Design and scale-up of Venturi-tube gas distributors for bubble column reactors

[img]PDF - Authorized users only
Language: English
522Kb
Title:Design and scale-up of Venturi-tube gas distributors for bubble column reactors
Creators:
Zahradník, Jindřich
Rylek, Milan
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 56, 3, pp. 619-635

Abstract

General principles of ejector distributors performance are surveyed and demonstrated for two particular cases of Venturi tubes commonly employed for gas dispersion in tower reactors with forced liquid circulation. Design recommendations for the two types of Venturi-tube gas distributors are presented and a general method is outlined for ejector distributors scale-up, based on the decisive effect of energy dissipation rate on the distributors performance. As an illustration, the specific case of Venturi-tube gas distributor design for an industrial reactor for catalytic hydrogenation of rape-seed oil is treated in detail. The procedure included design of a small-scale laboratory reactor for kinetic experiments at real process conditions (scale-down step) and subsequent ejector distributor scale up to dimensions corresponding to the industrial reactor (vessel diameter 1.6 m, effective reactor volume ~ 5 m<sup>3</sup>). Comparison with other modes of gas dispersion proved superiority of Venturi-tube distributors both on the laboratory- and industrial-scale level, regarding the overall rate of reaction process achieved and/or catalyst load requirements.

Title:Design and scale-up of Venturi-tube gas distributors for bubble column reactors
Creators:
Zahradník, Jindřich
Rylek, Milan
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:56
Number:3
Page Range:pp. 619-635
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19910619UNSPECIFIED
ID Code:4977
Item Type:Article
Deposited On:22 Feb 2010 11:27
Last Modified:22 Feb 2010 10:28

Citation

Zahradník, Jindřich; Rylek, Milan (1991) Design and scale-up of Venturi-tube gas distributors for bubble column reactors. Collection of Czechoslovak Chemical Communications, 56 (3). pp. 619-635. ISSN 0010-0765

Repository Staff Only: item control page