Beta-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: 2005-09-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN1210881A discloses a hydrocracking catalyst containing beta zeolite and amorphous silica-alumina, 5-40w% of beta-zeolite, 10-50w% of amorphous silica-alumina, and components such as active metals, because the zeolite content of the catalyst is relatively high High and amorphous silicon-alumina content is relatively low, so nitrogen resistance is not strong, can only be used in hydrocracking process with pre-refining

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take by weighing a kind of macroporous acidic amorphous silica-alumina (specific surface 520m 2 / g, SiO 2 35m%, infrared acidity 0.40mmol / g) 90.5g and a zeolite beta 5.8g, after mixing, add 120g (prepared by adding dilute nitric acid peptization to 14.7g pore volume of 0.42ml / g 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: 65m% of amorphous silica-alumina, 5m% of beta zeolite, 10m% of alumina, 4.5m% of nickel oxide and 15.5m% of tungsten oxide. The specific surface area of ​​the catalyst is 265m 2 / g, the pore volume is 0.39ml / g.

[0023] Among them, the properties of β zeolite are as follows: Zeolite SiO 2 / Al 2 o ...

example example 2

[0025] According to the method of Example 1, the dosage of each component was adjusted, and the final catalyst composition was 72 wt% of amorphous silica-alumina, 3 wt% of zeolite beta, 5 wt% of alumina, 5.5 wt% of nickel oxide, and 14.5 wt% of tungsten oxide. Others are with embodiment 1.

Embodiment 3

[0027] Take by weighing a kind of macroporous acidic amorphous alumina (specific surface 470m 2 / g, SiO 230m%, infrared acidity 0.38mmol / g) 77.5g and a zeolite beta 10.2g, after mixing, add 120g (prepared by adding dilute nitric acid peptization to 21.7g 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: 1m% of amorphous silica-alumina 5, 9m% of beta zeolite, 15m% of aluminum oxide, 6m% of nickel oxide and 19m% of tungsten oxide. The specific surface area of ​​the catalyst is 244m 2 / g, the pore volume is 0.36ml / g.

[0028] Among them, the properties of β zeolite are as follows: Zeolite SiO 2 / Al ...

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Abstract

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

Description

technical field [0001] The invention relates to a hydrocracking catalyst containing β zeolite, in particular to a nitrogen-resistant hydrocracking catalyst containing β zeolite. 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 functions, so it is especially suitable for proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/20
Inventor 陈松王继锋谷明镝关明华
Owner CHINA PETROLEUM & CHEM CORP
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