Preparation of hydrogenation and dehydrogenation catalysts
A catalyst support and dehydrogenation technology, applied in catalyst activation/preparation, molecular sieve catalyst, hydrogenation refining of aromatics, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] Example 1: Basic Example
[0043] About 100 grams of Si-MCM-41 combined with 35 wt% alumina was loaded into the dipped cone. A solution containing 7.8 grams of tetraammineplatinum nitrate solution (4% by weight platinum) and 25.86 grams of tetraamminepalladium nitrate (3.64% by weight platinum) was diluted to 142 ml with water. The solution was sprayed onto the Si-MCM-41 support while the cone was rotating at 8 RPM. The support was then dried in air and calcined in a muffle furnace at 580°F (304°C) for 1 hour. The properties of the resulting catalysts are shown in Table 1.
Embodiment 2
[0044] Example 2: Co-impregnation of MCM-41 with phosphoric acid
[0045] About 100 grams of Si-MCM-41 combined with 35 wt% alumina was loaded into the dipped cone. A solution containing 7.8 grams of tetraammineplatinum nitrate solution (4% by weight platinum), 25.86 grams of tetraamminepalladium nitrate (3.64% by weight platinum), and 0.23 grams of phosphoric acid was diluted with water to 142 ml. The solution was sprayed onto the Si-MCM-41 support while the cone was rotating at 8 RPM. The support was then dried in air and calcined in a muffle furnace at 580°F (304°C) for 1 hour. The properties of the resulting catalysts are shown in Table 1.
Embodiment 3
[0046] Example 3: Pretreatment with aluminum nitrate
[0047] About 100 grams of Si-MCM-41 combined with 35 wt% alumina was loaded into the dipped cone. A solution was prepared by adding 7.3 grams of aluminum nitrate to 142 ml of water. This solution was then sprayed onto the Si-MCM-41 support while the cone was rotating at 8 RPM. The support was then dried in air and calcined in a muffle furnace at 1000°F (538°C) for 3 hours. A second solution containing 7.8 grams of tetraammineplatinum nitrate solution (4% by weight platinum) and 25.86 grams of tetraamminepalladium nitrate (3.64% by weight platinum) was diluted to 142 ml with water. The solution was sprayed onto the Si-MCM-41 support while the cone was rotating at 8 RPM. The support was then dried in air and calcined in a muffle furnace at 580°F (304°C) for 1 hour. The properties of the resulting catalysts are shown in Table 1.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More