Catalyst for poly-alpha-olefin synthetic oil and preparation method for catalyst
A technology of olefin synthesis oil and catalyst, which is applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., to achieve the effects of good quality, easy process operation, and high yield
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[0036] Example 1
[0037] Put 8g silica (pore volume 0.50cm 3 / g, average pore diameter is 2.0nm, specific surface area is 158m 2 / g) immersed in vanadium nitrate aqueous solution (V loading is 0.20wt%), continuously stirred and immersed in a water bath at 25°C for 30 minutes, filtered, and vacuum dried at 100°C for 6 hours; put the silica support impregnated with vanadium nitrate in a muffle For roasting in the furnace, the temperature is first raised to 120°C for 2 hours, then to 350°C for 1 hour, then to 450°C for 6 hours, and finally cooled down naturally under nitrogen. The obtained sample was again immersed in a toluene solution of aluminum trichloride (Al loading amount was 12.00 wt%), continuously stirred and immersed for 2 hours at room temperature, and vacuum dried at 100° C. for 6 hours to obtain the catalyst and save it for use.
Example Embodiment
[0038] Example 2
[0039] Put 8g silica (pore volume 0.58cm 3 / g, the average pore diameter is 12.5nm, the specific surface area is 100m 2 / g) immersed in vanadyl oxalate aqueous solution (V loading is 0.58wt%), continuously stirred and dipped in a 45℃ water bath for 50 min, filtered, and vacuum dried at 100℃ for 6 h; put the silica carrier impregnated with vanadyl oxalate on For roasting in the muffle furnace, the temperature is first raised to 120°C for 2 hours, then to 350°C for 1 hour, then to 450°C for 6 hours, and finally cooled down naturally under nitrogen. The obtained sample was again immersed in an isopropanol solution of titanium tetrachloride (Ti loading amount was 10.68wt%), continuously stirred and immersed for 2 hours at room temperature, and vacuum dried at 100°C for 6 hours. The obtained catalyst was stored for later use.
Example Embodiment
[0040] Example 3
[0041] 10g aluminum oxide (γ-alumina, pore volume of 1.34cm 3 / g, the average pore diameter is 20nm, the specific surface area is 220m 2 / g) immersed in chromium acetate aqueous solution (Cr loading amount is 12.00wt%), continuously stirred and immersed in a water bath at 25°C for 60 minutes, filtered, and vacuum dried at 100°C for 6 hours; put the aluminum oxide carrier impregnated with chromium acetate on the horse For roasting in the Furnace, the temperature is first raised to 120°C, constant temperature for 2h, then to 350°C, constant temperature for 1h, then to 550°C, constant temperature for 6h, and finally cooled to 200-300°C under nitrogen, with reducing The gas CO, lasts for 1-3h, reduces the chromium oxide contained in it to low-priced chromium oxide. The obtained sample was again immersed in an isopropanol solution of titanium tetrachloride (Ti loading amount was 0.10 wt%), continuously stirred and immersed for 4 hours at room temperature, and vacuum...
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