| Autor: |
P.S. Protsidim, K.P. Lavrovskii, V.B. Titov, N.A. Shimanko, D.V. Makarov, Yu.L. Fish |
| Rok vydání: |
1969 |
| Předmět: |
|
| Zdroj: |
Petroleum Chemistry U.S.S.R.. 9:40-48 |
| ISSN: |
0031-6458 |
| DOI: |
10.1016/0031-6458(69)90015-x |
| Popis: |
PRODUCTS of partial hydrogenation of terphenyl isomers are used as heat transfer media in the chemical industry and in atomic power engineering, therefore a study of terphenyl conversions during hydrogenation has practical and scientific interest. There is little information in the literature concerning conversions of terphenyls with nickel [1], platinum [2], copper chromate and nickel catalysts [3]. The use of these catalysts for hydrogenation of hydrocarbon mixtures containing sulphur compounds is difficult because of rapid deactivation. An alumina-cobalt oxide-molybdenum oxide catalyst is the most suitable in this case. The possibility of using this catalyst for hydrogenation of terphenyl mixtures has been previously suggested [4]. The authors of this study used it for the hydrogenation of vat residues (by-product of manufacture of diphenyl from benzene). The hydrogenated product (250-400°C fraction) had high radiation, thermal stability and a low solidification point. Chromatographic analysis of the hydrogenated product (238-370 ° fraction) showed that the main cbmponents were hydrogenated derivatives of m-terphenyl (55.0%), m-terphenyl (15.7%) and o-terphenyl (11.6%)[5]. This paper reports investigations of the conversions of o-, mand p-terphenyls under conditions of destructive hydrogenation with an alumina-cobalt oxide-molybdenum oxide catalyst. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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