CN104109553A - Demulsifier and preparation and use methods thereof - Google Patents
Demulsifier and preparation and use methods thereof Download PDFInfo
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- CN104109553A CN104109553A CN201410375910.8A CN201410375910A CN104109553A CN 104109553 A CN104109553 A CN 104109553A CN 201410375910 A CN201410375910 A CN 201410375910A CN 104109553 A CN104109553 A CN 104109553A
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Abstract
The invention relates to the technical field of demulsifiers for petroleum and discloses a demulsifier and preparation and use methods thereof. The demulsifier is prepared from the raw materials in parts by weight: 1-10 parts of 1,3-propanediamine, 0.1-0.5 part of basic catalyst, 40-60 parts of epoxy propane, 30-50 parts of epoxy ethane, 40-50 parts of anhydrous ethanol, 1-2 parts of dodecyl dimethyl ammonium chloride, 45-55 parts of water and 15-35 parts of demulsifier SP169. By adding the demulsifier disclosed by the invention into an oil mixture of heavy oil, light oil and tight oil, the dehydration rate and the purified oil moisture content can meet industry requirements, and the dehydration rate and purified oil moisture content of the demulsifier disclosed by the invention are remarkably increased compared with those of the conventional demulsifiers, so that the demulsifier disclosed by the invention meets the requirements of oil mixtures containing the heavy oil, the light oil and the tight oil on demulsification.
Description
Technical field
the present invention relates to oil emulsion splitter technical field, is a kind of emulsion splitter and preparation method thereof and using method.
Background technology
the emulsion splitter that the emulsion splitter using on oil field at present has propylene glycol, polyethylene polyamine, stearyl alcohol etc. and propylene oxide, reacting ethylene oxide to generate.Emulsion splitter is in the market not suitable with the breakdown of emulsion demand of the mixing oil of viscous crude, thin oil, fine and close oil, by industry SY/T 5280-2000 crude oil demulsifier general technical specifications, evaluate novel emulsion splitter, in dosage, be that 200ppm, dehydration temperaturre are while being 55 ℃, dehydration rate reaches 95%, and water cut in purified < 0.5%.On market during existing emulsion splitter dosage 200ppm, 55 ℃ of dehydration temperaturres, dehydration rate 80%, water cut in purified 1.5%.This has absolutely proved conventional emulsion splitter, and dehydration rate is low, can not meet the requirement of oil field development.
Summary of the invention
the invention provides a kind of emulsion splitter and preparation method thereof and using method, overcome the deficiency of above-mentioned prior art, it can effectively solve the low problem that can not meet oil field demand for development of existing emulsion splitter dehydration rate.
one of technical scheme of the present invention realizes by following measures: a kind of emulsion splitter, raw materials by weight portion comprises 15 parts to 35 parts of 1 part to 10 parts of 1-3-propylene diamine, 0.1 part to 0.5 part of basic catalyst, 40 parts to 60 parts of propylene oxide, 30 parts to 50 parts, oxyethane, 40 parts to 50 parts of dehydrated alcohols, 1 part to 2 parts of dodecyl dimethyl ammonia chloride, 45 parts to 55 parts, water and SP169 emulsion splitters.
the further optimization and/or improvements to one of foregoing invention technical scheme below:
above-mentioned emulsion splitter obtains as follows: the first step, the 1-3-propylene diamine of aequum and basic catalyst are added in reactor and mixed, at being-5 ℃ to-7 ℃, temperature reacts 15 minutes to 30 minutes, reaction final vacuum dehydration 5 minutes to 15 minutes, dewater in backward reactor and add successively propylene oxide and the oxyethane of aequum and mix, at pressure, be 0 to 0.25Mpa, temperature is at 50 ℃ to 160 ℃, to react 8 hours to 10 hours, after reaction, in temperature, be isothermal reaction 30 minutes to 45 minutes at 150 ℃ to 160 ℃, after reaction, obtain dry agent; Second step, after the dehydrated alcohol of aequum, dodecyl dimethyl ammonia chloride and water are mixed, is at 30 ℃ to 40 ℃, to react within 30 minutes to 40 minutes, to obtain complex solvent in temperature; The 3rd step obtains emulsion splitter by the SP169 emulsion splitter of the dry agent obtaining, aequum and the complex solvent that obtains after temperature is to mix at 55 ℃ to 65 ℃.
above-mentioned basic catalyst is potassium hydroxide.
the reaction of the above-mentioned the first step and second step is all carried out under whipped state, and stir speed (S.S.) is 180 revs/min to 200 revs/min.
