CAJ | 학술논문

为了考察矿井乏风低浓度甲烷的催化燃烧性能,以γ-Al2 O3为载体,采用等体积浸渍法制备了不同活性组分Cu负载量和添加助剂 Fe的 CuO/Al2 O3催化剂,在固定床反应装置上考察其对低浓度甲烷催化燃烧反应活性.用BET、XRD、H2-TPR 对催化剂进行表征,结果表明,CuO/Al2 O3催化剂对甲烷高温催化活性随Cu 负载量的增加而降低,助剂Fe的加入能够提高CuO 在Al2 O3载体表面的分散度,负载助剂Fe的CuO-Fe/Al2 O3催化剂具有更高的催化活性.Cu负载量为10％时,添加3％的助剂 Fe,可使甲烷完全转化温度降低至640℃.
위료고찰광정핍풍저농도갑완적최화연소성능,이γ-Al2 O3위재체,채용등체적침지법제비료불동활성조분Cu부재량화첨가조제 Fe적 CuO/Al2 O3최화제,재고정상반응장치상고찰기대저농도갑완최화연소반응활성.용BET、XRD、H2-TPR 대최화제진행표정,결과표명,CuO/Al2 O3최화제대갑완고온최화활성수Cu 부재량적증가이강저,조제Fe적가입능구제고CuO 재Al2 O3재체표면적분산도,부재조제Fe적CuO-Fe/Al2 O3최화제구유경고적최화활성.Cu부재량위10％시,첨가3％적조제 Fe,가사갑완완전전화온도강저지640℃.
In order to investigate the catalytic combustion performance of coal mine ventila-tion air with low concentration methane,γ-Al2 O3 catalysts have been prepared with different a-mount of Cu with Fe as promoter supported on CuO/Al2 O3 by using volumetric impregnation method. The catalytic activity of low concentration methane combustion has been investigated in a fixed bed reaction device. The structure of catalysts has been characterized by using BET,XRD and H2-TPR technologies. The results showed that catalytic activity of methane conversion was decrease at high temperature as Cu loading increasing. The degree of CuO dispersion on Al2 O3 support has been increased by loading Fe as promote. The catalyst CuO-Fe/Al2 O3 loading Fe showed higher catalytic activity. The temperature of methane conversion complete to 640 ℃when had 10% Cu amount with 3% Fe as promoter.