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Diesel fuel fraction hydrotreating method

A technology for hydrotreating and diesel oil, which is applied in the fields of hydrotreating process, hydrocarbon oil treatment, petroleum industry, etc., and can solve problems such as reducing the yield of diesel oil

Active Publication Date: 2009-05-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process inevitably reduces the diesel yield

Method used

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  • Diesel fuel fraction hydrotreating method
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this example, the first reaction zone adopts the FDS-4 hydrorefining catalyst developed by Fushun Petrochemical Research Institute. The active metal component of the catalyst is cobalt-molybdenum. The second reaction zone adopts FH-98 developed by Fushun Petrochemical Research Institute. Hydrofining catalyst, the active metal component of the catalyst is nickel-molybdenum-tungsten. The Kuwaiti mixed oil is divided into 300°C heavy fraction, 300°C heavy fraction is sent to the second reaction zone. See Table 3 for other process conditions, and see Table 4 for the properties of the final refined oil product. The main properties of the catalysts are listed in Table 5.

Embodiment 2

[0030] The Kuwaiti mixed oil is divided into 320°C heavy fraction, and the 320°C heavy fraction is sent to the second reaction zone, and other conditions are the same as in Example 1. See Table 3 for other process conditions, and see Table 4 for the properties of the final refined oil product.

Embodiment 3

[0032] In this example, both the first reaction zone and the second reaction zone used the FDS-4 hydrorefining catalyst developed by Fushun Petrochemical Research Institute. The process conditions are shown in Table 3, and the properties of the final refined oil product are shown in Table 4. All the other conditions are the same as example 1.

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Abstract

The invention discloses the diesel oil distillate hydrotreating method. The method comprises the following steps: dividing the raw oil into light cut and heavy cut, entering the light cut into the first reaction area to touch the hydrofining catalyst, entering the heavy cut into the second reaction area to touch the hydrofining catalyst, mixing the liquid product of the two reaction areas to prepare the refined distillate oil. The first reaction area uses the hydrogenation catalyst which possesses high desulfurizing activity, and the second reaction area uses hydrogenation catalyst which possesses the high hydrogenation activity. Comparaed with the general diesel oil refined process, the said method can realize the deep hydrogenation and desulfuration. The method possesses the characteristics of simple process flow and easy operation. The said method can be used for various hydrotreating processes containing the diesel oil fraction raw oil.

Description

technical field [0001] The invention relates to a diesel oil hydrogenation treatment method, in particular to a diesel oil fraction deep hydrogenation desulfurization treatment method. Background technique [0002] With the increasingly stringent environmental regulations, the production of low-sulfur diesel, especially ultra-low-sulfur diesel has become an urgent problem for refiners. On the other hand, with the shrinking of the heavy oil market, the degree of deep conversion of heavy residue oil continues to increase, resulting in a decline in the quality of secondary processed products such as catalytic diesel (LCO), and it is difficult to find sufficient low-sulfur diesel components to match of reconciliation. Therefore, people are expecting to develop a new process that can reduce the sulfur content of diesel oil. [0003] At present, the common method of processing diesel oil is hydrofining. For the hydrorefining process aimed at producing low-sulfur diesel, especia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/04
Inventor 彭绍忠王刚姜虹
Owner CHINA PETROLEUM & CHEM CORP
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