SYSTEM FOR EXTRACTION OF CATALYST OF OXYGENATES CONVERSION IN OLEFINS WITH REACTION SHUT-DOWN TOWER EXPLOITING LOW-TEMPERATURE DRYING CHAMBER WITH FLUIDISED BED

摘要

FIELD: process engineering.SUBSTANCE: invention relates to catalysis, particularly, to extraction of catalyst in conversion of oxygenates into olefins. Proposed method comprises the jobs that follow. Flow of the products of oxygenates conversion into olefins is bypassed into reaction shutdown tower. Bottom flow of said tower containing the catalyst is removed. Bottom flow of said tower is separated to obtain in fact clarified fluid and flow bearing the catalyst. Catalyst-bearing flow is bypassed into drying chamber and dried therein to obtain in fact dry catalyst by mixing it with dry heated gas whereat said gas is heated to 150°C to 250°C. Dried catalyst is bypassed into catalyst regenerator for the latter to be recovered.EFFECT: catalyst extraction.9 cl, 1 dwg