FLUID BED COKING PROCESS WITH DECOUPLED COKING ZONE AND STRIPPING ZONE

A fluid coking unit for converting a heavy oil feed to lower boiling products by thermal has a centrally-apertured annular baffle at the top of the stripping zone below the coking zone to inhibit recirculation of solid particles from the stripping zone to the coking zone. By inhibiting recirculation...

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Bibliographic Details
Main Authors HUANG, YI, EN, HEALY, TIMOTHY, M, RAICH, BRENDA, ANNE, MARTIN, ZACHARY, ROBERT, DU, BING, BERNATZ, FRITZ, A
Format Patent
LanguageEnglish
French
Published 12.09.2014
Subjects
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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Summary:A fluid coking unit for converting a heavy oil feed to lower boiling products by thermal has a centrally-apertured annular baffle at the top of the stripping zone below the coking zone to inhibit recirculation of solid particles from the stripping zone to the coking zone. By inhibiting recirculation of the particles from the stripping zone to the coking zone, the temperatures of the two zones are effectively decoupled, enabling the coking zone to be run at a lower temperature than the stripping zone to increase the yield of liquid products. L'invention concerne une unité de cokéfaction à lit fluide destinée à convertir thermiquement une alimentation en pétrole lourd en produits à point d'ébullition plus bas, présentant une chicane annulaire à ouverture centrale en haut de la zone d'épuisement, sous la zone de cokéfaction pour inhiber la recirculation de particules solides de la zone d'épuisement vers la zone de cokéfaction. Par l'inhibition de la recirculation des particules de la zone d'épuisement vers la zone de cokéfaction, les températures des deux zones sont effectivement découplées, ce qui permet l'exploitation de la zone de cokéfaction à une température plus basse que celle de la zone d'épuisement, en vue d'augmenter le rendement en produits liquides.
Bibliography:Application Number: WO2014US17533