C4 component selective hydrogenation catalyst and preparation method thereof
A hydrogenation catalyst and selective technology, applied in the fields of hydrocarbons, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. -The yield of butene cannot be taken into account, etc., to achieve the effect of long life and convenient use
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[0013] a. Weigh 1000g CeCl 3 and 1000gZrCl 4 , prepare a 2L aqueous solution and an ammonia solution with a mass concentration of 0.35%, and co-precipitate to generate CeO 2 -ZrO 2 mixture, washed CeO 2 -ZrO 2 until the mixture is free of Cl - 1150g CeO was made by drying at 120°C for 5h 2 -ZrO 2 mixture;
[0014] b. Take 400gCeO 2 -ZrO 2 , 500gγAl 2 o 3 and 100g of attapulgite, mix them evenly with a mixer, and then extrude them into 1 / 8" bars with an extruder or make 1.7-2.5mm spherical particles with a sugar coating machine, and dry them after 24 hours of water mist curing. 2 The protection program heats up to 450°C and bakes to make a catalyst support carrier;
[0015] c. With 2.52gPdCl 2 , 1.02gRuCl 3 , 0.8gAgNO 3 , 2ml of concentrated hydrochloric acid with a mass concentration of 37%, and 200ml of deionized water are heated and dissolved to make a mixed solution;
[0016] d. Take 500g of the above-prepared catalyst support carrier, soak it in an equal vo...
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