Unlock instant, AI-driven research and patent intelligence for your innovation.

Active polyacrylate copolymer based pour point depressant for crude oil with high solidifying point and preparation method of pour point depressant

A technology of polyacrylate and crude oil pour point depressant, applied in chemical instruments and methods, drilling composition and other directions, can solve the problems of large difference in performance of high pour point crude oil, different pour point depressant effects, etc.

Inactive Publication Date: 2018-08-24
QINGDAO UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large differences in the composition and performance of high-point point crude oil, various point-point depressants have different depressant effects on high-point point crude oil from different origins, resulting in high-point point crude oil having a strong selectivity for point-point The development of the drug has brought a certain degree of blindness

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active polyacrylate copolymer based pour point depressant for crude oil with high solidifying point and preparation method of pour point depressant
  • Active polyacrylate copolymer based pour point depressant for crude oil with high solidifying point and preparation method of pour point depressant
  • Active polyacrylate copolymer based pour point depressant for crude oil with high solidifying point and preparation method of pour point depressant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 15 grams of octadecyl acrylate and 30 grams of xylene to a four-necked flask equipped with a thermometer, a stirrer and a condenser, and dissolve the octadecyl acrylate below 70°C, followed by adding 0.94 grams of glycidyl methacrylate, Mix 0.65 grams of maleic anhydride and 0.57 grams of vinyl acetate, add 0.34 grams of azobisisobutyronitrile, then feed nitrogen into the reaction system, and open condensed water, raise the temperature to 95 ° C, and keep the temperature for 6 hours. The solution was cooled to room temperature, an appropriate amount of methanol was added, filtered, and the filter cake was vacuum-dried at 50°C to obtain the pour point depressant 1 for high pour point crude oil.

Embodiment 2

[0014] Add 15 grams of octadecyl acrylate and 30 grams of xylene to a four-necked flask equipped with a thermometer, a stirrer and a condenser, and dissolve the octadecyl acrylate below 70°C, followed by adding 1.88 grams of glycidyl methacrylate, 0.57 g of vinyl acetate, mixed evenly, added 0.523 g of dibenzoyl peroxide, then passed nitrogen into the reaction system, and opened condensed water, raised the temperature to 90 ° C, kept the reaction for 6 hours, cooled the reaction solution to room temperature, added Appropriate amount of methanol was filtered, and the filter cake was vacuum-dried at 50°C to obtain the pour point depressant 2 for high pour point crude oil.

Embodiment 3

[0016] Add 15 grams of octadecyl acrylate and 30 grams of xylene to a four-necked flask equipped with a thermometer, a stirrer and a condenser, and dissolve the octadecyl acrylate below 70°C, followed by adding 1.41 grams of glycidyl methacrylate, 0.97 grams of maleic anhydride, mixed evenly, added 0.35 grams of azobisisobutyronitrile, then passed nitrogen into the reaction system, and opened condensed water, raised the temperature to 95 ° C, kept the reaction for 6 hours, cooled the reaction solution to room temperature, added Take an appropriate amount of methanol, filter, and vacuum-dry the filter cake at 50°C to obtain the pour point depressant 3 for high pour point crude oil.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an active polyacrylate copolymer based pour point depressant for crude oil with high solidifying point and a preparation method of the pour point depressant. Molecules of thepour point depressant contain active groups capable of being subjected to chemical reactions with colloidal and bituminous molecules, and precipitation way and precipitation temperature of wax in thecrude oil can be changed by chemically modifying the colloidal and bituminous molecules in the crude oil, so that solidifying point of the crude oil can be reduced, which has great significance in research and development of the pour point depressant.

Description

technical field [0001] The invention relates to a high pour point depressant for crude oil, in particular to a pour point depressant for crude oil capable of reacting with colloid and asphaltenes and a preparation method thereof, belonging to the field of oil field chemical additives. Background technique [0002] Crude oil is a complex hydrocarbon mixture containing multiple components such as wax, colloid, and asphaltenes. Under low temperature conditions, crude oil will lose fluidity due to the deposition of asphaltenes and the crystallization of waxes. Storage and transportation pose enormous difficulties. Adding a small amount of pour point depressant to crude oil to lower the freezing point of crude oil and improve its fluidity is a more economical and effective way to solve the problems of crude oil production, storage and transportation. However, due to the large differences in the composition and performance of high-point point crude oil, various point-point depres...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F220/18C08F220/32C08F222/06C08F218/08C09K8/588C09K8/88
CPCC08F220/18C08F220/1818C09K8/588C09K8/882C08F220/325C08F222/06C08F218/08
Inventor 张晓东孙策方龙刘馨陈照军
Owner QINGDAO UNIV