FIELD: gas industry.;SUBSTANCE: invention relates to an integrated method of trapping CO2, emitted with exhaust gases, coming out of a regeneration zone of a catalytic cracking (FCC) unit, which unit treats a vacuum distillate or atmospheric residue type hydrocarbon cut, by subjecting said fumes to amine treatment in an amine treatment unit (AMN) to eliminate CO2 therefrom, producing HP steam by cooling fumes exiting from regeneration zone, and using in at least one counter-pressure turbine, which actuates not exclusively: a) either an air blower to feed regeneration air (MAB) of FCC unit; b) or cracked gas compressor (WGC); wherein formed BP is used for regeneration of amine in amine treatment unit (AMN), and excess steam HP and BP are recalculated in reducing CO2 emissions.;EFFECT: method improves balance of CO2.;11 cl, 3 dwg, 3 tbl, 3 ex
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