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Hydrocracking catalyst and preparation method and application thereof

A hydrocracking and catalyst technology, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of poor catalyst heavy oil cracking performance, unfavorable raw material macromolecular conversion, unreasonable acidity distribution, etc. The effect of increasing operational flexibility, increasing the processing capacity of the device, and greatly reducing the freezing point

Pending Publication Date: 2020-09-18
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The total pore volume and mesopore volume of molecular sieves prepared by conventional modification methods are relatively small, which is not conducive to the conversion of raw material macromolecules, the acid distribution is unreasonable, and the heavy oil cracking performance of the catalyst is still relatively poor. In the regeneration cycle, the zeolite components dispersed in it will be gradually sealed and embedded, thus losing the proper catalytic effect

Method used

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  • Hydrocracking catalyst and preparation method and application thereof
  • Hydrocracking catalyst and preparation method and application thereof
  • Hydrocracking catalyst and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The present embodiment provides a kind of preparation method of hydrocracking catalyst, and this method comprises:

[0061] 1. Preparation of Y-type zeolite / alumina composite material modified by ammonium fluorosilicate:

[0062] 1. Put 200.06g of industrial pseudo-boehmite in a muffle furnace, raise the temperature to 600°C at a rate of 4°C / min, and roast for 4 hours to obtain activated alumina.

[0063] 2. Put 120.51g of water glass in a beaker, control the temperature in the beaker to 60°C, add 80g of guiding agent and 220.23g of deionized water, and then add 100g of activated alumina, and mix well to obtain a raw material mixture. Among them, guiding The agent is prepared according to the method provided in Example 1 of CN1785808A.

[0064] 3. Put the raw material mixture into a stainless steel reaction kettle, crystallize at 100°C for 4 hours, then filter, wash and dry to obtain a Y-type zeolite / alumina composite material.

[0065] 4. Weigh 300g Y-type zeolite / al...

Embodiment 2

[0075] The present embodiment provides a kind of preparation method of hydrocracking catalyst, and this method comprises:

[0076] 1. Preparation of Y-type zeolite / alumina composite material modified by ammonium fluorosilicate:

[0077] 1. Put 500.15g of industrial pseudo-boehmite in a muffle furnace, raise the temperature to 700°C at a rate of 4°C / min, and roast for 4 hours to obtain activated alumina.

[0078] 2. Put 140.84g of water glass in a beaker, control the temperature in the beaker to 60°C, add 130.25g of directing agent and 150g of deionized water, then add 200.7g of activated alumina, stir for 3 hours, and mix well to obtain a raw material mixture , wherein the preparation method of the directing agent is the same as in Example 1.

[0079] 3. Put the raw material mixture into a stainless steel reaction kettle, crystallize at 100°C for 72 hours, then filter, wash and dry to obtain a Y-type zeolite / alumina composite material.

[0080] 4-5. The Y-type zeolite / alumin...

Embodiment 3

[0089] The present embodiment provides a kind of preparation method of hydrocracking catalyst, and this method comprises:

[0090] 1. Preparation of Y-type zeolite / alumina composite material modified by ammonium fluorosilicate:

[0091] 1. Put 200.11g of alumina trihydrate in a muffle furnace, raise the temperature to 600°C at a rate of 4°C / min, and roast for 2 hours to obtain activated alumina.

[0092] 2. Place 149.66g of water glass in a beaker, add 100.02g of directing agent and 150g of deionized water, then add 80.51g of activated alumina, stir and mix to obtain a raw material mixture, wherein the preparation method of the directing agent is the same as in Example 1.

[0093] 3. Put the raw material mixture into a stainless steel reaction kettle, crystallize at 110°C for 5 hours, then filter, wash and dry to obtain a Y-type zeolite / alumina composite material.

[0094] 4-5. The Y-type zeolite / alumina composite material sample was modified with ammonium fluorosilicate acco...

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Abstract

The invention provides a hydrocracking catalyst as well as a preparation method and application thereof. The hydrocracking catalyst comprises a carrier, a hydrogenation metal component and an auxiliary agent, wherein the hydrogenation metal component and the auxiliary agent exist in the form of a metal oxide. The metal component comprises an oxide of a VIB group metal and an oxide of a VIII groupmetal. The carrier is prepared from an ammonium fluosilicate modified Y-type zeolite / aluminum oxide composite material, and the ammonium fluosilicate modified Y-type zeolite / aluminum oxide composite material is prepared by mixing activated aluminum oxide, a guiding agent, a silicon source and water, carrying out hydrothermal crystallization and performing modification with ammonium fluosilicate. The invention also provides a preparation method of the hydrocracking catalyst. The invention further provides application of the hydrocracking catalyst in heavy oil hydrocracking. The hydrocracking catalyst provided by the invention has high hydrogenation activity and moderate acidity and stepped pore distribution, and can reduce secondary cracking of cracking products.

Description

technical field [0001] The invention relates to the field of hydrocracking catalysis, in particular to a hydrocracking catalyst and its preparation method and application. Background technique [0002] As the crude oil becomes heavier and inferior, the feed to the hydrocracking unit becomes heavier, which will lead to higher hydrogen consumption, lower yield, poorer product quality and shorter operating cycle, etc. question. In the secondary processing technology of crude oil, distillate oil hydrocracking technology has the characteristics of strong adaptability of raw materials, high flexibility of production operation and product plan, and good product quality. It can directly convert various heavy and low-quality raw materials into High-quality jet fuel, diesel, lubricating oil base materials, chemical naphtha and tail oil steam cracking ethylene raw materials, etc., play the role of product distribution and product quality regulators in the production process of the who...

Claims

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Application Information

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IPC IPC(8): B01J29/16B01J35/10C10G47/20
CPCB01J29/166C10G47/20C10G2300/1037B01J2229/20B01J35/615B01J35/617B01J35/633B01J35/635B01J35/69
Inventor 申宝剑曾鹏晖孙发民李海岩郭巧霞谢方明姜维张铁珍
Owner BC P INC CHINA NAT PETROLEUM CORP