two of technical scheme of the present invention realizes by following measures: a kind of preparation method of emulsion splitter, carry out in the steps below: the first step, the 1-3-propylene diamine of aequum and basic catalyst are added in reactor and mixed, at being-5 ℃ to-7 ℃, temperature reacts 15 minutes to 30 minutes, reaction final vacuum dehydration 5 minutes to 15 minutes, dewater in backward reactor and add successively propylene oxide and the oxyethane of aequum and mix, at pressure, be 0 to 0.25Mpa, temperature is at 50 ℃ to 160 ℃, to react 8 hours to 10 hours, after reaction, in temperature, be isothermal reaction 30 minutes to 45 minutes at 150 ℃ to 160 ℃, after reaction, obtain dry agent, second step, after the dehydrated alcohol of aequum, dodecyl dimethyl ammonia chloride and water are mixed, is at 30 ℃ to 40 ℃, to react within 30 minutes to 40 minutes, to obtain complex solvent in temperature, the 3rd step obtains emulsion splitter by the SP169 emulsion splitter of the dry agent obtaining, aequum and the complex solvent that obtains after temperature is to mix at 55 ℃ to 65 ℃.
the further optimization and/or improvements to two of foregoing invention technical scheme below:
above-mentioned basic catalyst is potassium hydroxide.
the reaction of the above-mentioned the first step and second step is all carried out under whipped state, and stir speed (S.S.) is 180 revs/min to 200 revs/min.
three of technical scheme of the present invention realizes by following measures: a kind of using method of emulsion splitter, carry out as follows: during use, emulsion splitter is joined in the mixing oil that contains viscous crude, thin oil and fine and close oil and dewatered.
the further optimization and/or improvements to three of foregoing invention technical scheme below:
above-mentioned dehydration temperaturre is 55 ℃; Or/and the add-on of emulsion splitter is the 200ppm to 300ppm of mixing oil volume.
the emulsion splitter that the present invention obtains joins in the mixing oil of viscous crude, thin oil and fine and close oil, and dehydration rate and water cut in purified can reach industry requirement, and dehydration rate and the water cut in purified of the more conventional emulsion splitter of emulsion splitter that obtains of the present invention are significantly increased; Illustrate that the emulsion splitter that the present invention obtains adapts to the breakdown of emulsion requirement that contains viscous crude, thin oil and fine and close oily mixing oil.
Embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.
embodiment 1, and this emulsion splitter raw materials by weight portion comprises 15 parts to 35 parts of 1 part to 10 parts of 1-3-propylene diamine, 0.1 part to 0.5 part of basic catalyst, 40 parts to 60 parts of propylene oxide, 30 parts to 50 parts, oxyethane, 40 parts to 50 parts of dehydrated alcohols, 1 part to 2 parts of dodecyl dimethyl ammonia chloride, 45 parts to 55 parts, water and SP169 emulsion splitters.Water can be tap water or pure water or distilled water.
embodiment 2, and this emulsion splitter raw materials by weight portion comprises 15 parts or 35 parts of 45 parts, 1 part of 40 parts of 30 parts, 40 parts of 0.1 part of 1 part of 1-3-propylene diamine or 10 parts, basic catalyst or 0.5 part, propylene oxide or 60 parts, oxyethane or 50 parts, dehydrated alcohols or 50 parts, dodecyl dimethyl ammonia chloride or 2 parts, water or 55 parts and SP169 emulsion splitters.
embodiment 3, and this emulsion splitter raw materials by weight portion comprises 15 parts of 1 part of 1-3-propylene diamine, 0.1 part of basic catalyst, 40 parts of propylene oxide, 30 parts, oxyethane, 40 parts of dehydrated alcohols, 1 part of dodecyl dimethyl ammonia chloride, 45 parts, water and SP169 emulsion splitters.
embodiment 4, and this emulsion splitter raw materials by weight portion comprises 35 parts of 10 parts of 1-3-propylene diamine, 0.5 part of basic catalyst, 60 parts of propylene oxide, 50 parts, oxyethane, 50 parts of dehydrated alcohols, 2 parts of dodecyl dimethyl ammonia chlorides, 55 parts, water and SP169 emulsion splitters.
embodiment 5, and this emulsion splitter raw materials by weight portion comprises 20 parts of 2 parts of 1-3-propylene diamine, 0.4 part of basic catalyst, 40 parts of propylene oxide, 30 parts, oxyethane, 40 parts of dehydrated alcohols, 2 parts of dodecyl dimethyl ammonia chlorides, 50 parts, water and SP169 emulsion splitters.
