Share

HEAT EFFECTS IN ADSORPTION COLUMN DYNAMICS. 1. COMPARISON OF ONE- AND TWO-DIMENSIONAL MODELS.

Author(s) : FAROOQ S., RUTHVEN D. M.

Type of article: Article

Summary

A TWO-DIMENSIONAL MODEL HAS BEEN DEVELOPED TO INVESTIGATE THE DISPERSIVE EFFECT OF HEAT, INCLUDING THE EFFECT OF A RADIAL TEMPERATURE GRADIENT, ON ADSORPTION COLUMN DYNAMICS. THE FORM OF THE BREAKTHROUGH CURVES CAN BE WELL REPRESENTED BY THE ISOTHERMAL DISPERSED PLUG FLOW MODEL USING AN APPROPRIATELY MODIFIED DISPERSION COEFFICIENT. WHEN THE NATURAL VELOCITY OF THE TEMPERATURE WAVE IS LOWER THAN THAT OF THE CONCENTRATION WAVE A SIMPLE ONE-DIMENSIONAL MODEL WITH HEAT TRANSFER TO THE COLUMN WALL PROVIDES A GOOD PREDICTION OF THE DYNAMIC BEHAVIOUR. WHEN THE THERMAL FRONT LEADS TO THE CONCENTRATION WAVE, THE ONE-DIMENSIONAL MODEL OVERPREDICTS THE DISPERSION. TO OBTAIN AN ACCURATE PREDICTION THE USE OF THE TWO-DIMENSIONAL MODEL IS REQUIRED.

Details

  • Original title: HEAT EFFECTS IN ADSORPTION COLUMN DYNAMICS. 1. COMPARISON OF ONE- AND TWO-DIMENSIONAL MODELS.
  • Record ID : 1991-1149
  • Languages: English
  • Source: Ind. eng. Chem. Res. - vol. 29 - n. 6
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (1)
See the source

Indexing