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Composite oil-soluble demulsifier product and its production method

A demulsifier, oil-soluble technology, applied in the field of compound oil-soluble demulsifier products

Active Publication Date: 2006-07-26
长江三星能源科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects of the existing demulsifier products and their production methods, and provide a compound type demulsifier that uses mixed solvent components as the dispersion medium and is compounded with more than one functional demulsifier. Oil-soluble demulsifier product and production method thereof

Method used

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  • Composite oil-soluble demulsifier product and its production method
  • Composite oil-soluble demulsifier product and its production method
  • Composite oil-soluble demulsifier product and its production method

Examples

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Embodiment 1

[0046] Embodiment 1, composite oil-soluble demulsifier and production method thereof

[0047] (1) Raw materials

[0048] (1) The mass percentage of mixed solvent is 55%, wherein xylene 30%, methyl alcohol 10%, isopropanol 10%, dimethyl carbonate 5%;

[0049] Specification Quality Technical Requirements

[0050] Xylene industrial grade purity 99.5%, manufactured by Shanghai Qidi Chemical Co., Ltd.;

[0051] Methanol High-quality product with a purity of 99%, manufactured by Shanghai Qidi Chemical Co., Ltd.;

[0052] Isopropanol purity 99.5%, manufactured by Shanghai Qidi Chemical Co., Ltd.;

[0053] Dimethyl carbonate with a purity of 99.5%, manufactured by Shanghai Qidi Chemical Co., Ltd.

[0054] (2) The mass percentage of functional demulsifier is 45%, including 15% of BPR27141, 15% of BPR27638, 5% of BP2070 (dry agent), 9.5% of TA1031 (dry agent), and 0.5% of alkylbenzenesulfonic acid.

[0055] Specification Quality Technical Requirements

[0056] The main component o...

Embodiment 2

[0074] Embodiment 2, composite oil-soluble demulsifier and production method thereof

[0075] (1) Raw materials

[0076] (1) The mixed solvent mass percentage is 45%, wherein xylene 15%, mineral spirits 30%;

[0077] Specification Quality Technical Requirements

[0078] Xylene industrial grade purity 99.5%, manufactured by Shanghai Qidi Chemical Co., Ltd.;

[0079] Mineral spirit 200 # , Industrial grade Jinling Petrochemical Company.

[0080] (2) The mass percentage of the functional demulsifier is 55%, including 30% of AR36 (dry agent), 4.5% of BP204024.5% (dry agent), and 0.5% of alkylbenzenesulfonic acid.

[0081] Specification Quality Technical Requirements

[0082] The main component of AR36 is alkylphenolic resin polyoxyethylene polyoxypropylene ether, with an average molecular weight of 6000 and a solid content of more than 99%, manufactured by Jiangsu Zhenjiang Dongchang Petrochemical Company;

[0083] The main component of BP2040 is polyoxypropylene polyoxyethy...

Embodiment 3

[0098] Embodiment 3, composite oil-soluble demulsifier and production method thereof

[0099] (1) Raw materials

[0100] (1) The mixed solvent mass percentage is 30%, wherein xylene 25%, isopropanol 5%;

[0101] Specification Quality Technical Requirements

[0102] Xylene industrial grade purity 99.5%, manufactured by Shanghai Qidi Chemical Co., Ltd.;

[0103] Isopropanol, with a purity of 99.5%, is manufactured by Shanghai Qidi Chemical Co., Ltd.

[0104] (2) The mass percentage of the functional demulsifier is 70%, including 64.5% of AR36 (dry agent), 5% of BP2040 (dry agent), and 0.5% of dodecylbenzenesulfonic acid.

[0105]Specification Quality Technical Requirements

[0106] The main component of AR36 is alkyl phenolic resin polyoxyethylene polyoxypropylene ether, with an average molecular weight of 6000 and a solid content of more than 90%, manufactured by Jiangsu Zhenjiang Dongchang Petrochemical Company;

[0107] The main component of BP2040 is polyoxypropylene po...

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Abstract

This invention provides a kind of composite oil-soluble demulsifier and its preparing method. The composite oil-soluble demulsifier is composed by mixed solvent and functional demulsifier. The mixed solvent is made of one or several kinds of organic solvents in dimethylbenzene, methanol, isopropanol, solvent oil, dimethyl carbonate, while the functional demulsifier is made of non-ionic surfactant. The mass percent of the mixed solvent is 30-70 while that of the functional demulsifier is 70-30. The composite process is proceeded in agitated still which has heat-insulating cover, and controlled conditions are as follows: composite mixing temperature 20-80 deg C; agitating speed 30-150r / min; agitating time 20-60min plugging temperature30-40deg C.

Description

technical field [0001] The invention relates to the dehydration or demulsification of hydrocarbon oil, in particular to a compound oil-soluble demulsifier product used in the demulsification dehydration and desalination process of crude oil emulsion in oil fields and refineries and its production method. Background technique [0002] Chinese patents CN1600835A, CN1618835A, CN1544117, CN1631483A, CN1485410A, etc. have introduced a large number of molecular structures of demulsifiers and synthesis and preparation methods of demulsifiers with different structures; there are also many invention patents related to demulsifier types. However, these patents have overemphasized the role of different molecular functional structures in the demulsification process of crude oil emulsions. Due to the diversity of crude oil varieties and types, the complexity of crude oil emulsions determines the strong pertinence of demulsifiers in the application process. , lead...

Claims

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Application Information

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IPC IPC(8): C10G33/00
Inventor 刘建春王龙祥任旭
Owner 长江三星能源科技股份有限公司
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