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HYDROCARBON - AMMONIA MOULDING-A NEW TECHNOLOGY FOR PRODUCTION OF COMBUSTION CATALYSTS
Ismagilov, Zinfer R .,Shkrabina, R . A .,Koryabkina, Natalia A . 한국화학공학회 1997 Korean Journal of Chemical Engineering Vol.14 No.3
Fluidized bed catalytic combustion has proved to be very promising for industrial application. The milestone problem is development of support and catalyst with high mechanical and thermal stability. We have developed a new technology for production of alumina supports with desired spherical shape, texture and structure. Properties of spherical granules depend on the method of granulation and most attention has been paid to development and optimization of hydrocarbon-ammonia moulding to produce uniform alumina spheres. Optimization of high quality spheres production focused on study of effect of initial hydroxide properties and molding conditions on properties of final product. Modification of spherical alumina with oxides of Mg, La, Ce, and Si proved to be effective to substantially improve the mechanical and thermal stability. This effect is most pronounced when pairs of these dopes are introduced simultaneously.
Review : Hydrocarbon-Ammonia Moulding-A New Technology for Production of Combustion Catalysts
( Zinfer R. Ismagilov ),( R. A. Shkrabina ),( Natalia A. Koryabkina ) 한국화학공학회 1997 Korean Journal of Chemical Engineering Vol.14 No.3
Fluidized bed catalytic combustion has proved to be very promising for industrial application. The milestone problem is development of support and catalyst with high mechanical and thermal stability. We have developed a new technology for production of alumina supports with desired spherical shape, texture and structure. Properties of spherical granules depend on the method of granulation and most attention has been paid to development and optimization of hydrocarbon-ammonia moulding to produce uniform alumina spheres. Optimization of high quality spheres production focused on study of effect of initial hydroxide properties and molding conditions on properties of final product. Modification of spherical alumina with oxides of Mg, La, Ce, and Si proved to be effective to substantially improve the mechanical and thermal stability. This effect is most pronounced when pairs of these dopes are introduced simultaneously.