Viscosity reducer applied to pipeline transportation of crude oil and preparation method thereof
A technology for viscosity reducer and crude oil, which is applied in the field of viscosity reducer for pipeline transportation of crude oil and its preparation, can solve problems such as condensation, high energy consumption of oil transportation, pipeline blockage, etc., and achieves simple preparation process, improved safety, and reduced viscosity. Effect
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Embodiment 1
[0028] The preparation of embodiment 1 viscosity reducer
[0029] S1. After mixing 600g of acrylonitrile, 400g of styrene and 200g of maleic anhydride, add toluene and heat to
[0030] Dissolve at 50°C, then add 2 g of dibenzoyl peroxide as an initiator, control the reaction temperature at 90°C, react for 4 hours, and separate a white solid;
[0031] S2. 300g of ethanolamine and 500g of oleic acid are mixed and dissolved in an organic solvent, and 25g of potassium hydroxide is added.
[0032] React at 120°C for 3h, concentrate and distill off the solvent to obtain amide.
[0033] S3. Mix all the white solids obtained in S1., all the amides obtained in S2., and 250 g of polyethylene polyamine polyoxypropylene polyoxyethylene ether, stir at 150° C. for 0.5 h, cool and pulverize to obtain a viscosity reducer.
Embodiment 2
[0034] The preparation of embodiment 2 viscosity reducer
[0035] S1. After mixing 500g of acrylonitrile, 200g of styrene and 200g of maleic anhydride, add toluene and heat to
[0036] Dissolve at 50°C, then add 1g of dibenzoyl peroxide initiator, control the reaction temperature at 80°C, react for 5h, and separate white solid;
[0037] S2. 400g of ethanolamine and 500g of oleic acid are mixed and dissolved in an organic solvent, and 35g of potassium hydroxide is added.
[0038] React at 120°C for 3h, concentrate and distill off the solvent to obtain amide.
[0039] S3. Mix all the white solids obtained in S1., all the amides obtained in S2. and 200 g of polyethylene polyamine polyoxypropylene polyoxyethylene ether, stir at 100°C for 1 hour, cool and pulverize to obtain a viscosity reducer.
Embodiment 3
[0040] The preparation of embodiment 3 viscosity reducer
[0041] S1. After mixing 700g of acrylonitrile, 400g of styrene and 400g of maleic anhydride, add toluene and heat to
[0042] Dissolve at 50°C, then add 5g of dibenzoyl peroxide as an initiator, control the reaction temperature at 100°C, react for 3h, and separate a white solid;
[0043] S2. 300g of ethanolamine and 400g of oleic acid are mixed and dissolved in an organic solvent, and 35g of potassium hydroxide is added.
[0044] React at 120°C for 3h, concentrate and distill off the solvent to obtain amide.
[0045] S3. Mix all the white solids obtained in S1., all the amides obtained in S2. and 300 g of polyethylene polyamine polyoxypropylene polyoxyethylene ether, stir at 150° C. for 0.5 h, cool and pulverize to obtain a viscosity reducer.
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