embodiment 6, this emulsion splitter, raw materials by weight portion comprises 30 parts of 8 parts of 1-3-propylene diamine, 0.3 part of basic catalyst, 50 parts of propylene oxide, 45 parts, oxyethane, 45 parts of dehydrated alcohols, 1.5 parts of dodecyl dimethyl ammonia chlorides, 50 parts, water and SP169 emulsion splitters.
embodiment 7, this emulsion splitter obtains by following preparation method: the first step, the 1-3-propylene diamine of aequum and basic catalyst are added in reactor and mixed, at being-5 ℃ to-7 ℃, temperature reacts 15 minutes to 30 minutes, reaction final vacuum dehydration 5 minutes to 15 minutes, dewater in backward reactor and add successively propylene oxide and the oxyethane of aequum and mix, at pressure, be 0 to 0.25Mpa, temperature is at 50 ℃ to 160 ℃, to react 8 hours to 10 hours, after reaction, in temperature, be isothermal reaction 30 minutes to 45 minutes at 150 ℃ to 160 ℃, after reaction, obtain dry agent; Second step, after the dehydrated alcohol of aequum, dodecyl dimethyl ammonia chloride and water are mixed, is at 30 ℃ to 40 ℃, to react within 30 minutes to 40 minutes, to obtain complex solvent in temperature; The 3rd step obtains emulsion splitter by the SP169 emulsion splitter of the dry agent obtaining, aequum and the complex solvent that obtains after temperature is to mix at 55 ℃ to 65 ℃.
embodiment 8, and as the optimization of above-described embodiment, embodiment 8 neutral and alkali catalyzer are potassium hydroxide.
embodiment 9, and as the optimization of above-described embodiment, in embodiment 9, the reaction of the first step and second step is all carried out under whipped state, and stir speed (S.S.) is 180 revs/min to 200 revs/min.
embodiment 10, and the using method of this emulsion splitter is carried out as follows: during use, emulsion splitter is joined in the mixing oil that contains viscous crude, thin oil and fine and close oil and dewatered.
embodiment 11, and as the optimization of above-described embodiment, in embodiment 11, dehydration temperaturre is 55 ℃; Or/and the add-on of emulsion splitter is the 200ppm to 300ppm of mixing oil volume.
the emulsion splitter that the above embodiment of the present invention 1, embodiment 3, embodiment 4, embodiment 5 and embodiment 6 obtain is evaluated by industry SY/T 5280-2000 crude oil demulsifier general technical specifications, the emulsion splitter that the above embodiment of the present invention 1, embodiment 3, embodiment 4, embodiment 5 and embodiment 6 are obtained joins respectively in the mixing oil that contains viscous crude, thin oil and fine and close oil, the add-on of emulsion splitter of the present invention is the 200ppm of mixing oil volume, in temperature, be to dewater at 55 ℃, dehydration rate and water cut in purified are shown in Table 1; The emulsion splitter that the above embodiment of the present invention 1, embodiment 3, embodiment 4, embodiment 5 and embodiment 6 obtain as can be seen from Table 1 adds respectively in the mixing oil that contains viscous crude, thin oil and fine and close oil, dehydration rate is respectively 96% to 98%, 96.5%, 97.8%, 97% and 98%, and water cut in purified is respectively 0.2% to 0.5%, 0.5%, 0.35%, 0.42% and 0.2%; Dehydration rate and water cut in purified can reach industry requirement, and dehydration rate and the water cut in purified of the more conventional emulsion splitter of emulsion splitter that obtains of the present invention are significantly increased; Illustrate that the emulsion splitter that the present invention obtains adapts to the breakdown of emulsion requirement that contains viscous crude, thin oil and fine and close oily mixing oil.
above technical characterictic has formed embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
table 1
| The embodiment of the present invention | Dehydration rate (%) | Water cut in purified (%) |
| Embodiment 1 | 96 to 98 | 0.2 to 0.5 |
| Embodiment 3 | 96.5 | 0.5 |
| Embodiment 4 | 97.8 | 0.35 |
| Embodiment 5 | 97 | 0.42 |
| Embodiment 6 | 98 | 0.2 |
Claims (10)
1. an emulsion splitter, is characterized in that raw materials by weight portion comprises 15 parts to 35 parts of 1 part to 10 parts of 1-3-propylene diamine, 0.1 part to 0.5 part of basic catalyst, 40 parts to 60 parts of propylene oxide, 30 parts to 50 parts, oxyethane, 40 parts to 50 parts of dehydrated alcohols, 1 part to 2 parts of dodecyl dimethyl ammonia chloride, 45 parts to 55 parts, water and SP169 emulsion splitters.
