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The Effects of Mixing, Reaction Rates, and Stoichiometry on Yield for Mixing Sensitive Reactions—Part I : Model Development
Joint Authors
Kostiuk, Larry W.
Kresta, Suzanne M.
Shah, Syed Imran A.
Source
International Journal of Chemical Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-17
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
There are two classes of mixing sensitive reactions: competitive-consecutive and competitive-parallel.
The yield of desired product from these coupled reactions depends on how fast the reactants are brought together.
Recent experimental results have suggested that the mixing effect may depend strongly on the stoichiometry of the reactions.
To investigate this, a 1D, dimensionless, reaction-diffusion model at the micromixing scale was developed.
Assuming constant mass concentration and mass diffusivities, systems of PDE's were derived on a mass fraction basis for both types of reactions.
Two dimensionless reaction rate ratios and a single general Damköhler number emerged from the analysis.
The resulting dimensionless equations were used to investigate the effects of mixing, reaction rate ratio, and reaction stoichiometry.
As expected, decreasing either the striation thickness or the dimensionless rate ratio maximizes yield, the reaction stoichiometry has a considerable effect on yield, and all three variables interact strongly.
American Psychological Association (APA)
Shah, Syed Imran A.& Kostiuk, Larry W.& Kresta, Suzanne M.. 2012. The Effects of Mixing, Reaction Rates, and Stoichiometry on Yield for Mixing Sensitive Reactions—Part I : Model Development. International Journal of Chemical Engineering،Vol. 2012, no. 2012, pp.1-16.
https://search.emarefa.net/detail/BIM-495737
Modern Language Association (MLA)
Shah, Syed Imran A.…[et al.]. The Effects of Mixing, Reaction Rates, and Stoichiometry on Yield for Mixing Sensitive Reactions—Part I : Model Development. International Journal of Chemical Engineering No. 2012 (2012), pp.1-16.
https://search.emarefa.net/detail/BIM-495737
American Medical Association (AMA)
Shah, Syed Imran A.& Kostiuk, Larry W.& Kresta, Suzanne M.. The Effects of Mixing, Reaction Rates, and Stoichiometry on Yield for Mixing Sensitive Reactions—Part I : Model Development. International Journal of Chemical Engineering. 2012. Vol. 2012, no. 2012, pp.1-16.
https://search.emarefa.net/detail/BIM-495737
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-495737