Two-component manganese-based loaded catalyst prepared by using supergravity spray impregnation method and application of catalyst
A supported catalyst, hypergravity technology, applied in catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc. According to the problems of short production cycle and uneven load, it can achieve the effect of promoting uniform adsorption, shortening production cycle and shortening dipping time.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] Example 1: Using figure 1 Process flow shown, with 1-2 mm spherical γ-Al 2 o 3As a carrier, it was washed repeatedly with deionized water, dried at 105 °C for 4 h, calcined at 300 °C for 4 h, cooled and evenly packed into a rotating packed bed with a filling capacity of 40 g / L. Prepare a mixed solution of copper nitrate and manganese acetate metal salt with a molar ratio of 1:2 at 0.18 mol / L, adjust the pH to 5.0, and put it into the storage tank. The impregnating liquid was sent into the high-gravity rotating packing bed through a circulating pump, the liquid flow rate was 40 L / h, and the rotating speed was set at 600 rpm to make it fully contact with the carrier for impregnation, and the cycle impregnation time was 30 min. Then the hot air was passed for 60 min to take away the moisture on the surface of the catalyst and fix the active components. Take out the catalyst and bake it at 500℃ for 4 h to get Cu-Mn / γ-Al 2 o 3 catalyst.
Embodiment 2
[0027] Example 2: Using figure 1 Process flow shown, with 1-2 mm spherical γ-Al 2 o 3 As a carrier, it was washed repeatedly with deionized water, dried at 105°C for 4 hours, and calcined at 300°C for 4 hours. After cooling, it was evenly packed into a rotating packed bed with a filling capacity of 80 g / L. Prepare a mixed solution of copper nitrate and manganese acetate metal salt with a molar ratio of 1:1 at 0.3 mol / L, adjust the pH to 5.0, and put it into the storage tank. The impregnating liquid was sent into the high-gravity rotating packed bed through a circulating pump, the liquid flow rate was 60 L / h, and the rotating speed was set at 1200 rpm to make it fully contact with the carrier for impregnation, and the cycle impregnation time was 60 min. Then the hot air was passed for 60 min to take away the moisture on the surface of the catalyst and fix the active components. Take out the catalyst and bake it at 700℃ for 3 h to get Cu-Mn / γ-Al 2 o 3 catalyst.
Embodiment 3
[0028] Example 3: Using figure 1 Process flow shown, with 1-2 mm spherical γ-Al 2 o 3 As a carrier, it was washed repeatedly with deionized water, dried at 105 °C for 4 h, calcined at 300 °C for 4 h, cooled and evenly packed into a rotating packed bed with a filling capacity of 50 g / L. Prepare a mixed solution of copper nitrate and manganese acetate metal salt with a molar ratio of 1:4 at 0.15 mol / L, adjust the pH to 5.0, and put it into the storage tank. The impregnating liquid was sent into the high-gravity rotating packing bed through a circulating pump, the liquid flow rate was 60 L / h, and the rotating speed was set at 800 rpm to make it fully contact with the carrier for impregnation, and the cycle impregnation time was 30 min. Then the hot air was passed for 60 min to take away the moisture on the surface of the catalyst and fix the active components. Take out the catalyst and bake it at 500℃ for 4 h to get Cu-Mn / γ-Al 2 o 3 catalyst.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More