2. emulsion splitter according to claim 1, it is characterized in that obtaining as follows: the first step, the 1-3-propylene diamine of aequum and basic catalyst are added in reactor and mixed, at being-5 ℃ to-7 ℃, temperature reacts 15 minutes to 30 minutes, reaction final vacuum dehydration 5 minutes to 15 minutes, dewater in backward reactor and add successively propylene oxide and the oxyethane of aequum and mix, at pressure, be 0 to 0.25Mpa, temperature is at 50 ℃ to 160 ℃, to react 8 hours to 10 hours, after reaction, in temperature, be isothermal reaction 30 minutes to 45 minutes at 150 ℃ to 160 ℃, after reaction, obtain dry agent, second step, after the dehydrated alcohol of aequum, dodecyl dimethyl ammonia chloride and water are mixed, is at 30 ℃ to 40 ℃, to react within 30 minutes to 40 minutes, to obtain complex solvent in temperature, the 3rd step obtains emulsion splitter by the SP169 emulsion splitter of the dry agent obtaining, aequum and the complex solvent that obtains after temperature is to mix at 55 ℃ to 65 ℃.
3. emulsion splitter according to claim 1 and 2, is characterized in that basic catalyst is potassium hydroxide.
4. emulsion splitter according to claim 1 and 2, is characterized in that the reaction of the first step and second step is all carried out under whipped state, and stir speed (S.S.) is 180 revs/min to 200 revs/min.
5. emulsion splitter according to claim 3, is characterized in that the reaction of the first step and second step is all carried out under whipped state, and stir speed (S.S.) is 180 revs/min to 200 revs/min.
6. the preparation method of an emulsion splitter according to claim 1, it is characterized in that carrying out in the steps below: the first step, the 1-3-propylene diamine of aequum and basic catalyst are added in reactor and mixed, at being-5 ℃ to-7 ℃, temperature reacts 15 minutes to 30 minutes, reaction final vacuum dehydration 5 minutes to 15 minutes, dewater in backward reactor and add successively propylene oxide and the oxyethane of aequum and mix, at pressure, be 0 to 0.25Mpa, temperature is at 50 ℃ to 160 ℃, to react 8 hours to 10 hours, after reaction, in temperature, be isothermal reaction 30 minutes to 45 minutes at 150 ℃ to 160 ℃, after reaction, obtain dry agent, second step, after the dehydrated alcohol of aequum, dodecyl dimethyl ammonia chloride and water are mixed, is at 30 ℃ to 40 ℃, to react within 30 minutes to 40 minutes, to obtain complex solvent in temperature, the 3rd step obtains emulsion splitter by the SP169 emulsion splitter of the dry agent obtaining, aequum and the complex solvent that obtains after temperature is to mix at 55 ℃ to 65 ℃.
7. the preparation method of emulsion splitter according to claim 6, is characterized in that basic catalyst is potassium hydroxide.
8. according to the preparation method of the emulsion splitter described in claim 6 or 7, it is characterized in that the reaction of the first step and second step is all carried out under whipped state, stir speed (S.S.) is 180 revs/min to 200 revs/min.
9. according to a using method for the emulsion splitter described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that carrying out as follows: during use, emulsion splitter is joined in the mixing oil that contains viscous crude, thin oil and fine and close oil and dewatered.
10. the using method of emulsion splitter according to claim 9, is characterized in that dehydration temperaturre is 55 ℃; Or/and the add-on of emulsion splitter is the 200ppm to 300ppm of mixing oil volume.
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| CN201410375910.8A CN104109553B (en) | 2014-08-01 | 2014-08-01 | Emulsion splitter and preparation method thereof and using method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110436747A (en) * | 2019-07-31 | 2019-11-12 | 克拉玛依市博瑞科技发展有限公司 | Oil, water release agent and preparation method thereof and application method |
| CN111849651A (en) * | 2020-07-15 | 2020-10-30 | 中国海洋大学 | Thermochemical cleaning agent containing polymer oil sludge in oil field and preparation method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110436747A (en) * | 2019-07-31 | 2019-11-12 | 克拉玛依市博瑞科技发展有限公司 | Oil, water release agent and preparation method thereof and application method |
| CN111849651A (en) * | 2020-07-15 | 2020-10-30 | 中国海洋大学 | Thermochemical cleaning agent containing polymer oil sludge in oil field and preparation method and application thereof |
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| CN104109553B (en) | 2015-12-30 |
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Denomination of invention: Demulsifier and its preparation and Application Effective date of registration: 20210625 Granted publication date: 20151230 Pledgee: Karamay Petroleum Branch of Bank of China Ltd. Pledgor: KARAMAY ZHENGCHENG Co.,Ltd. Registration number: Y2021980005336 |
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