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Processing process of sulfuric acid containing petrol

A treatment process, sulfuric acid-containing technology, applied in the petroleum industry, hydrocarbon oil dehydration/demulsification, refining with metal salts, etc. The effect of good effect and high oil yield

Inactive Publication Date: 2008-12-24
张吉照
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  • Abstract
  • Description
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Problems solved by technology

However, this method does not remove sulfuric acid completely, the oil recovery rate is low, the reduction effect is poor, the operation process is cumbersome, and more waste gas and waste emissions are likely to cause secondary pollution.

Method used

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Embodiment Construction

[0011] A), heating petroleum oil containing sulfuric acid to 55°C to 58°C, and maintaining the temperature, adding an equal volume of dispersant and stirring evenly to obtain the intermediate of step A; the dispersant dissolves the activity at a temperature of 55°C to 58°C Maximum, and under the changed temperature, it is not easy to cause volatilization of sulfuric acid, avoiding secondary pollution of the environment. Described dispersant is the eutectic solution of sodium chloride, lead acetate, water, and wherein the ratio of parts by weight of sodium chloride, lead acetate, water is 4-5: 0.8-1.2: 90-98; The ratio that present embodiment adopts is 5:1:94; of course, the ratio can also be properly adjusted according to the content of sulfuric acid and the viscosity of petroleum.

[0012] B), the intermediate of step A is heated to 75 ℃ ~ 85 ℃ and keep changing temperature, add demulsifier while stirring, the consumption of demulsifier is 3% ~ 5% of the middle weight of step...

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Abstract

The invention relates to a process for treating sulfuric acid-containing petroleum. The process comprises the following steps that: sulfuric acid-containing petroleum is heated to between 55 and 58 DEG C, and a dispersing agent with equal volume is added and stirred evenly; then, the mixture is heated to between 75 and 85 DEG C; a demulsifier is added while stirring the mixture; finally, a neutralizer is added and stirred till the mixture is evenly mixed; then, the mixture is allowed to stand till oil and water are separated, and lower water-soluble liquid is discharged so as to obtain petroleum not containing sulfuric acid. The process is simple and has easy operation, excellent separation effect and high petroleum product yield; moreover, the entire process is carried out at an intermediate temperature in a closed state under normal pressure, and does not generate waste gas and waste and secondary pollution; therefore, the process is an effective method for treating the sulfuric acid-containing petroleum at present.

Description

technical field [0001] The invention relates to a process for treating petroleum containing sulfuric acid. Background technique [0002] During the production process of petrochemical plants, a large amount of waste oil containing sulfuric acid will be produced. The main component of this waste oil is petroleum, but due to the large amount of sulfuric acid, it cannot be used directly. If the sulfuric acid component can be removed, the remaining petroleum component can still be utilized. The traditional treatment process is to use an open container to heat sulfuric acid-containing petroleum to above 200°C, use high temperature to volatilize part of the sulfuric acid in it, then lower the temperature to about 60°C and add sodium hydroxide to neutralize the remaining sulfuric acid, and finally use silica gel to absorb , to obtain relatively pure oil. However, this method does not completely remove sulfuric acid, has low oil recovery rate, poor reduction effect, cumbersome ope...

Claims

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Application Information

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IPC IPC(8): C10G33/00C10G29/06C10G29/16
Inventor 张吉照
Owner 张吉照
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