Pyrolysis gasoline after hydrogenation

Table 19.2 Styrene conversion data for hydrogenation of pyrolysis gasoline and synthetic load using commercial catalysts after forced deactivation and r eneration procedures...

Benzene, toluene and xylene can be recovered from pyrolysis gasoline as required. After hydrogenation, principally to saturate diolefins, pyrolysis gasoline is used as a motor fuel and is noted for its high octane rating. 

Table 4.3 shows the composition of a typical pyrolysis gasoline fraction after hydrogenation. 

Table 15.7 Styrene conversion data for pyrolysis gasoline hydrogenation and synthetic load of commercial nickel and palladium catalysts after forced regeneration and shutdown...

Nickel oxide supported on y-alumina is also active and selective with typical pyrolysis gasolines. It can be reactivated very easily at intervals of two to nine months by heating in hydrogen or regenerated by conventional burning of deposits in air when necessary. Replacement is required after about two years. 

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