Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5146263 | International Journal of Hydrogen Energy | 2017 | 9 Pages |
Abstract
The reactions of biomass char CO2-gasification within granulated blast furnace slag (BFS) were systematically conducted by the non-isothermal program using a thermogravimetric analyzer. At the same time during reaction proceeded, the conversion of biomass char CO2-gasification reaction increased with the increasing heating rate. However, at the same temperature during reaction proceeded, the conversion of biomass char CO2-gasification reaction decreased with the increasing heating rate. The granulated BFS could be used as a catalyst in the biomass char CO2-gasification reaction and its catalytic effect became more obvious with the increasing content of BFS in the mixture. The A4 model (nuclei production (m = 4) model) selected through the novel two-step method firstly proposed in the study was the best match with all the gasification reactions. The activation energy was from 52.75 kJ/mol to 64.42 kJ/mol and was lower with the increase of heating rate and the content of BFS in the mixture. The kinetic equations of biomass char CO2-gasification reaction within granulated BFS were developed through the selected model and calculated kinetic parameters.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Xin Yao, Qingbo Yu, Kuiming Wang, Huaqing Xie, Qin Qin,