Kinetics of low-pressure methanol synthesis

The kinetics of low-pressure methanol synthesis, starting from CO, CO 2 and hydrogen over a commercial CuZnAl catalyst, were studied in a spinning basket reactor at p = 15–50 bar and T = 210–245°C. The results show that methanol can be formed from both CO and CO 2. Besides these two reactions the...

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Bibliographic Details
Published in:	Chemical engineering science 1988, Vol.43 (12), p.3185-3195
Main Authors:	Graaf, G.H., Stamhuis, E.J., Beenackers, A.A.C.M.
Format:	Article
Language:	eng
Subjects:	Chemistry Exact sciences and technology Kinetics and mechanisms Organic chemistry Reactivity and mechanisms
Online Access:	Get full text
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Summary:	The kinetics of low-pressure methanol synthesis, starting from CO, CO 2 and hydrogen over a commercial CuZnAl catalyst, were studied in a spinning basket reactor at p = 15–50 bar and T = 210–245°C. The results show that methanol can be formed from both CO and CO 2. Besides these two reactions the water-gas-shift reaction takes place. Based on these three reactions and a dual-site adsorption mechanism, 48 kinetic rate models are derived. Hydrogen is believed to adsorb dissociatively. The experimental results support this assumption. Based on χ 2-statistics and consistency tests a final kinetic rate model is selected. This kinetic model gives a significantly better agreement with the experimental results than kinetic models taken from recent literature.
ISSN:	0009-2509 1873-4405