Process for preparing ammonia synthesis catalyst
A catalyst, ammonia synthesis technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. problems, to achieve the effect of simple preparation device, large preparation volume flexibility, and short preparation period
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0017] Example 1
[0018] Dissolve ruthenium trichloride in water to prepare an immersion solution. Take the required amount of dipping solution and place it in the dipping tank, add a certain amount of activated carbon (AC) carrier, immerse for 3-10 minutes, filter out the catalyst and drain it, place it in a drying oven at 80°C for 15 minutes After taking it out and immersing it in the dipping tank for 3-10 minutes, it is placed in a drying box and dried at 80°C for 15 minutes, so that the immersion liquid in the dipping tank is completely absorbed by the carrier. The specific surface area of the activated carbon carrier used is 857m 2 / g.
[0019] Add 200ml of hydrazine aqueous solution made from 3ml of 80% hydrazine aqueous solution and 197ml of deionized water to the catalyst impregnated with ruthenium. The temperature of the hydrazine aqueous solution is about 30-95°C, and the reduction takes about 20 minutes. After reduction, the catalyst is drained.
[0020] Add 200 ml o...
Example Embodiment
[0024] Example 2
[0025] Repeat the process of Example 1, but change the dipping method to the spray method. A certain amount of impregnating liquid was sprayed on the activated carbon support used in Example 1 several times. The amount of liquid sprayed each time is equivalent to the amount of liquid used for equal volume immersion.
Example Embodiment
[0026] Example 3
[0027] The process of Example 1 was repeated, except that hydrogen was used as the reducing medium of the catalyst. The reduction temperature is 200-475°C, and the reduction time is 4-5 hours.
PUM
Property | Measurement | Unit |
---|---|---|
Surface area | aaaaa | aaaaa |
Specific surface | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap