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Diesel oil dewatering process and apparatus

A diesel oil and water content technology, which is applied in the direction of hydrocarbon oil dehydration, etc., can solve the problems that the separation efficiency cannot meet the high precision and high energy consumption

Inactive Publication Date: 2009-04-01
SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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Problems solved by technology

This device is only suitable for the case where the content of the substance with a lower evaporation temperature in the mixture is small, otherwise the energy consumption will be too high, and the separation efficiency of this device is difficult to meet the requirements of high precision. In the case of a small content of the second phase Under, it is not suitable to use the device

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  • Diesel oil dewatering process and apparatus
  • Diesel oil dewatering process and apparatus
  • Diesel oil dewatering process and apparatus

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Embodiment Construction

[0023] After extensive and in-depth research, the inventors of the present invention have found that by applying the cyclone separation process to the dehydration of diesel oil in the hydrocracking process, higher separation efficiency can be obtained, and compared with other separation processes used in the prior art Compared with the cyclone separation process, the adaptability is strong, the floor space is small, and it is easy to maintain. The present invention has been accomplished based on the above findings.

[0024] In the presence of hydrogen, catalyst, and appropriate temperature and pressure conditions, the carbon-carbon bonds in the raw oil molecules are broken and the process of generating smaller molecules is called hydrocracking. The main purpose of the hydrocracking process is to convert heavy distillate oil into light oil. Hydrocracking technology is the core technology of today's oil refining industry. Under the action of catalyst and hydrogen, the raw oil u...

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Abstract

The invention provides a diesel dehydration method, including the following steps: cyclone separation is carried out to the diesel obtained by a hydrocracking process, so as to obtain purified diesel with the water content being reduced to below 40mg / kg. The invention further provides a diesel dehydration unit. The method and the device have high separation efficiency, high adaptability, small occupied area and easy maintenance.

Description

technical field [0001] The invention belongs to the technical field of petroleum processing, and relates to a method for dehydrating diesel oil, in particular to a method for removing a small amount of water in diesel oil by using cyclone separation, which is suitable for oil products in various processes including hydrocracking processes dehydration process. The invention also relates to a diesel oil dehydration device. Background technique [0002] The main source of diesel is obtained through crude oil processing. According to different processing methods, it can be divided into atmospheric diesel, catalytic diesel and hydrogenated diesel. After nearly a century of exploitation, the output of light crude oil has become less and less, but the demand structure for petroleum products has gradually changed to light. Changes in the demand structure of oil products, especially the growth in demand for diesel and jet fuel, have promoted the development of hydrocracking technol...

Claims

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Application Information

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IPC IPC(8): C10G7/04
Inventor 马吉张艳红汪华林杨强白志山
Owner SHANGHAI HUACHANG ENVIRONMENT PROTECTION
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