Aromatic hydrocarbon hydrogenation catalyst and its preparation method
An aromatic hydrocarbon hydrogenation and catalyst technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of low aromatic hydrocarbon hydrogenation activity, etc. Effects of hydrogen reactivity, shortened preparation process, and simplified operation
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Embodiment 1
[0021] Weigh 84.75g of basic nickel carbonate powder, add 1.0mol L -1 36.0mL of boric acid solution, then add 1.0mol·L -1 64.0mL of ammonium metatungstate solution, and mix the above materials evenly. Dry the mixed material at 100°C for 5 hours, and then roast the material at 350°C for 5 hours. The calcined material is pressed into tablets to obtain the catalyst, which consists of (based on the weight of the catalyst): NiO=75.6%, B 2 o 3 = 1.9%, WO 3 = 22.5%. Catalyst A has an average pore diameter of 5.30nm and a pore volume of 0.278ml·g -1 , the specific surface area is 242m 2 g -1 . Its composition and properties are shown in Table 1.
[0022] The activity evaluation experiment of catalyst hydrogenation reaction adopts flow type differential reactor-gas chromatography device as the activity evaluation device. The reaction raw material is containing 120mg·L -1 Carbon disulfide in ethylbenzene liquid. The catalyst was first reduced at 400°C for 3 hours under a hyd...
Embodiment 2
[0026] The preparation steps are as in Example 1. Weigh 84.75 g of basic nickel carbonate and add 1.0 mol L -1 144.0mL of boric acid solution, then add 1.0mol·L -1 107.0mL of ammonium metatungstate solution, mixed evenly, dried at 100°C for 5h, and then roasted at 450°C for 3h. The catalyst was obtained by tablet molding, and its composition and properties are shown in Table 1.
[0027] The activity evaluation of the catalyst is the same as in Example 1, and the results are shown in Table 2.
Embodiment 3
[0029] The preparation steps are as in Example 1. Weigh 84.75 g of basic nickel carbonate and add 1.0 mol L -1 108.0mL of boric acid solution, and then add 27.90g of ammonium paratungstate powder, mix well and bake at 450°C for 5h. Tablet 1 obtained Catalyst C, its composition and properties.
[0030] The activity evaluation of the catalyst is the same as in Example 1, and the results are shown in Table 2.
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