FIELD: oil and gas industry.
SUBSTANCE: present invention relates to versions of methods of catalytic conversion for improvement of composition of target products. High-grade initial oil product contacts with the hot regenerated catalyst in the reactor to conduct cracking reaction, the reaction product is separated from the exhaust catalyst to be regenerated, then the reaction product is supplied to the separation system, and the exhaust catalyst to be regenerated is steamed, regenerated and recirculated according to the method, and the hot regenerated catalyst has uniform activity distribution.
EFFECT: more than 30% increase of isobutene content in the liquefied petroleum gas (LPG) and the olefin content in gasoline, decrease of yield of dry gas and coke.
20 cl, 2 dwg, 8 tbl, 12 ex
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