The study of Pt/Al2O3 and Pt/BN-Al2O3 catalysts for small methanol combustor on the combustion characteristics of heat

• Main Authors: FANG,DE-CHENG, 方德成
• Other Authors: CHU,CHIN-MING
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/52863116289764661555

碩士 === 國立聯合大學 === 化學工程學系碩士班 === 101 === The study designed a quartz tubular combustor to test the effect of homemade platinum combustion catalysts under different fuel flow rate. Combustor consists of two concentric pipes whose inner tube is burner and outer tube has five holes to measure the combustion temperature. The fuel is methanol - air. First, we prepare Pt/Al2O3 and Pt/BN-Al2O3 catalysts and compare with different catalysts、Pt loading and flow rate of methanol-air on combustion characteristics. Finally, the study selects an optimum Pt loading. Under adiabatic combustion, the results showed that methanol-air catalytic combustion was a fast chemical reaction which quickly rises from room temperature to high temperature. The start-rising time of Pt/BN-Al2O3 is faster than that of Pt/Al2O3, and the temperature distribution of the former is more uniform than the latter. The binary support catalysts of boron nitride-alumina and the combustor is required for short start-up time, the internal temperature being raised even highly to achieve a good heating effect.