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Y-zeolite containing anti-nitrogen hydrocracking catalyst

A hydrocracking and catalyst technology, applied in hydrocarbon oil cracking, petroleum industry, etc., can solve the problems of low content of amorphous silicon and aluminum, poor nitrogen resistance, etc., to improve selectivity, strong nitrogen resistance, and avoid coking Inactivation effect

Inactive Publication Date: 2004-06-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN1253859A discloses a high and medium oil type hydrocracking catalyst, the catalyst contains 4-40% Y zeolite and 10-50% amorphous silicon-alumina and other components, because the zeolite content of the catalyst is relatively high and amorphous silicon-alumina The content is relatively low, so the nitrogen resistance is not strong, and it can only be used in the hydrocracking process with pre-refining

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take by weighing a kind of macroporous acidic amorphous silica-alumina (specific surface 520m 2 / g, pore volume 1.1ml / g, SiO 2 35wt%, infrared acidity 0.40mmol / g) 77.2g and a Y zeolite 6.1g, after mixing, add 120g (prepared by 24.6g pore volume 0.42ml / g small-pore alumina plus dilute nitric acid peptization) for bonding After the agent is rolled into a ball, put it into an extruder and extrude it, dry it at 110°C for 10 hours, activate it at 500°C for 4 hours to obtain a carrier, impregnate it with Mo-Ni co-impregnation solution, and then dry it at 110°C2 After 12 hours and 500°C activation for 3 hours, the catalyst was obtained. The final composition of the catalyst is: 51 wt% of amorphous silica-alumina, 5 wt% of Y zeolite, 14 wt% of aluminum oxide, 7.5 wt% of nickel oxide and 22.5 wt% of tungsten oxide. The specific surface area of ​​the catalyst is 220m 2 / g, pore volume 0.33ml / g.

[0018] Wherein the treatment process of Y zeolite type is as follows:

[0019] ...

Embodiment 2

[0024] Take by weighing a kind of macroporous acidic amorphous silicon-alumina (specific surface 460m 2 / g, pore volume 1.2ml / g, SiO 2 45wt%, infrared acidity 0.50mmol / g) 85.8g and a Y zeolite 12.1g, after mixing, add 120g (prepared by adding dilute nitric acid peptization to 15.6g pore volume 0.42ml / g small-pore alumina) for bonding After the agent was rolled into a ball, it was placed in an extruder and extruded to shape, dried at 110°C for 10 hours, activated at 500°C for 4 hours to obtain a carrier, impregnated with Mo-Ni co-impregnating solution, and then dried at 110°C for 12 hours. hours, and after activation at 500°C for 3 hours, the catalyst was obtained. The final composition of the catalyst is: 60 wt% of amorphous silica-alumina, 10 wt% of Y zeolite, 10 wt% of aluminum oxide, 5.5 wt% of nickel oxide and 14.5 wt% of tungsten oxide. The specific surface area of ​​the catalyst is 255m 2 / g, pore volume 0.41ml / g. .

[0025] Wherein the treatment process of Y zeolit...

Embodiment 3

[0028] According to the method in Example 2, the dosage of each component was adjusted, and the final catalyst composition was 72 wt% of amorphous silica-alumina, 3 wt% of Y zeolite, 5 wt% of alumina, 5.5 wt% of nickel oxide, and 14.5 wt% of tungsten oxide. Others are with embodiment 2.

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Abstract

The invention relates to a Y-zeolite containing anti-nitrogen-type hydrocracking catalyst, selecting proper Y-zeolite to assort with special acidic unformed sial, to make the catalyst have higher activity and medium-oil selectivity, able to directly process high-nitrogen content raw material without prerefining segment, and able to meet cracking active requirement of full circulation. It is applied to maximumly producing the clean fuel.

Description

technical field [0001] The invention relates to a hydrocracking catalyst containing Y zeolite, in particular to a nitrogen-resistant hydrocracking catalyst containing Y zeolite which can be used in a full cycle process. Background technique [0002] The hydrocracking process can be mainly divided into one-stage method and two-stage method, and the operation mode can be mainly divided into full cycle and one-time pass. Precious metal hydrocracking catalysts are generally used in two-stage processes because they are sensitive to sulfur and nitrogen in raw oil. Non-precious metal hydrocracking catalysts are widely used in one-stage process or single-stage process. According to the characteristics of the acidic cracking center of the catalyst or the difference in nitrogen poisoning resistance, it can be divided into one-stage series or single-stage single-agent process. [0003] Hydrocracking catalyst is a dual-function catalyst, which has both hydrogenation and cracking functi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G47/20
Inventor 陈松关明华谷明镝王继锋
Owner CHINA PETROLEUM & CHEM CORP
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