Thermodynamic and kinetic studies for synthesis of the acetal (1,1-diethoxybutane) catalyzed by Amberlyst 47 ion-exchange resin

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Mehabub Rahaman (Author) Other; Nuno S. Graça (Author) FEUP; Carla S. M. Pereira (Author) FEUP; Alírio E. Rodrigues (Author) FEUP

Journal

Title: Chemical Engineering Journal

Vol. 264

Pages: 258-267

ISSN: 1385-8947

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

INSPEC

Associated Projects

LA 20 - PROJECTO ESTRATÉGICO - LA 20 - 2013-2014

LA 20 - Projeto Estratégico-LA 20 - 2011-2012

Other information

Authenticus ID: P-00A-20G

DOI: 10.1016/j.cej.2014.11.077

Abstract (EN): The synthesis of 1,1-diethoxybutane was carried out in a batch reactor from a liquid phase reaction between ethanol and butyraldehyde using Amberlyst 47 as the solid acid catalyst to obtain thermodynamic, kinetic and adsorption parameters. The reaction equilibrium constant was experimentally determined in the temperature range 293.15-323.15 K. The standard properties of the reaction at 298.15 K were also estimated. The effects of temperature, molar ratio of ethanol to butyraldehyde, stirrer speed, and catalyst loading on the reaction rate were investigated. Kinetic experiments were performed in the same temperature range at 6 bar. A two-parameter kinetic law based on a Langmuir-Hinshel-wood -Hougen-Watson rate expression, using activity coefficients from the UNIFAC method, was used to predict the experimental data of the heterogeneous liquid-phase reaction. The kinetic parameters were determined based on the kinetic model. The model predicts the kinetic data very well and it will be useful for design and optimization of integrated reaction separation processes.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10