Title:
METHOD FOR CONVERTING WAX-CONTAINING HYDROCARBON FEED INTO HIGH-GRADE MIDDLE DISTILLATE
Document Type and Number:
Japanese Patent JP3764796
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain high-grade middle distillates by bringing a wax-contg. hydrocarbon feed into contact with an alcohol/dilute acid mixed soln. and bringing thus treated feed into contact with specific catalysts at high temp. and pressure to subject the feed to hydrodewaxing and hydrocracking.
SOLUTION: A solvent mixture is prepd. by mixing a 1-6C alcohol with an aq. dil. acid soln. in an vol. ratio of (10/90)-(90/10). The mixture is brought into contact with a wax-contg. hydrocarbon feed contg. hydrocarbons boiling at 343°C or higher in a vol. ratio of 0.5-5 under the condition that the acid content of the solvent mixture is 1-5vol.%. The treated feed is brought into contact with a crystalline molecular sieve catalyst system having a pore size of 0.5-0.7nm and selected from among metallosilicates and silicoaminophosphates at high temp. and pressure in the presence of hydrogen in a hydrodewaxing zone and then is brought into contact with a catalyst system contg. a group VIB-VIII metal for hydrogenation and zeolite having a pore size of 0.7-1.5nm at high temp. and pressure in a hydrocracking zone, thus giving middle distillates having good low-temp. properties.
Inventors:
Catherine Olivier
Jack Grote Jiance
Jack Grote Jiance
Application Number:
JP9449997A
Publication Date:
April 12, 2006
Filing Date:
March 31, 1997
Export Citation:
Assignee:
FINA RESEARCH SOCIETE ANONYME
International Classes:
B01J27/043; B01J27/047; C10G67/08; B01J29/04; C10G45/64; C10G47/20; C10G65/12; C10G67/04; C10G73/06; C10G73/12; C10G; (IPC1-7): C10G67/04; B01J27/043; B01J27/047; B01J29/04; C10G45/64; C10G73/12
Domestic Patent References:
| JP9503541A | ||||
| JP3259997A | ||||
| JP50070406A | ||||
| JP2069594A | ||||
| JP59206486A | ||||
| JP63101488A |
Attorney, Agent or Firm:
Heikichi Odashima