A kind of unsaturated hydrocarbon selective hydrogenation catalyst and preparation method
A hydrogenation catalyst and selective technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc. low activity problem
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0021] 1. Preparation of nickel-doped lanthanum ferrite
[0022] Under the condition of stirring, dissolve 2.51mol of lanthanum nitrate in 120mL of water, add citric acid and stir to dissolve; then add 4.79mol of ferric nitrate, then add 190g of sodium polyacrylate, and then add an aqueous solution containing 42g of nickel nitrate, continue to stir for 30min, after drying Drying, roasting and grinding to obtain nickel-doped lanthanum ferrite.
[0023] 2. Preparation of silica-alumina carrier
[0024]Add citric acid to 4.5 g of nickel-doped lanthanum ferrite for later use. Add 300g of pseudo-boehmite powder and 25.0g of fenugreek powder into a kneader, add nitric acid, then add 40.2g of sodium polyacrylate nitric acid solution, and mix well, then add nickel-doped lanthanum ferrite, mix well, and get Alumina precursor. Dissolve 5g of sodium polyacrylate in nitric acid, then add 38g of microsilica powder and 50g of pseudoboehmite powder, and stir evenly to obtain a mixture of ...
Embodiment 2
[0028] The preparation of nickel-doped lanthanum ferrite is the same as in Example 1, except that 260g of sodium polyacrylate is added, and the preparation of the silica-alumina carrier is the same as in Example 1. The silica-alumina carrier contains 4.4wt% of silicon oxide, 5.7wt% % nickel-doped lanthanum ferrite, 1.2wt% magnesium, carrier mesopores accounted for 63.8% of the total pores, and macropores accounted for 25.9% of the total pores. The unit content of sodium polyacrylate in the alumina precursor is 3 times higher than the content of sodium polyacrylate in the silicon source-organic polymer mixture. The preparation method of catalyst 2 is the same as that of Example 1. The content of catalyst 2 is 11.4wt% of nickel oxide, 4.75wt% of molybdenum oxide and 1.4wt% of magnesium oxide.
Embodiment 3
[0030] The preparation of nickel-doped lanthanum ferrite is the same as in Example 1, except that 220g of polyacrylic acid is added, and the preparation of the silica-alumina carrier is the same as in Example 1. The silica-alumina carrier contains 8.4wt% of silicon oxide, 2.6wt% The nickel-doped lanthanum ferrite, 2.1wt% magnesium, the support mesopores accounted for 54.9% of the total pores, and the macropores accounted for 33.1% of the total pores. The unit content of polyacrylic acid in the alumina precursor is 3.3 times higher than that in the silicon source-organic polymer mixture. The preparation method of catalyst 3 is the same as that of Example 1. The content of catalyst 3 is 22.3wt% of nickel oxide, 4.1wt% of molybdenum oxide and 0.32wt% of magnesium oxide.
PUM
Property | Measurement | Unit |
---|---|---|
specific surface area | 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com