Method for fast preparing dimethyl ether steam reforming hydrogen production catalyst by virtue of alternate microwave
A technology for reforming hydrogen production and dimethyl ether, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of high catalyst selectivity, dimethyl ether The problems of low conversion rate and low catalyst activity can achieve the effect of short preparation time, stable catalytic performance and high reaction activity.
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Embodiment 1
[0024] Weigh 3.1976g Cu(NO 3 ) 2 ﹒ 3H 2 O was prepared into an aqueous solution with a concentration of 1.97 mol / L, and 6.0749 g of alumina powder was mixed with the above solution, ultrasonicated at 50°C for 15 minutes, and then heated alternately by microwave with a microwave power of 2 kW. The specific heating method was heating for 5 seconds and stopping for 5 seconds. Repeat the alternating heating 10 times, dry at 110°C, and calcinate at 400°C for 5 hours to obtain the catalyst Cu / γ-Al 2 O 3 , Its composition molar ratio is 1:4.5.
Embodiment 2
[0026] Weigh 3.1976g Cu(NO 3 ) 2 ﹒ 3H 2 O, 2.6735g Fe(NO 3 ) 3 ﹒ 9H 2 O was prepared into a mixed aqueous solution with a Cu+M concentration of 2.55mol / L, 6.0749g of alumina powder was mixed with the above solution, and ultrasonically dispersed at 50°C for 15 minutes, and then alternately heated by microwave with a microwave power of 2kW, and the specific heating method was heating for 5 seconds , Stop for 5 seconds, repeat alternate heating 10 times, dry at 110°C, and calcinate at 400°C for 5 hours to obtain the catalyst Cu / Fe / γ-Al 2 O 3 , Its composition molar ratio is 2:1:9.
Embodiment 3
[0028] Weigh 3.1976g Cu(NO 3 ) 2 ﹒ 3H 2 O, 2.6735g Fe(NO 3 ) 3 ﹒ 9H 2 O was prepared into a mixed aqueous solution with a Cu+M concentration of 2.55mol / L, 6.0749g of alumina powder was mixed with the above solution, and ultrasonically dispersed at 50°C for 15 minutes, and then alternately heated by microwave with a microwave power of 2kW, and the specific heating method was heating for 5 seconds , Stop for 5 seconds, repeat alternate heating 10 times, and dry at 110°C to obtain the catalyst Cu / Fe / γ-Al 2 O 3 , Its composition molar ratio is 2:1:9.
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