EP 1043384 A2 20001011 - Improved residual oil fluid catalytic cracking process with catalyst having increased metals tolerance
Title (en)
Improved residual oil fluid catalytic cracking process with catalyst having increased metals tolerance
Title (de)
Fluidkatalytisches Krackverfahren mit einen Katalysator mit verbessertem Widerstand gegen Metalle
Title (fr)
Procédé de craquage catalytique en lit fluidisé avec un catalyseur ayant une résistance ameliorée aux métaux
Publication
Application
Priority
US 28866599 A 19990409
Abstract (en)
An improved residual oil fluid catalytic cracking process for reducing catalyst deactivation caused by vanadium and/or sodium deposited on circulating catalyst used in the process from a residual oil feed, which process includes the steps of; contacting a residual oil feed in a fluid catalytic cracking reactor with hot regenerated cracking catalyst under hydrocarbon cracking conditions to convert the residual oil feed into lower molecular weight hydrocarbon product vapors and form a spent catalyst containing carbonaceous deposits including vanadium and/or sodium; separating a majority of the lower molecular weight hydrocarbon product vapors from the spent cracking catalyst to form separated product vapors and separated spent catalyst containing entrained hydrocarbon vapors; processing the separated product vapors into desired product fractions; subjecting the separated spent catalyst to stripping to remove therefrom a majority of the entrained hydrocarbon vapors; contacting the resulting stripped spent catalyst in a regenerator with an oxygen-containing regeneration gas under catalyst regeneration conditions which include a combination of a regeneration temperature and an oxygen level in the regeneration gas which is effective to burn off the spent catalyst a majority of the carbonaceous deposits, while leaving a majority of the vanadium and/or sodium on the catalyst in less than completely oxidized form, and thereby produce a regenerated catalyst having a carbon level reduced from that of the spent catalyst and containing vanadium and/or sodium, a majority of which is in less than the completely oxidized form, and; returning the regenerated catalyst to the reactor. <IMAGE>
IPC 1-7
IPC 8 full level
B01J 23/92 (2006.01); B01J 38/00 (2006.01); B01J 38/14 (2006.01); C10G 11/18 (2006.01)
CPC (source: EP)
C10G 11/182 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1043384 A2 20001011; EP 1043384 A3 20010530; JP 2000319667 A 20001121
DOCDB simple family (application)
EP 00610038 A 20000406; JP 2000113255 A 20000410