Nano-array structured catalyst used for Fischer-Tropsch synthesis and preparation method and application thereof
A technology of structured catalysts and nano-arrays, which is applied in the preparation of physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, liquid hydrocarbon mixtures, etc. Uneven distribution, easy sintering and other problems, to avoid leaching loss, excellent mechanical strength, easy processability
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Embodiment 1
[0025] The galvanized iron substrate (108cm 2 ) with 0.5 mol L -1 Ultrasonic cleaning with hydrochloric acid for 10 minutes, then ultrasonic cleaning with absolute ethanol for 10 minutes, and then cleaning with deionized water to obtain a substrate for later use; dissolving ferric nitrate, ammonium fluoride and hexamethylenetetramine in deionized water to form a solution, wherein The concentration of iron ions is 0.1 mol L-1 , the concentration of ammonium fluoride is 0.2 mol L -1 , the concentration of hexamethylenetetramine is 0.1 mol L -1 Immerse the cleaned galvanized iron substrate obtained above into the obtained mixed solution, and heat it in a reaction kettle at 80°C for 24 hours, and cool it down to room temperature naturally after the reaction; the obtained substrate is washed with absolute ethanol and water to remove impurities, and heated at 40°C Dry in an oven for 6 hours; then bake in a muffle furnace at 300°C for 6 hours to obtain a nano-array structured catal...
Embodiment 2
[0027] The galvanized iron substrate (96cm 2 ) with 1 mol·L -1 Ultrasonic cleaning with hydrochloric acid for 8 minutes, then ultrasonic cleaning with absolute ethanol for 10 minutes, and then cleaning with deionized water to obtain a substrate for later use; dissolving ferric nitrate, sodium fluoride and urea in deionized water to form a solution, wherein the concentration of iron ions is 0.3 mol·L -1 , the concentration of sodium fluoride is 0.5 mol L -1 , the concentration of urea is 0.5 mol L -1 Immerse the cleaned galvanized iron substrate obtained above into the obtained mixed solution, and heat it in a reaction kettle at 100°C for 18 hours, and cool it down to room temperature naturally after the reaction; the obtained substrate is washed with absolute ethanol and water to remove impurities, and heated at 50°C Dry in an oven for 5 hours; then bake in a muffle furnace at 400°C for 2 hours to obtain a nano-array structured catalyst. The mass of the active component of ...
Embodiment 3
[0029] The stainless steel substrate (72 cm 2 ) with 1.5 mol L -1 Ultrasonic cleaning with hydrochloric acid for 7 minutes, then ultrasonic cleaning with absolute ethanol for 10 minutes, and then cleaning with deionized water to obtain a matrix for later use; dissolve ferric chloride, sodium thiocyanide and hexamethylenetetramine in deionized water to make a solution , where the concentration of iron ions is 0.2 mol L -1 , the concentration of sodium thiocyanate is 0.6 mol L -1 , the concentration of hexamethylenetetramine is 0.8 mol L -1 ; Immerse the cleaned stainless steel substrate obtained above into the obtained mixed solution, and heat it in a reaction kettle at 120°C for 12 hours, and cool it to room temperature naturally after the reaction; the obtained substrate is washed with absolute ethanol and water respectively to remove impurities, Dry in an oven for 4 hours; then bake in a muffle furnace at 350°C for 3 hours to obtain a nano-array structured catalyst. The m...
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