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- W1981961521 abstract "It is well known that rhenium stabilizes a commercial platinum reforming catalyst; however, the exact role of Re is still in doubt. The function of Re was investigated by determining and then comparing the fouling characteristics of two model reforming reactions catalyzed by bifunctional Pt and PtRe catalysts. The methylcyclohexane (MCH) dehydrogenation reaction was used to probe for changes in the metallic function and the methylcyclopentane (MCP) dehydroisomerization reaction was used to determine variations in the acidic function. Both sulfided and unsulfided catalysts were investigated. Presulfiding either a Pt or PtRe catalyst altered significantly the observed reaction rates and deactivation characteristics of the metallic function. The addition of Re to a Pt reforming catalyst greatly reduced the rate of those structure-sensitive secondary reactions catalyzed by the metallic function: toluene dealkylation, MCP ring opening, and long-term MCH fouling. The addition of Re, however, did not affect the structure-insensitive MCH reaction or the initial MCP fouling rate; also, little or no affect was noted in the MCP fouling characteristics. The results presented suggest that there is a metal-metal interaction between Pt and Re." @default.
- W1981961521 created "2016-06-24" @default.
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- W1981961521 date "1982-08-01" @default.
- W1981961521 modified "2023-10-05" @default.
- W1981961521 title "Fouling of a platinum-rhenium reforming catalyst using model reforming reactions" @default.
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- W1981961521 doi "https://doi.org/10.1016/0021-9517(82)90257-3" @default.
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