Method for catalyzing formaldehyde dehydrogenation by using AgPd/porous CexCuyOz nano-catalyst
A nano-catalyst and formaldehyde technology, applied in the field of chemical industry, can solve problems such as unsatisfactory effects, and achieve the effect of simple operation and high activity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0020] Catalyst preparation process
[0021] Dissolve 3 mmol cerium nitrate, 5 mmol copper nitrate and 18 mmol 2-methylimidazole in 200 mL methanol to form a homogeneous solution, stir at 15 °C for 27 h, centrifuge to obtain Ce-Cu-MOF, transfer Ce-Cu-MOF to a tube furnace , at 480°C for 5 hours, and the firing atmosphere is 5% O 2 / N 2 , roasted to produce porous CexCuyOz, the prepared porous CexCuyOz was placed in a solution containing 1mmol silver nitrate and 0.3mmol potassium chloropalladate, and reduced with 0.13mol / L ammonia borane solution at -2°C for 4h to obtain a catalyst , denoted as AgPd 0.3 / Porous Ce 3 Cu 5 Oz nano-catalyst, airtight storage.
[0022] Dehydrogenation process
[0023] Put 50 mg of the above catalyst into a tubular reactor, then place the tubular reactor in a water bath to control the reaction temperature at -5°C, and add dropwise 3.5 g of formaldehyde and sodium hydroxide mixed solution with a molar ratio of 1:0.6 , collect the reaction gas...
Embodiment 2
[0025] Catalyst preparation process
[0026] Dissolve 7 mmol of cerium nitrate, 2 mmol of copper nitrate and 24 mmol of 2-methylimidazole in 200 mL of methanol to form a homogeneous solution, stir at 33 °C for 18 h, centrifuge to obtain Ce-Cu-MOF, transfer Ce-Cu-MOF to a tube Furnace, firing time at 530°C for 2h, firing atmosphere is 11%O 2 / N 2 , roasted to obtain porous CexCuyOz, the prepared porous CexCuyOz was placed in a solution containing 1mmol silver nitrate and 0.6mmol potassium chloropalladate, and reduced with 0.26mol / L ammonia borane solution at 3°C for 2h to obtain a catalyst. denoted as AgPd 0.6 / Porous Ce 7 Cu 2 Oz nano-catalyst, airtight storage.
[0027] Dehydrogenation process
[0028] Put 50 mg of the above catalyst into a tubular reactor, then place the tubular reactor in a water bath to control the reaction temperature to 20°C, add dropwise 7 g of formaldehyde and sodium hydroxide mixed solution with a molar ratio of 1:1.2, and collect Reaction g...
Embodiment 3
[0030] Catalyst preparation process
[0031] Dissolve 3 mmol cerium nitrate, 4 mmol copper nitrate and 19 mmol 2-methylimidazole in 200 mL methanol to form a homogeneous solution, stir at 28 °C for 24 h, centrifuge to obtain Ce-Cu-MOF, transfer Ce-Cu-MOF to a tube Furnace, calcination time 4h at 520℃, calcination atmosphere is 9%O 2 / N 2 , roasted to obtain porous CexCuyOz, the prepared porous CexCuyOz was placed in a solution containing 1mmol silver nitrate and 0.4mmol potassium chloropalladate, and reduced with 0.23mol / L ammonia borane solution at 3°C for 4h to obtain a catalyst. denoted as AgPd 0.4 / Porous Ce 3 Cu 4 Oz nano-catalyst, airtight storage.
[0032] Dehydrogenation process
[0033] Put 50 mg of the above-mentioned catalyst into a tubular reactor, then place the tubular reactor in a water bath to control the reaction temperature to 18° C., add dropwise 6.5 g of formaldehyde and sodium hydroxide mixed solution with a molar ratio of 1:1.1, The reaction gas...
PUM
Login to view more Abstract
Description
Claims
Application Information
Login to view more - 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