高性能甲烷催化燃烧催化剂的制备及其在天然气催化燃烧热水器上的应用  

Preparation of High Performance Methane Combustion Catalyst and Its Application to Natural Gas Catalytic Combustion Fan-Boiler

作　　者：张晓玉[1] 刘志敏[1] 魏振玲[1] 杜小春[1] 龚茂初[1] 陈耀强[1] 

机构地区：[1]四川大学化学学院,四川成都610064

出　　处：《催化学报》2006年第9期823-826,共4页

基　　金：国家自然科学基金(20273043);国家自然科学基金重点项目(20333030)资助.

摘　　要：以镧改性的Ce-Zr-O固溶体储氧材料和钇、锆改性的氧化铝(YSZ-Al2O3)的混合物为载体,浸渍活性组分Co3O4+Fe2O3+MnO2,以蜂窝状堇青石陶瓷材料为基体,制备了甲烷催化燃烧催化剂,考察了该催化剂老化前后的活性,并将其用于强鼓式家用天然气催化燃烧热水器.结果表明,该催化剂具有很高的活性和稳定性.使用此催化剂的天然气催化燃烧热水器的热效率达到101.1%,同时烟气中CO和NOx污染物的排放浓度分别为0.014%和0.003%,该热水器具有高效节能和环境友好双重优点.A Co3O4-Fe2O3-MnO2 monolithic catalyst supported on a mixture of yttria-stabilized zirconia （YSZ）- Al2O3 and La-modified CeO2-ZrO2 oxygen storage material was prepared. The catalyst activity for methane combustion was measured in a microreactor, and a domestic natural gas premixed catalytic combustion fan-boiler prototype was developed on the basis of this methane combustion catalyst system. The monolithic catalyst has high activity and good thermal stability, and the natural gas premixed catalytic fan-boiler has the advantages of high thermal efficiency and low CO and NOx emissions. Hence it is an energy saving and environmentally friendly product with high efficiency.

关 键 词：氧化钴 氧化铁 氧化锰 整体式催化剂 甲烷 催化燃烧 强鼓式家用天然气催化燃烧热水器 

分 类 号：O643.36[理学—物理化学] TS914.25[理学—化学]