Applied Technologies and Innovations

  Previous Article | Back to Volume | Next Article
  Abstract | References | Citation | Download | Preview | Statistics
Volume 2
Issue 2
Online publication date 2010-08-10
Title The axial mixing influence on the number stages of countercurrent absorbers in absorbing NH3-CO2-H2O mixture in NaCl-H2O system
Author Milovan Jotanovic, Vladan Micic, Goran Tadic
Abstract This paper investigates the influence of axial or longitudinal mixing of stages  on the number stages in a countercurrent absorber in absorbing vapour-gas mixture of NH3-CO2-H2O in the multicomponent system NaCl-H2O.  The number stages in ideal mixing of phases NT and the number of stages which involves axial mixing ND were determined. The authors of this paper conclude that the influence of axial mixing does not affect the number stages in the countercurrent absorber.  Otherwise, absorption in this concrete system is practically present in the process of soda ash production.
Cairns. E.,  Prausnitz. J., 1960. “Longitudinal mixing in packed beds,” Chemical Engineering Science, Vol.12, Issue 1, pp.20-34

Kongto, A., Limtrakul, S. et al., 2005. “Mathematical modeling and simulation for gas-liquid reactors,” Computers and chemical engineering, Vol.29 (11), pp.2461-2473 

Levenspiel, О., 1962. Chemical reaction engineering, John Wiley and Sons, New York 

Levenspiel, O., Smith, W., 1957. “Notes on the diffusion-type model for longitudinal mixing of fluids in flow,” Chemical Engineering Science, Vol.6, pp.227-33

Mecklenburgh, J., Hartland, S., 1983. The theory of bаckmixing, John Wiley and Sons, New York 

Mhaskar, R., 1974. “Effect of backmixing on the performance of bubble column reactors,” Chemical Engineering Science, Vol.29 (4), pp.897-905 

Miyauchi. T., Vermeulen. T., 1963. “Longitudinal dispersion in two-phase continous flow operations,” Industrial and Engineering Chemistry Fundamentals, Vol.2, pp.113–126 

Ramm, V., 1966. Absorbtion of gases (Absorbisiya gazov), Chemistry (Khimiya), Moscow 

Schubert, S., Grunewald, M., Agar, D., 2001. “Enhancement of carbon dioxide absorption into aqueous methyldiethanolamine using immobilised activators,” Chemical Engineering Science, Vol.56 (21), pp.6211-6216

Schultes, M., 2003. “Raschig super-ring: A new fourth generation packing offers new advantages,” Chemical Engineering Research and design, Vol.81 (1), pp.48-57

Wiemann, D., Mewes, D., 2005a. “Calculation of flow fields in two and three-phase bubble columns considering mass transfer,” Chemical Engineering Science, Vol.60, (22), pp.6085-6093 

Wiemann. D., Mewes. D., 2005b. “Prediction of backmixing and mass transfer in bubble columns using a multifluid model,” Ind. Eng. Chem. Res., Vol.44 (14), pp.4959-4967 

Zaiisev, I., Tkach, G.,  Stoev, N., 1986. Soda production (Proizvodstvo sodi), Chemistry (Khimia), Moscow

Keywords Soda ash production, absorption, NaCl-H2O system, NH3-CO2-H2O system, absorber with countercurrent grating stages
Pages 1-8
Download Full PDF Download
  Previous Article | Back to Volume | Next Article
Search in articles
Journal Published articles
ATI 263
Journal Hits
ATI 812581
Journal Downloads
ATI 7767
Total users online -