SPECIFIC FEATURES OF THE OXYFUEL COMBUSTION CONDITIONS IN A BUBBLING FLUIDIZED BED

Acta Polytechnica

Jan Hrdlička¹  Pavel Skopec¹ 

[1] Czech Technical Univerzity in Prague

关键词: oxy-fuel combustion;    bubbling fluidized bed;    flue gas recirculation;   

DOI  :  

来源: Czech Technical University in Prague, Faculty of M

【 摘 要 】

Oxyfuel combustion is a promising approach for capturing CO 2from power plants. This technology produces a flue gas with a high concentration of CO 2 . Our paper presents a verification of the oxyfuel combustion conditions in a bubbling fluidized bed combustor. It presents a theoretical analysis of oxyfuel combustion and makes a comparison with combustion using air. It is important to establish a proper methodology for stoichiometric calculations and for computing the basic characteristic fluidization properties. The methodology presented here has been developed for general purposes, and can be applied to calculations for combustion with air and with oxygen-enriched air, and also for full oxyfuel conditions. With this methodology, we can include any water vapour condensation during recirculation of the flue gas when dry flue gas recirculation is used. The paper contains calculations for a lignite coal, which is taken as a reference fuel for future research and for the experiments.

【 授权许可】

Unknown