Micromixing effects on complex reactions in a CSTR

✍ Scribed by René David; Jacques Villermaux

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 415 KB
• Volume: 30
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(75)85059-7

✦ Synopsis

Several errors and mistakes are pointed out in a paper published by Rao and Rao under the above title, concerning the influence of micromixing on conversion and yield for consecutive-competing second order reactions.

The influence of the stoichiometric ratio and the existence of limiting conversion and yield for instantaneous reactions with unmixed feed are especially overlooked in their simulations. Several of their plots are erroneous. A correct treatment of these different points is given, using in particular a deterministic micromixing model (IEM) which is found to show definite advantages over random coalescence simulation models.

Under the above title, a paper has been recently published by D. Phaneswara Rao and A. Ramakrishna Rao in this journal [9]. Their paper contains several erroneous statements and mistakes. As we have long been interested in micromixing effects in our Laboratory, both theoretically and experimentally [ l-51, we would like to bring up the necessary corrections to Rao and Rao's findings.

Rao and Rao (abbreviated RR below) deal with consecutive-competing second order reactions in a single ideally macromixed CSTR. The reaction scheme is % A+B-R, R+Bliz s.