EP 1997868 A1 20081203 - Process for producing a naphthenic base oil
Title (en)
Process for producing a naphthenic base oil
Title (de)
Verfahren zur Herstellung eines Öls auf Naphthenbasis
Title (fr)
Procédé pour la production d'huile à base naphténique
Publication
Application
Priority
EP 07109176 A 20070530
Abstract (en)
The invention is directed to a process for producing at least one naphthenic base oil from a hydrocarbon feed containing heteroatom species and aromatics, comprising the steps of: a) hydrotreating the feed under hydrotreating conditions effective for removing at least a portion of the heteroatom species and saturating at least a portion of the aromatics to produce a first stage effluent having a reduced amount of heteroatom species; and b) removing gaseous and liquid fractions boiling in the gas oil range from the effluent from step (a), and c) dewaxing the effluent obtained in step (b) under catalytic dewaxing conditions in the presence of a catalyst composition comprising a molecular sieve containing covalently bound alumina moieties in its framework and having pores with a diameter in the range of from 0.35 to 0.80 nm, wherein the molecular sieve has been modified to reduce the mole percentage of alumina, to produce at least one effluent, and d) fractionating the effluent obtained in step(c) to produce at least one naphthenic base oil grade.
IPC 8 full level
C10G 45/64 (2006.01); C10G 65/04 (2006.01); C10G 65/08 (2006.01)
CPC (source: EP)
C10G 45/64 (2013.01); C10G 65/043 (2013.01); C10G 65/08 (2013.01)
Citation (search report)
- [X] US 3730876 A 19730501 - SEQUEIRA A
- [X] US 30529 A 18601030
- [X] US 4515680 A 19850507 - HETTINGER JR WILLIAM P [US], et al
- [X] WO 0029511 A1 20000525 - SHELL INT RESEARCH [NL], et al
- [X] WO 2004053027 A1 20040624 - SHELL INT RESEARCH [NL], et al
- [X] WO 9641849 A1 19961227 - SHELL INT RESEARCH [NL], et al
- [X] US 4361477 A 19821130 - MILLER STEPHEN J
- [X] US 3663430 A 19720516 - MORRIS HERBERT C
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07109176 A 20070530