FIELD: explosives.
SUBSTANCE: invention is related to method for dehydration of alkyl aromatic hydrocarbons, which are selected from at least one of ethyl benzene, propyl benzene, isopropyl benzene and methyl ethyl benzene, including contact of gas flow, which comprises at least one of hydrocarbons, with catalyst of dehydration at the temperature of reaction in direct flow in dehydration reactor with ascending flow, where average time of hydrocarbon contact to catalyst in zone of dehydration reactor makes from 0.5 to 10 seconds, and where average time of catalyst location in dehydration reactor with ascending flow makes from 0.5 to 40 seconds; and transfer of hydrocarbon and catalyst from dehydration reactor with ascending flow into separation device, where average time of hydrocarbon contact with catalyst at the temperature of reaction in separation device makes less than 10 seconds.
EFFECT: increased speed of target products making without reduction of selectivity.
11 cl, 5 dwg
