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Crude oil desalting method and device of electric field-rotational flow combination

A technology of electric desalination and electric desalination tank is applied in the fields of petrochemical industry and environmental protection, which can solve the problems of oil quality deterioration and high transformation cost.

Active Publication Date: 2013-09-11
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the overall renovation cost of the device is too high and it is limited by the deterioration of oil quality

Method used

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  • Crude oil desalting method and device of electric field-rotational flow combination
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  • Crude oil desalting method and device of electric field-rotational flow combination

Examples

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Embodiment 1

[0051] Example 1: Industrial experimental device for side stream swirl desalination with a processing capacity of 7 t / h on Zhenhai Refining & Chemical III regular device

[0052] According to the method of the present invention, the HL / L28-10 cyclone desalter independently developed by East China University of Science and Technology is combined with the original electric desalting device to carry out the crude oil desalting operation unit. Its specific operation process and effects are described as follows:

[0053] 1. Background

[0054] The regular electric desalting part of Zhenhai Refining & Chemical III introduced Baker-Petrolite's advanced desalting technology and key equipment, using two Φ3600×19560 two-stage electric desalting tanks for desalting, and the designed and processed oil is Iranian light oil. It was completed and put into operation until March 2006 The operating condition of the device has been good. In 2007, the unit started to process heavy oils such a...

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Abstract

The invention relates to a crude oil desalting method and device of an electric field-rotational flow combination, and provides a crude oil desalting method of the electric field-rotational flow combination. The method comprises the following steps of: (a) carrying out rotational flow desalting on crude oil after primary electro-desalting so as to separate water containing salt in crude oil after electro-desalting and lower the salt content in the crude oil after electro-desalting; (b) optionally, carrying out secondary electro-desalting on crude oil after rotational flow desalting so as to lower the salt content in the crude oil further. The invention also provides a crude oil desalting device of the electric field-rotation flow combination.

Description

technical field [0001] The invention belongs to the field of petrochemical industry and environmental protection, and relates to a crude oil desalting method combined with electric field and swirling flow. Specifically, the invention relates to adding a swirling flow desalter between two stages of electric desalting tanks for crude oil, or connecting them in series downstream of the electric desalting tanks The cyclone desalter is used to improve the desalting efficiency of crude oil, and is suitable for the desalination and dehydration treatment unit of crude oil in the atmospheric and vacuum distillation process. The invention also relates to a combined electric field-swirl crude oil desalting device. Background technique [0002] Crude oil desalting is the first process of atmospheric and vacuum distillation. The purpose of this process is to remove salt, water and other impurities from crude oil. Inorganic salts contained in crude oil are soluble in water. The presence ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G31/10C10G32/02
Inventor 黄聪汪华林马良范轶沈玲邱阳
Owner EAST CHINA UNIV OF SCI & TECH
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