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Multi-branch structure demulsifier of aromatic ring core

A multi-branched, demulsifier technology, applied in the direction of chemical dehydration/demulsification, etc., can solve the problems of reducing the utilization rate of pipelines and equipment, corrosion damage of equipment pipelines, increasing viscosity, etc., and achieve good hydrophilic and hydrophobic performance and interface activity. , good interface destruction ability, showing the effect of technological progress

Active Publication Date: 2013-12-18
新疆天普石油天然气工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emulsion formed by the water content of crude oil will poison the downstream crude oil refining catalyst, increase the refining cost and cause corrosion damage to the equipment and pipeline; Increased volume, reduced utilization of pipelines and equipment

Method used

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  • Multi-branch structure demulsifier of aromatic ring core
  • Multi-branch structure demulsifier of aromatic ring core
  • Multi-branch structure demulsifier of aromatic ring core

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Experimental program
Comparison scheme
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Embodiment Construction

[0027] The present invention is further clarified in conjunction with embodiment.

[0028] 1. Raw material synthesis:

[0029] (1) Phenolic amine resin;

[0030] (2) Multi-branched polyester intermediates with aromatic ring core;

[0031] (3) Aromatic ring core Dendrimer multi-branch structure initiator;

[0032] (4) Polyether demulsifier with aromatic ring core Dendrimer multi-branched structure;

[0033] The chemical formulas of the reaction step (1) phenolamine resin in the present invention are shown in (I), (II) and (III).

[0034]

[0035] Formula (I) is the structural formula of phenolamine resin synthesized from phenol, ethylenediamine and formaldehyde.

[0036]

[0037] Formula (II) is the structural formula of phenolamine resin synthesized from alkylphenol, ethylenediamine and formaldehyde. In the formula, R is a propyl group, a butyl group, a pentyl group, a heptyl group, an octyl group, a nonyl group, a decyl group or a 11-18 long-chain alkyl group.

[...

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Abstract

The invention discloses a multi-branch structure demulsifier of an aromatic ring core. The demulsifier is prepared by the following processes of alternatively carrying out Michael addition and amidation condensation reaction in a methanol solvent by using two materials of methyl acrylate and a polyamine substance on the basis of the structure of catecholamine resin prepared from aromatic ring phenol, ethanediamine and formaldehyde in a condensation manner; grafting a repetition structure unit of polyamide-polyamidoaminedendrimer (Dendrimer) on the catecholamine resin, and synthesizing a Dendrimer macromolecule of a super-multi-branch aromatic ring core as an initiator; grafting a polyether chain segment by oxyalkylation reaction of a functional group of the Dendrimer macromolecule initiator; regulating and controlling the structure and the ratio of the polyether chain segment, so as to prepare a series of polyether demulsifiers with novel structures.

Description

technical field [0001] The invention relates to a high-efficiency demulsifier, especially a novel dendrimer multi-branch structure demulsifier with an aromatic ring core, which is suitable for demulsification and dehydration in crude oil heavy oil exploitation, gathering and transportation and refining. Background technique [0002] Petroleum is an important non-renewable energy source, which plays an important role in the national economy, national defense and people's daily life. Crude oil is a multi-component mixture. During the production process, crude oil and water coexist in the formation and flow out of the ground through the tubing of the pumping unit. The natural emulsifier components (colloid, asphaltene, naphthenic acid) in the crude oil , fatty acids, salts, crystalline paraffin, etc.), added chemicals, and oil extraction operations such as pumping unit extraction, shear mixing, etc., crude oil can easily form a stable emulsion with water. At present, about 80%...

Claims

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Application Information

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IPC IPC(8): C08G65/28C10G33/04
Inventor 周继柱付增华时武龙冷传志张志海曾凡清胡建岭古群峰岳强杨新勇
Owner 新疆天普石油天然气工程技术有限公司
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