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Yield studies in packed tubular reactors: Part 1 ‐ Mathematical model for design and analysis
Author(s) -
Mickley H. S.,
Letts K. W. M.
Publication year - 1963
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450410610
Subject(s) - heat transfer , yield (engineering) , thermal conduction , mechanics , flow (mathematics) , thermodynamics , packed bed , diffusion , materials science , mathematics , engineering , physics , chemical engineering
The prediction of chemical yield and productivity for packed tubular reactors is examined in two articles. A mathematical model and digital computing scheme are presented for reactors with several reactions, large heat effects, and heat exchange at the wall. Case studies show that yield loss depends strongly on the dimensions and flow rate adopted in reactor design. Part 1 presents a steady state reactor model based on material and energy balances formulated in partial differential equations on radial and axial space coordinates. The model allows for multiple reactions with arbitrary rate expressions and stoichiometry, axial bulk flow, radial effective diffusion and conduction, and a heat transfer resistance at the wall. Problems of scale‐up and similitude are discussed in terms of the model. Part 2 presents the numerical computing scheme and case studies.*