Method for preparing oil-based composite oil product drag reducer from finished oil decoloring spent bleaching clay
A technology of waste clay and drag reducer, which is applied in the field of drag reduction and increase transmission, can solve the problems of drag reducer loss of application performance, molecular chain breakage and shear degradation, etc., to reduce the cost of injection application, promote synergy, and enhance application performance effect
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[0028] Embodiment 1: the method that the product oil decolorization waste clay that the present invention mentions prepares oil-based composite oil product drag reducer is as follows:
[0029] Weigh 100 g of waste clay after decolorization of gasoline, put it into a ball mill for grinding for 60 minutes, sieve through a 400-mesh sieve, save the waste clay powder that has passed through the sieve, and dry it at 100 ° C for 48 hours, and then place it in a muffle furnace. Under nitrogen protection, calcination at 600℃ for 4h;
[0030] Weigh 5g of calcined waste clay, add 50g of deionized water, and stir at 30°C and 200 r / min for 60min; then weigh 10g of titanate KR-9S and slowly add it to the beaker, continue to sonicate at 30°C. Treat for 60 min; at this time, add 1 g of cetyl trimethyl ammonium bromide, control the temperature at 40 ° C, and stir at 80 r / min for 60 min until the mixing is complete; then add 0.05 g of dodecyl betaine, 40 ° C and 50r / min, stirring for 60min to ...
Example Embodiment
[0033] Embodiment 2: the method that the product oil decolorization waste clay that the present invention mentions prepares oil-based composite oil product drag reducer is as follows:
[0034] Weigh 100g of the waste clay after decolorization of the alkylated oil, put it into a ball mill for grinding for 20 minutes, sieve it with a 400-mesh screen, and save the waste clay powder that has passed through the screen and dry it at 80 °C for 24 hours, and then place it in a muffle. Furnace, under nitrogen protection, calcination at 400 ℃ for 1h.
[0035] Weigh 5g of calcined waste clay, add 25g of deionized water, and stir at 20°C and 100 r / min for 30min; then weigh 5g of titanate KR-9S and slowly add it to the beaker, continue to ultrasonicate at 20°C. Treat for 30min; at this time, add 0.5g cetyltrimethylammonium bromide, control the temperature at 20°C, stir at 50r / min for 30min; then add 0.1g dodecyl betaine, 30°C and 50r / min min, stirring for 10 min.
[0036]Through the dies...
Example Embodiment
[0037] Embodiment 3: the method that the product oil decolorization waste clay that the present invention mentions prepares oil-based composite oil product drag reducer is as follows:
[0038] Weigh 100 g of waste clay after decolorization of diesel oil, put it into a ball mill for grinding for 40 minutes, sieve through a 400-mesh sieve, save the waste clay powder that has passed through the sieve, and dry it at 90 ° C for 36 hours, and then place it in a muffle furnace. Under nitrogen protection, calcination was carried out at 400 °C for 3 h.
[0039] Weigh 5g of calcined waste clay, add 40g of deionized water, and stir at 25°C and 150r / min for 45min; then weigh 8g of titanate KR-9S and slowly add it to the beaker, continue to ultrasonicate at 25°C. Treat for 50min; at this time, add 0.8g dodecyltrimethylammonium bromide, control the temperature at 30°C, stir at 70r / min for 50min; then add 0.08g dodecyl diethanolamide, 35°C and 50r / min, stirring for 40min.
[0040] Through...
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