Dehydrogenation catalyst for feed gas containing carbon monoxide, preparation method and application method thereof
A dehydrogenation catalyst, carbon monoxide technology, applied in the direction of carbon monoxide, metal/metal oxide/metal hydroxide catalyst, chemical instruments and methods, etc., can solve problems such as spontaneous combustion, and achieve good selectivity
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Embodiment 1
[0024] Dissolve 5 grams of magnesium nitrate and 6 grams of zinc nitrate in 70 grams of water, then pour it into a beaker with 100 grams of alumina carrier, dry it after dipping, and roast it at 450 ° C for 2 hours, then put the carrier after roasting Add 70 g of a mixed solution made of 0.6 g of palladium chloride and 0.3 g of chloroplatinic acid for impregnation and adsorption, and roast at 480° C. to obtain a carbon monoxide feed gas dehydrogenation catalyst.
[0025] The catalyst uses 10% hydrogen containing H 2 -N 2 The mixed gas is reduced at 550°C for 8 hours, cooled to 180°C, and carbon monoxide gas source is introduced, and the space velocity is 3000h -1 , can convert 97%CO+1.6%H 2 +0.3%N 2 +1.1%O 2 The hydrogen in the tank is removed to 10ppm, the dehydrogenation rate is 99.94%, the outlet oxygen is 0.08%, and the loss of carbon monoxide is 0.44%.
Embodiment 2
[0027] Dissolve 15 grams of ammonium molybdate and 10 grams of ammonium paratungstate in 65 grams of 50% ammonia water, then pour it into a beaker with 100 grams of alumina carrier, dry it after dipping, and roast it at 550 ° C for 2 hours, and then put the roasted The carrier is put into 70 grams of palladium acetate solution for impregnation and adsorption, and the solution contains 3.3 grams of palladium acetate. After calcination at 550°C, the carbon monoxide raw material gas deoxidation catalyst can be prepared.
[0028] The catalyst uses hydrogen containing 30% H 2 -N 2 Mixed gas is reduced at 650°C for 8 hours, then cooled to 200°C, and carbon monoxide gas source is introduced, and the space velocity is 3000h -1 , can convert 37%CO+1.5%H 2 +60.5%N 2 +1%O 2 The hydrogen in the tank is removed to 30ppm, the dehydrogenation rate is 99.80%, the outlet oxygen is 0.1%, and the loss of carbon monoxide is 0.3%.
Embodiment 3
[0030] Dissolve 2 grams of butyl titanate in 80 grams of alcohol, then pour it into a beaker with 100 grams of alumina carrier, dry it after impregnation, and roast it at 600 ° C for 2 hours. Put the carrier after roasting into 4 grams 70 grams of solution prepared by zirconium tetrachloride is impregnated, dried after impregnation and roasted at 500°C for 2 hours, then the carrier after roasting is put into 75 grams of solution prepared with 2 grams of palladium chloride for impregnation and adsorption, and carbon monoxide is obtained after roasting at 550°C Feed gas dehydrogenation catalyst.
[0031] The catalyst uses 60% H 2 -N 2 Mixed gas is reduced at 450°C for 8 hours, then cooled to 230°C, and carbon monoxide gas source is introduced, and the space velocity is 2000h -1 , can convert 67%CO+3%H 2 +27.25%N 2 +1.75%O 2 The hydrogen in the tank is removed to 10ppm, the dehydrogenation rate is 99.93%, the outlet oxygen is 0.1%, and the loss of carbon monoxide is 0.3%.
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