Fractional oil selective hydro-de-diene method
A technology for removing dienes and distillate oils, which is applied in the direction of selective hydrotreating, etc., can solve the problems of poor effect of hydrogenation and dienes, and achieve the effect of improving the effect
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[0019] The preparation method of the catalyst comprises introducing molybdenum and / or tungsten and alkali metal components into the alumina carrier, and the method of introducing cobalt and / or nickel, molybdenum and / or tungsten and alkali metal components into the alumina carrier can be It is any known technique, for example, the commonly used method is to introduce the method of impregnating the carrier with a solution containing cobalt and / or nickel, molybdenum and / or tungsten and an alkali metal compound, wherein cobalt and / or selected from Group VIII Or nickel, molybdenum and / or tungsten of group VIB and alkali metals can be introduced into the alumina carrier simultaneously or separately.
[0020] The molybdenum-containing compound is selected from one or more of molybdenum-containing soluble compounds, such as one or more of molybdenum oxide, molybdate, paramolybdate, preferably molybdenum oxide and ammonium molybdate , Ammonium paramate.
[0021] The tungsten-containin...
example 1
[0031] This example illustrates catalysts suitable for use in the methods provided by the invention and methods for their preparation.
[0032] Weigh 800 grams of dry rubber powder produced by the Catalyst Factory of Changling Oil Refinery, extrude into a trefoil-shaped strip with a circumscribed circle diameter of 1.4 mm, dry at 120°C, and roast at 630°C for 3 hours in an air atmosphere to obtain 584 grams of carrier Z1.
[0033] Take by weighing 5.3 grams of cobalt nitrate, 7.2 grams of ammonium molybdate, and 5.5 grams of potassium hydroxide (82% KOH content, product of Beijing Chemical Reagent Factory, the same below), adopt 16% by weight of NH 3 The aqueous solution was dissolved to make 90 ml of co-immersion solution. 100 g of carrier Z1 was impregnated with this solution for 4 hours, then dried at 120° C. for 4 hours, and calcined at 420° C. for 4 hours to obtain catalyst C1. The contents of cobalt, molybdenum and potassium oxides in catalyst C1 are listed in Table 1. T...
example 2
[0041] This example illustrates catalysts suitable for use in the methods provided by the invention and methods for their preparation.
[0042] Weigh 4.8 grams of cobalt nitrate, 7.2 grams of ammonium molybdate, and 5.0 grams of potassium hydroxide, using 16% by weight of NH 3 The aqueous solution was dissolved to make 90 ml of co-immersion solution. Use this solution to impregnate 100 grams of carrier Z1 for 4 hours, dry at 120°C for 4 hours, and bake at 420°C for 4 hours. Calcined for 4 hours to obtain catalyst C2. The contents of cobalt, molybdenum and potassium oxides in catalyst C2 are listed in Table 1.
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