Method for synthesis of poly alpha-olefin lubricating oil base oil
A technology for olefin lubricating oil and base oil, which is applied in the petroleum industry and the production of liquid hydrocarbon mixtures, etc., can solve the problems of low utilization rate of coal liquefaction products and single raw materials, and achieve the effect of improving comprehensive utilization value and broadening raw materials.
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Embodiment 1
[0021] Add 100 parts (weight) of polymerization raw materials to the reaction kettle under the protection of nitrogen atmosphere. The raw material composition is: 80wt% normal alpha-olefins, 20wt% normal alkanes, and the average carbon number of raw alpha-olefins is 9.6. Raw materials were heated to 90°C in the reactor, 2.34 parts (by weight) of aluminum trichloride and 0.66 parts (by weight) of titanium tetrachloride were added, and reacted for 3 hours at 80°C and 0.2 MPa. The reaction product was neutralized, washed with water, and separated from the catalyst, and then distilled to remove fractions less than 280°C to obtain a viscosity index of 154 and a viscosity of 8.76mm at 100°C 2 / s, polyalphaolefin lubricating oil base oil with a freezing point of -56°C. The yield of polyalphaolefin lubricating base oil was 86.27%.
Embodiment 2
[0023] Add 100 parts (weight) of polymerization reaction raw materials to the reaction kettle under the protection of nitrogen atmosphere. The raw material composition is: 80wt% normal alpha-olefins, 20wt% normal alkanes, and the average carbon number of raw alpha-olefins is 10. Raw materials were heated to 90°C in the reactor, 2.34 parts (by weight) of aluminum trichloride and 0.66 parts (by weight) of titanium tetrachloride were added, and reacted at 90°C and 0.15 MPa for 2 hours. The reaction product was neutralized, washed with water, and the catalyst was separated, and then the fraction less than 280°C was distilled off to obtain a viscosity index of 162 and a viscosity of 12.73mm at 100°C. 2 / s, polyalphaolefin lubricating oil base oil with a freezing point of -57°C. The yield of polyalphaolefin lubricating base oil was 83.24%.
Embodiment 3
[0025] Add 100 parts (weight) of polymerization reaction raw materials to the reaction kettle under the protection of nitrogen atmosphere. The raw material composition is: 80wt% normal alpha-olefins, 20wt% normal alkanes, and the average carbon number of raw alpha-olefins is 10. Raw materials were heated to 80°C in the reactor, 0.78 parts (by weight) of aluminum trichloride and 0.22 parts (by weight) of titanium tetrachloride were added, and reacted at 80°C and 0.2 MPa for 2 hours. The reaction product is neutralized, washed with water, separated from the catalyst, and then distilled to remove fractions less than 280°C to obtain a viscosity index of 168 and a viscosity of 8.32mm at 100°C 2 / s, polyalphaolefin lubricating oil base oil with a freezing point of -61°C. The yield of polyalphaolefin lubricating oil base oil was 80.46%.
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