Cyclohexane transformations over metal oxide catalysts. 2. Selective cyclohexane ring opening to form n-hexane over mono- and bimetallic rhodium catalysts |
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Authors: | Vasina T V Masloboishchikova O V Khelkovskaya-Sergeeva E G Kustov L M Zeuthen P |
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Institution: | (1) Russian Academy of Sciences, N. D. Zelinsky Institute of Organic Chemistry, 47 Leninsky prosp., 119991 Moscow, Russian Federation;(2) Haldor Topsoe À/S, DK-2800 Lyngby, Denmark |
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Abstract: | The activity of monometallic Rh and Pt catalysts and bimetallic Pt—Rh catalysts on oxide supports in cyclohexane ring opening to form n-hexane was studied. The Rh-containing catalysts are highly active and selective in this reaction. Cyclohexane dehydrogenation predominates in the case of the Pt catalysts. The use of the bimetallic alumina-supported Pt—Rh catalysts allows one to minimize the contribution of cyclohexane cracking and to enhance the selectivity for n-hexane with the yield of the latter slightly depending on the metal ratio in the bimetallic system under the experimental conditions. |
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Keywords: | cyclohexane n-hexane ring opening hydrogenolysis rhodium platinum bimetallic catalysts |
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