FIELD: petrochemical processes.
SUBSTANCE: hydrocarbon batch comprising primary relatively heavy batch boiling above 350°C and secondary relatively light batch boiling approximately below 320°C. Primary batch, comprising at least 50% of the hydrocarbon batch, is subjected to cracking in fluidized-bed reactor in presence of cracking catalyst. Secondary batch, containing C4,5-olefin oligomers with at least 8 carbon atoms, is subjected to cracking with the same cracking catalyst, separately or in mixture with primary batch. Cracking products are fractioned to produce gasoline and propylene.
EFFECT: increased propylene yield.
20 cl, 1 dwg, 1 tbl, 7 ex
