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Aluminosilicate containing molecular sieve catalyst, its preparation method and application

An aluminosilicate and catalyst technology, which is applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc. Active and economical effects

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

The disadvantage of this process is that after the drying treatment, the noble metal and the carrier do not form a firm interaction, but only adhere to the surface of the carrier channel. In the process of mixing with the molecular sieve, it needs to be mixed with water for a certain period of time to reach a plastic state. During this process, due to the introduction of water, the metal components on the surface of the carrier will be partially dissolved and migrate into the pores of the molecular sieve during the kneading process. Therefore, the complete isolation of the metal components from the molecular sieve cannot be achieved, and the expected Effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh silica-alumina (abbreviated as silica-alumina, containing 35wt% silica, specific surface area 520m 2 / g, pore volume 1.49ml / g) 102.5g, excessively impregnated with Mo-Ni co-impregnation solution, dried at 110°C for 5 hours, calcined at 500°C for 4 hours, and then combined with the Y zeolite component (SiO 2 / Al 2 o 3 9.5, infrared acidity 0.44mmol / g) 26.6g after mixing, add 250g of the jelly-like adhesive that adds nitric acid peptization by the small hole alumina of pore volume 0.42ml / g and roll into a ball, put into extrusion Extrude in a bar machine, dry at 120°C for 4 hours, and activate at 450°C for 4 hours to obtain catalyst A. The total amount of catalyst hydrogenation metal oxide is 23wt%, Mo / Ni weight ratio is 2.5:1.

Embodiment 2

[0037] Take by weighing 116.5g of silicon-aluminum, with a kind of Mo-Ni co-impregnation solution excessive impregnation, after drying, roasting, the same Y zeolite component 30.5g as example 1, after mixing, add 250g by pore volume 0.42ml / g After the jelly-like adhesive of small-pore alumina and nitric acid peptization is rolled into a ball, it is put into an extruder to form a strip, dried and activated to obtain catalyst B. The total amount of catalyst hydrogenation metal oxide is 25wt%. Other conditions are identical with embodiment 1.

Embodiment 3

[0039] Weigh 120g of silicon-alumina, impregnate excessively with a kind of Mo-Ni co-impregnation solution, dry and roast with a kind of industrial β zeolite (SiO 2 / Al 2 o 3 30, infrared acidity 0.45mmol / g) component 35g, after mixing, add 280g by the small hole alumina of pore volume 0.42ml / g plus the nitric acid peptization jelly-like adhesive to roll into a ball, put Put it into the extruder and extrude it into a strip, dry and activate it to get the catalyst C. The total amount of catalyst hydrogenation metal oxide is 26 wt%. Other conditions are identical with embodiment 1.

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PUM

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Abstract

The invention discloses a siliceous aluminate molecular screen, its preparing method and application. Said catalyst contains a carrier component, a siliceous aluminate molecular screen, and at least one metal hydrogenated component, wherein, the metal hydrogenated component is loaded on the carrier component. The preparing method comprises loading hydrogenated metal component on the carrier component to be dried and sintered for mixed molding and activating with other materials to attain the catalyst. The invention can solve the problems of present catalyst whose hydrogenated metal can not be separated from molecular screen completely, to improve the property of molecular screen and the selectivity of catalyst. The invention has higher activity and selectivity when it is used in the hydrogenation crack process.

Description

technical field [0001] The invention relates to a molecular sieve catalyst containing aluminosilicate, a preparation method thereof, and a process for hydrocracking distillate oil by using the catalyst. Background technique [0002] The growth of the world's energy consumption has made every refinery strive to broaden the source of raw materials, while the depth of processing is also increasing. Therefore, facing the problem of processing increasingly heavier and poorer quality raw materials, the hydrocracking process with flexible operation and high feedstock adaptability has become one of the important means of lightening heavy oil. [0003] Hydrocracking is an important means of petroleum processing, especially for the secondary processing of distillate oil to produce various petroleum products. At present, the crystal type zeolite commonly used in hydrocracking catalysts is mainly Y-type zeolite, and the modified Y zeolite is used as the main acid cracking component of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/06C10G45/12
Inventor 谷明镝王刚陈松姜蕊
Owner CHINA PETROLEUM & CHEM CORP
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