Catalyst for synthesis of hydrocarbons from CO and H2 and preparation method thereof
一种催化剂、合成烃的技术,应用在烃的催化剂,及其制备领域,能够解决制备方法难以实施、组分含量高、高成本等问题
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[0038] The inventors successfully prepared for the first time a catalyst for CO and H 2 Synthetic hydrocarbons, especially C 5 ~C 100 Catalysts of hydrocarbons having the above-mentioned advantages and none of the disadvantages mentioned.
[0039] In the catalyst, due to the compounding of Raney cobalt and metal aluminum as active components, it becomes a reality.
[0040] The inventor's research shows that only when the uniform paste containing Raney cobalt disperse particles, metal aluminum and binder is extruded, a three-dimensional thermally conductive frame with metal aluminum embedded in Raney cobalt disperse particles can be prepared. particles. This structure of the catalyst provides a high thermal conductivity and on the other hand enables the use of less active metals. Therefore, Raney cobalt has two roles: active component of the catalyst and component of the three-dimensional thermally conductive framework.
[0041] It is important that the active metals are not...
Embodiment 1
[0071] The catalyst sample contains 10% Raney cobalt+70% aluminum (Al)+20% boehmite, the preparation method is as follows:
[0072] 0.5g boehmite, 1.75g PAP-2 grade aluminum powder and 0.25g Raney cobalt powder were added to the 3 (64%), 2.5 ml distilled water and 0.15 ml triethylene glycol (TEG) in the liquid phase, stirring continuously until a homogeneous mixture is obtained. The mixture was then extruded using a die with a diameter of 2.5 mm. The granules are dried in a drying oven. The physical condition of drying is 25-120°C for 20 hours. The dried particles were then calcined in a calciner under the following conditions: under air atmosphere, the temperature was raised from 120°C to 190°C at a heating rate of 35°C / h, from 190°C to 250°C at a heating rate of 15°C / h, h Heating rate The temperature is raised to 250-450°C, and the particles are calcined at 450°C for 5 hours. The pellets were then cooled to room temperature and cut into 2.5 mm slices.
Embodiment 2
[0074] The catalyst sample contains 20% Raney cobalt+70% aluminum (Al)+10% boehmite, the preparation method is as follows:
[0075] 0.25g boehmite, 1.75g PAP-2 grade aluminum powder and 0.5g Raney cobalt powder were added to the 3 (64%), 2ml distilled water and 0.15ml triethylene glycol (TEG) in the liquid phase. Stirring is continued until a homogeneous mixture is obtained. The mixture was then extruded using a die with a diameter of 2.5 mm. The obtained granules were dried, calcined, cooled and chipped as described in Example 1.
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