A study of black liquor oxidation in towers packed with asbestos cement plates
Article first published online: 21 FEB 2011
Copyright © 1958 Canadian Society for Chemical Engineering
The Canadian Journal of Chemical Engineering
Volume 36, Issue 2, pages 69–72, April 1958
How to Cite
Murray, F. E. (1958), A study of black liquor oxidation in towers packed with asbestos cement plates. Can. J. Chem. Eng., 36: 69–72. doi: 10.1002/cjce.5450360203
- Issue published online: 21 FEB 2011
- Article first published online: 21 FEB 2011
- Manuscript Received: 13 DEC 1957
- British Columbia Research Council, University of British Columbia, Vancouver 8, B.C.
The process of black-liquor oxidation is treated theoretically and an equation is derived for design purposes. Capacity coefficients were determined experimentally for two different arrangements of asbestos-cement packing sheets. Data include those obtained from a study of a full-scale commercial oxidation unit as well as those from an investigation using a pilot-scale experimental tower with a modified arrangement of asbestos-cement packing. Results from the pilot-scale study indicate that the modified packing yields higher capacity coefficients than the packing in the full-scale unit although the mass-transfer coefficients are very similar for both packings using the pilot-scale tower under rigorously controlled flow conditions, it was found that the capacity coefficients increase with increase in liquor flow rate and are virtually unaffected by changes in air-flow rate when this is sufficiently high to provide adequate oxygen for the reaction. The significance of the experimental results is discussed in detail.