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Improved process of diesel oil hydrogenation modification

A technology for hydrotreating and upgrading diesel oil, which is applied in the petroleum industry, refining hydrocarbon oil, etc., can solve the problems of low yield of diesel oil, and achieve the effects of reducing production volume, reducing energy consumption and improving yield

Inactive Publication Date: 2006-03-15
白跃华
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Problems solved by technology

[0005] In order to solve the problem of low yield of diesel oil in the above-mentioned prior art, the present invention proposes an improved process for hydrogenation and upgrading of diesel oil on the basis of the prior art

Method used

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  • Improved process of diesel oil hydrogenation modification
  • Improved process of diesel oil hydrogenation modification

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Embodiment 1

[0023] 93.2m of top loading in the first reactor 3 The grade is DN-200 hydrorefining catalyst, the lower part is filled with 68.2m 3 The grade is SDD-800 modified catalyst. The second reactor is filled with 127m 3 The grade is DN-200 hydrorefining catalyst. Enter the top of the first reactor with 118T / h diesel raw material (distillation range is 241-381°C), the reaction temperature of the first reactor is 327°C, and the pressure is 8MPa. The material coming out from the first reactor enters the second reactor, and the top of the second reactor enters 96T / h diesel feedstock (distillation range is 151-301 ℃) simultaneously, and the reaction temperature of the second reactor is 310°C, pressure 8MPa. The diesel yield was 96.11%.

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Abstract

An improved process of diesel hydrogenation is carried out by discriminating different diesel raw materials, putting them into the first and the second reactors separately, putting the modified catalyst in the second reactor into the first reactor and filling hydrogenation refined catalyst in the second reactor. It can improve diesel yield.

Description

technical field [0001] The invention relates to a process for hydrogenation and upgrading of diesel oil, in particular, the invention relates to an improved process for hydrogenation and upgrading of diesel oil according to the degree of difficulty of hydrogenation of diesel raw material and the condition of upgrading. Background technique [0002] Gas oil needs to go through catalytic hydrogenation reaction to remove sulfur-containing compounds, nitrogen-containing compounds and hydrogenate the olefins in it. Molecular compound that increases the cetane number of diesel. [0003] Existing technologies such as figure 1 In the process shown, two hydrogenation reactors are used. The first reactor 2 is filled with a hydrofinishing catalyst. Hydrogen and raw diesel enter from the top of the reactor 2 and pass through the catalyst bed 1 for hydrofinishing. The sulfur-containing compounds, nitrogen-containing compounds and olefins in it are hydrogenated and saturated, and then a...

Claims

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Application Information

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IPC IPC(8): C10G45/60
Inventor 白跃华齐建勋何卫国苑朝霞
Owner 白跃华
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