Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 60, Issue 18, Pages 6863-6867Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.0c05307
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Funding
- MuniCat - Strategic Alliance of Clariant
- TUM
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This study used simulation technology to investigate the impact of catalytic pellet shrinkage on the bed structure and flow dynamics within random packings, revealing higher voidage and lower pressure drop values in the packings after pellet shrinkage. The feasibility of simulating pellet shrinkage within random packings was demonstrated, indicating its potential for reactor simulation.
Catalytic pellets may experience volume contraction during reductive activation. Although known and easily accessible as the reduced bed height within industrial fixed-bed reactors, the effects on the bed structure are lacking discussion. A simulation routine is presented to predict the effects of pellet shrinkage within random packings on the pellet arrangement and flow hydrodynamics, using Blender for pellet deposition and shrinkage and OpenFOAM for flow simulation. After pellet shrinkage, packings show a high mean voidage and values for pressure drop below expectation. The feasibility of simulating pellet shrinkage within random packings is demonstrated, indicating its potential for reactor simulation.
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