Khalid Khazzal Hummadi
Abstract
Abstract The active gamma alumina oxide catalyst was prepared by using the precipitation of mixing of aluminum nitrate and aqueous ammonia . The effect of calcinations temperature of ...
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Abstract The active gamma alumina oxide catalyst was prepared by using the precipitation of mixing of aluminum nitrate and aqueous ammonia . The effect of calcinations temperature of aluminum hydroxide on the crystallography of the alumina oxide products were studied by means the thermal analysis and the X - Ray diffraction technique . The calcinations temperature were ( 300 , 500 , 600 , 650 , 700 , 800 , 900 , and 1000 ) " C. Also the surface area , pore volume , and mean pore radius were measured for all alumina oxide products . The activity of these alumina oxides for dehydration of ethanol was studied and comparable to that of commercial alumina oxide . The reaction was carried out in a tubular reactor under atmospheric pressure and 350 ° C.While the reaction products were analyzed by gas chromatography technique . The results show that the calcination temperature of 600-650 ° C gives the active crystal phase of gamma alumina oxide which is exhibit comparable dehydration activity to the commercial catalyst .
