Chemistry of hydrocarbon compounds – Aromatic compound synthesis – Having alkenyl moiety – e.g. – styrene – etc.
Patent
1977-04-26
1980-10-21
Davis, C.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
Having alkenyl moiety, e.g., styrene, etc.
C07C 538
Patent
active
042296030
ABSTRACT:
A method for dehydrogenating an alkyl aromatic compound, particularly, ethylbenzene or ethyl toluene, to its corresponding vinyl aromatic derivative, styrene or methyl styrene, respectively, in which the alkyl aromatic compound and its normally attendant diluent, stream or water, are preheated to a temperature below which any substantial thermal reaction temperature of the alkyl aromatic compound occurs, viz., 450.degree. to about 500.degree. C., and introduced into a catalytic bed of a reactor and thereafter contacted and mixed in said catalytic bed with a quantity of steam in an amount and at a temperature to raise the alkyl aromatic compound to the catalytic dehydrogenation temperature. The steam introduced into the catalyst bed, in a ratio less than 3 to 1 to about 0.7 to 1, steam to hydrocarbon passes through the bed in heat exchange relationship to the catalyst and the reacting gases prior to contacting and mixing with the alkyl aromatic compound in the bed.
REFERENCES:
patent: 2461331 (1949-02-01), Leesemann
patent: 2683180 (1954-07-01), Amos et al.
Baker G. R.
Davis C.
The Dow Chemical Company
LandOfFree
Method of dehydrogenation of alkyl aromatics to alkenyl aromatic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of dehydrogenation of alkyl aromatics to alkenyl aromatic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of dehydrogenation of alkyl aromatics to alkenyl aromatic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2024164