A kind of method of Fischer-Tropsch synthesis
A technology for Fischer-Tropsch synthesis and synthesis gas, which is used in the preparation of liquid hydrocarbon mixtures, petroleum industry, etc., and can solve the problems of low CO conversion rate and C5+ selectivity.
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Embodiment 1
[0033] This embodiment is used to illustrate the Fischer-Tropsch synthesis method provided by the present invention.
[0034] (1) Preparation of Fischer-Tropsch synthesis catalyst:
[0035] 10% by weight of β-molecular sieve is mixed with 90% by weight of pseudo-boehmite (Sasol company C1 powder) and extruded with a circular orifice plate with a diameter of 1.4 mm, and then the extruded rod is dried at 120 ° C for 4 hours, and then calcined at 600°C for 4 hours to obtain a carrier. Next, an eggshell catalyst was prepared according to the method disclosed in Example 6 of CN101462079A to obtain a Fischer-Tropsch synthesis catalyst A. The content of the active metal component cobalt in the obtained Fischer-Tropsch synthesis catalyst determined by X-ray fluorescence method was 16% by weight. It can be observed with the naked eye that the active metal component is distributed in an eggshell on the Fischer-Tropsch synthesis catalyst (observed after crushing), and the thickness of ...
Embodiment 2
[0045] This embodiment is used to illustrate the Fischer-Tropsch synthesis method provided by the present invention.
[0046] (1) Preparation of Fischer-Tropsch synthesis catalyst:
[0047]30% by weight of ZSM-22 is mixed with 70% by weight of pseudo-boehmite powder (SB powder purchased from Sasol Company) and then extruded into a circular orifice with a diameter of 1.4 mm, then extruded in Dry at 120°C for 4 hours, and then bake at 600°C for 4 hours to obtain a carrier. Next, an eggshell catalyst was prepared according to the method disclosed in Example 6 of CN101462079A to obtain a Fischer-Tropsch synthesis catalyst B. The content of the active metal component cobalt in the obtained Fischer-Tropsch synthesis catalyst determined by X-ray fluorescence method was 16% by weight. It can be observed with the naked eye that the active metal component is distributed in an eggshell on the Fischer-Tropsch synthesis catalyst (observed after crushing), and the thickness of the shell d...
Embodiment 3
[0051] This embodiment is used to illustrate the Fischer-Tropsch synthesis method provided by the present invention.
[0052] (1) Preparation of Fischer-Tropsch synthesis catalyst:
[0053] 10% by weight of β-molecular sieve is mixed with 90% by weight of pseudo-boehmite (Sasol company C1 powder) and extruded with a circular orifice plate with a diameter of 1.4 mm, and then the extruded rod is dried at 120 ° C for 4 hours, and then calcined at 600°C for 4 hours to obtain a carrier. Next, an eggshell-type catalyst was prepared according to the method disclosed in Example 6 of CN101462079A, and the impregnation solution was replaced with ruthenium nitrate solution of the same concentration and volume to obtain Fischer-Tropsch synthesis catalyst C. The content of the active metal component ruthenium in the obtained Fischer-Tropsch synthesis catalyst determined by X-ray fluorescence method was 2% by weight. It can be observed with the naked eye that the active metal component is...
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