Preparation and application of Pt QDs-CeO2/Co modified Y-type molecular sieve hydrogenation catalyst
A hydrogenation catalyst and molecular sieve technology, applied in the direction of molecular sieve catalyst, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve the problems of poor catalytic effect and high cost, and achieve the goal of reducing price, increasing activity and reducing electron density. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] (1) Preparation of catalyst
[0028] Step 1: Add NaY-type molecular sieves to deionized water, sonicate for 20 minutes at room temperature, and then add Co(NO 3 ) 2 ·6H 2 O, continue to stir for 3h, filter after stirring and place the filtered product in a 100% water vapor atmosphere at a temperature of 570°C for 2h, then use NH 4 The Cl solution was exchanged and washed for 6 times, and then placed in a muffle furnace for calcination at 400 °C for 3 h; then the calcined sample was placed in EDTA-2Na solution, stirred vigorously in a water bath at 85 °C for 5 h, after the stirring was completed, it was filtered and used The filtered product was washed with deionized water until neutral, and then the product was dried in a vacuum oven at 100°C for 12 hours to obtain a Co-modified Y-type molecular sieve. Among them, Co(NO 3 ) 2 ·6H 2 The consumption ratio of O and NaY type molecular sieve is 0.32g:1g, and the consumption ratio of NaY type molecular sieve and EDTA-2N...
Embodiment 2
[0034] (1) Preparation of catalyst
[0035] Step 1: Add NaY molecular sieves into deionized water, sonicate for 30 minutes at room temperature, and then add Co(NO 3 ) 2 ·6H 2 O, continue to stir for 4h, filter after the stirring is over and place the filtered product in a 100% water vapor atmosphere at a temperature of 570°C for 3h, then filter the molecular sieve with NH 4 The Cl solution was exchanged and washed 7 times, and then placed in a muffle furnace for calcination at 400 °C for 4 h; then the calcined sample was placed in EDTA-2Na solution, stirred vigorously in a water bath at 90 °C for 5 h, filtered after the stirring was completed, and used The filtered product was washed with deionized water until neutral, and then the product was dried in a vacuum oven at 92°C for 14 hours to obtain a Co-modified Y-type molecular sieve. Among them, Co(NO 3 ) 2 ·6H 2 The consumption ratio of O and NaY type molecular sieve is 0.46g:1g, and the consumption ratio of NaY type mo...
Embodiment 3
[0041] (1) Preparation of catalyst
[0042] Step 1: Add NaY molecular sieves into deionized water, sonicate for 25 minutes at room temperature, and then add Co(NO 3 ) 2 ·6H 2 O, continue to stir for 4h, filter after the stirring is over and place the filtered product in a 100% water vapor atmosphere at a temperature of 570°C for 3h, then filter the molecular sieve with NH 4 The Cl solution was exchanged and washed 8 times, and then placed in a muffle furnace for calcination at 400 °C for 3 h; then the calcined sample was placed in EDTA-2Na solution, stirred vigorously in a water bath at 86 °C for 4 h, filtered and used The filtered product was washed with deionized water until neutral, and then the product was dried in a vacuum oven at 96°C for 15 hours to obtain a Co-modified Y-type molecular sieve. Among them, Co(NO 3 ) 2 ·6H 2 The consumption ratio of O and NaY type molecular sieve is 0.42g:1g, and the consumption ratio of NaY type molecular sieve and EDTA-2Na solutio...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More