Method for preparing hydrocracking catalyst

A technology for hydrocracking and catalyst is applied in the field of medium oil type hydrocracking catalyst and its preparation, which can solve the problems of low catalyst activity, large surface area, catalyst loss, etc., and is beneficial to the exertion of metal activity and simplifies the preparation process. , the effect of increased lytic activity

Active Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the catalyst has been treated with amorphous silica-alumina in the preparation process, which is beneficial to improve the catalytic activity,

Method used

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  • Method for preparing hydrocracking catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Put 150.7 grams of amorphous silica-alumina prepared by graft copolymerization, 55.6 grams of macroporous alumina, and 148.4 grams of binder prepared by dilute nitric acid and small-pored alumina into a roller compactor, and then rolled for 30 minutes, and then added Appropriate amount of water, grind until the paste can be extruded, extruded, and dried at 180°C for 4 hours to obtain the carrier. with WO 3 56g / 100ml, NiO12g / 100ml impregnation solution impregnated the carrier at room temperature for 2 hours, separated the mother liquor, dried at 110°C for 4 hours, and calcined at 500°C for 4 hours to obtain catalyst C1.

Embodiment 2

[0034] Put 133.4 grams of amorphous silica-alumina prepared by 150.7 grams of graft copolymerization, 28.5 grams of boric acid, 46.6 grams of macroporous alumina, and 133.4 grams of adhesives prepared by dilute nitric acid and small-pored alumina into a rolling machine, and roll for 30 Minutes, then add an appropriate amount of water, grind until the paste can be extruded, extrude, and dry the extruded strips at 150 ° C for 8 hours to obtain a carrier. with WO 3 56g / 100ml, NiO12g / 100ml impregnation solution impregnated the carrier at room temperature for 2 hours, separated the mother liquor, dried at 110°C for 4 hours, and calcined at 500°C for 4 hours to obtain catalyst C2.

Embodiment 3

[0036] Put 133.4 grams of amorphous silica-alumina prepared by 150.7 grams of graft copolymerization, 14.3 grams of boric acid, 46.6 grams of macroporous alumina, and 133.4 grams of adhesives prepared by dilute nitric acid and small-pored alumina into a rolling machine, and roll for 30 Minutes, then add an appropriate amount of water, grind until the paste can be extruded, extrude, and dry the extruded strips at 200 ° C for 6 hours to obtain a carrier. with WO 3 56g / 100ml, NiO12g / 100ml impregnation solution impregnated the carrier at room temperature for 2 hours, separated the mother liquor, dried at 110°C for 4 hours, and calcined at 500°C for 4 hours to obtain catalyst C3.

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Abstract

The invention discloses a method for preparing a hydrocracking catalyst. In the catalyst, amorphous silicon aluminum and aluminum oxide are taken as a carrier, group VIII and VIB metal is taken as a hydrogenation active ingredient, and the catalyst contains an active substance B2O3 preferably. The catalyst is prepared by mixing and forming the amorphous silicon aluminum and the aluminum oxide, drying, loading active metal by an impregnation method, drying and roasting. Compared with the conventional impregnation method, the method has the advantages that: the formed catalyst is not roasted, so that the preparation process is simplified, time and energy are saved, strong interaction between the active metal and the carrier is reduced, the metal is uniformly distributed, the activity of themetal is more easily exerted, and the specific surface area is prevented from being lost due to multi-step roasting. The catalyst prepared by the method is particularly suitable for the processes of hydrocracking distillate oil and hydrogenating productive middle distillate oil, and has high activity and middle distillate oil selectivity.

Description

technical field [0001] The invention relates to a hydrocracking catalyst and a preparation method thereof, in particular to a medium oil type hydrocracking catalyst containing amorphous silicon aluminum and a preparation method thereof. Background technique [0002] The main features of hydrocracking technology are strong adaptability of raw materials, flexible product schemes, high selectivity of target products, good product quality and high added value, etc., and can directly produce a variety of high-quality petroleum products (such as gasoline, jet fuel, diesel oil, lubricating oil, etc.) Base oil, etc.) and high-quality chemical raw materials (such as raw materials for the production of benzene, toluene, xylene, ethylene, etc.). Therefore, as the quality of crude oil deteriorates year by year, the market demand for high-quality petroleum products and high-quality chemical raw materials continues to grow, and new environmental protection regulations have been promulgate...

Claims

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Application Information

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IPC IPC(8): B01J23/888B01J35/10C10G47/12
Inventor 姜虹杨占林王继锋唐兆吉温德荣魏登凌
Owner CHINA PETROLEUM & CHEM CORP
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