Application of catalyst in Fischer-Tropsch synthesis reaction
A Fischer-Tropsch synthesis and catalyst technology, which is applied in the direction of catalysts, carbon compound catalysts, physical/chemical process catalysts, etc., can solve the problems affecting the dispersion of active components, reduction properties, and differences in catalytic performance, so as to improve activity and selectivity And the effects of stability, simple preparation method, good activity and selectivity
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Embodiment 1
[0036] 5.12g of cobalt nitrate, 13.2g of aluminum nitrate and 0.4856g of manganese nitrate were mixed and dissolved in 100ml of ethanol, and stirred at room temperature. After complete dissolution, add 50ml of propylene oxide, wait for the solution to form a gel, and dry it in a water bath at 80°C for 10 hours. Put the formed xerogel in an oven, dry at 90°C for 12h, then put it into a muffle furnace, raise the temperature to 750°C at a rate of 2°C / min, and keep it for 6h. The cobalt-aluminum spinel carrier is prepared.
[0037] Metal cobalt accounts for 15% (wt) of the weight of the final catalyst, and cobalt nitrate is weighed, and an equal volume of deionized water required for impregnation is added to dissolve. The spinel support is immersed in the solution. Leave it to age for 6 hours, then put it into an oven and dry it at 120°C for 6 hours. The dried catalyst was calcined at 550°C for 6h in a muffle furnace.
[0038] In a fixed-bed reactor, 1ml of freshly prepared ca...
Embodiment 2
[0040] 2.56g of cobalt nitrate, 13.2g of aluminum nitrate and 1.5g of manganese nitrate were mixed and dissolved in 80ml of ethanol, and stirred at room temperature. After complete dissolution, add 30ml of propylene oxide, wait for the solution to form a gel, and dry it in a water bath at 80°C for 10 hours. Put the formed xerogel in an oven, dry at 90°C for 12h, then put it into a muffle furnace, raise the temperature to 750°C at a rate of 2°C / min, and keep it for 6h. The cobalt-aluminum spinel carrier is prepared.
[0041] Metal cobalt accounts for 15% (wt) of the final catalyst weight, and Pd accounts for 0.05% of the final catalyst weight. Weigh cobalt nitrate and tetraammine palladium nitrate, add an equal volume of deionized water required for impregnation, and dissolve. The spinel support is immersed in the solution. Leave it to age for 6 hours, then put it into an oven and dry it at 120°C for 6 hours. The dried catalyst was calcined at 550°C for 6h in a muffle furnac...
Embodiment 3
[0044] 4.5g of cobalt nitrate, 14g of aluminum nitrate and 0.75g of manganese nitrate were mixed and dissolved in 150ml of ethanol, and stirred at room temperature. After complete dissolution, add 70ml of propylene oxide, wait for the solution to form a gel, and dry it in a water bath at 75°C for 5 hours. Put the formed xerogel in an oven, dry at 120°C for 10h, then put it into a muffle furnace, raise the temperature to 850°C at a rate of 2°C / min, and keep it for 4h. The cobalt-aluminum spinel carrier is prepared.
[0045] Metal cobalt accounts for 20% (wt) of the weight of the final catalyst, and cobalt nitrate is weighed, and an equal volume of deionized water required for impregnation is added to dissolve. The spinel support is immersed in the solution. Leave it to age for 6 hours, then put it into an oven and dry it at 120°C for 6 hours. The dried catalyst was calcined at 550°C for 6h in a muffle furnace.
[0046] In a fixed-bed reactor, 2ml of freshly prepared catalys...
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