HIGH-EFFICIENCY COMBUSTION DEVICE AND FLUIDIZED CATALYTIC CRACKING PROCESS FOR THE PRODUCTION OF LIGHT OLEFINS

• Main Authors: FURTADO RAMOS, José Geraldo, PATRICIO JUNIOR, Nelson, FREIRE SANDES, Emmanuel, MOZART FUSCO, José, DOS SANTOS LAGES, Naiara, SERFATY, Ricardo, ALIATTI, Geovani
• Format: Patent
• Language: English; French; German
• Published: 06.11.2019
• Subjects: AIR; BLASTING; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMBUSTION APPARATUS; COMBUSTION PROCESSES; CRACKING HYDROCARBON OILS; FUELS; HEATING; LIGHTING; LUBRICANTS; MECHANICAL ENGINEERING; METALLURGY; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; MINERAL WAXES; 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; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING; WEAPONS

The present invention relates to a combustion device for meeting the energy demand of processes for producing light olefins (ethylene and propene) in fluidized-bed catalytic cracking units. Said combustion device is used to burn heating oil and to keep burning the coke deposited on the catalyst, with a view to heating it to meet the energy demand of the reaction, combustion taking place smoothly and uniformly, preventing the formation of hotspots within the catalytic bed and in the dilute phase following combustion (afterburning), thereby minimizing deactivation of the catalyst and the risk of damage to the equipment inside of the combustion device.