کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
158655 | 457014 | 2007 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Thermal imaging of catalyst surface during catalytic dehydrogenation of cyclohexane under spray-pulsed conditions Thermal imaging of catalyst surface during catalytic dehydrogenation of cyclohexane under spray-pulsed conditions](/preview/png/158655.png)
Infra-red thermographic imaging, a tool widely used for screening of active catalytic materials in the field of combinatorial chemistry, has been used during dehydrogenation of cyclohexane on Pt catalyst supported on active carbon cloth and alumite supports. A spray-pulsed reactor with injection of atomized cyclohexane and to create alternate wet and dry conditions on the catalyst surface was used in this study. Since the production rate of hydrogen via endothermic dehydrogenation reaction is greatly dependent on the temperature of the catalyst surface, the temperature profile of the catalyst is important to observe. The observed change in the temperature profile at wet and dry conditions with varying pulse injection frequency and corresponding product gas analysis reveals that the spray-pulse mode is useful in improving the catalyst activity. Further, the comparison between activated carbon support and a more conductive support such as alumite is reported using thermal imaging for more suitable support in this endothermic reaction.
Journal: Chemical Engineering Science - Volume 62, Issue 24, December 2007, Pages 7370–7377