Fe molecular sieve composite catalyst and preparation method thereof
A composite catalyst and molecular sieve technology, applied in molecular sieve catalysts, catalyst activation/preparation, separation methods, etc., can solve the problems of catalyst carbon deposition and deactivation, achieve good catalyst activity, improve anti-carbon deposition performance, and inhibit adsorption and deposition. effect of carbon
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Embodiment 1
[0023] A kind of Fe molecular sieve composite catalyst, comprises following component:
[0024] The content of the active component Fe is 2.5wt.%, the content of the catalyst carrier Beta is 82.5wt.%, and the mordenite is 15wt.%.
[0025] A preparation method of Fe molecular sieve composite catalyst, comprising the steps of:
[0026] 1. Measure 300mL of deionized water, add 5g of H-Beta molecular sieve with a Si / Al molar ratio of 12.5, stir on a magnetic stirrer for 30min at room temperature of 30°C, and then add 5g of FeCl according to the stoichiometric ratio 2 , stirred at room temperature for 24 hours, and carried out ion exchange;
[0027] 2. Wash and filter with 5 times deionized water to remove Cl ions in the solution, and dry the obtained filter cake in an oven at 110°C for 15 hours;
[0028] 3. Roast the dried filter cake in a muffle furnace at 600°C for 5 hours to obtain Fe / Beta molecular sieve catalysts, which are respectively recorded as Fe / ZSM-5, Fe / Beta, Fe / ZSM...
Embodiment 2
[0033] An Fe molecular sieve composite catalyst comprises the following components: the active component Fe is 3wt.%, the catalyst carrier Beta is 77wt.%, and the mordenite is 20wt.%.
[0034] A preparation method of Fe molecular sieve composite catalyst, comprising the steps of:
[0035] 1. Measure 350mL of deionized water, add 8g of H-Beta molecular sieve with a Si / Al molar ratio of 15, stir on a magnetic stirrer for 40min at room temperature of 30°C, and then add 4g of FeCl according to the stoichiometric ratio 2 , stirred at room temperature for 28 hours, and carried out ion exchange;
[0036] 2. Wash and filter with 6 times deionized water to remove Cl ions in the solution, and dry the obtained filter cake in an oven at 110°C for 15 hours;
[0037] 3. Calcining the dried filter cake in a muffle furnace at 600°C for 3 hours to obtain a Fe / Beta molecular sieve catalyst;
[0038] 4. Put the Fe / Beta molecular sieve catalyst obtained above into 80mL of water, add 2.5g of pre...
Embodiment 3
[0042] A kind of Fe molecular sieve composite catalyst, comprises following component:
[0043] The active component Fe is 5wt.%, the catalyst carrier Beta is 70wt.%, and the mordenite is 25wt.%.
[0044] A preparation method of Fe molecular sieve composite catalyst, comprising the steps of:
[0045] 1. Measure 250mL of deionized water, add 10g of H-Beta molecular sieve with a Si / Al molar ratio of 15, stir on a magnetic stirrer for 35min at room temperature of 30°C, and then add 2g of FeCl according to the stoichiometric ratio 2 , stirred at room temperature for 30 hours, and carried out ion exchange;
[0046] Second, wash and filter with 5 times deionized water to remove Cl ions in the solution, and dry the obtained filter cake in an oven at 110°C for 18 hours;
[0047] 3. Calcining the dried filter cake in a muffle furnace at 600°C for 4 hours to obtain a Fe / Beta molecular sieve catalyst;
[0048] 4. Put the Fe / Beta molecular sieve catalyst obtained above into 100mL of wa...
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