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A preparing method of an amino acid demulsifier

The technology of amine acid demulsifier and emulsifier is applied in the field of preparation of amine acid demulsifier, which can solve the problems of blockage of filling pipeline, increase of oil content in sulfur-containing sewage, and difficulty in elimination, etc., so as to reduce corrosion, clear water body, and reduce oil content. amount of effect

Inactive Publication Date: 2016-04-20
YIXING FENGYE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to the deterioration of processed crude oil, the sulfur content and acid content in crude oil have gradually increased. The medium in the oil-water separation tank at the top of the fractionation tower contains a large amount of decomposition to produce mercaptans, phenols, naphthenic acids and other substances. These substances play an emulsifying role. The effect of the agent can easily cause emulsification in the oil-water separation tank, and the nature of the emulsion is stable and difficult to eliminate
Emulsification leads to a substantial increase in the oil content in the discharged sulfur-containing sewage. A large amount of oily sewage will cause difficulty in oil-water separation in the subsequent sewage stripping unit, increase the sewage treatment capacity, and increase the energy consumption of the device.
[0003] To solve such problems, the polymer aluminum used in sewage treatment is often used to promote the dispersion and demulsification of the emulsion and the coagulation and stratification of water droplets. In the actual use process, the use of polymer aluminum is large, it is not easy to inject, and it is easy to block the filling pipeline. , Demulsification effect is not obvious and other shortcomings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Take oleic acid and pentaethylenehexamine with a mass ratio of 1:1 and introduce them into the reaction pot. After vacuuming, fill with nitrogen, and control the pressure at 0.3-0.4MPa; stir while raising the temperature. When the temperature in the reaction pot rises to 100°C, turn on Vacuum dehydration and continue to heat up until 155 ° C, stop heating, continue dehydration for 16 hours; lower the temperature in the reaction pot to start cooling, and cool to room temperature; vacuum pump the emulsifier into the reaction pot, heat up to 75 ° C, Insulation and compounding for 1 hour, after completion, take out and put into barrels, and the amount of emulsifier added is 20% of the mass of the mixed materials in the previous reaction pot.

[0014] Wherein, the preparation method of the emulsifier in the step (4) is: take fatty acid methyl ester, lauroyl diethanolamine, isopropanol, paraffin and water with a mass ratio of 5:2:2:1:3, and mix Add fatty acid methyl ester and...

Embodiment 2

[0016] Take oleic acid and pentaethylenehexamine with a mass ratio of 2:1 into the reaction pot, vacuumize and fill with nitrogen, the pressure is controlled at 0.3-0.4MPa; stir while heating up, when the temperature in the reaction pot rises to 100°C, open Vacuum dehydration and continue to heat up until 165 ° C, stop heating, continue dehydration for 14 hours; lower the temperature in the reaction pot to start cooling, and cool to room temperature; vacuum pump the emulsifier into the reaction pot, heat up to 85 ° C, Heat preservation and compounding for 1 to 2 hours, take out and put into barrels after completion, and the amount of the emulsifier added is 30% of the mass of the mixed materials in the previous reaction pot.

[0017] Wherein, the preparation method of the emulsifier in the step (4) is: take fatty acid methyl ester, lauroyl diethanolamine, isopropanol, paraffin and water with a mass ratio of 5:2:2:1:3, and mix Add fatty acid methyl ester and lauroyl diethanolam...

Embodiment 3

[0019] Take oleic acid and pentaethylenehexamine with a mass ratio of 1.5:1 into the reaction pot, vacuumize and fill with nitrogen, the pressure is controlled at 0.3-0.4MPa; stir while heating up, when the temperature in the reaction pot rises to 100°C, open Vacuum dehydration and continue to heat up until 160°C, stop the temperature rise, and continue to dehydrate for 15 hours; lower the temperature in the reaction pot to start cooling, and cool to room temperature; vacuum pump the emulsifier into the reaction pot, heat up to 80°C, Insulation and compounding for 2 hours, after completion, take out and pack into barrels, and the amount of emulsifier added is 25% of the mass of the mixed material in the previous reaction pot.

[0020] Wherein, the preparation method of the emulsifier in the step (4) is: take fatty acid methyl ester, lauroyl diethanolamine, isopropanol, paraffin and water with a mass ratio of 5:2:2:1:3, and mix Add fatty acid methyl ester and lauroyl diethanola...

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PUM

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Abstract

A preparing method of an amino acid demulsifier is disclosed. The amino acid demulsifier is prepared from oleic acid and pentaethylenehexamine and by heating, dehydrating, cooling, adding a certain amount of an emulsifier and blending. The amino acid demulsifier achieves rapid demulsification of an oil-water separating tank of a delayed coker and significantly reduces the oil content of discharged water. A water body is clear after demulsification. The amino acid demulsifier reduces device corrosion caused by the water body, is free of inorganic ions and has no influence on water body systems at present.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a preparation method of an amine acid demulsifier. Background technique [0002] In recent years, due to the deterioration of processed crude oil, the sulfur content and acid content in crude oil have gradually increased. The medium in the oil-water separation tank at the top of the fractionation tower contains a large amount of decomposition to produce mercaptans, phenols, naphthenic acids and other substances. These substances play an emulsifying role. Due to the action of the agent, it is very easy to cause emulsification in the oil-water separation tank, and the nature of the emulsion is stable and difficult to eliminate. Emulsification leads to a substantial increase in the oil content in the discharged sulfur-containing sewage. A large amount of oily sewage will cause difficulties in oil-water separation in the subsequent sewage stripping unit, increase the sewa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/40
CPCC02F1/40B01D17/04C02F2103/365
Inventor 张烨张伯南
Owner YIXING FENGYE CHEM CO LTD
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