PURPOSE: To improve various characteristics meeting performance guidelines by bringing a wax isomerate oil and/or a hydrocarbon synthesis liquid product, used as a base oil or additive oil of a lubricating oil or special oil, into contact with a specific type of silica absorbent.
CONSTITUTION: A hydrocarbon oil selected from a wax isomerate oil, a hydrocarbon synthesis liquid product and a mixture thereof is contacted, in a batchwise manner or continuously, with a silica adsorbent under conditions of a silica loading of about 1 ml/g, a temperature of about 20 to 100°C, a pressure of an atmospheric pressure to about 30 atm., and a time of about 2 to 2 hours. The silica adsorbent has a pore size of at least 100 , an alkali/alkaline ion concentration, excluding sodium, of less than about 125 ppm, an iron content of less than about 40 ppm, and a zirconium content of less than about 130 ppm. The hydrocarbon oil collected after the contact with the silica adsorbent is useful as a base oil or additive oil for the preparation of a lubricating oil or special oil as being adapted to a performance guide line with respect to the color, daylight stability, oxygenate content, engine performance test, foaming property, thermal stability and the like.
| JP5455939 | How to remove mercury from a hydrocarbon stream |
| WO/2006/019288 | SELECTIVE ABSORPTION MATERIAL AND APPLICATION METHOD THEREOF |
| WO/2002/024834 | IMPROVED CATALYTIC REFORMING PROCESS |
KUREIGU YANGU SABOTSUKU
ROTSUKO ANSONII FUIATO
EDOWAADO NITSUSEN
