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Water-based flash-point-free viscosity reducing demulsifier with ultralow freezing point and preparation method thereof

A freezing point, water-based technology, applied in the direction of chemical dehydration/demulsification, etc., can solve the problems of high dehydration temperature, low safety, low flash point, etc., achieving good safety, low production cost, and simple preparation process. Effect

Active Publication Date: 2014-02-05
东莞优诺电子焊接材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using traditional demulsifiers for dehydration of heavy oil, the dehydration temperature is high, the crude oil needs to be heated to a higher temperature, and the traditional demulsifiers contain aromatic hydrocarbons, such as benzene, toluene and xylene, etc. These raw materials have flash points and flash The point is low, there is a danger of fire during high-speed operation, and the safety is low

Method used

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  • Water-based flash-point-free viscosity reducing demulsifier with ultralow freezing point and preparation method thereof
  • Water-based flash-point-free viscosity reducing demulsifier with ultralow freezing point and preparation method thereof
  • Water-based flash-point-free viscosity reducing demulsifier with ultralow freezing point and preparation method thereof

Examples

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preparation example Construction

[0021] The preparation method of the water-based non-flash point thickening demulsifier of the ultra-low freezing point comprises the following steps:

[0022] 1. Prepare materials: weigh the surfactant, polyalcohol ether, pour point depressant and deionized water according to the stated weight percentage for future use;

[0023] ②. Mixing: Mix the surfactant, polyalcohol ether, pour point depressant and deionized water weighed in step ① in a mixing container;

[0024] ③. Stirring: Start stirring to fully mix the surfactant, polyalcohol ether, pour point depressant and deionized water in the mixing container to obtain the demulsifier.

Embodiment 1

[0026] The water-based non-flash point thickening demulsifier with ultra-low freezing point is composed of the following raw materials in weight percentage:

[0027]

[0028] The preparation method of the water-based non-flash point thickening demulsifier of the ultra-low freezing point comprises the following steps:

[0029] 1. Prepare materials: weigh the alkylphenol and ethylene oxide condensate, laureth-9, ethylene glycol and deionized water according to the percentage of 10:10:20:60, for subsequent use;

[0030] 2. Mixing: Mix the alkylphenol weighed in step 1. with ethylene oxide condensate, laureth-9, ethylene glycol and deionized water in a mixing container;

[0031] ③. Stirring: Start stirring to make it fully mixed in the mixing container, and then obtain the described thickening demulsifier.

Embodiment 2

[0033] The water-based non-flash point thickening demulsifier with ultra-low freezing point is composed of the following raw materials in weight percentage:

[0034]

[0035] The preparation method of the water-based non-flash point thickening demulsifier of the ultra-low freezing point comprises the following steps:

[0036] 1. Prepare materials: weigh the alkylphenol and ethylene oxide condensate, ceteareth, ethanol and deionized water according to the ratio of 15:15:15:55 for subsequent use;

[0037] 2. Mixing: the alkylphenol weighed in step 1. is mixed with ethylene oxide condensate, ceteareth, ethanol and deionized water in a mixing container;

[0038] ③. Stirring: Start stirring to make it fully mixed in the mixing container, and then obtain the described thickening demulsifier.

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Abstract

The invention discloses a water-based flash-point-free viscosity reducing demulsifier with an ultralow freezing point and a preparation method thereof. The demulsifier is prepared by mixing a surfactant, alcohol polyether, a pour point depressant and deionized water, wherein the surfactant is an alkylphenol and ethylene oxide condensate, alcohol polyether is lauryl alcohol polyether-9 or cetostearyl alcohol polyether, and the pour point depressant is ethylene glycol or ethanol. The demulsifier is flash-point-free, has good safety and simple preparation process, is low in preparation cost, is environment-friendly and safe, meets the environmental ROHS (Restriction of Hazardous Substances Directive) standard, does not affect human bodies and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, in particular to an ultra-low freezing point water-based non-flash point thickening demulsifier and a preparation method thereof. Background technique [0002] Crude oil itself is a multi-component mixture consisting of hydrocarbons with different relative molecular masses and structures, and a small amount of non-hydrocarbon compounds. Because the crude oil system contains a large amount of colloid and asphalt, its fluidity is poor and its viscosity is very high, which brings a series of problems to crude oil extraction, pipeline transportation, processing and utilization, etc. Generally, at the temperature of the oil layer, the crude oil whose viscosity exceeds 100mpa.s of degassed crude oil is heavy oil. In the middle and late stages of oilfield exploitation, due to the increase of water content, the crude oil and water together flow from the bottom of the well to the ground an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/04
Inventor 白映月
Owner 东莞优诺电子焊接材料有限公司
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