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Method for preparing oil-based composite oil product drag reducer from finished oil decoloring spent bleaching clay

A technology of waste clay and drag reducer, which is applied in the field of drag reduction and increase transmission, can solve the problems of drag reducer loss of application performance, molecular chain breakage and shear degradation, etc., to reduce the cost of injection application, promote synergy, and enhance application performance effect

Active Publication Date: 2016-07-06
SHENGLI COLLEGE CHINA UNIV OF PETROLEUM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polymer drag reducing polymer is prone to molecular chain breakage and shear degradation during the application process, and this shear degradation property is permanent and irreversible, so the drag reducer loses its application performance

Method used

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  • Method for preparing oil-based composite oil product drag reducer from finished oil decoloring spent bleaching clay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: The method for preparing an oil-based composite oil drag reducer from the decolorized waste clay of finished oil mentioned in the present invention is as follows:

[0029] Weigh 100g of waste clay after gasoline decolorization, put it into a ball mill for grinding for 60min, sieve through a 400-mesh sieve, keep the waste clay powder that has passed through the sieve, dry it at 100°C for 48h, and then place it in a muffle furnace. Under the protection of nitrogen, bake at 600°C for 4h;

[0030] Weigh 5g of roasted waste clay, add 50g of deionized water, and stir for 60min at 30°C and 200r / min; then weigh 10g of titanate KR-9S and slowly add it to the beaker, and continue at 30°C, ultrasonically Treat for 60 minutes; at this time, add 1g of cetyltrimethylammonium bromide, control the temperature at 40°C, and stir at 80r / min for 60min until the mixture is complete; then add 0.05g of dodecyl betaine, 40°C and 50r / min, stirring for 60min until the mixture is c...

Embodiment 2

[0033] Embodiment 2: The method for preparing an oil-based composite oil product drag reducer from the refined oil decolorization waste clay mentioned in the present invention is as follows:

[0034] Weigh 100g of waste clay after decolorization of alkylated oil, put it into a ball mill for grinding for 20 minutes, and sieve through a 400-mesh sieve, keep the waste clay powder that has passed through the screen, dry it at 80°C for 24 hours, and then place it in a muffle In the furnace, under the protection of nitrogen, bake at 400 °C for 1 h.

[0035] Weigh 5g of roasted waste clay, add 25g of deionized water, and stir at 20°C and 100r / min for 30min; then weigh 5g of titanate KR-9S and slowly add it to the beaker, and continue at 20°C, ultrasonically Treat for 30 minutes; at this time, add 0.5g cetyltrimethylammonium bromide, control the temperature at 20°C, and stir at 50r / min for 30min; then add 0.1g dodecyl betaine, 30°C and 50r / min min, stirring for 10 min.

[0036]Throu...

Embodiment 3

[0037] Embodiment 3: The method for preparing an oil-based composite oil drag reducer from the waste clay for decolorizing finished oil mentioned in the present invention is as follows:

[0038] Weigh 100g of waste clay after decolorization of diesel oil, put it into a ball mill for grinding for 40min, sieve through a 400-mesh sieve, keep the waste clay powder that has passed through the sieve, dry it at 90°C for 36h, and then place it in a muffle furnace. Under the protection of nitrogen, calcined at 400°C for 3h.

[0039] Weigh 5g of roasted waste clay, add 40g of deionized water, and stir for 45min at 25°C and 150r / min; then weigh 8g of titanate KR-9S and slowly add it to the beaker, and continue at 25°C, ultrasonically Treat for 50 minutes; at this time, add 0.8g of dodecyltrimethylammonium bromide, control the temperature at 30°C, and stir at 70r / min for 50min; then add 0.08g of dodecyldiethanolamide, 35°C and 50r / min, stirring for 40min.

[0040] According to the dies...

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Abstract

The invention relates to a method for preparing an oil-based composite oil product drag reducer from finished oil decoloring spent bleaching clay.The spent bleaching clay occurring after finishing of an oil product is reutilized, a series of surface treatments are utilized, surface properties of the spent bleaching clay are improved by using a titanate coupling agent, a certain non-polar structure is formed on the surface of the spent bleaching clay through an amphoteric surfactant and a cationic surfactant, and the spent bleaching clay is facilitated entering the microstructure of a polyolefin drag reducer and the composite drag reducer can be better formed.The method has the advantages that by using a unitary structure with nano-grade spent bleaching clay, applicability of the polyolefin drag reduction molecules is enhanced through effective control for a compositing process; in addition, the components used herein may be optimally proportioned to promote synergy of the spent bleaching clay and polyolefin, thus improving the applicability of the drag reducer and reducing application cost of the drag reducer.

Description

technical field [0001] The invention relates to the technical field of drag-reducing and increasing-transportation for pipeline drag-reducing transportation, in particular to a method for preparing an oil-based composite oil drag-reducing agent from waste bleaching clay for product oil decolorization. Background technique [0002] After natural clay is processed through a series of processes, activated clay with large surface area, developed pore structure and good adsorption performance is prepared, which can adsorb some polar components in oil (colloid, asphaltene, sulfur, Nitrogen compounds, etc.), are widely used in the decolorization and refining treatment of oil products in the petrochemical industry. After the activated clay reaches the saturated adsorption capacity, it loses its adsorption capacity and needs to be continuously renewed. Therefore, the petrochemical industry produces a large amount of waste clay every year, which needs to be regenerated or harmlessly t...

Claims

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Application Information

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IPC IPC(8): C08L23/00C08K9/04C08K3/34F17D1/16
CPCC08K3/346C08K9/04C08K2201/011F17D1/16C08L23/00
Inventor 代晓东王余宝刘焕荣陈艳红辛艳萍李洪言
Owner SHENGLI COLLEGE CHINA UNIV OF PETROLEUM
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