Method and process for converting the ethylene present in the overhead effluent from a FCC in a manner such as to increase the propylene production

• Main Authors: Coupard, Vincent, Fischer, Beatrice
• Format: Patent
• Language: English
• Published: 08.10.2019
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; BLASTING; CHEMISTRY; COMBINED HEATING AND REFRIGERATION SYSTEMS; CRACKING HYDROCARBON OILS; FUELS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS; LUBRICANTS; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; METALLURGY; MINERAL WAXES; MIXTURES BY PRESSURE AND COLD TREATMENT; ORGANIC CHEMISTRY; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; 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; REFRIGERATION OR COOLING; SEPARATION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TRANSPORTING; WEAPONS

A gaseous fraction leaving overhead from a fractionation column of a catalytic cracking unit (FCC) is fractionated using a unit for the conversion of ethylene into propylene, in order to upgrade the ethylene contained in the fuel gas.