Catalyst and its preparation method and application as well as catalyst precursor reduction activation method and preparation method of α-olefin
A catalyst and olefin technology, which can be used in the preparation of liquid hydrocarbon mixtures, chemical instruments and methods, and hydrocarbon production from carbon oxides, etc. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0067] According to a fourth aspect of the present invention, the present invention provides a method for preparing a catalyst, the method comprising the following steps:
[0068] (1) Roasting the carrier loaded with the oxide of the Group VIII metal element and / or the precursor of the oxide of the Group VIII metal element and the compound containing the auxiliary element to obtain a catalyst precursor;
[0069] (2) Using the method described in the second aspect of the present invention to reductively activate the catalyst precursor.
[0070] The reductive activation method has been described in detail above, and will not be described in detail here, and only step (1) will be described in detail here. In the present invention, the term "precursor of an oxide of a Group VIII metal element" refers to a substance capable of forming a complete oxide of a Group VIII metal element under firing conditions.
[0071] According to the method described in the fourth aspect of the prese...
Embodiment 1
[0130] (1) Preparation of carrier
[0131] Take γ-Al 2 o 3 (Sasol product, its specific surface area, pore volume, average pore diameter and particle size distribution are as shown in table 1) 200g, roasted 2 hours in 980 ℃ of air atmospheres, the roasted product was carried out X-ray diffraction analysis (such as figure 1 shown), it is determined that the θ-Al 2 o 3 , its specific surface area, pore volume, average pore size and particle size distribution are shown in Table 1.
[0132] Dissolve zirconium nitrate pentahydrate in 43g deionized water to make a modified zirconium solution, add 100.0g of prepared θ-Al to the modified zirconium solution 2 o 3 , saturated impregnation at 25°C for 2 hours. Then, the impregnated mixture was placed in an oven, and dried in an air atmosphere at 120° C. and normal pressure (1 standard atmospheric pressure, the same below) for 5 hours. The dried material was calcined in an air atmosphere at 400° C. for 3 hours to obtain a carrier. ...
Embodiment 2
[0142] Adopt the same method as in Example 1 to prepare the catalyst and prepare α-olefins, the difference is that in step (1), γ-Al 2 o 3 Instead of roasting, the modified zirconium solution is directly used for saturation impregnation to prepare a carrier, wherein, based on the total amount of the carrier, the content of Zr is 5% by weight in terms of elements.
PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More