Method for making Fischer-Tropsch synthetic reaction stable
A Fischer-Tropsch synthesis and reaction technology, which is applied in the preparation of liquid hydrocarbon mixtures and the petroleum industry, can solve the problems of excessive adjustment of operating conditions and large fluctuations in operating conditions, so as to reduce the bed temperature difference, promote stable operation, reduce The effect of the risk of overheating
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Embodiment 1
[0041] Weigh 500g γ-Al 2 o 3 Carrier (product of Changling Catalyst Factory, particle size 16-26 mesh), the carrier was placed in a muffle furnace and calcined at 600° C. for 3 hours.
[0042] Weigh the above γ-Al 2 o 3 30 grams of carrier, 5.5 grams of cobalt nitrate was dissolved into 8.1 ml of solution, the solution was sprayed on the carrier by spraying method under agitation, then baked in an oven at 120°C for 4 hours, and then placed in a muffle furnace Calcining at 500° C. for 4 hours, repeating this operation twice to obtain Fischer-Tropsch synthesis catalyst A.
[0043] Fischer-Tropsch synthesis catalyst A is activated under pure hydrogen atmosphere, activation conditions: temperature 400°C, pressure 0.5MPa, gas hourly space velocity 500h -1 , time 24 hours.
[0044] After the catalyst is activated, when the temperature drops to 212 °C, first introduce N 2 Substitution is carried out until the H in the system 2 The mass fraction is 2 Volume fraction in the mixt...
Embodiment 2
[0052] Weigh 500g γ-Al 2 o 3 Carrier (product of Changling Catalyst Factory, particle size 16-26 mesh), the carrier was placed in a muffle furnace and calcined at 600° C. for 3 hours.
[0053] Weigh the above γ-Al 2 o 3 30 grams of carrier, 5.5 grams of cobalt nitrate was dissolved into 8.1 ml of solution, the solution was sprayed on the carrier by spraying method under agitation, then baked in an oven at 120°C for 4 hours, and then placed in a muffle furnace Roasting at 500° C. for 4 hours, and repeating this operation three times to obtain Fischer-Tropsch synthesis catalyst B.
[0054] Fischer-Tropsch synthesis catalyst B is activated under pure hydrogen atmosphere, activation conditions: temperature 400°C, pressure 0.5MPa, gas hourly space velocity 500h -1 , time 24 hours.
[0055] After Fischer-Tropsch synthesis catalyst B is activated, when the temperature drops to 218°C, first introduce N 2 Substitution is carried out until the H in the system 2The mass fraction i...
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