Energy-saving catalyst for phenylethylene dehydrogenation
A technology of ethylbenzene dehydrogenation and catalyst, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, hydrocarbons, etc., can solve the problems of poor activity, achieve high activity, improve electronic The effect of transferability
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[0026] [Example 1]
[0027] Combine 350.0 grams of iron oxide red, 160.0 grams of iron oxide yellow, 62.0 grams of potassium carbonate, 92.3 grams of cerium nitrate, 13.8 grams of ammonium tungstate, 3.0 grams of magnesium oxide, 5.0 grams of tellurium dioxide, 3.0 grams of boron oxide, 0.2 grams of nickel oxide, Mix 5.0 grams of cement and 16.0 grams of sodium carboxymethyl cellulose in a kneader for 1 hour, add deionized water, and mix for another half an hour. Take out the extruded bar and squeeze it into granules with a diameter of 3 mm and a length of 5-8 mm. In an oven, bake at 80°C for 2 hours and 120°C for 2 hours, then place in a muffle furnace and calcinate at 900°C for 4 hours to obtain the finished catalyst.
[0028] Load 100 ml of catalyst into the reactor, at normal pressure and liquid space velocity for 1.0 hour -1 The activity evaluation was carried out under the conditions of, 600°C and 580°C, and the water ratio (water / ethylbenzene) (weight) of 2.0. The test resu...
Example Embodiment
[0029] [Example 2]
[0030] The catalyst was prepared according to the method of Example 1, except that 300.0 grams of iron oxide red, 150.0 grams of iron oxide yellow, 82.0 grams of potassium carbonate, 40.0 grams of cerium oxide, 4.0 grams of tungsten oxide, 5.0 grams of magnesium oxide, and 10.0 grams of dioxide were used. Tellurium, 6.0 grams of tin oxide, 2.0 grams of zirconia, 8.0 grams of kaolin and 15.0 grams of graphite.
[0031] The activity evaluation was carried out according to the evaluation conditions of Example 1, and the test results are listed in Table 1.
Example Embodiment
[0032] [Example 3]
[0033] The catalyst was prepared according to the method of Example 1, except that 280.0 grams of iron oxide red, 138.0 grams of iron oxide yellow, 70.0 grams of potassium carbonate, 52.0 grams of cerium oxide, 8.0 grams of tungsten oxide, 10.0 grams of magnesium oxide, and 20.0 grams of dioxide Tellurium, 10.0 grams of tin oxide, 1.2 grams of copper oxide, 1.3 grams of zirconia, 15.0 grams of cement, and 18.0 grams of sodium carboxymethyl cellulose.
[0034] The activity evaluation was carried out according to the evaluation conditions of Example 1, and the test results are listed in Table 1.
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