Study on hexaaluminate MnLaAl11O19-δcatalyst for catalytic combustive reaction of dimethyl ether as a new fuel

稀有金属（英文版）, 2006, 25(z1): 333-336.

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1.Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

2.Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

3.Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

4.Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

5.Shaoguan College, Shaoguan 512005, China

6.Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

7.Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China

基金项目: The Project of Science and Technology of Guangdong Province(2004B33401003;2005B10201053) 广东省自然科学基金(04205301;06021468) 国家自然科学基金(20203012)

Study on hexaaluminate MnLaAl11O19-δcatalyst for catalytic combustive reaction of dimethyl ether as a new fuel

Keywords： dimethyl ether

Study on catalytic combustive reaction of dimethyl ether as a new fuel was presented. Hexaaluminate catalysts were used to reduce ignition temperature so that dimethyl ether completely combusted at low temperature. Hexaaluminate catalysts MnLaAl11O19-δ were prepared by reverse microemulsion method. Crystalline phase and structure of the catalyst were analysed by means of TG-DTA, XRD and BET. The results show that the hexaalunminate is of magnetoplumbite structure when La is taken as mirror plane cation. Hexaalunminate phase is formed slowly via 1050 ℃ calcined for 4 h and it can keep hexaaluminate phase and high surface area of 48 m2·g-1 even calcined at 1200 ℃ for 2h. Catalytic activity of MnLaAl11O19-δ was tested in combustion reaction of dimethyl ether. It shows that hexaaluminate is of high activity with T 10% at 170 ℃ and almost 100% conversion at 370 ℃.

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Study on hexaaluminate MnLaAl11O19-δcatalyst for catalytic combustive reaction of dimethyl ether as a new fuel

参考文献