期刊
CHEMICAL ENGINEERING JOURNAL
卷 423, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.130244
关键词
Inclined rotating fixed-bed reactor; Process intensification; Heterogeneous catalysis; Multiphase reactor; Reactor model; CFD
资金
- German Research Foundation [DFG SCHU 2421/2-3]
The performance of an inclined rotating fixed-bed reactor for the hydrogenation of alpha-methylstyrene was analyzed, showing a 20% increase compared to an upright stationary trickle-bed reactor under experimental conditions. The most favorable mass transfer conditions were found at low inclination angles, resulting in the highest performance.
The performance of an inclined rotating fixed-bed reactor with concentric inner tube is analyzed for the hydrogenation of alpha-methylstyrene. In particular, the influences of low to intermediate rotational velocities (0.6-10 rpm), inclination angle (45 degrees -75 degrees) and superficial gas velocity (0.05-0.15 m s-1) on the space-time yield at stratified flow conditions are investigated, which is the most beneficial operation mode. A performance enhancement of up to 20% compared to the upright stationary trickle-bed reactor is obtained for the operating conditions studied experimentally. Here, operating conditions show highest performance at low inclination angles due to the most favourable mass transfer conditions. Additionally, a hybrid model approach comprising a 3D Eulerian-Eulerian model and a 1D heterogeneous continuum model is proposed to predict the space-time yield of the rotating reactor. Simulations show the capability of the model to properly predict the effect of operating conditions and reactor dimensions.
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