Structured packings were developed to improve the heat transfer behavior and make possible process intensification. Structured packings decreased the pressure drop with respect to a fixed bed of spherical catalyst pellets by almost a factor of two. The commercial packing had a slightly better heat transfer behavior over the irregular packing; the optimized packing heat transfer exceeded that of the irregular bed by ~ 20%. An improved static mixer was layered with a typical industrial catalyst (thickness ~ 100 μm) and tested under reaction conditions, namely, the strongly endothermic dehydrogenation of methylcyclohexane to toluene and H2. The results of this experiment and of tests with pressure loss were compared with corresponding results with conventional fixed beds and explained in a computer simulation. The global heat transfer coefficients and pressure drops for different catalyst carriers were illustrated vs. mass flow loading in kilograms per square meter per second. The optimized packing exhibited the best heat transfer.
|Translated title of the contribution||Improvement in the heat transfer in catalytic fixed bed reactors using structured packing|
|Number of pages||1|
|Publication status||Published - Sep 1 2000|
ASJC Scopus subject areas
- Chemical Engineering(all)
- Industrial and Manufacturing Engineering