Unlock instant, AI-driven research and patent intelligence for your innovation.

Method of recycline fine powder of cracking catalyst

A cracking catalyst and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, catalyst regeneration/reactivation, etc., can solve problems such as increasing the solid content of oil slurry, economic losses in refineries, and reducing product quality, etc., to achieve Environmental protection, low operating costs, and economical recycling effects

Inactive Publication Date: 2005-03-02
CHINA PETROLEUM & CHEM CORP +1
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical application, a small part of the catalyst fine powder less than 20 μm enters the cracked oil and gas, which will increase the solid content of the oil slurry and reduce the quality of the product, and the rest will be discharged into the atmosphere with the regeneration flue gas, causing pollution to the environment
At the same time, the running loss of the catalyst will also bring economic losses to the refinery

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This example shows that after the catalyst fine powder is treated by the method provided by the present invention, the properties of the obtained catalyst are basically equivalent to those of catalyst products with qualified particle size.

[0020] The test procedure is as follows: the catalyst fine powder less than 20 μm is configured into a slurry with a solid content of 20% by weight, ground with a sand mill, and the feed space velocity is 6h -1 After 5 minutes, the average particle size of the particles in the slurry was 1.2 μm, and the slurry showed good gel properties. The above slurry was directly added to the aged colloid of the original brand of catalyst A with a mixing ratio of 1:1, stirred evenly and then spray-dried to obtain catalyst product B. Catalysts A and B were subjected to hydrothermal aging and test evaluation under the same conditions, and the test results obtained are shown in Table 1.

[0021] catalyst

Embodiment 2

[0023] This example shows that after the catalyst fine powder is treated by the method provided by the present invention, the properties of the obtained catalyst are basically equivalent to those of catalyst products with qualified particle size.

[0024] The test procedure is as follows: the catalyst fine powder is configured into a slurry with a solid content of 50% by weight, ground with a sand mill, and the feed space velocity is 4h -1 After 9 minutes, the average particle size of the particles in the slurry was 1.1 μm, and the slurry showed good gel properties. The above-mentioned slurry was directly added to the aged colloid of the original brand of catalyst A in an amount of 30% by weight, stirred evenly and then spray-dried to obtain catalyst product C. The two catalysts A and C were subjected to hydrothermal aging and test evaluation under the same conditions, and the test results obtained are shown in Table 2.

[0025] catalyst

Embodiment 3

[0027] This example shows that after the catalyst fine powder is treated by the method provided by the present invention, the properties of the obtained catalyst are basically equivalent to those of catalyst products with qualified particle size.

[0028] The test procedure is as follows: the catalyst fine powder is configured into a slurry with a solid content of 40% by weight, ground with a sand mill, and the feed space velocity is 8h -1 After 5 minutes, the average particle size of the particles in the slurry was 1.0 μm, and the slurry showed good gel properties. Send the above slurry to a spray drying device for drying to obtain catalyst D. Catalyst D is mixed with catalyst A, and the weight ratio of mixing is A:D=3:2, and the new catalyst obtained after mixing is E. The two catalysts A and E were subjected to hydrothermal aging and test evaluation under the same conditions, and the test results obtained are shown in Table 3.

[0029] catalyst

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A process for reclaiming the fine powder of catalytic catalyst includes mixing the cation-removed water with said fine powder to obtain slurry, stirring, grinding, mixing with the colloid of same catalyst, stirring, and spray drying. Its advantages are simple process etc.

Description

technical field [0001] The invention relates to a method for recycling cracking catalyst fine powder. Background technique [0002] The current catalytic cracking process generally adopts a riser reactor. The catalyst is mixed and reacted with the atomized raw oil in the reactor to obtain the target product. This reaction form requires the catalyst to have good fluidization characteristics, that is, to the catalyst The particle size distribution has certain requirements. In practical application, a small part of the catalyst fine powder less than 20 μm enters the cracked oil and gas, which will increase the solid content of the oil slurry and reduce the quality of the product, and the rest will be discharged into the atmosphere with the regeneration flue gas, causing pollution to the environment. At the same time, the running loss of the catalyst will also bring economic losses to the refinery. The existing cracking catalyst molding method is mainly spray drying, and the c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J38/00
Inventor 周健田辉平李学锋吕庐峰许明德
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com