Pretreatment method for C.sub.8 aromatic isomerization process

Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By isomerization

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585477, 585482, C07C 522

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active

053211847

ABSTRACT:
A pretreatment method for a C.sub.8 aromatic isomerization process wherein the isomerization catalyst is initially contacted with a C.sub.8 aromatic feedstock under high severity isomerization conditions for a period of time sufficient to deposit a substantial amount to carbonaceous material on the catalyst. After pretreatment, the carbon-laden catalyst continues to be contacted by the C.sub.8 aromatic feedstock under less severe conditions than that of the pretreatment mode of operation.

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patent: 4140624 (1979-02-01), Masologites
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patent: 4899012 (1990-02-01), Sachtler et al.
Meyers, Robert A., Handbook of Refining Petroleum Processes, pp. 5-68 to 5-70, McGraw-Hill, Inc. (1986).

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