Oil sludge separating agent and preparation method thereof

A technology of sludge separation and medicament, which is applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, petroleum industry, etc., can solve the problems of preparation temperature as high as 220-300°C, complicated preparation process operation, complex composition of demulsifier, etc., to achieve Fast and efficient sludge separation effect, good sludge separation effect, low preparation cost and application cost

Active Publication Date: 2017-09-22
ZHEJIANG QICAI ECO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composition of the demulsifier is complex, the preparation process is complicated, and the cost of the product is also very high
[0005] The patent with application number 201410739352.9 disclos

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation: In parts by weight, mix 1 part of cetyltrimethylammonium chloride, 2 parts of hydrochloric acid, 50 parts of water, and 1 part of polypropylene glycol, heat to 70°C and ultrasonically stir and keep warm for 1 hour, and continue to maintain the temperature Microwave treatment was carried out at 70°C to obtain solution 1; ammonium persulfate solution (mass concentration was 5%) was added to solution 1, and the dosage of the solution was 2% of the mass of solution 1, and the reaction was stirred for 2 hours to obtain a clear and transparent solution state Sludge separator.

[0022] Application: The product prepared according to this example is applied to the disposal of oil sludge in an oil field. The amount of oil sludge separating agent added is 1wt% of the mass of the oil sludge. After the addition is completed, stir at 70°C and ultrasonically react for 30 minutes, and let it stand for stratification. Separation of crude oil, sediment and water, the oil slu...

Embodiment 2

[0024] Preparation: The oil sludge separation agent was prepared according to the steps described in Example 1, except that the preparation temperature was 80°C.

[0025] Application: The product prepared according to the steps of this example is used in the oil sludge described in Example 1. The difference in the application method is that the temperature of the ultrasonic process is 80 ° C, and the finally measured oil sludge separation rate reaches 82%. The oil content is less than 1.5%.

Embodiment 4

[0030] Preparation: In parts by weight, 1.5 parts of hexadecyltrimethylammonium chloride; 3 parts of hydrochloric acid; 50 parts of water; 1.5 parts of polypropylene glycol, heated to 70°C and kept at 70°C with ultrasonic stirring for 1 hour, then continued to maintain at 70°C Perform microwave reaction to obtain solution 1; add ammonium persulfate (mass concentration: 7%) to solution 1, the added mass is 1 wt% of the total mass of solution 1, and react for 2 hours. A sludge separation agent is prepared.

[0031] Application: The product of this example is applied to the disposal of oil sludge in an oil field, and the modified oil sludge separating agent is added to the mixed solution of oil sludge water. layer, it can separate crude oil, sediment and water, and the separation rate of oil and sludge reaches 86.5%, and the oil content in the sediment is less than 2%.

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PUM

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Abstract

The invention discloses a preparation method of an oil sludge separating agent. The method comprises the steps of dissolving hexadecyl trimethyl ammonium chloride, hydrochloric acid and polypropylene glycol in water, and increasing the temperature to 70-80 DEG C for thermostatic reaction for 1h-2h; adding in peroxysulphate solution for thermostatic microwave reaction for 2h-3h to obtain a clear solution, namely, the oil sludge separating agent. The oil sludge separating agent contain a large amount of charge, which can be combined with surface charge of oil sludge; inorganic acid and surfactant contained in the oil sludge separating agent can change conditions to produce hydroxyl functional groups to improve the polymerization degree of oil products; interaction of multiple materials can achieve rapid and efficient oil sludge separating effects. Meanwhile, the oil-soil separating agent is low in requirements and influence on sand and water quality, and due to the fact of being prepared through microwave reaction, the oil sludge separating agent can be more significant in effects.

Description

[0001] Application field [0002] The invention relates to the field of petrochemical industry and the field of solid waste treatment, in particular to the preparation and application of an oil sludge separation agent in the petrochemical industry. technical background [0003] In the petrochemical industry, oil sludge pollution has become the main pollutant that endangers the environment and has been listed as hazardous solid waste. Oil sludge has caused serious pollution to the atmosphere, water, soil, animals, plants, and humans. So sludge treatment is imminent. Oil sludge generally contains 5-40% crude oil, which has great recovery value, but the recovery rate of existing methods such as steam stripping and heating sedimentation is very low. [0004] The patent application number 200710027472.6 invented a preparation and treatment method of a demulsifier for treating oily mud sand, using oil-soluble water-dispersed polyether demulsifier, lignin-modified amphoteric polymer...

Claims

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Application Information

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IPC IPC(8): C02F11/00C10G1/00
CPCC02F11/00C10G1/00C10G2300/1003
Inventor 黄关火张云保吕伏建潘世安王平
Owner ZHEJIANG QICAI ECO TECH CO LTD
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