METHOD FOR STABILIZING CATALYST ACTIVITY DURING MTO UNIT OPERATION

A method for maintaining the activity of silicoaluminophosphate (SAPO) molecular sieve catalyst particles during oxygenate to olefin conversion reactions. After regeneration of SAPO catalyst particles, the regenerated particles are mixed with particles having coke on their surface in a manner that m...

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Hauptverfasser:	FUNG, SHUN, C, STROHMAIER, KARL, G, HALL, RICHARD, B, KOCHKAR, HAFEDH, CLEM, KENNETH, R, COUTE, NICOLAS, P
Format:	Patent
Sprache:	eng ; fre
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:	A method for maintaining the activity of silicoaluminophosphate (SAPO) molecular sieve catalyst particles during oxygenate to olefin conversion reactions. After regeneration of SAPO catalyst particles, the regenerated particles are mixed with particles having coke on their surface in a manner that maintains their catalytic activity at a predetermined level. Procédé pour maintenir l'activité de particules de catalyseur à tamis moléculaire à silicoaluminophosphate pendant les réactions de conversion d'oxygénate en oléfine. Après la régénération de particules de catalyseur SAPO, les particules régénérées sont mélangées avec des particules comportant du coke à leur surface, d'une façon qui permet de maintenir l'activité catalytique à un niveau prédéterminée.