Liquid-Phase Hydrogenation of Cinnamaldehyde over a Ru−Sn Sol−Gel Catalyst. 1. Evaluation of Mass Transfer via a Combined Experimental/Theoretical Approach

• Published in: Industrial & engineering chemistry research Vol. 43; no. 9; pp. 2030 - 2038
• Main Authors: Hájek, Jan, Murzin, Dmitry Yu
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 28-04-2004
• Subjects: Applied sciences; Catalysis; Catalytic reactions; Chemical engineering; Chemistry; Exact sciences and technology; General and physical chemistry; Heat and mass transfer. Packings, plates; Reactors; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Particle size; Catalytic reaction; Batchwise; Kinetics; Diffusion; Hydrogenation; Supported catalyst; Stirred tank reactor; Mass transfer
• ISSN: 0888-5885; 1520-5045
• DOI: 10.1021/ie0340802

Hydrogenation of cinnamaldehyde over a 5% Ru−5% Sn/SiO2 sol−gel catalyst was investigated in a stirred batch reactor. A combined experimental/theoretical approach was used to elucidate the impact of gas/liquid, liquid/solid, and pore diffusion. To determine the kinetic region area, the catalytic performance at different reaction conditions was evaluated. The complex evaluation presented comprises all important factors such as catalyst mass, stirring speed, liquid load, catalyst particle size, etc., that might contribute to mass-transfer limitations. Theoretical calculations were confirmed by experimental results showing its applicability.