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Distillate hydrogenation catalyst and its preparation method

A hydrogenation treatment and catalyst technology, applied in the petroleum industry, refining hydrocarbon oil, etc., can solve problems such as unsatisfactory effects, and achieve the effect of improving the saturation activity of aromatic hydrocarbons

Active Publication Date: 2006-05-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the catalyst carrier uses unmodified alumina, its physical and chemical properties determine that its application is limited, especially for the saturation of aromatic hydrocarbons.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The catalyst E-1 prepared according to the method provided by the present invention.

[0038] The preparation of the support and the catalyst was the same as that of Comparative Example 2. The difference was that after the support was impregnated with active components, it was dried at 110°C for 10 hours without high-temperature calcination. The obtained catalyst was numbered C-3, and its composition and evaluation results See Table 3.

Embodiment 2～5

[0040] The catalysts E-2 to E-5 prepared according to the method provided by the present invention.

[0041] Compared with Example 1, the difference is in addition to the type and content of active components, modified Y-type zeolite (unit cell parameter is 2.538nm, silicon-aluminum molar ratio (SiO 2 / Al 2 O 3 ) Is 10, the sodium oxide content is 0.06wt%, the specific surface area is 800m 2 / g, pore volume is 0.42ml / g), pseudo-boehmite (specific surface area is 350m 2 / g, pore volume is 0.80cm 3 / g), the obtained catalyst numbers are E-2 to E-5.

[0042] Catalytic diesel is used as the raw material, and the sulfurized oil is straight-run kerosene. The properties are shown in Table 1; the presulfurization and test conditions of each catalyst are shown in Table 2; the composition and evaluation results of each catalyst are shown in Table 3.

[0043] Catalyst

[0044] From the results in Table 3, it can be seen that the catalyst without calcination is more active than conv...

Embodiment 6～13

[0046] The catalysts E-6 to E-13 prepared according to the method provided by the present invention.

[0047] Compared with Example 1, the difference is in addition to the type and content of active components, modified Y-type zeolite (unit cell parameter is 2.424nm, silicon-aluminum molar ratio (SiO 2 / Al 2 O 3 ) Is 50, sodium oxide content is 0.20wt%, specific surface area is 600m 2 / g, pore volume is 0.30ml / g), SiO 2 Pseudo-boehmite with a content of 4.2wt% (specific surface area of ​​250m 2 / g, pore volume is 1.20cm 3 / g) is the raw material, and the obtained catalyst numbers are E-6 to E-13.

[0048] Catalytic diesel is used as the raw material, and the sulfurized oil is straight-run kerosene. The properties are shown in Table 1; the presulfurization and test conditions of each catalyst are shown in Table 2; the composition and evaluation results of each catalyst are shown in Table 4.

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Abstract

The invention discloses the hydrotreatment catalyst and preparing method. The catalyst contains the 1wt%-10wt% organic auxiliary agent, using the inorganic refractory oxide compound containing the Y-molecular screen as carrier, and using the metals in the VIB and VIII as active metal componemt. The method comprises the following steps: using the inorganic refractory oxide compound containing the Y-molecular screen as carrier, after soaking the catalyst carrier in the active metal and organic auxiliary agent, drying at the 200íµ, and getting the catalyst. The said catalyst can be used for hydrotreating process of fraction of petroleum, especially for hydrodesulphurization and hydrodenitrification process of middle distillate oil.

Description

Technical field [0001] The invention relates to a hydroprocessing catalyst and a preparation method thereof, and is particularly suitable for a catalyst used in the hydrodesulfurization, hydrodenitrogenation and hydrodearomatization processes of distillate oil and a preparation method thereof. Background technique [0002] The purpose of hydrotreating is to remove impurities in the raw materials, such as sulfur, nitrogen, aromatics, carbon residue, and metals. With the increasing demand for light oil products, environmental protection laws and regulations have stricter and stricter requirements on the quality of oil products, and crude oil has become increasingly inferior, so hydroprocessing technology is even more important. [0003] At present, the method of desulfurization, denitrification and dearomatization of diesel fractions generally adopts a two-stage method, namely, the first stage of hydrodesulfurization and denitrification, and the second stage of hydrodearomatization...

Claims

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Application Information

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IPC IPC(8): C10G45/12
Inventor 刘全杰方向晨徐会青贾立明王旭王伟
Owner CHINA PETROLEUM & CHEM CORP
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