A catalyst for cleaning CO as well as its preparing method and application
A catalyst and fluoride technology, applied in the field of CO scavenging catalysts and its preparation, can solve the problems of poor selectivity of noble metal catalysts, scarce price of precious metal resources, narrow activity temperature range, etc., to achieve reduced energy consumption, high economic value, and simplified production The effect of craft
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0041] Weigh 21.7 g Ce(NO 3 ) 2 , Dissolved in 50ml of aqueous solution. Weigh 1.8 grams of Al 2 o 3 Powder, evenly drop Ce(NO 3 ) 2 Aqueous solution 1.2ml, left for 24 hours overnight, dried at 70°C for 10 hours, shaken during drying. After drying, crush it, pass through a 40-mesh sieve, and put it into a muffle furnace for roasting at 300°C for 3 hours. Take out and pulverize, pass through a 40-mesh sieve, and set aside. Weigh 21.7 g of PdCl 2 , make a 50ml solution in dilute HCl, evenly drop 1.74ml into the prepared powder, leave it for 24 hours overnight, dry at 70°C for 10 hours, and shake during the drying process. After drying, crush it, pass through a 20-mesh sieve, and put it into a muffle furnace for roasting at 300°C for 3 hours. Take out and pulverize, and pass through a 20-mesh sieve. In the U-shaped glass tube, the two ends are blocked with glass wool, and the H 2 Reduction for 1 hour, and in H 2 gradually cooled to room temperature. Catalyst activit...
Embodiment 2
[0043] The catalyst preparation steps are basically the same as in Example 1. Weigh 1.4 g Al 2 o 3 Powder, evenly drop Ce(NO 3 ) 2Aqueous solution 3.5ml, left for 24 hours overnight, dried at 120°C for 10 hours, shaking during drying. After drying, crush it, pass through a 40-mesh sieve, and put it into a muffle furnace for roasting at 500°C for 3 hours. Take out and pulverize, pass through a 40-mesh sieve, and set aside. Evenly add 1.74ml PdCl dropwise 2 Add the hydrochloric acid solution to the prepared powder, place it overnight for 24 hours, and dry it at 120°C for 10 hours, shaking it during the drying process. After drying, crush it, pass through a 20-mesh sieve, and put it into a muffle furnace for roasting at 500°C for 3 hours. Take out and pulverize, and pass through a 20-mesh sieve. In the U-shaped glass tube, the two ends are blocked with glass wool, and the H 2 Reduction for 1 hour, and in H 2 gradually cooled to room temperature. Catalyst activities are...
Embodiment 3
[0045] The catalyst preparation steps are basically the same as in Example 1. Weigh 1.6 grams of Al 2 o 3 Powder, evenly drop Ce(NO 3 ) 2 Aqueous solution 2.3ml, left overnight for 24 hours, dried at 70°C for 10 hours, shaking during drying. After drying, crush it, pass through a 40-mesh sieve, and put it into a muffle furnace for roasting at 500°C for 3 hours. Take out and pulverize, pass through a 40-mesh sieve, and set aside. Evenly add 3.5ml PdCl 2 The hydrochloric acid solution was added to the prepared powder, placed overnight for 24 hours, dried at 70°C for 10 hours, and shaken during the drying process. After drying, crush it, pass through a 20-mesh sieve, and put it into a muffle furnace for roasting at 500°C for 3 hours. Take out and pulverize, and pass through a 20-mesh sieve. In the U-shaped glass tube, the two ends are blocked with glass wool, and the H 2 Reduction for 1 hour, and in H 2 gradually cooled to room temperature. Catalyst activities are list...
PUM
| Property | Measurement | Unit |
|---|---|---|
| pulverization | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More