify a model organic waste of wood powder. The down flow furnace has 800 mm in outside diameter, 250 mm in inside diameter and 2 m in height. The experiment was done under condition of normal pressure and at around 1473 K. The experimental carbon conversion and heat loss was introduced as non-equilibrium factors into the model, which predict produced gas composition, heating value and cold gas efficiency in a good agreement with the experimental data.
