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A kind of oil sludge demulsifier and its preparation method and application

A demulsifier and oil sludge technology, which is applied in chemical instruments and methods, sludge treatment, water/sludge/sewage treatment, etc., can solve the problems of various raw materials, unsatisfactory treatment effect of oily sludge, and complicated preparation process. Achieve the effect of good demulsification effect, low production cost and simple preparation method

Active Publication Date: 2021-10-22
ZHEJIANG QICAI ECO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The demulsifier not only has many kinds of raw materials and complicated preparation process, but also has unsatisfactory treatment effect on oily sludge with high solid content.

Method used

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  • A kind of oil sludge demulsifier and its preparation method and application
  • A kind of oil sludge demulsifier and its preparation method and application
  • A kind of oil sludge demulsifier and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] An oil sludge demulsifier, consisting of the following raw materials in parts by weight:

[0055] Octylphenol polyoxyethylene ether 16%, octadecylamine polyoxyethylene ether 19%, polyethylene polyamine polyoxyethylene polyoxypropylene polyether 15%, turpentine (boiling range 120-170°C) 20%, sodium silicate 1.5%, water 28.5%.

[0056] The preparation method of this oil sludge demulsifier is:

[0057]First add 1 / 2 of the formula amount of water into the reaction kettle, start the agitator, add 1.5% sodium silicate, stir for 20 minutes until the sodium silicate is completely dissolved, then add 16% octylphenol polyoxyethylene ether, octadecylamine Polyoxyethylene ether 19%, polyethylene polyamine polyoxyethylene polyoxypropylene polyether 15%, heat preservation reaction for 30 minutes, finally add 20% turpentine (boiling range 120-170°C), disperse evenly, add remaining water, heat up to 40°C, continue to stir for 30 minutes, then stop stirring, cool down to room temperat...

Embodiment 2

[0060] An oil sludge demulsifier, consisting of the following raw materials in parts by weight:

[0061] Octylphenol polyoxyethylene ether 8%, octadecylamine polyoxyethylene ether 10%, polyethylene polyamine polyoxyethylene polyoxypropylene polyether 10%, turpentine (boiling range 120-170°C) 15%, sodium silicate 0.5%, water 56.5%.

[0062] The preparation method of this oil sludge demulsifier is:

[0063] First add 1 / 2 of the formula amount of water into the reaction kettle, start the agitator, add 0.5% sodium silicate, stir for 20 minutes until the sodium silicate is completely dissolved, then add 8% octylphenol polyoxyethylene ether, octadecylamine 10% polyoxyethylene ether, 10% polyethylene polyamine polyoxyethylene polyoxypropylene polyether, keep warm for 30 minutes, and finally add 15% turpentine (boiling range 120-170°C), disperse evenly, add the remaining water, and heat up to 40°C, continue to stir for 30 minutes, then stop stirring, cool down to room temperature, a...

Embodiment 3

[0066] An oil sludge demulsifier, consisting of the following raw materials in parts by weight:

[0067] Octylphenol polyoxyethylene ether 20%, octadecylamine polyoxyethylene ether 18%, polyethylene polyamine polyoxyethylene polyoxypropylene polyether 20%, turpentine (boiling range 120-170°C) 15%, sodium silicate 1.0%, water 26%.

[0068] The preparation method of this oil sludge demulsifier is:

[0069] First add 1 / 2 of the formula amount of water into the reaction kettle, start the agitator, add 1.0% sodium silicate, stir for 20 minutes until the sodium silicate is completely dissolved, then add 20% octylphenol polyoxyethylene ether, octadecylamine Polyoxyethylene ether 18%, polyethylene polyamine polyoxyethylene polyoxypropylene polyether 20%, heat preservation reaction for 30 minutes, finally add 15% turpentine (boiling range 120-170°C), disperse evenly, add remaining water, heat up to 40°C, continue to stir for 30 minutes, then stop stirring, cool down to room temperatu...

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Abstract

The invention discloses an oil sludge demulsifier, which is composed of the following raw materials in weight percent: 8-22% of alkylphenol polyoxyethylene ether; 10-25% of fatty amine polyoxyethylene ether; 10-20% of AE type surfactant ; Turpentine 10‑30%; Alkali 0.5‑2.5%; The balance is water. The invention also discloses the preparation method of the oil sludge demulsifier and its application in treating oil sludge. The various raw materials complement each other and act synergistically to realize the reduction and recycling of oily sludge.

Description

technical field [0001] The invention relates to the technical field of demulsifiers, in particular to an oil sludge demulsifier and its preparation method and application. Background technique [0002] A large amount of black solid and semi-solid waste containing oil will be produced in the process of oil extraction, gathering and transportation, refining and oily sewage treatment, which is called oil sludge, and its main components are oil, mud and water. The size of solid particles in oil sludge can range from less than microns to several inches, most of which are between 1 and 100 microns. The composition of oil depends on the type of crude oil, refinery structure and operating conditions. The composition of sludge may change over time. According to statistics, China's annual output of oil sludge is nearly 3 million tons, which contains about 600,000 tons of crude oil resources. In addition to a large amount of aged crude oil, waxy, and colloidal substances, the oil slud...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/14
CPCC02F11/00C02F11/14
Inventor 付玲玲张清义
Owner ZHEJIANG QICAI ECO TECH CO LTD
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