Thick oil sewage treating agent as well as preparation method and application thereof

Abstract

The invention discloses a thick oil sewage treating agent as well as a preparation method and an application thereof. The treating agent is prepared from raw materials in parts by weight as follows: 7-15 parts of urea peroxide, 15-25 parts of tartaric acid, 1-5 parts of alkylphenol poluoxyethylene ether, 33-41 parts of calamine and 11-19 parts of magnesium silicate. The calamine and magnesium silicate are used as main materials, the treating agent sequentially treated with tartaric acid, urea peroxide and alkylphenol poluoxyethylene ether has significant thick oil sewage treatment effect, is small in usage amount, takes short time and causes no corrosion to equipment; the preparation process is simple, easy to control and suitable for industrial production. The deposition speed of sludge formed with the treating agent is high and the moisture content of deposited sludge is low; treated clear water is clear and transparent, the oil content and suspended solids conform to indexes specified for oil field reinjection water, and the treating agent is applicable for purification and decoloration of oil field, petrochemical engineering and industrial sewage as well as urban domestic sewage.

Description

technical field

[0001] The invention relates to the technical field of environmental protection materials, in particular to a heavy oil sewage treatment agent and its preparation method and application. Background technique

[0002] In the oil-water separation process of heavy oil emulsion, the oil-water density difference of heavy oil sewage is small; heavy oil sewage has high impurities and high water hardness; viscosity reducers are often added in the development process, and oily sewage not only contains a large number of cations and anions , making the composition of heavy oil sewage more complex, with high oil content and serious emulsification of sewage, which increases the difficulty of demulsification of heavy oil sewage; heavy oil sewage has greater viscosity, especially when the water temperature is low, The water temperature of heavy oil sewage is as high as 70-80°C; with the change of heavy oil thermal recovery method and the increase of mining life, the amount ...

Examples

Embodiment 1

[0018] In the embodiment of the present invention, a heavy oil sewage treatment agent is composed of the following raw materials in parts by weight: 7 parts of urea peroxide, 15 parts of tartaric acid, 1 part of alkylphenol polyoxyethylene ether, 33 parts of calamine, silicon Magnesium acid 11 parts.

[0019] Tartaric acid is mixed with deionized water to prepare a tartaric acid solution with a mass content of 18%. Calamine and magnesium silicate were mixed and ground for 1 hour, then mixed with tartaric acid solution, heated to 79°C, and stirred at this temperature for 1.5 hours; then ultrasonically treated for 1.5 hours with an ultrasonic power of 700W to prepare mixture A. Cool the mixture A to 58°C, then add urea peroxide, and stir at a stirring speed of 100r / min for 1h, then add alkylphenol polyoxyethylene ether, at a temperature of 72°C, at a stirring speed of 150r / min Stir for 1.8 hours, dry and place at 220°C for 1 hour to obtain the treatment agent.

Embodiment 2

[0021] In the embodiment of the present invention, a heavy oil sewage treatment agent is composed of the following raw materials in parts by weight: 15 parts of urea peroxide, 25 parts of tartaric acid, 5 parts of alkylphenol polyoxyethylene ether, 41 parts of calamine, silicon Magnesium acid 19 parts.

[0022] Tartaric acid and deionized water are mixed to prepare a tartaric acid solution with a mass content of 25%. Calamine and magnesium silicate were mixed and ground for 1.2h, then mixed with tartaric acid solution, heated to 82°C, and stirred at this temperature for 1.8h; then ultrasonically treated for 1.8h with ultrasonic power of 700W to prepare mixture A. Cool mixture A to 62°C, then add urea peroxide, and stir at a stirring speed of 130r / min for 1.2h, then add alkylphenol polyoxyethylene ether, at a temperature of 75°C, stirring at a speed of 200r / min Stir at low temperature for 2 hours, dry and place at 250°C for 1.5 hours to obtain the treatment agent.

Embodiment 3

[0024] In the embodiment of the present invention, a heavy oil sewage treatment agent is composed of the following raw materials in parts by weight: 9 parts of urea peroxide, 18 parts of tartaric acid, 2 parts of alkylphenol polyoxyethylene ether, 35 parts of calamine, silicon Magnesium acid 13 parts.

