Supported catalyst, application of supported catalyst and Fischer-Tropsch synthesis reaction method
A supported catalyst and catalyst technology, which is applied in the direction of chemical instruments and methods, physical/chemical process catalysts, heterogeneous catalyst chemical elements, etc., can solve the problems of catalyst cost increase and high price, and is conducive to industrialization promotion, catalysis Effects of improved activity and improved wear resistance
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Embodiment 1
[0054] This example is used to illustrate the catalyst provided by the present invention and its preparation method and application.
[0055] (1) Preparation of carrier
[0056] Dissolve 11g of phosphoric acid in 70g of water, add 120g of γ-alumina (Sasol product, average particle size 60 microns) and stir uniformly for 5min to obtain the impregnation solution, place the impregnation solution in a rotary evaporator, evaporate to dryness at 60°C and filter, the filter cake Dry in an oven at 140°C for 2 hours; dissolve 15.9g of tetraethyl orthosilicate in ethanol, then add to the γ-alumina that has been impregnated with phosphorus and dried, rotate and evaporate in the same way, filter, and put the filter cake Dry in an oven at 140°C for 3 hours and then bake in a muffle furnace at 800°C for 4 hours. A modified carrier Z1 was obtained, wherein, based on the total amount of the modified carrier Z1 and calculated as elements, the content of P in the modified carrier Z1 was 2.85% ...
Embodiment 2
[0090] (1) Preparation of carrier
[0091] Prepare modified alumina according to the method of Example 1, the difference is that the amount of P and Si is changed to obtain modified carrier Z2, based on the total amount of modified carrier Z2 and in terms of elements, the modified carrier made The content of P in Z2 is 2.85% by weight, the content of Si is 5.7% by weight, and the weight ratio of Si / P is 2. The physical properties of the modified carrier Z2 are shown in Table 1.
[0092] (2) Preparation of catalyst
[0093] The catalyst was prepared according to the method of Example 1, except that the modified support Z1 was replaced by the above-mentioned support Z2 to obtain catalyst C2. Based on the total amount of catalyst C2 and in terms of elements, the composition of catalyst C2 is 20wt%Co-2.5wt%Zr-0.015wt%Pt / 2.85wt%P-5.7wt%Si-Al 2 o 3 .
[0094] (3) Fischer-Tropsch synthesis reaction
[0095] Catalyst C2 was evaluated according to the same method and conditions as...
Embodiment 3
[0097] (1) Preparation of carrier
[0098] Prepare modified alumina according to the method of Example 1, the difference is that the composition of P and Si is changed to obtain modified carrier Z3, and the modified carrier Z3 is based on the total amount of modified carrier Z3 and calculated by element. The P content in the carrier Z3 is 2.85% by weight, the Si content is 8.55% by weight, and the weight ratio of Si / P is 3. The physical properties of the modified carrier Z3 are shown in Table 1.
[0099] (2) Preparation of catalyst
[0100] The catalyst was prepared according to the method of Example 1, except that the modified support Z1 was replaced by the above-mentioned support Z3 to obtain catalyst C3. Based on the total amount of catalyst C3 and in terms of elements, the composition of catalyst C3 is 20wt%Co-2.5wt%Zr-0.015wt%Pt / 2.85wt%P-8.55wt%Si-Al 2 o 3 .
[0101] (3) Fischer-Tropsch synthesis reaction
[0102] Catalyst C3 was evaluated according to the same metho...
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