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A production process of -10# military diesel oil and 5# industrial white oil

An industrial white oil and production process technology, applied in the petroleum industry, hydrocarbon oil treatment products, multi-stage series refining process treatment, etc. Industrial white oil and other problems, to achieve the effect of reducing gum

Active Publication Date: 2022-07-26
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the hydrocracking unit in the prior art does not have a side line for the special production of 5# industrial white oil, and can only use the diesel side line stripper T3 to produce
In addition, the diesel produced by the existing diesel side stripper T3 has high gum content and cannot be used as -10# military diesel

Method used

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  • A production process of -10# military diesel oil and 5# industrial white oil
  • A production process of -10# military diesel oil and 5# industrial white oil
  • A production process of -10# military diesel oil and 5# industrial white oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 2 As shown in , a production process of No. 10 military diesel and high-quality industrial white oil, including the following steps:

[0030] (1) after the pretreatment of the generated oil of hydrocracking, entering the number of trays is to carry out fractionation in the fractionating tower T1 of 54 layers, and at the 17th layer tray of the fractionating tower T1, a diesel oil extraction outlet is opened, and the diesel extraction outlet is There is a diesel extraction pipeline, and the diesel extraction pipeline is connected with a diesel side stripping tower T3. The diesel extracted from the diesel extraction outlet flows into the diesel side stripping tower T3 through the diesel extraction pipeline. After being stripped by the diesel side stripping tower T3, the diesel side stripping tower T3 The oil and gas at the top of the stripping tower T3 is returned to the 15th layer tray of the fractionation tower T1, and the product at the bottom of the diesel...

Embodiment 2

[0062] The difference from Example 1 is that the number of layers of the fractionating tower T1 is 60 layers, and the diesel extraction outlet is set at the 16th layer tray of the fractionating tower T1, and after the diesel side stripping tower T3 is stripped, the diesel side stripping tower is The oil and gas at the top of the T3 tower is returned to the 14th layer tray of the fractionation tower T1.

[0063] A white oil extraction outlet is added at the 34th layer tray of the fractionation tower T1. After being stripped by the white oil side stripper T4, the top gas of the white oil side stripper T4 is returned to the 32nd tray of the fractionation tower T1.

Embodiment 3

[0065] Different from Example 1, the number of trays of the diesel side stripper T3 is 18 layers, and the number of trays of the side stripper of white oil is 18 layers.

[0066] The superheated steam used in the diesel side stripping tower T3 and the white oil side stripping tower T4 is superheated low-pressure steam with a temperature of 380° C. and a pressure of 0.45 MPa.

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Abstract

The invention discloses a production process of No.-10 military diesel oil and 5# industrial white oil, comprising the following steps: (1) moving the extraction outlet of the diesel side stripping tower T3 upward, after being processed by the diesel side stripping tower T3, After heat exchange and cooling, No. 10 military diesel oil is obtained; (2) the side extraction outlet and return port of industrial white oil are added to the product fractionation tower T1, and the industrial white oil extracted from the fractionation tower T1 flows into the newly added industrial white oil. Side stripping tower T4, after stripping by the white oil side stripping tower T4, the top gas of the white oil side stripping tower T4 returns to the fractionation tower T1, and the product at the bottom of the white oil side stripping tower T4 is drawn out and enters the dehydration tank V1 Vacuum dehydration, and then pressurize, heat exchange and cooling to obtain 5# industrial white oil. This process can simultaneously produce No. 10 military diesel oil and 5# industrial white oil, and the obtained No. 10 military diesel oil and high-quality 5# industrial white oil have high initial boiling point, high yield and excellent quality.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and particularly relates to a production process of No. 10 military diesel oil and No. 5 industrial white oil. Background technique [0002] like figure 1 As shown in the existing process, the process of preparing industrial white oil after the generated oil after the hydrocracking reaction of the raw material is cut by the device fractionation system, the raw material usually comes from the vacuum wax oil from the atmospheric and vacuum device, which is processed by the hydrocracking device. The generated oil after the system treatment, the process is to react the generated oil from the reactor of the hydrocracking unit and cut it through the fractionation tower T1, the top of T1 is the heavy naphtha, T2 is the jet fuel from the jet fuel side stripper, and T3 is diesel oil. The side stripper goes abroad for five diesel, and the bottom of T1 is tail oil. Since the diesel side str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/02
CPCC10G53/02C10G2400/04C10G2400/14
Inventor 龙有许楚荣熊伟庭杨庆伟文周祺李刚李嘉郁黎玉盛骆昊刘付福千
Owner CHINA PETROLEUM & CHEM CORP
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