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A kind of preparation method of catalyst protection agent filler

A protective agent and catalyst technology, which is applied in the field of preparation of catalyst protective agent fillers, can solve problems such as environmental pollution and high energy consumption, and achieve the effects of improving efficiency, saving resources, and being easy to implement

Inactive Publication Date: 2015-11-11
曹学仁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the catalyst cannot be regenerated multiple times, and there are high energy consumption and serious environmental pollution when recycling metals in the catalyst, so how to adopt a better method to recycle the spent catalyst and use it in the catalyst catalytic reactor for a long time Among them, it can not only ensure that the materials will not be wasted, will not cause environmental pollution, but also can ensure that the catalyst is more active and has a longer service life. It still needs further discussion.

Method used

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  • A kind of preparation method of catalyst protection agent filler
  • A kind of preparation method of catalyst protection agent filler
  • A kind of preparation method of catalyst protection agent filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Use the method shown above: by weight, active alumina is added 15%, pseudo-boehmite is added 15%, waste catalyst containing molybdenum, nickel, cobalt components 70%, cellulose 1%, water 25%, program The sintering process is: 20°C-160°C for 2 hours, 160°C-380°C for 2 hours, and 380°C-580°C for 4 hours to obtain the catalyst protection agent packing of Example 1: Ф5mm Raschig rings (such as Figure 5 ), the chemical composition is by weight:

[0041] Al 2 o 3 : 87%MoO 3 : 8.5%NiO: 1.5%CoO: 3% Physical properties: specific surface area 133m 2 / g, bulk density 720Kg / m 3 ,compressive strength≥33N / grain

Embodiment 2

[0043] Using the method shown above: by weight, activated alumina 15%, pseudoboehmite 15%, spent catalyst containing molybdenum and cobalt components 70%, cellulose 1%, water 25%, programmed sintering process For: 20 ° C ~ 160 ° C for 2 hours, 160 ° C ~ 380 ° C for 1 hour, 380 ° C ~ 580 ° C for 4 hours, to obtain Example 2 Catalyst protection agent filler: Ф6mm Raschig rings, the chemical composition is by weight:

[0044] Al 2 o 3 : 90%MoO 3 : 8%CoO: 2%

[0045] The physical properties are: the specific surface area is 130m 2 / g, bulk density 700Kg / m 3 ,compressive strength≥33N / grain

Embodiment 3

[0047] Use the method shown above: by weight, add 25% of activated alumina, 60% of spent catalyst containing nickel and cobalt components, 15% of aluminum sol, 1.5% of cellulose, 20% of water, and the programmed sintering process is: 20°C ~160°C for 1 hour, 160°C~380°C for 2 hours, 380°C~580°C for 4 hours to obtain Example 3 Catalyst protection agent packing: Ф8mm Raschig rings, chemical composition by weight:

[0048] Al 2 o 3 : 90%NiO: 2.5%MoO 3 : 7.5%

[0049] The physical properties are: the specific surface area is 139m 2 / g, bulk density 650Kg / m 3 ,compressive strength≥66N / grain

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Abstract

The invention provides a preparation method of a catalyst protective agent filler. According to the invention, a filler with catalytic activity and filtration protection effects can be prepared by effective utilization of a waste hydrogenation catalyst. The filler can be filled in the bottom and the upper part of a catalyst in a catalytic reactor and is used to replace a traditional ceramic packing ball or ceramic drilled packing ring. The product is ball-shaped, ring-shaped, bar-shaped and the like, and there are a lot of connected micropores therein. Porosity can exceed 50%. The micropores have effects of filtering of subparticle impurities in oil refining materials, purification of raw materials, uniform distribution and the like. In addition, the catalyst protective agent filler can better protect a catalyst, prolong service life of the catalyst and prevent the catalyst from metal poisoning than traditional catalyst protective agents such as porcelain balls, porcelain rings and the like. The method provided by the invention can be adopted to save resources and raise benefit, and is easy to implement technically.

Description

technical field [0001] The invention relates to a method for preparing a catalyst protector filler, in particular to a method for preparing a catalyst protector filler with a waste catalyst, and is especially suitable for the production process of hydrocracking. Background technique [0002] Catalysts are indispensable chemical substances in the chemical industry. According to statistics, the annual consumption of industrial catalysts in the world exceeds 800,000 tons, and the annual consumption in China is about 70,000 tons, and it is still increasing. Among them, oil refining catalysts accounted for about 52%, chemical catalysts accounted for about 42%, and environmental protection catalysts (automobile exhaust gas purification catalysts) accounted for about 6%. The activity of catalysts used in industry will decrease or fail completely as the running time prolongs. Generally speaking, the service life of catalysts in the petrochemical industry is 2 to 3 years. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J33/00B01J23/94B01J23/883B01J23/882
Inventor 曹学仁J·马奥德冷永财高莲宫亚茜
Owner 曹学仁
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