Hydrogenation catalyst and preparation method thereof
A hydrogenation catalyst and hydrogenation activity technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of small catalyst pore size, deactivation, catalyst capacity The metal ability has not been fully utilized and other problems, to achieve the effect of high demetallization rate, hydrogenation demetallization and metal capacity improvement
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0012] The present invention provides a method for preparing a hydrogenation catalyst, the method comprising shaping the alumina precursor, drying, calcining, and introducing at least one metal selected from Group VIII and at least one metal selected from Group VIB, wherein, The alumina precursor has a pore volume of 0.8-1.5 ml / g and a pore diameter of 8-40 nm. The calcination condition is 1-6 hours at a temperature of 800-1200° C.
[0013] Under preferred conditions, the calcination condition is 2-4 hours at a temperature of 900-1100°C.
[0014] The precursor of alumina is preferably hydrated alumina. The hydrated alumina is preferably one or more of alumina trihydrate, alumina monohydrate and amorphous aluminum hydroxide. According to the present invention, precursors of alumina which meet the requirements are commercially available.
[0015] According to the method provided by the present invention, molding can be carried out by conventional methods, such as tableting, ba...
Embodiment 1
[0026] 300 grams of pseudo-boehmite dry rubber powder (Changling Catalyst Factory produces PB110) and 10 grams of fenugreek powder are mixed homogeneously, and at room temperature this mixture and the concentration of 360 milliliters are 1% nitric acid aqueous solution, mix homogeneously, After continuing to knead on a twin-screw extruder to form a plastic body, extrude into a trilobal strip of ф1.5mm, dry the wet strip at 120°C for 4 hours, and then calcinate at 1000°C for 3 hours to obtain the carrier Z1. The specific surface area, pore volume and pore size distribution of Z1 were measured, and the results are shown in Table 2.
[0027] The specific surface area, pore volume and pore size distribution of the carrier were measured by BET low temperature nitrogen adsorption method.
Embodiment 2
[0029] Mix 300 grams of pseudo-boehmite dry rubber powder (PB120 produced by Changling Catalyst Factory) and 10 grams of asparagus powder, add 360 milliliters of nitric acid aqueous solution with a concentration of 1%, mix well, and continue kneading on the twin-screw extruder After being plasticized, it was extruded into a butterfly-shaped strip of ф1.1mm, and the wet strip was dried at 120°C for 2 hours, and then calcined at 950°C for 2 hours to obtain the carrier Z3. The specific surface, pore volume and pore size distribution of Z3 were determined in the same manner as in Example 1, and the results are shown in Table 2.
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More