Mineral matter effects on the reactivity of chars during gasification
Abstract The gasification reaction C + CO 2 was studied using chars obtained from three lignites from the Teruel basin. The kinetic model which best describes the progress of the reaction, and the influence of the mineral matter, was found. Working conditions were: 900 to 1000°C, atmospheric pressure, in a fluidized bed differential reactor.
Abstract Food processing industries are extremely large consumers of thermal energy as well as bio waste generation and there are huge opportunities to improve its utilization. In this study a medium scale spirit plant situated in China was audited. Based on the data obtained, energy and mass balances were performed in order to find the sources of thermal energy, the potential cost effective reduction, recovery and assess potential uses to lower the fossil fuel consumption and CO2 emission. Fermented grains are used for the spirit production and even though they are re utilised during the process at the end are disposed as biological waste consisting mainly of wet distillers grains. The feasibility of using the waste as fuel for direct combustion or co-combustion with coal for the steam generation was studied and evaluated.