Effect of Preparation Methods on Activation of Catalysts BaNi0.2Mn0.8Al11O19-δ for Dimethyl Ether Combustion

›› 2008, Vol. 16 ›› Issue (3): 389-393.

• SPECIAL ISSUE OF THE FIRST INTERNATIONAL SYMPOSIUM ON SUSTAINABLE CHEMICAL PRODUCT AND PROCESS ENGINEERING • Previous Articles Next Articles

Effect of Preparation Methods on Activation of Catalysts BaNi_0.2Mn_0.8Al₁₁O_19-δ for Dimethyl Ether Combustion

YU Qian¹, YU Lin¹, WANG Yuanna¹, ZHANG Qini¹, SUN Ming¹, HUANG Yingmin¹, LU Yeyu¹, GE Zaochuan²

1. Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China;
2. Shenzhen Specialized Functional Material Laboratory, Shenzhen University, Shenzhen 518060, China

Received:2007-10-01 Revised:2008-03-25 Online:2008-06-28 Published:2008-06-28
Supported by:
Project of Science and Technology of Guangdong Province (2004B33401003,2005B10201053);the Natural Science Foundation of Guangdong Province (04205301,06021468);the Special Functional Material Foundation of Shenzhen University (0602)

Effect of Preparation Methods on Activation of Catalysts BaNi_0.2Mn_0.8Al₁₁O_19-δ for Dimethyl Ether Combustion

余倩¹, 余林¹, 王苑娜¹, 张绮旎¹, 孙明¹, 黄应敏¹, 卢业玉¹, 戈早川²

1. Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China;
2. Shenzhen Specialized Functional Material Laboratory, Shenzhen University, Shenzhen 518060, China

通讯作者: YU Lin,E-mail:yuqgdut@126.com
基金资助:
Project of Science and Technology of Guangdong Province (2004B33401003,2005B10201053);the Natural Science Foundation of Guangdong Province (04205301,06021468);the Special Functional Material Foundation of Shenzhen University (0602)

Abstract

Abstract: Catalytic combustion of dimethyl ether(DME)over hexaaluminate catalyst BaNi_0.2Mn_0.8Al₁₁O_19-δ has been investigated.The catalysts were prepared with the sol-gel method and reverse microemulsion method respectively and characterized by thermogravimetry-differential thermal analysis,X-ray diffraction and transimission electron microscope.It was found that the formation of Mn,Ni modified hexaaluminate was a relatively slow process via two solid state reactions and spinel structure was a transition phase.At the same calcined temperature and time,the catalyst prepared with the reverse microemulsion method could form the hexaaluminate phase more easily than that prepared with the sol-gel method.The catalyst BaNi_0.2Mn_0.8Al₁₁O_19-δ prepared with the reverse micro-emulsion method appeared a plate-like morphology,while it appeared a needle-like morphology when using the sol-gel method.The catalytic activities of catalysts BaNi_0.2Mn_0.8Al₁₁O_19-δ prepared with two different methods for DME combustion were tested.It showed that catalyst prepared with the reverse microemulsion method had better catalytic activity,i.e.T_10% of DME had decreased by 45℃,about 90% conversion of diemthyl ether at 380℃.

Key words: dimethyl ether, hexaaluminate catalyst, reverse microemulsion, catalytic combustion

摘要： Catalytic combustion of dimethyl ether(DME)over hexaaluminate catalyst BaNi_0.2Mn_0.8Al₁₁O_19-δ has been investigated.The catalysts were prepared with the sol-gel method and reverse microemulsion method respectively and characterized by thermogravimetry-differential thermal analysis,X-ray diffraction and transimission electron microscope.It was found that the formation of Mn,Ni modified hexaaluminate was a relatively slow process via two solid state reactions and spinel structure was a transition phase.At the same calcined temperature and time,the catalyst prepared with the reverse microemulsion method could form the hexaaluminate phase more easily than that prepared with the sol-gel method.The catalyst BaNi_0.2Mn_0.8Al₁₁O_19-δ prepared with the reverse micro-emulsion method appeared a plate-like morphology,while it appeared a needle-like morphology when using the sol-gel method.The catalytic activities of catalysts BaNi_0.2Mn_0.8Al₁₁O_19-δ prepared with two different methods for DME combustion were tested.It showed that catalyst prepared with the reverse microemulsion method had better catalytic activity,i.e.T_10% of DME had decreased by 45℃,about 90% conversion of diemthyl ether at 380℃.

关键词: dimethyl ether, hexaaluminate catalyst, reverse microemulsion, catalytic combustion

YU Qian, YU Lin, WANG Yuanna, ZHANG Qini, SUN Ming, HUANG Yingmin, LU Yeyu, GE Zaochuan. Effect of Preparation Methods on Activation of Catalysts BaNi_0.2Mn_0.8Al₁₁O_19-δ for Dimethyl Ether Combustion[J]. , 2008, 16(3): 389-393.

余倩, 余林, 王苑娜, 张绮旎, 孙明, 黄应敏, 卢业玉, 戈早川. Effect of Preparation Methods on Activation of Catalysts BaNi_0.2Mn_0.8Al₁₁O_19-δ for Dimethyl Ether Combustion[J]. , 2008, 16(3): 389-393.

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Effect of Preparation Methods on Activation of Catalysts BaNi_0.2Mn_0.8Al₁₁O_19-δ for Dimethyl Ether Combustion

Effect of Preparation Methods on Activation of Catalysts BaNi_0.2Mn_0.8Al₁₁O_19-δ for Dimethyl Ether Combustion

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