Temperature-resistant oil removing agent for oily sewage of oil fields and preparation method of temperature-resistant oil removing agent

A technology for degreasing agent and oily sewage, applied in the direction of grease/oily substance/suspton removal device, separation method, chemical instrument and method, etc., can solve the problems of unsatisfactory effect of oily sewage, complicated preparation method, expensive price, etc. Achieve the effect of high oil removal efficiency, simple synthesis process and strong adaptability

Active Publication Date: 2018-10-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main shortcoming of this invention is that its preparation method is complicated, the price is expensive, and the effect to oily sewage is unsatisfactory
[0004] Patent ZL201410254042.8 "a composite flocculation degreasing agent for oily sewage treatment" is made of aluminum sulfate, magnesium chloride, magnesium hydroxide, bentonite and polyacrylamide. High efficiency, simple preparation, low cost, etc., but the degreasing agent needs to use corrosive magnesium hydroxide, which has a strong corrosive effect on equipment

Method used

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  • Temperature-resistant oil removing agent for oily sewage of oil fields and preparation method of temperature-resistant oil removing agent
  • Temperature-resistant oil removing agent for oily sewage of oil fields and preparation method of temperature-resistant oil removing agent
  • Temperature-resistant oil removing agent for oily sewage of oil fields and preparation method of temperature-resistant oil removing agent

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Experimental program
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Effect test

example 1

[0037] The preparation of example 1 degreasing agent A

[0038] (1) Weigh 1kg of acrylic acid, 15kg of butyl acrylate, 10kg of styrene, 4.2kg of ethyl acrylate, TX-100.6kg, 1kg of MS-1, 0.08kg of sodium lauryl sulfate, 0.4kg of 20% ammonia water and 20kg of water Place in the first reaction kettle, stir at room temperature for 1.5 hours, and the stirring speed is 80rpm to obtain a mixture solution;

[0039] (2) Add 50 kg of water and 59 kg of methacrylamide to the second reaction kettle, and stir at room temperature for 0.5 h to obtain an aqueous solution of methacrylamide;

[0040] (3) Transfer the aqueous methacrylamide solution in the second reaction kettle to the mixture solution in the first reaction kettle, and stir at room temperature for 20 minutes to obtain an emulsion;

[0041] (4) 80% of the mass ratio of the emulsion in the first reactor is transferred to the first head tank;

[0042] (5) Add 0.6kg of hydrogen peroxide and 2kg of water in the second high tank;

...

Embodiment 2

[0053] The preparation of embodiment 2 degreasing agent B

[0054] (1) Weigh 1kg of acrylic acid, 4kg of butyl acrylate, 30kg of styrene, 6.0kg of ethyl acrylate, TX-101.0kg, 0.4kg of MS-1, 0.05kg of sodium lauryl sulfate, 0.1kg of 20% ammonia water and water 10 kg was placed in the first reaction kettle, stirred at room temperature for 1 hour, and the stirring speed was 50 rpm to obtain a mixture solution;

[0055](2) Add 10 kg of water and 20 kg of methacrylamide to the second reaction kettle, and stir at room temperature for 1 hour to obtain an aqueous solution of methacrylamide;

[0056] (3) Transfer the methacrylamide aqueous solution in the second reaction kettle to the mixture solution in the first reaction kettle, and stir at room temperature for 10 minutes to obtain an emulsion;

[0057] (4) 70% of the mass ratio of the emulsion in the first reactor is transferred to the first head tank;

[0058] (5) Add 0.1kg of hydrogen peroxide and 0.5kg of water in the second hi...

Embodiment 3

[0069] The preparation of embodiment 3 degreasing agent C

[0070] (1) Weigh 1kg of acrylic acid, 20kg of butyl acrylate, 14.0kg of styrene, 9.8kg of ethyl acrylate, TX-100.3kg, 1.5kg of MS-1, 0.2kg of sodium lauryl sulfate, 0.5kg of 20% ammonia water and 30 kg of water was placed in the first reaction kettle, stirred at room temperature for 2.5 hours, and the stirring speed was 110 rpm to obtain a mixture solution;

[0071] (2) Add 100 kg of water and 45.0 kg of methacrylamide to the second reaction kettle, and stir at room temperature for 2 hours to obtain an aqueous solution of methacrylamide;

[0072] (3) Transfer the aqueous methacrylamide solution in the second reaction kettle to the mixture solution in the first reaction kettle, and stir at room temperature for 30 minutes to obtain an emulsion;

[0073] (4) 90% of the mass ratio of the emulsion in the first reactor is transferred to the first head tank;

[0074] (5) Add 1.0kg of hydrogen peroxide and 5kg of water in t...

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Abstract

The invention belongs to the technical field of sewage treatment and particularly relates to a temperature-resistant oil removing agent for the oily sewage of oil fields and a preparation method of the temperature-resistant oil removing agent. The molecular formula of the oil removing agent is as shown in the specification. The oil removing agent has the advantages that the oil removing agent is simple in synthesizing process, low in cost, high in adaptability, high in temperature resistance, good in oil removing effect and capable of resisting high temperature up to 200 DEG C, the oil removing rate of the oil removing agent reaches above 99%, and the oil removing rate of the oil removing agent is increased by more than 60% as compared with that of existing oil removing agents; accordingly, the oil removing agent is widely applicable to the oil removing process of the oily sewage of the oil fields.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a temperature-resistant degreasing agent for oily sewage treatment in oilfields and a preparation method thereof. Background technique [0002] With the increasing environmental pollution, the control and treatment of water environmental pollution has gradually attracted enough attention and made progress in all aspects. The current conventional treatment process (natural sedimentation-coagulation sedimentation-filtration) is difficult to effectively treat oily sewage. For example, the air flotation method uses an air flotation machine to remove most of the oil, polymers and suspended solids in the water, because some oilfield sewage will contain polymers, which will double the viscosity of the sewage and increase the oil-carrying capacity of the water phase; The particle size of medium oil droplets is small, and the oil droplets are stable in the water; the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/54C08F220/18C08F220/06C08F212/08C02F1/40B01D17/05C02F103/10
CPCB01D17/047C02F1/40C02F2103/10C08F212/08C08F220/54C08F220/1804C08F220/18C08F220/06
Inventor 肖建洪潘永强张守献袁长忠徐鹏徐闯冯逸茹曹嫣镔宋永亭林军章
Owner CHINA PETROLEUM & CHEM CORP
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