✦ LIBER ✦

C2. Optimum pressure and concentration gradients in tubular reactors

✍ Scribed by J.G. van de Vusse; H. Voetter

Publisher: Elsevier Science
Year: 1961
Tongue: English
Weight: 708 KB
Volume: 14
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(61)85057-4

No coin nor oath required. For personal study only.

✦ Synopsis

In tubular reactors (or in stirred reactors in series) it is possible to have the conditions vary along the tube. In this way better results can often be obtained. The effect of a pressure gradient is of interest in equilibrium gas reactions where the number of moles increases (e.g. &hydrogenation reactions). High pressures are favourable in the tirst part of the tube, where the reaction mixture is far from equilibrium, whereas low pressures are favourable in the last part, where equilibrium concentrations are approached. It appears that the optimum pressure is roughly proportional to the local reactant concentration. The reactor volume required for a certain conversion is two to three times smaller than it is without a pressure gradient.

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