Straight-chain hydrocarbons Strong acids

Single-component feeds are often used for laboratory studies of this process. However, different components may preferentially require different types of active sites. For example, straight-chain hydrocarbons like hexane typically require strong acid sites, alkyl aromatics like cumene require medium strength, while methanol dehydration requires weak sites. Hence the results with such feeds should be extrapolated with caution. 

Aldehydes and ketones can be reduced to hydrocarbons by the action (a) of amalgamated zinc and concentrated hydrochloric acid, the Clemmensen reduction or (b) of hydrazine, NH2NH2, and a strong base like KCm or potassium teh-butoxide, the Wolff-Kishner reduction. These are particularly important when applied to the al faTryl ketones obtailTed from Friedel-Crafts acylation, since this reaction sequence permits, indirectly, the attachment of straight alkyl chains to the benzene ring. For example ... 

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