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Crude oil desalting composition and method of use thereof

A composition and desalination technology, which is applied in the fields of hydrocarbon oil dehydration/demulsification, petroleum industry, refined hydrocarbon oil, etc., can solve the problems affecting the normal operation of the electric desalination process, cannot effectively achieve oil-water separation, and the electric current of the desalination process is increased. , to achieve the effect of significant demulsification and desalination, strengthening the effect of electric field, and destroying stability

Active Publication Date: 2010-12-01
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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  • Claims
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Problems solved by technology

It has been found that only using demulsifiers in the electric desalination process cannot effectively achieve oil-water separation.
Especially for acid-containing low-quality crude oil, it is difficult to make the quality of processed products meet the requirements by simply using demulsifiers for desalination and dehydration
At the same time, when the demulsifier is only used in the desalination process, if the demulsification effect does not meet the requirements, it will also cause the current to increase and the voltage to decrease in the electrical desalination process. Normal operation of the desalination process

Method used

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  • Crude oil desalting composition and method of use thereof
  • Crude oil desalting composition and method of use thereof
  • Crude oil desalting composition and method of use thereof

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Abstract

The invention provides a crude oil desalinization compound, comprising the following components by weight percent: 0 to 95 percent of emulsifying agent, 1 to 90 percent of one or more than one carboxylic acid plymer, or one or more than one organic phosphine compound or the mixture of the organic phosphine compound and 4 to 94 percent of solvent. The invention also provides a method of desalinating the crude oil, particular the acid containing crude oil, by using the desalinization compound. The invention is suitable for the desalinization of the crude oil, particular the acid containing crude oil and the inferior high acid number and high salt crude oil.

Description

A kind of crude oil desalting composition and using method thereof technical field The invention relates to a crude oil desalting composition, a preparation method thereof, and a method for desalting crude oil, especially acid-containing crude oil, using the desalting composition. Background technique The presence of salt in crude oil will cause corrosion to equipment including atmospheric towers, which will have a serious impact on subsequent processing. Therefore, these salts must be removed during the electro-desalination stage. Electric desalting process is a common method for removing salt from crude oil. The method uses electric, thermal and chemical means to combine demulsification (that is, by adding a suitable demulsifier, the water / oil emulsion formed by mixing oil-water is effectively demulsified under certain temperature and electric field conditions), to achieve oil demulsification. , Water separation, so as to achieve the purpose of removing salt and water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G33/00C10G29/20
Inventor 徐振洪王振宇于丽谭丽罗咏涛李本高
Owner CHINA PETROLEUM & CHEM CORP
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