Catalyst for isobutane dehydrogenation production of isobutylene
A dehydrogenation catalyst and a technology for producing isobutene, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as low activity and poor stability
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Embodiment 1
[0025] Weigh 9.31g of alumina carrier and pour it into 200mL of deionized water and stir for 1 hour, weigh 1.637g of aluminum nitrate and 0.649g of zinc nitrate and dissolve them in 50mL of deionized water respectively, then mix the two evenly, pour alumina and water After continuing to stir for 1 hour, ammonia water was slowly added dropwise under continuous stirring until the pH was 8.5. Aging the product for 2 hours, filtering and washing with 2L of water to obtain a filter cake, drying the filter cake at 90°C for 16 hours, and then roasting it in a muffle furnace at 580°C for 20 hours to obtain ZnAl 2 o 4 -Al 2 o 3 carrier. Weigh 0.190g of stannous chloride and dissolve it in 10mL of hydrochloric acid solution, add it to the above-mentioned carrier under stirring, mix well, soak at 30°C for 12 hours, and then dry at 90°C for 16 hours to obtain the catalyst precursor, which is recorded as I. Weigh 0.159g of chloroplatinic acid, 0.295g of calcium nitrate and 0.207g of po...
Embodiment 2
[0027] Weigh 9.70g of alumina carrier and pour it into 200mL of deionized water and stir for 1 hour, weigh 0.041g of aluminum nitrate and 0.017g of zinc nitrate and dissolve them in 50mL of deionized water respectively, then mix the two evenly, pour alumina and water After continuing to stir for 1 hour, ammonia water was slowly added dropwise under continuous stirring until the pH was 8.5. Aging the product for 2 hours, filtering and washing with 2L of water to obtain a filter cake, drying the filter cake at 90°C for 16 hours, and then roasting it in a muffle furnace at 580°C for 20 hours to obtain ZnAl 2 o 4 -Al 2 o 3 carrier. Weigh 0.295g of tin tetrachloride and dissolve it in 10mL of hydrochloric acid solution, add it to the above-mentioned carrier under stirring, mix evenly, impregnate at 10°C for 24 hours, and then dry at 90°C for 16 hours to obtain the catalyst precursor, which is recorded as I. Weigh 0.159g of chloroplatinic acid, 0.295g of calcium nitrate and 0.20...
Embodiment 3
[0029] Weigh 8.71g of alumina carrier and pour it into 200mL of deionized water and stir for 1 hour, weigh 4.093g of aluminum nitrate and 1.623g of zinc nitrate and dissolve them in 50mL of deionized water respectively, then mix the two evenly, pour alumina and water After continuing to stir for 1 hour, ammonia water was slowly added dropwise under continuous stirring until the pH was 8.5. Aging the product for 2 hours, filtering and washing with 2L of water to obtain a filter cake, drying the filter cake at 90°C for 16 hours, and then roasting it in a muffle furnace at 580°C for 20 hours to obtain ZnAl 2 o 4 -Al 2 o 3 carrier. Weigh 0.190g of stannous chloride and dissolve it in 10mL of hydrochloric acid solution, add it to the above-mentioned carrier under stirring, mix well, soak at 80°C for 1 hour, and then dry at 90°C for 16 hours to obtain the catalyst precursor, which is designated as I. Weigh 0.159g of chloroplatinic acid, 0.295g of calcium nitrate and 0.207g of po...
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