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A kind of oily sludge treatment agent and its preparation and use method

A sludge treatment and chemical technology, applied in the field of oily sludge treatment chemicals, can solve the problems of affecting the environmental ecosystem, poor biodegradability, inconvenient crude oil recovery, etc., achieving good treatment effect, low production cost, and easy industrial application. Effect

Active Publication Date: 2016-01-27
SHAANXI YANCHANG PETROLEUM GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The five methods can achieve better treatment effects on oily sludge to a certain extent, but each method has its own advantages, disadvantages and scope of application
For example, although surfactant elution and oil removal show a high oil removal rate, it requires a high concentration and processing temperature, which will make oil and water miscible and in an emulsified state, which is not convenient for the recovery of crude oil; and biodegradation Poor, with a certain degree of toxicity, seriously affecting the environmental ecosystem

Method used

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  • A kind of oily sludge treatment agent and its preparation and use method
  • A kind of oily sludge treatment agent and its preparation and use method
  • A kind of oily sludge treatment agent and its preparation and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Preparation of raw materials: fatty alcohol polyoxyethylene ether carboxylate 2.5g, fatty alcohol polyoxyethylene ether (9) 2.5g, protease 0.5g, lipase 0.5g, cellulase 0.5g, calcium chloride 0.1g, Propylene glycol 7.5g, water 85.9g.

[0030] 2. Preparation steps:

[0031] (1) Dissolve propylene glycol in water, stir well, and heat to 40~50℃;

[0032] (2) Add the compound surfactant to the hot solution of propylene glycol and fully stir to dissolve;

[0033] (3) Add calcium chloride and stir to dissolve;

[0034] (4) Cool the above solution to about 25~30℃, add protease, and stir evenly to obtain the oily sludge treatment agent.

[0035] 3. Interfacial tension test and treatment effect evaluation of oily sludge treatment agents:

[0036] Processing process:

[0037] The prepared oily sludge treatment agent was diluted with tap water to 0.25wt%, 0.5wt%, 1.0wt% and 2.0wt% respectively, and its interfacial tension was detected. When testing,

[0038] Instrument: Rotating drop interf...

Embodiment 2

[0050] 1. Preparation of raw materials: fatty alcohol polyoxyethylene ether sodium sulfate 3.5g, fatty alcohol polyoxyethylene ether (9) 3.5g, protease 0.5g, lipase 0.5g, calcium chloride 0.05g, propylene glycol 5g, water 90.95g.

[0051] 2. Preparation steps:

[0052] (1) Dissolve propylene glycol in water, stir well, and heat to 40~50℃;

[0053] (2) Add the compound surfactant to the hot solution of propylene glycol and fully stir to dissolve;

[0054] (3) Add calcium chloride and stir to dissolve;

[0055] (4) Cool the above solution to about 25~30℃, add biological enzymes, and stir evenly to obtain the oily sludge treatment agent.

[0056] 3. Interfacial tension test and treatment effect evaluation of oily sludge treatment agents:

[0057] The prepared oily sludge treatment agent was diluted to 0.25wt%, 0.5wt%, 1.0wt% and 2.0wt% with the oilfield produced water after treatment, and the interfacial tension was detected. When testing,

[0058] Instrument: Rotating drop interfacial tensi...

Embodiment 3

[0070] 1. Preparation of raw materials: 1.5g fatty alcohol polyoxyethylene ether carboxylate, 1.5g fatty alcohol polyoxyethylene ether (9), 0.25g lipase, 0.05g calcium chloride, 5g propylene glycol, 91.7g water.

[0071] 2. Preparation steps:

[0072] (1) Dissolve propylene glycol in water, stir well, and heat to 40~50℃;

[0073] (2) Add the compound surfactant to the hot solution of propylene glycol and fully stir to dissolve;

[0074] (3) Add calcium chloride and stir to dissolve;

[0075] (4) Cool the above solution to about 25~30℃, add cellulase, and stir evenly to obtain the oily sludge treatment agent.

[0076] 3. Interfacial tension test and treatment effect evaluation of oily sludge treatment agents:

[0077] The prepared oily sludge treatment agent was diluted with tap water to 0.25wt%, 0.5wt%, 1.0wt% and 2.0wt% respectively, and its interfacial tension was detected. When testing,

[0078] Instrument: Rotating drop interfacial tension meter (Site100, KRUSS, Germany)

[0079] Tempe...

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Abstract

The invention relates to an oily sludge treatment medicament and a preparation and using method thereof, in particular to a treatment medicament for tank bottom mud generated in the crude oil storage and transportation process and oily sludge generated in oil refineries, and belongs to the technical field of oilfield chemical engineering. In order to achieve the purpose, through the technical scheme adopted by the invention, the oily sludge treatment medicament consists of the following components by mass percent: 2.5-10.0 wt% of a surface active agent, 0.25-2.0 wt% of biological enzyme, 0.05-0.2 wt% of calcium chloride, 5-10 wt% of propylene glycol and the balance of water. According to the oily sludge treatment medicament prepared by the invention, the oil-water interfacial tension can be effectively reduced to be 10<-2> N / m at room temperature; the oily sludge treatment medicament can be applied to the treatment of various oily sludge generated in the processes of oil exploitation, product storage and transportation and refining processing.

Description

Technical field [0001] The invention relates to an oily sludge treatment agent and a preparation and use method thereof, in particular to a treatment agent for tank bottom sludge produced during crude oil storage and transportation and oily sludge produced by an oil refinery, belonging to the technical field of oil field chemical industry. Background technique [0002] Oily sludge is one of the main pollutants produced during oilfield development, oil storage, transportation, and refining. Its main components are crude oil, water and silt. It has the characteristics of high oil content, high viscosity, fine particles, and difficult dehydration. . According to statistics, at present, the total amount of oily sludge produced in my country every year is more than 5 million tons, of which the crude oil resources contained are about 1 million tons. As most oil fields enter the middle and late stages of exploitation, the water content in the produced oil is increasing. The higher the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00
CPCC10G1/00C10G2300/1003
Inventor 魏彦林杨志刚吕雷刘立张世君王珂封子艳南蓓蓓方晓君张淑侠
Owner SHAANXI YANCHANG PETROLEUM GRP
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