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Modeling of chemical reactors — XVII Steady state axial heat and mass transfer in tubular reactors Numerical investigation of multiplicity

✍ Scribed by V. Hlavácˇek; H. Hofmann

Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
863 KB
Volume
25
Category
Article
ISSN
0009-2509

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✦ Synopsis

Numerical results are presented in graphical form for a range of parameters where multiple solutions may occur. These results provide valuable material for a further theoretical examination of multiplicity. It is also shown that in multiple cases the Danckwerts boundary conditions are consistent with stirred tank and piston flow respectively. Possibilities of an existence of multiplicity at high P&let numbers are discussed. On the base of a simple analysis an estimation of the coordinates of a trifurcation point is developed, which together with a range of Damkohler numbers where multiplicity can occur are compared with the exact values. It is shown that these criteria are remarkably good. A discussion of the effects of axial mixing in the industrial adiabatic packed beds is presented.

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