Catalyst for selective hydrogenation of diolefin
A hydrogenation catalyst and catalyst technology are applied in the field of diolefin selective hydrogenation catalysts, which can solve the problems of low activity and achieve the effect of improving the activity.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0018] The preparation method of the catalyst provided by the present invention comprises, under the conditions sufficient to deposit molybdenum and / or tungsten, cobalt and / or nickel and alkali metal on the alumina support, the alumina support is mixed with molybdenum and / or tungsten, Cobalt and / or nickel compounds and / or solutions containing alkali metal compounds are contacted, for example by impregnation, co-precipitation, etc., preferably impregnation. Wherein, molybdenum and / or tungsten, cobalt and / or nickel and alkali metal can be introduced into the alumina support simultaneously or separately.
[0019] 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 paramolybdate.
[0020] The tungsten-containing compound is selected from one or more of tungsten-containing soluble compounds, such as...
example 1
[0030] This example illustrates the catalyst provided by the invention and its preparation method.
[0031] 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.
[0032] 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 3The 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. The content of cobalt, molybdenum an...
example 2
[0040] This example illustrates the catalyst provided by the invention and its preparation method.
[0041] 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.
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More