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Liquid-phase hydrodechlorination of chlorobenzene over palladium-supported catalysts: Influence of HCl formation and NaOH addition

✍ Scribed by M.A Aramendı́a; V Boráu; I.M Garcı́a; C Jiménez; F Lafont; A Marinas; J.M Marinas; F.J Urbano

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
167 KB
Volume
184
Category
Article
ISSN
1381-1169

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✦ Synopsis

The influence of HCl production and NaOH addition on catalytic activity in the liquid-phase hydrodechlorination of chlorobenzene over palladium-supported catalysts was studied. The rate of dehydrochlorination reaction falls with time owing to the poisoning effect of HCl gradually formed as by-product. A partial reaction order of -1 in HCl was found over the concentration range 0.05-0.3 M. The addition of NaOH as a proton acceptor was found to have a favourable effect only with the most disperse catalysts-by contrast, the alkali had an adverse effect on the activity of the least disperse solids.

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