Simulation of Gasification of Livestock Manure with Aspen Plus

Abstract

Gasification is a flexible technology where all types of organic waste including biomass from manure can be used as feed to the reactor. The recovery of energy from solid waste offers several benefits including substantial reduction in the total quantity of waste and reduction in environmental pollution. The most suitable application of the product gas from the reactor is dependent on the quality and composition of the gas. In this study, gasification of manure and wood chips is simulated. In the gasification process, the carbonaceous feedstock is fluidized with steam at 850°C. The simulations are performed using Aspen Plus. The focus has been to study the heating values and the fractions of the different components in the product gas. The results are discussed and different modifications of the process parameters in the simulations are considered. Sensitivity analyses with respect to the steam to biomass ratio have been performed.