A kind of preparation method of synthesis gas conversion catalyst
A synthesis gas conversion and catalyst technology, which is applied in the preparation of liquid hydrocarbon mixtures, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of complex preparation process, simplify the preparation process, improve stability, and avoid pollution. Effect
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example 1
[0021] Weigh commercially available silica gel (the pore volume is 1.06ml / g, the specific surface area is 386.81m 2 / g, the silica gel used in the following examples) 30g, distilled water was added dropwise to initial moistening, and the volume of consumed water was 48ml. Based on the final catalyst zirconium content of 1wt%, weigh 1.41g of zirconium nitrate trihydrate, add distilled water to 48g, wait for complete dissolution, add carrier silica gel to impregnate, age for 3 hours, dry at 150°C for 8 hours, and roast at 600°C for 10 Hour. According to the final catalyst cobalt content of 5wt%, weigh 7.41g of cobalt nitrate hexahydrate, add distilled water to 48g, wait until it is completely dissolved, add it to the above-mentioned sample impregnated with zirconium, age for 3 hours, and directly seal and roast at 280°C for 10 hours. The resulting catalyst was designated CFT-1.
[0022] Catalyst evaluation test In a high-pressure continuous stirred tank reactor, paraffin was u...
example 2
[0024] Weigh 30g of commercially available silica gel, add distilled water dropwise until initial moistening, and the volume of consumed water is 48ml. Based on the final catalyst zirconium content of 3wt%, weigh 4.23g of zirconium nitrate trihydrate, add distilled water to 48g, wait for complete dissolution, add carrier silica gel to impregnate, age for 3 hours, dry at 100°C for 10 hours, and roast at 900°C for 2 Hour. According to the final catalyst cobalt content of 35wt%, weigh 25.94 cobalt nitrate hexahydrate, add distilled water to 48g, add to the above-mentioned zirconium-impregnated sample after it is completely dissolved, and directly seal and roast at 600°C for 2 hours after aging for 3 hours. The resulting catalyst is designated CFT-2. The experimental conditions for catalyst activity evaluation are the same as in Example 1. The results of Fischer-Tropsch synthesis reaction over CFT-2 catalyst are shown in Table 1.
example 3
[0026] Weigh 30g of commercially available silica gel, add distilled water dropwise until initial moistening, and the volume of consumed water is 48ml. Based on the final catalyst zirconium content of 2wt%, weigh 2.82g of zirconium nitrate trihydrate, add distilled water to 48g, wait for complete dissolution, add carrier silica gel to impregnate, age for 3 hours, dry at 150°C for 24 hours, and roast at 800°C for 4 hours. Hour. According to the final catalyst cobalt content of 20wt%, weigh 29.64g of cobalt nitrate hexahydrate, add distilled water to 48g, wait until it is completely dissolved, add it to the above-mentioned sample impregnated with zirconium, age for 3 hours, and directly seal and roast at 350°C for 4 hours. The resulting catalyst is designated CFT-3. The experimental conditions for catalyst activity evaluation are the same as in Example 1. The results of the Fischer-Tropsch synthesis reaction over the CFT-3 catalyst are shown in Table 1.
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