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Mathematical Modeling and Simulation of Propylene Absorption Using Membrane Contactors
Author(s) -
Sadeghi Arash,
Hemmati Alireza,
Ghadiri Mehdi,
Shirazian Saeed
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600225
Subject(s) - contactor , absorption (acoustics) , chemical engineering , membrane , propene , petrochemical , dissolution , microporous material , materials science , mass transfer , chemistry , chromatography , organic chemistry , thermodynamics , composite material , catalysis , power (physics) , biochemistry , physics , engineering
Separation of light olefin‐paraffin mixtures having the same carbon number is one of the most energy‐intensive separation processes in petrochemical industry. Gas‐liquid membrane contactors as an alternative to conventional processes have gained increasing interest due to low energy consumption. A 2D comprehensive model was developed to predict the transport and chemical absorption of propylene in a cocurrent microporous membrane contactor. Formations of a complex between propylene and silver ion and dissolution of silver nitrate were considered. With increasing gas flow rate the system efficiency decreases due to the reduction of propylene residence time inside the contactor. As the absorbent amount increases in the tube, both propylene and complex penetrate more deeply into the liquid and a diffusion layer is formed near the gas‐liquid interface.