Method of establishing combustion of coke deposits

Coke deposits are removed from particulates by combustion in a regenerator 4 by a process in which air is initially used as the oxidant. The combustion gas is subjected to a separation process in separator 6 to remove nitrogen therefrom, and the remaining carbon dioxide-enriched gas stream is recycl...

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Bibliographische Detailangaben
Hauptverfasser:	MENON, RAGHU K, RAMACHANDRAN, RAMAKRISHNAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY 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
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Beschreibung
Zusammenfassung:	Coke deposits are removed from particulates by combustion in a regenerator 4 by a process in which air is initially used as the oxidant. The combustion gas is subjected to a separation process in separator 6 to remove nitrogen therefrom, and the remaining carbon dioxide-enriched gas stream is recycled to the regenerator 4 while substantially pure oxygen is introduced into the regenerator. As the level of carbon dioxide in the system increases, the amount of air being introduced into the regenerator 4 is gradually reduced and, in compensation, the amount of oxygen flowing to the regenerator 4 is gradually increased. Eventually, part or all of the air is replaced by oxygen and carbon dioxide recycle gas, and the levels of oxygen and carbon dioxide are regulated to maintain the desired temperature in the regenerator 4.