EP 0245124 A1 19871111 - Combined process for hydroreforming and hydroisomerization.
Title (en)
Combined process for hydroreforming and hydroisomerization.
Title (de)
Kombiniertes Verfahren für Hydroreformierung und Hydroisomerisierung.
Title (fr)
Procédé combiné d'hydroréformage et d'hydroisomérisation.
Publication
Application
Priority
FR 8605568 A 19860416
Abstract (en)
[origin: EP0245124B1] 1. A combined process for heavy naphtha hydroreforming and light naphtha hydroisomerization, wherein a first charge, consisting in major part of a heavy naphtha, is fed, through at least one heating zone, to at least two catalytic hydroforming zones arranged in series, the effluent from each hydroreforming zone, except the effluent from the last reforming zone wherethrough passes the charge, also circulating through at least one heating zone, the effluent from the last reforming zone being subjected to at least one fractionation so as to obtain a reformate and a hydrogen containing gas, a portion of said hydrogen being recycled to the hydroreforming zones, another portion of said hydrogen being admixed with a second charge consisting in major part of a light naphtha, the resultant mixture being preheated and then introduced into a catalytic hydroisomerization zone, the reformate and the effluent from the hydroisomerization zone being collected together and subjected to fractionation in the same stabilization column in order to obtain an improved isomerizate and reformate mixture, said process further comprising the use in the hydroisomerization zone of a catalyst containing at least one zeolite, the hydroisomerization being conducted without introduction of halogen or halogen compound into the hydroisomerization zone.
Abstract (fr)
L'invention concerne un procédé combiné d'hydroreformage catalytique d'un naphta lourd dans au moins une zone de réaction (10) et d'hydroisomérisation catalytique d'un naphta léger dans au moins une zone de réaction (34). L'invention est caractérisée en ce que l'on utilise l'hydrogène produit par l'unité d'hydroreformage (ligne (27) pour isomériser le naphta léger, les reformats et isomérisats obtenus étant fractionnés de préférence ensemble dans une même colonne de stabilisation (51) sur la figure 1. Il en résulte une meilleure intégration thermique, une meilleure récupération des hydrocarbures légers, une baisse des utilités et investissement par rapport à deux unités fonctionnant séparemment.
IPC 1-7
IPC 8 full level
C10G 35/04 (2006.01); B01J 29/00 (2006.01); B01J 29/20 (2006.01); C10G 35/06 (2006.01); C10G 45/06 (2006.01); C10G 45/60 (2006.01); C10G 45/64 (2006.01); C10G 59/06 (2006.01); C10G 63/02 (2006.01); C10G 69/14 (2006.01)
CPC (source: EP US)
C10G 59/06 (2013.01 - EP US); C10G 69/14 (2013.01 - EP US)
Citation (search report)
- [A] US 2946736 A 19600726 - MUFFAT DONALD L, et al
- [A] US 3785955 A 19740115 - DAVIS W
- [A] FR 2248314 A1 19750516 - INST FRANCAIS DU PETROLE [FR]
Designated contracting state (EPC)
AT BE CH DE ES GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0245124 A1 19871111; EP 0245124 B1 19900110; AT E49417 T1 19900115; CA 1325990 C 19940111; DE 3761381 D1 19900215; DK 194487 A 19871016; DK 194487 D0 19870414; ES 2013764 B3 19900601; FR 2602784 A1 19880219; FR 2602784 B1 19881104; GR 3000274 T3 19910315; JP 2544922 B2 19961016; JP S62256889 A 19871109; US 4911822 A 19900327
DOCDB simple family (application)
EP 87400645 A 19870324; AT 87400645 T 19870324; CA 534980 A 19870416; DE 3761381 T 19870324; DK 194487 A 19870414; ES 87400645 T 19870324; FR 8605568 A 19860416; GR 890400219 T 19900112; JP 9423887 A 19870416; US 3855587 A 19870415