[0025] Tartaric acid is mixed with deionized water to prepare a tartaric acid solution with a mass content of 22%. Calamine and magnesium silicate were mixed and ground for 1.1h, then mixed with tartaric acid solution, heated to 80°C, and stirred at this temperature for 1.6h; then ultrasonically treated for 1.6h with ultrasonic power of 700W to prepare mixture A. Cool mixture A to 60°C, then add urea peroxide, and stir at a stirring speed of 120r / min for 1.1h, then add alkylphenol polyoxyethylene ether, at a temperature of 73°C, stirring at a speed of 180r / min Stir for 1.9 hours, dry and place at 230°C for 1.2 hours to obtain the treatment agent.

technical field

[0001] The invention relates to the technical field of environmental protection materials, in particular to a heavy oil sewage treatment agent and its preparation method and application. Background technique

[0002] In the oil-water separation process of heavy oil emulsion, the oil-water density difference of heavy oil sewage is small; heavy oil sewage has high impurities and high water hardness; viscosity reducers are often added in the development process, and oily sewage not only contains a large number of cations and anions , making the composition of heavy oil sewage more complex, with high oil content and serious emulsification of sewage, which increases the difficulty of demulsification of heavy oil sewage; heavy oil sewage has greater viscosity, especially when the water temperature is low, The water temperature of heavy oil sewage is as high as 70-80°C; with the change of heavy oil thermal recovery method and the increase of mining life, the amount ...

Examples

Embodiment 1

[0018] In the embodiment of the present invention, a heavy oil sewage treatment agent is composed of the following raw materials in parts by weight: 7 parts of urea peroxide, 15 parts of tartaric acid, 1 part of alkylphenol polyoxyethylene ether, 33 parts of calamine, silicon Magnesium acid 11 parts.

[0019] Tartaric acid is mixed with deionized water to prepare a tartaric acid solution with a mass content of 18%. Calamine and magnesium silicate were mixed and ground for 1 hour, then mixed with tartaric acid solution, heated to 79°C, and stirred at this temperature for 1.5 hours; then ultrasonically treated for 1.5 hours with an ultrasonic power of 700W to prepare mixture A. Cool the mixture A to 58°C, then add urea peroxide, and stir at a stirring speed of 100r / min for 1h, then add alkylphenol polyoxyethylene ether, at a temperature of 72°C, at a stirring speed of 150r / min Stir for 1.8 hours, dry and place at 220°C for 1 hour to obtain the treatment agent.

Embodiment 2

[0021] In the embodiment of the present invention, a heavy oil sewage treatment agent is composed of the following raw materials in parts by weight: 15 parts of urea peroxide, 25 parts of tartaric acid, 5 parts of alkylphenol polyoxyethylene ether, 41 parts of calamine, silicon Magnesium acid 19 parts.

[0022] Tartaric acid and deionized water are mixed to prepare a tartaric acid solution with a mass content of 25%. Calamine and magnesium silicate were mixed and ground for 1.2h, then mixed with tartaric acid solution, heated to 82°C, and stirred at this temperature for 1.8h; then ultrasonically treated for 1.8h with ultrasonic power of 700W to prepare mixture A. Cool mixture A to 62°C, then add urea peroxide, and stir at a stirring speed of 130r / min for 1.2h, then add alkylphenol polyoxyethylene ether, at a temperature of 75°C, stirring at a speed of 200r / min Stir at low temperature for 2 hours, dry and place at 250°C for 1.5 hours to obtain the treatment agent.

Embodiment 3

[0024] In the embodiment of the present invention, a heavy oil sewage treatment agent is composed of the following raw materials in parts by weight: 9 parts of urea peroxide, 18 parts of tartaric acid, 2 parts of alkylphenol polyoxyethylene ether, 35 parts of calamine, silicon Magnesium acid 13 parts.

[0025] Tartaric acid is mixed with deionized water to prepare a tartaric acid solution with a mass content of 22%. Calamine and magnesium silicate were mixed and ground for 1.1h, then mixed with tartaric acid solution, heated to 80°C, and stirred at this temperature for 1.6h; then ultrasonically treated for 1.6h with ultrasonic power of 700W to prepare mixture A. Cool mixture A to 60°C, then add urea peroxide, and stir at a stirring speed of 120r / min for 1.1h, then add alkylphenol polyoxyethylene ether, at a temperature of 73°C, stirring at a speed of 180r / min Stir for 1.9 hours, dry and place at 230°C for 1.2 hours to obtain the treatment agent.

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