Selective hydrogenation on palladium-containing catalysts of byproduct phenylacetylene present in industrial fractions of styrene

The process of liquid-phase hydrogenation of the phenylacetylene byproduct in the industrial styrene fractions formed in different styrene manufacture stages at OAO Salavatnefteorgsintez was studied on specimens of the palladium-containing G-58E, APKGS-20E2, and KSVK catalysts. It was found that the...

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Bibliographic Details
Published in:Petroleum chemistry 2009-09, Vol.49 (5), p.360-365
Main Authors: Basimova, R. A., Pavlov, M. L., Myachin, S. I., Prokopenko, A. V., Askarova, A. V., Kutepov, B. I., Sychkova, S. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
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Summary:The process of liquid-phase hydrogenation of the phenylacetylene byproduct in the industrial styrene fractions formed in different styrene manufacture stages at OAO Salavatnefteorgsintez was studied on specimens of the palladium-containing G-58E, APKGS-20E2, and KSVK catalysts. It was found that the KVSK catalyst, which is a silica glass-fiber matrix containing 0.2 wt % of dispersed palladium, was the most effective in the selective hydrogenation at atmospheric pressure and temperatures of 20–30°C of phenylacetylene present in the industrial fractions of styrene. It was shown that the minimal loss of styrene is attained in the case of phenylacetylene hydrogenation in the hydrocarbon condensate fraction.
ISSN:0965-5441
1555-6239
DOI:10.1134/S096554410905003X