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A kind of tetrapolymer type oil drag reducer and its synthesis method

A quaternary copolymer and synthesis method technology, applied in the direction of gas/liquid distribution and storage, mechanical equipment, pipeline system, etc., can solve the problems of harsh polymerization conditions, environmental damage, damage to equipment, etc., to optimize the product system, injection Low dose, improve the effect of safe delivery

Active Publication Date: 2018-04-03
SHENGLI COLLEGE CHINA UNIV OF PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the high temperature and high pressure in the synthesis and preparation of polyalphaolefins, and the severe requirements for the polymerization conditions of alpha-olefins, detonation often occurs due to improper control of the conditions. In the lightest cases, the experiment fails to damage the equipment, and in severe cases, it may cause serious environmental damage or personnel damage. At the same time, due to the high exothermic characteristics of polymerization, a large amount of liquid nitrogen is required for cooling and post-treatment in the actual production process, and the cost is relatively high. Therefore, how to find an alternative new type of high polymer oil drag reducer has become a common scientific work. important research contents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: A tetrapolymer type oil drag reducer mentioned in the present invention is made of the following components in mass ratio: acrylamide: acrylic acid: dimethyl diallyl ammonium chloride: di Allylamine=(15~18):(22~25):(7~12):(3~6), at the same time acrylamide, acrylic acid, dimethyl diallyl ammonium chloride, diallyl The ratio of the total mass of amine monomers to the mass of deionized water is 1: (10-18).

[0020] The synthetic method of tetrapolymer type oil drag reducer mentioned in the present invention, its preparation method comprises as follows:

[0021] (1) Weigh 1000g of deionized water in a flask, place it in a water bath with a constant temperature of 40°C, seal the flask and pass nitrogen gas to remove oxygen for 20min.

[0022] (2) Weigh 1g of cetyltrimethylquaternary ammonium bromide, 1g of octadecyldimethylbenzylquaternary ammonium chloride, and 10g of cetyl alcohol, add them into deionized water, and stir for 5 minutes.

[0023] (3) Quickly...

Embodiment 2

[0029] Embodiment 2: a kind of tetrapolymer type oil drag reducer mentioned in the present invention and synthetic method, its preparation method is as follows:

[0030] (1) Weigh 1000g of deionized water in a flask, place it in a water bath with a constant temperature of 40°C, seal the flask and pass nitrogen gas to remove oxygen for 20min.

[0031] (2) Weigh 1g cetyltrimethylquaternary ammonium bromide, 1g octadecyldimethylbenzylquaternary ammonium chloride, 4g octylphenol polyoxyethylene ether and 5g nonylphenol polyoxyethylene ether , added to deionized water, and stirred for 5 min.

[0032] (3) Quickly add 25g of AM, 50g of AA, 20g of DMDAAC, and 10g of Diallylamine into the flask, and at the same time The ratio of mass to deionized water is 1: (10-18), and it is added to the flask under nitrogen atmosphere;

[0033] (4) Add 1g of benzophenone and 1g of 2,4-dihydroxybenzophenone, and turn on the ultraviolet lamp to irradiate the flask.

[0034] (5) Adjust the temperatu...

Embodiment 3

[0038] Embodiment 3, a kind of tetrapolymer type oil drag reducer mentioned in the present invention and its synthesis method, its preparation method is as follows:

[0039] (1) Weigh 940g of deionized water in a flask, place it in a water bath with a constant temperature of 40°C, seal the flask and pass nitrogen gas to remove oxygen for 20min.

[0040] (2) Weigh 1g of cetyltrimethylquaternary ammonium bromide, 1g of octadecyldimethylbenzylquaternary ammonium chloride, 3g of lauryl alcohol and 3g of lauric acid, add them into deionized water, and stir for 5 minutes.

[0041](3) Quickly add 30g of AM, 44g of AA, 14g of DMDAAC, and 6g of Diallylamine into the flask, and at the same time The ratio of mass to deionized water is 1: (10-18), and it is added to the flask under nitrogen atmosphere;

[0042] (4) Add 0.2g of benzophenone and 0.27g of 2,4-dihydroxybenzophenone, and turn on the ultraviolet lamp to irradiate the flask.

[0043] (5) Adjust the temperature of the water bat...

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PUM

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Abstract

The invention relates to a quadripolymer type oil product drag reducer and a synthesizing method.According to the technical scheme, the quadripolymer type oil product drag reducer is prepared from, by mass, 15-18 parts of acrylamide, 22-25 parts of acrylic acid, 7-12 parts of dimethyl diallyl ammonium chloride and 3-6 parts of diallylamine, and the ratio of the total monomer mass of acrylamide, acrylic acid, dimethyl diallyl ammonium chloride and diallylamine to the mass of deionized water is 1:(10-18).The synthesizing method has the advantages of being simple in production technology and low in production cost, and the prepared drag reducer has the advantages of being low in injection dosage, excellent in drag reduction effect and the like; an existing oil product drag reducer product system can be optimized and improved, the oil product pipeline safe throughout is increased, the oil product pipeline operating cost is reduced, and the oil product pipeline operating risks are reduced.

Description

technical field [0001] The invention relates to the technical direction of synthesis and preparation of a new oil drag reducer in the field of pipeline chemical additives, in particular to a tetrapolymer type oil drag reducer and a synthesis method. Background technique [0002] At present, the commonly used oil drag reducer is a high-molecular α-olefin polymer. Its mechanism of action is that after a small amount of injection into the oil pipeline, the high-molecular α-olefin polymer forms a long-chain structure along the direction of the pipe flow, and the distribution Between the interface between the turbulent flow area and the steady flow area, the elastic deformation of the molecular chain is used to prevent the turbulence of the flow state, reduce the frictional energy loss in the oil flow, reduce the flow resistance, and achieve the purpose of increasing the increase rate and drag reduction rate. Poly α-olefin oil drag reducer can increase the output without adding a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/06C08F220/56C08F226/04C08F226/02F17D1/17
CPCC08F220/06F17D1/17C08F220/56C08F226/04C08F226/02
Inventor 代晓东杨光辉辛艳萍刘焕荣陈艳红李洪言
Owner SHENGLI COLLEGE CHINA UNIV OF PETROLEUM