Catalyst for preparing hydrogen from coke-oven gas in oxygen-permeable membrane reactor and preparation method thereof
A technology of coke oven gas and catalyst, applied in the field of catalyst and its preparation, which can solve the problems of increasing the production cost of products, and achieve the effects of simple operation, high conversion rate and good selectivity
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Embodiment 1
[0024] Active component Ru mass percentage content is 2%, auxiliary component Li, Ce mass percentage content are respectively 1% and 4% preparation of catalyst sample:
[0025] Weigh 17.46g Co(NO 3 ) 2 ·6H 2 O was dissolved in deionized water, stirred evenly to make a solution, 5.6g MgO was added to the solution, stirred evenly, soaked overnight for 24 hours, fried to dry, the mixture was placed in an oven, dried at 110°C for 24 hours, and then heated at 5°C Raise the temperature to 500°C for 2 hours at a rate of 1 minute, then continue to heat up to 900°C for 5 hours at the same rate, and finally crush the obtained solid into powder, and take the powder within the range of 100-200 mesh as the catalyst carrier. This carrier is Co 0.3 Mg 0.7 O, spare.
[0026] Weigh 0.497g LiNO 3 , 0.620g Ce(NO 3 ) 3 ·6H 2 O, 0.27g RuCl 3 Dissolve in deionized water, then add 4.65g of the carrier prepared by the above method, stir well, soak overnight for 24 hours, fry to dry, then dr...
Embodiment 2
[0028] Active component Ni mass percent content is 10%, auxiliary component Li, Ce mass percent content are respectively 1% and 4% preparation of catalyst sample:
[0029] First, the powder carrier was prepared in exactly the same manner as in Example 1 above.
[0030] Weigh 0.497g LiNO 3 , 0.620g Ce(NO 3 ) 3 ·6H 2 O, 2.467g Ni(NO 3 ) 2 ·6H 2 Dissolve O in deionized water, then add 4.25g of the carrier prepared by the above method, stir well, soak overnight for 24 hours, fry to dry, then dry in an oven at 110°C for 12 hours, and then heat up at a rate of 15°C per minute Roast at 500°C for 2 hours, then continue to heat up to 900°C for 5 hours at the same heating rate, grind the baked powder evenly, use a mold with a diameter of 1.5cm, under a pressure of 45kN (keep the pressure for 1 minute) ) into shape, finally pulverize and sieve it, and take the range of 20-40 mesh as the catalyst. The catalyst is LiCeNi / Co 0.3 Mg 0.7 O, wherein the mass percentages of Li, Ce, an...
Embodiment 3
[0032] Active component Ni mass percentage content is 10%, auxiliary component Li, La mass percentage content are respectively 1% and 4% preparation of catalyst sample:
[0033] First, the powder carrier was prepared in exactly the same manner as in Example 1 above.
[0034] Weigh 0.497g LiNO 3 , 0.632g La(NO 3 ) 3 ·6H 2 O, 2.467g Ni(NO 3 ) 2 ·6H 2 Dissolve O in deionized water, then add 4.25g of the carrier prepared by the above method, stir well, soak overnight for 24 hours, fry to dry, then dry in an oven at 110°C for 24 hours, and then heat up at a rate of 5°C per minute Roast at 500°C for 2 hours, then continue to heat up to 900°C for 5 hours at the same heating rate, grind the baked powder evenly, use a mold with a diameter of 1.5cm, under a pressure of 45kN (keep the pressure for 1 minute) ) into shape, finally pulverize and sieve it, and take the range of 20-40 mesh as the catalyst. The catalyst is LiLaNi / Co 0.3 Mg 0.7 O, wherein the mass percentages of Li, La,...
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