Method of preparing base oil of lubricating oil from raw materials with high wax content
A technology for lubricating base oil and raw material oil, applied in lubricating compositions, petroleum industry, refined hydrocarbon oil, etc., can solve the problem of large loss of catalyst activity, and achieve the effects of reducing cracking activity, improving selectivity, and improving yield
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[0026] The raw materials in Examples 1 to 3 are the three raw materials listed in Table 1, respectively, and the catalyst listed in Table 2 is used as the isomerization dewaxing catalyst. The isomerization dewaxing catalyst is pretreated with sulfide and nitride. In the pretreatment solution, the sulfide used is a mixture of diethanol disulfide (50wt%) and dimethyl disulfide (50wt%). It is 1.0% of the weight of the catalyst; the nitrogen compound used is a mixture of aniline (50wt%) and (50wt%) pyridine, and the dosage is 0.8% of the weight of the catalyst; the organic solvent is catalytic cracking gasoline, and the dosage of the organic solvent is 10% of the weight of the catalyst. The pretreatment is carried out under the atmosphere of air, the pretreatment temperature is 160°C, and the pretreatment time is 5h. The pretreated catalyst was activated at 10.0 MPa, the volume ratio of hydrogen to the catalyst was 800, the activation temperature was 320° C., and the activation ti...
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