FIELD: mining.
SUBSTANCE: method of treatment consists in removing resins from hydrocarbon load wherein not less, than 80% compounds have boiling temperature above or equal to 340°C; according to method load is transferred to stage of fractionating; at least one heavy and at least one light fractions are extracted at this stage; at least part of heavy fraction is transferred to stage of extraction, whereat resins contained in said heavy fraction are extracted; further purified fraction is extracted and mixture is produced; said mixture contains at least part of purified fraction produced at stage of extraction and at least one light fraction produced at stage of fractionating; produced mixture is sent to stage of cracking.
EFFECT: method reduces capital losses at maintaining high level of cracking procedure which is evidenced by increased operation life of used catalyst and by more efficient working conditions.
15 cl, 2 ex, 1 dwg
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