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Microbial environment-friendly super-functional demulsifier as well as preparation method and application thereof

A demulsifier and microbial technology, applied in the field of microbial environmental protection super-functional demulsifier, can solve the problems of unsatisfactory dehydration, complex demulsification and dehydration, influence, etc., and achieve the effect of good chemical and biological characteristics and good dissolution characteristics.

Pending Publication Date: 2022-05-06
陕西信业科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Demulsifiers are indispensable chemical additives for the dehydration of crude oil in all oil exploration in my country. At present, polyether polyols are mainly used in China. Most of these demulsifiers contain active hydrogen compounds as initiators and use anionic surface active agents. The water content of crude oil produced in many oil fields is increasing year by year. A large amount of polymer chemical raw materials are used for sewage reinjection and oil well fracturing and acidification. Emulsification, demulsification and dehydration are more complicated and difficult. The dehydration of ordinary polyether demulsifiers is not ideal. It often occurs that the dehydration emulsification layer rises and the demulsification dehydration fails to meet the standard requirements. Process and refinery production causing high impact and economic loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A microbial environment-friendly super-functional demulsifier, made of the following raw materials in parts by weight: 6.5 parts of microbial metabolites, 32.5 parts of polyether polyol synthetic monomers, 11 parts of sodium alkylbenzenesulfonate, 1.4 parts of monoethanolamine; The ether polyol synthetic monomer is polyethylene polyamine polyoxyethylene polychloride polyether.

[0025] The preparation method of the above-mentioned microbial environment-friendly super-functional demulsifier comprises the following steps:

[0026] (1) Add microbial metabolites to the reactor first, then raise the temperature to 40°C, and slowly add polyether polyol synthetic monomers under the condition of rapid stirring of microbial metabolites, and keep warm for 40 minutes to obtain Group A Points, to be used;

[0027] (2) Add alkylbenzenesulfonic acid to another reaction kettle, then raise the temperature to 40°C, slowly add monoethanolamine, and stir slowly for 40 minutes until the h...

Embodiment 2

[0030] A microbial environment-friendly super-functional demulsifier is prepared from the following raw materials in parts by weight: 6 parts of microbial metabolites, 30 parts of polyether polyol synthetic monomers, 10 parts of sodium alkylbenzenesulfonate, and 1.2 parts of monoethanolamine.

[0031] The preparation method of the above-mentioned microbial environment-friendly super-functional demulsifier comprises the following steps:

[0032] (1) Add microbial metabolites to the reactor first, then raise the temperature to 40°C, and slowly add polyether polyol synthetic monomers under the condition of rapid stirring of microbial metabolites, and keep warm for 40 minutes to obtain Group A Points, to be used;

[0033] (2) Add alkylbenzenesulfonic acid to another reaction kettle, then raise the temperature to 40°C, slowly add monoethanolamine, and stir slowly for 40 minutes until the homogeneous phase has no agglomeration and is a transparent viscous liquid with a pH equal to ...

Embodiment 3

[0036] A microbial environment-friendly super-functional demulsifier is prepared from the following raw materials in parts by weight: 7 parts of microbial metabolites, 35 parts of polyether polyol synthetic monomers, 12 parts of sodium alkylbenzene sulfonate, and 1.5 parts of monoethanolamine.

[0037] The preparation method of the above-mentioned microbial environment-friendly super-functional demulsifier comprises the following steps:

[0038] (1) Add microbial metabolites to the reactor first, then raise the temperature to 40°C, and slowly add polyether polyol synthetic monomers under the condition of rapid stirring of microbial metabolites, and keep warm for 40 minutes to obtain Group A Points, to be used;

[0039] (2) Add alkylbenzenesulfonic acid to another reaction kettle, then raise the temperature to 40°C, slowly add monoethanolamine, and stir slowly for 40 minutes until the homogeneous phase has no agglomeration and is a transparent viscous liquid with a pH equal to ...

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Abstract

The invention belongs to the technical field of demulsifiers, and discloses a preparation method of a microbial environment-friendly super-functional demulsifier, which comprises the following steps: (1) adding a microbial metabolite into a reaction kettle, heating to 40 DEG C, slowly adding a polyether polyol composition monomer under the condition of quickly stirring the microbial metabolite, and carrying out heat preservation reaction for 40 minutes to obtain a component A; (2) adding alkyl benzene sulfonic acid into another reaction kettle, heating to 40 DEG C, slowly adding monoethanolamine, slowly stirring for 40 minutes until a homogeneous phase is free of caking and transparent viscous liquid and the pH value is equal to 5-7, stopping stirring, cooling to 40 DEG C, and discharging to obtain a component B; and (3) slowly adding the component B into the component A, stirring for 20 minutes, adding a proper amount of deionized water to obtain light yellow homogeneous sticky liquid, and packaging after the liquid is tested to be qualified. The demulsifier prepared by the invention has the advantages of low temperature requirement, small dosage, high dehydration rate, high dehydration speed, environmental friendliness and high self-degradation speed.

Description

technical field [0001] The invention relates to the technical field of demulsifiers, in particular to a microbial environment-friendly super-functional demulsifier. Background technique [0002] Demulsifiers are indispensable chemical additives for the dehydration of crude oil in all oil exploration in my country. At present, polyether polyols are mainly used in China. Most of these demulsifiers contain active hydrogen compounds as initiators and use anionic surface active agents. The water content of crude oil produced in many oil fields is increasing year by year. A large number of polymer chemical raw materials are used for sewage reinjection and oil well fracturing and acidification. Emulsification, demulsification and dehydration are more complicated and difficult. The dehydration of ordinary polyether demulsifiers is not ideal. It often occurs that the dehydration emulsification layer rises and causes demulsification and dehydration to fail to meet the standard requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/04
CPCC10G33/04
Inventor 郭相美
Owner 陕西信业科技开发有限公司
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