Several power plant configurations have been recently studied as an alternative to conventional technologies in the field of energy systems equipped with carbon capture and storage technologies. This is done in order to develop efficient and economically competitive and clean technologies based on coal conversion processes. The use of CO2as gasification agent opens new interesting prospects in relation to the gasification of coal or co-gasification of coal and biomasses. The paper proposes an experimental approach to the analysis of coal gasification that uses CO2as gasification agent, by thermogravimetric analysis. The aim of the present work is to characterize the kinetics of CO2gasification at different reaction temperatures of two different types of chars: low-rank coals Sulcis and high-rank coal South African. The kinetic analysis of coal gasification rate has been implemented by fitting the experimental data with homogeneous kinetic model. The reactivity of the two chars was compared using the Arrhenius kinetic constant and the reactive index. Experimental data obtained for the whole range of experimental conditions explored were satisfactorily described by a single kinetic model showing a 0.99 linear regression fit with greater reactivity achieved by the Sulcis coal.
|Publication status||Published - 2010|
|Event||23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010 - , Switzerland|
Duration: 1 Jan 2010 → …
|Conference||23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010|
|Period||1/1/10 → …|
All Science Journal Classification (ASJC) codes
- Environmental Science(all)
Bassano, C., Deiana, P., Ricci, G., & Veca, E. (2010). First results of thermal analysis on sulcis and South-African coal into gasification tests with CO. Paper presented at 23rd International Conference on Efficiency, Cost, Optimization, Simulation, and Environmental Impact of Energy Systems, ECOS 2010, Switzerland.