Device and method for integrating and separating catalytic cracking and steam cracking

• Main Authors: ZHAO BAIREN, SUN LILI, PENG BO
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2024
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; ORGANIC CHEMISTRY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention discloses a device and a method for integrating and separating catalytic cracking and steam cracking. The device comprises a catalytic cracking system, a steam cracking system and a sharing system, the catalytic cracking system comprises a catalytic cracking unit, a fractionation unit, a compression and pre-separation unit and a catalytic debutanization separation unit which are connected in sequence; the steam cracking system comprises a steam cracking unit, a quenching unit, a compression and front depropanization unit and a steam debutanization separation unit which are connected in sequence; the sharing system comprises a first carbon cold separation unit, a second carbon cold separation unit and a third carbon hot separation unit which are connected in sequence; and a C3 outlet of the compression and pre-separation unit and a C3 outlet of the compression and front depropanization unit are jointly connected with an inlet of the CI cold separation unit. According to the technical scheme, the