TY - JOUR
T1 - Mathematical modeling of absorption accompanied by a non-elementary reversible chemical reaction
AU - Jangara, Hossein
AU - Shayesteh, Keivan
AU - Shahedi Asl, Mehdi
N1 - Publisher Copyright:
© 2020 Institution of Chemical Engineers
PY - 2020/5
Y1 - 2020/5
N2 - The present study aimed to propose a general model for absorption with a non-elementary chemical reaction. The modeling of the system was conducted within the stagnant liquid film surrounding bubbles in the bubble column reactor. The finite difference method was used to solve the governing differential equations. The model was solved for the general reaction orders of components with a general boundary condition. Therefore, it includes all kinetic regimes based on the film theory and is capable of predicting the absorption system with a complex reversible or irreversible chemical reaction. Further, the effects of different parameters such as the equilibrium constant, the concentration of components, and chemical reaction orders on the absorption enhancement were investigated. The results indicated that the initial concentration and reaction order of components can significantly influence the absorption enhancement. Finally, In order to validate the model, the results were compared with those of the previous studies.
AB - The present study aimed to propose a general model for absorption with a non-elementary chemical reaction. The modeling of the system was conducted within the stagnant liquid film surrounding bubbles in the bubble column reactor. The finite difference method was used to solve the governing differential equations. The model was solved for the general reaction orders of components with a general boundary condition. Therefore, it includes all kinetic regimes based on the film theory and is capable of predicting the absorption system with a complex reversible or irreversible chemical reaction. Further, the effects of different parameters such as the equilibrium constant, the concentration of components, and chemical reaction orders on the absorption enhancement were investigated. The results indicated that the initial concentration and reaction order of components can significantly influence the absorption enhancement. Finally, In order to validate the model, the results were compared with those of the previous studies.
KW - Enhancement factor
KW - Mass transfer with reaction
KW - Modeling of chemical absorption
KW - Non-elementary chemical reaction
UR - http://www.scopus.com/inward/record.url?scp=85081653252&partnerID=8YFLogxK
U2 - 10.1016/j.cherd.2020.02.030
DO - 10.1016/j.cherd.2020.02.030
M3 - Article
AN - SCOPUS:85081653252
SN - 0263-8762
VL - 157
SP - 58
EP - 64
JO - Chemical Engineering Research and Design
JF - Chemical Engineering Research and Design
ER -