EP 0988354 A1 20000329 - HYDROCARBON CRACKING WITH POSITIVE REACTOR TEMPERATURE GRADIENT
Title (en)
HYDROCARBON CRACKING WITH POSITIVE REACTOR TEMPERATURE GRADIENT
Title (de)
KOHLENWASSERSTOFKRACKUNG MIT POSITIVEN REAKTOR-TEMPERATURGRADIENT
Title (fr)
CRAQUAGE D'HYDROCARBURES A GRADIENT DE TEMPERATURE DE REACTEUR POSITIF
Publication
Application
Priority
- US 9811875 W 19980608
- US 87258597 A 19970610
Abstract (en)
[origin: WO9856873A1] The invention provides an improvement in processes for cracking hydrocarbons to prime olefins, ethylene and propylene, which comprises applying a positive temperature gradient across a catalyst contact zone. The temperature gradient may be uniform or stepwise, may be one reactor or a series of reactors so long as at least one down stream cracking zone is operated at a higher temperature than an upstream zone.
IPC 1-7
IPC 8 full level
C07B 61/00 (2006.01); C07C 4/06 (2006.01); C07C 11/04 (2006.01); C07C 11/06 (2006.01); C10G 11/00 (2006.01); C10G 11/05 (2006.01); C10G 51/02 (2006.01)
CPC (source: EP)
C07C 4/06 (2013.01); C07C 2529/08 (2013.01); C07C 2529/18 (2013.01); C07C 2529/40 (2013.01); C07C 2529/50 (2013.01); C07C 2529/60 (2013.01); C07C 2529/65 (2013.01); C07C 2529/70 (2013.01); C07C 2529/86 (2013.01); C07C 2529/87 (2013.01); C07C 2529/88 (2013.01); C07C 2529/89 (2013.01); C10G 2400/20 (2013.01)
Citation (search report)
See references of WO 9856873A1
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
WO 9856873 A1 19981217; AU 7828598 A 19981230; CA 2290460 A1 19981217; CN 1259983 A 20000712; EP 0988354 A1 20000329; JP 2002504169 A 20020205
DOCDB simple family (application)
US 9811875 W 19980608; AU 7828598 A 19980608; CA 2290460 A 19980608; CN 98805992 A 19980608; EP 98926448 A 19980608; JP 50306699 A 19980608