Dealkylation toluene

The same commercial Bi—Mo—P—O catalyst was used in a study by Van der Wiele [347], which included the oxidation of the xylenes at 400— 500° C. In contrast to the oxidation of toluene, dealkylation cannot be neglected. Table 33 presents an example of the product distribution at a 71—74% conversion level for both the xylenes and toluene. Remarkably, substantial amounts of the dialdehyde are only formed from p-xylene, while an enhanced benzene production is found in the case of o-xylene. The reaction schemes shown on p. 208 are proposed the combustion reactions, applicable to each component in the scheme are left out for simplicity. 

The mechanical flowsheet of the reaction section of a toluene dealkylation unit in Figure 2.5 shows all instrumentation, including indicators and transmitters. The clutter on the diagram is minimized by tabulating the design and operating conditions of the major equipment below the diagram. 

HYDROCRACKING HYDRODESULFURIZATION TOLUENE DEALKYLATION CYCLOHEXANE XYLENES ISOMERIZATION HYDROTREATING OF PYROLYSIS GASOLINE HYDROFINING... 

Toluene Dealkylation and Methyl Redistribution to Benzene and Xylenes... 

Third are those petrochemicals whose value is set primarily by chemical competition, but their direct interaction with the gasoline pool has a buffering effect on their price changes. Benzene, particularly in its relationship to toluene through toluene dealkylation, falls in this category. 

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