Demulsifier and preparation method thereof
A demulsifier and polyether technology, applied in the field of demulsifier and its preparation, can solve the problems of unsatisfactory dehydration effect of demulsifier's flocculation ability and coalescence ability, poor low-temperature dehydration effect of crude oil, poor adaptability of crude oil and oil products, etc. The effect of industrialized promotion of production, fast oil-water separation rate, and wide application range
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Embodiment 1
[0047] The demulsifier described in this embodiment 1, in terms of mass percentage, consists of 22% silicone oil modified phenolic amine resin polyether demulsifier, 35% acrylic modified triblock phenolic amine resin polyether demulsifier, 6% Ionic liquid, 0.5% myristamidopropyl hydroxypropyl sulfobetaine, 14% diethylene glycol mono-n-butyl ether and the balance water.
[0048] in:
[0049] The ionic liquid is bromo-1-octyl-2,3-dimethylimidazole.
[0050] Bromo-1-octyl-2,3-dimethylimidazole is added as an ionic liquid, which can quickly reach the oil-water interface and reduce the tension of the oil-water interface.
[0051] The preparation method of described silicone oil modified phenolic resin polyether demulsifier, consists of the following steps:
[0052] (1) Add phenolic amine resin and alkali catalyst to the autoclave, stir and heat up to 95°C, vacuumize and replace with nitrogen, control the pressure at -0.15MPa, continue to heat up to 127°C, feed propylene oxide for...
Embodiment 2
[0081] The demulsifier described in this embodiment 2, in terms of mass percentage, consists of 20% silicone oil modified phenolic amine resin polyether demulsifier, 33% acrylic modified triblock phenolic amine resin polyether demulsifier, 5% Ionic liquid, 0.6% myristamidopropyl hydroxypropyl sulfobetaine, 12% diethylene glycol mono-n-butyl ether and the balance water.
[0082] in:
[0083] The ionic liquid is bromo-1-octyl-2,3-dimethylimidazole.
[0084] Bromo-1-octyl-2,3-dimethylimidazole is added as an ionic liquid, which can quickly reach the oil-water interface and reduce the tension of the oil-water interface.
[0085] The preparation method of described silicone oil modified phenolic resin polyether demulsifier, consists of the following steps:
[0086] (1) Add phenolic amine resin and alkali catalyst to the autoclave, stir and raise the temperature to 90°C, vacuumize and replace with nitrogen, control the pressure at -0.20MPa, continue to heat up to 125°C, feed propy...
Embodiment 3
[0115] The demulsifier described in this embodiment 3, in mass percentage, is broken by 25% silicone oil modified phenolic amine resin polyether demulsifier, 30% acrylic acid modified three-block phenolic amine resin polyether Emulsion, 8% ionic liquid, 0.7% myristamidopropyl hydroxypropyl sulfobetaine, 15% diethylene glycol mono-n-butyl ether and the balance water.
[0116] in:
[0117] The ionic liquid is bromo-1-octyl-2,3-dimethylimidazole.
[0118] Bromo-1-octyl-2,3-dimethylimidazole is added as an ionic liquid, which can quickly reach the oil-water interface and reduce the tension of the oil-water interface.
[0119] The preparation method of described silicone oil modified phenolic resin polyether demulsifier, consists of the following steps:
[0120] (1) Add phenolic amine resin and alkali catalyst to the autoclave, stir and heat up to 92°C, vacuumize and replace with nitrogen, control the pressure at -0.20MPa, continue to heat up to 127°C, feed propylene oxide for re...
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