Synthesis of 1,1-Dimethoxyethane in Fixed Bed Reactor

• Type: Article in International Scientific Journal
• Date: 2006

Authors

Ganesh Gandi (Author) FEUP; Viviana Silva (Author) FEUP; Alírio Rodrigues (Author) FEUP

Journal

Title: Industrial & Engineering Chemistry Research

Vol. 45 No. 6

Pages: 2032-2039

ISSN: 0888-5885

Publisher: American Chemical Society

Indexing

ISI Proceedings

Scientific classification

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Resumo (PT): The synthesis of dimethoxyethane using acetaldehyde and methanol as raw-material on a fixed bed adsorptive reactor packed with Amberlyst-15 resin was studied. Dynamic binary adsorption experiments were carried out in the absence of reaction at 293 K in a laboratory scale column. The parameters of the Langmuir type multicomponent adsorption isotherms were determined, by minimizing the difference between the experimental and calculated stoic hiometric times of breakthrough curves. The mathematical model used to describe the adsorptive reactor dynamic behavior includes axial dispersion, mass transfer resistances, reaction kinetics, and multicomponent Langmuir adsorption isotherms. The mass transport phenomena through the external film and micropores were not taken into account explicitly; however, they were lumped in the global mass transfer coefficient. The model predicts the experimental results obtained for the reaction and regeneration experiments well, in terms of the outlet molar concentration of the species history.

Abstract (EN): The synthesis of dimethoxyethane using acetaldehyde and methanol as raw-material on a fixed bed adsorptive reactor packed with Amberlyst-15 resin was studied. Dynamic binary adsorption experiments were carried out in the absence of reaction at 293 K in a laboratory scale column. The parameters of the Langmuir type multicomponent adsorption isotherms were determined, by minimizing the difference between the experimental and calculated stoic hiometric times of breakthrough curves. The mathematical model used to describe the adsorptive reactor dynamic behavior includes axial dispersion, mass transfer resistances, reaction kinetics, and multicomponent Langmuir adsorption isotherms. The mass transport phenomena through the external film and micropores were not taken into account explicitly; however, they were lumped in the global mass transfer coefficient. The model predicts the experimental results obtained for the reaction and regeneration experiments well, in terms of the outlet molar concentration of the species history.

Language: Portuguese

Type (Professor's evaluation): Scientific