๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Evaluation of models for tubular, laminar flow reactors

โœ Scribed by Theodore S. Andersen; James Coull

Publisher
American Institute of Chemical Engineers
Year
1970
Tongue
English
Weight
981 KB
Volume
16
Category
Article
ISSN
0001-1541

No coin nor oath required. For personal study only.

โœฆ Synopsis

Abstract

Significant error can result when the plug flow model is applied to the analysis or design of luminar flow reactors due to nonconstant radial profiles of velocity, composition, and temperature.

An analysis and comparison of suitable models for the nonisothermal, homogeneous, firstโ€order, irreversible, laminar, gas flow reactor has shown the finiteโ€difference solution for radial profiles to be superior to the powerโ€series approximation of radial temperature and composition profiles.

New capabilities of the present computer solution include isothermal or adiabatic wall, dilute or concentrated feed, any stoichiometric productโ€toโ€reactant ratio. Chapmanโ€Enskog model for gas diffusivity, calculation of both heat transfer parameters, and a correction factor to apply to plug flow calculations.

The new, improved computer solution may be used in the basic design or analysis of tubular, laminar flow reactors.

๐Ÿ“œ SIMILAR VOLUMES

Purely convective models for tubular rea
Purely convective models for tubular reactors with non-Newtonian flow
โœ Frank T. Osborne ๐Ÿ“‚ Article ๐Ÿ“… 1975 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 629 KB

A model relating non-Newtonian laminar flow reactor performance to a velocity profile index is developed. Any of four commonly used tracer displacement techniques can be used to obtain an empirical profile index if rheological properties are not accurately known. First order conversion can ordinaril

A stochastic axial dispersion model for
A stochastic axial dispersion model for tubular flow reactors
โœ J.R. Too; L.T. Fan; R. Nassar ๐Ÿ“‚ Article ๐Ÿ“… 1986 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 663 KB

The continuous limit of a general random walk gives rise to the stochastic or Kolmogorov diffusion form of an axial dispersion model for tubular flow reactors. The resultant eauation is different from the Kolmogorov diffusion equations available in the literature, in that it includes a berm to accou

Modelling of a tubular catalytic reactor
Modelling of a tubular catalytic reactor with flow reversal
โœ J. ล˜ehรกฤek; M. Kubรญฤek; M. Marek ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 414 KB

A two-phase, one-dimensional model of catalytic fixed-bed reactor with periodic flow reversal is studied numerically. In addition to well-known behaviour. i.e. the presence of a pair of spatially symmetric temperature profiles at the ends of respective flow reversal half-periods, the nonsymmetric pa