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Title:
METHOD FOR PRODUCING BASE OIL FOR LUBRICANT OILS
Document Type and Number:
WIPO Patent Application WO/2014/125683
Kind Code:
A1
Abstract:
A method for producing a base oil for lubricant oils, comprising: a first step of hydrocracking a raw oil containing a heavy oil having 30 or more carbon atoms at a content of 80 mass% or more under the conditions having a hydrogen partial pressure of 5 to 20 MPa so that the rate of decomposition of the heavy oil becomes 20 to 85 mass%, thereby producing a hydrocracked oil containing the heavy oil and a hydrocracking product thereof; a second step of fractionating the hydrocracked oil into a base oil fraction that contains the hydrocracking product and a heavy oil fraction that contains the heavy oil and is heavier than the base oil fraction; and a third step of carrying out the isomerization dewaxing of the base oil fraction that has been fractionated in the second step, thereby producing a dewaxed oil. In the method, the heavy oil fraction that has been fractionated in the second step is returned to the first step as a portion of the raw oil.

Inventors:
HAYASAKA KAZUAKI (JP)
NAGAYASU YOSHIYUKI (JP)
IWAMA MARIE (JP)
YOKOI MAYUMI (JP)
HIRANO TOMOHISA (JP)
Application Number:
PCT/JP2013/079913
Publication Date:
August 21, 2014
Filing Date:
November 05, 2013
Export Citation:
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Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
International Classes:
C10G65/12; C10G45/64; C10G47/12; C10M101/02; C10M177/00; C10N20/02
Domestic Patent References:
WO2011001914A12011-01-06
Foreign References:
JP2004528426A2004-09-16
JP2006509090A2006-03-16
JPH10510565A1998-10-13
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
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