Abstract
Experimental and numerical studies on Pt-catalytic combustion were carried out in order to investigate the characteristics of it in highly concentrated CO_2. In the experiment, flue gases were analyzed by gas chromatography. In the numerical calculation, catalytic surface reactions were revealed by using two-dimensional axial symmetric simulation. As a result, intermediate products such as CO and H_2 were highly exhausted at rich mixture condition (Φ=1.5〜2.5), and those amounts were reduced in comparison with that in N_2 mixture. These characteristics were interpreted with the reaction temperature, the reactivity and the desorption rate on the catalyst.
