Method for removing sediment in tar sand oil

A technology for oil sand oil and mud sand, which is applied in the direction of multi-stage series refining process treatment, etc., can solve the problems of limited cyclone separation strength and poor removal effect, and achieves promotion of aggregation and settlement, improved production efficiency, and short cycle time. Effect

Inactive Publication Date: 2016-08-17
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method shortens the period of mud and sand removal in oil products to a certain extent, but due to the limited strength of cyclone separation, it can only remove coarse sand mixed in oil products, and remove mud powder with smaller particle size. In addition to the effect is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Mix 50g of oil sand oil with 50g of naphtha and stir for 10min at a temperature of 30°C to fully dilute the asphalt. After the stirring is finished, add 25g of compound reagent prepared by calcium chloride and hydrochloric acid to the mixed oil, the mass fraction of hydrochloric acid in the compound reagent is 1%, the mass fraction of calcium chloride is 0.1%, stir at a temperature of 30°C The time is 10 minutes, and the sedimentation is 20 minutes. The sample is layered, the upper layer is purified mixed oil, and the lower layer is sediment. The upper mixed oil is distilled to recover diluent naphtha and obtain purified bitumen. Determination of the content of mechanical impurities such as sediment in purified asphalt. The removal rate of mechanical impurities is 95.2%.

Embodiment 2

[0013] Mix 50g of oil sand oil with 5g of toluene and stir for 10min at a temperature of 70°C to fully dilute the asphalt. After the stirring is finished, add 15g of compound reagent prepared by calcium nitrate and nitric acid to the mixed oil. The mass fraction of nitric acid in the compound reagent is 10%, and the mass fraction of calcium nitrate is 2%. 10 minutes, settling for 20 minutes, the sample is separated, the upper layer is purified mixed oil, and the lower layer is sediment. Distill the mixed oil in the upper layer to recover the diluent toluene and obtain purified asphalt. Determination of the content of mechanical impurities such as sediment in purified asphalt. The removal rate of mechanical impurities is 97.5%.

Embodiment 3

[0015] Take 50g oil sand oil and 25g 120 # Mix with solvent oil and stir for 10 minutes at a temperature of 100°C to fully dilute the asphalt. After the stirring is finished, add 5g of compound reagent prepared by magnesium chloride and formic acid to the mixed oil, the mass fraction of formic acid in the compound reagent is 20%, the mass fraction of magnesium chloride is 5%, and the stirring time is 10min at a temperature of 100°C. After settling for 20 minutes, the samples were layered, the upper layer was purified mixed oil, and the lower layer was sediment. The upper layer mixed oil is distilled, and the diluent 120 is recovered # mineral spirits, while getting purified bitumen. Determination of the content of mechanical impurities such as sediment in purified asphalt. The removal rate of mechanical impurities is 95.8%.

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PUM

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Abstract

The invention discloses a method for removing mud and sand in oil sand oil. The diluent and oil sand oil are mixed according to the agent-oil ratio of 0.1-1:1, and stirred at 30-100°C for 10 minutes to fully dilute the oil sand oil , to obtain diluted mixed oil, add the compound reagent to the diluted mixed oil according to the agent-oil ratio of 0.1-0.5:1, fully stir at 30-100°C and let it stand, the system is layered, the upper layer is purified mixed oil, and the lower layer is mud sand , The upper layer purifies the mixed oil to distill and recover the diluent for recycling to obtain purified oil sand oil, and the lower layer sediment discharge system. This method has a simple process and a short desilting cycle, which can greatly improve the production efficiency of oil sand oil desilting.

Description

technical field [0001] The invention relates to the field of purification of oil sand oil, in particular to a method for removing mud and sand in oil sand oil. Background technique [0002] Oil sand oil, also known as oil sand bitumen, is a heavy heavy oil separated from unconventional energy oil sands. Oil sand oil has the characteristics of high density, high viscosity and high content of mechanical impurities such as mud and sand, so it is difficult to be directly processed and utilized. At present, a series of technologies have been preliminarily developed for desliming and sanding of crude oil, but there are few studies on desliming and sanding of heavy heavy oil. The existing crude oil deslagging treatment technologies have their own advantages and disadvantages, and all have their certain scope of application. They also have defects such as long silt removal cycle and incomplete silt removal, which limit the industrial production efficiency of crude oil purification....

Claims

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Application Information

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IPC IPC(8): C10G53/02
CPCC10G53/02
Inventor 韩冬云罗宽勇石薇薇乔海燕曹祖斌
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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