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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

Inactive Publication Date: 2012-10-03
INFRA XTL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, the catalyst and its preparation method have the following main disadvantages: high cost due to the high content of expensive components; The preparation method is difficult to implement

Method used

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  • Catalyst for synthesis of hydrocarbons from CO and H2 and preparation method thereof
  • Catalyst for synthesis of hydrocarbons from CO and H2 and preparation method thereof

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preparation example Construction

[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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Abstract

The present invention relates to petrochemistry, gas chemistry, coal chemistry, particularly the invention relates to a catalyst for synthesis of hydrocarbons from CO and H2 and a preparation method thereof. The catalyst is pelletized and comprises at least Raney cobalt as active component in an amount of 1-40% by weight based on the total weight of the catalyst, metallic aluminium in an amount of 25-94% by weight based on the total weight of the catalyst and a binder in an amount of 5-30% by weight based on the total weight of the catalyst. The present invention provides the catalyst stability to overheating and high productivity of hydrocarbons C5-C100 for synthesis of hydrocarbons from CO and H2.

Description

technical field [0001] The present invention relates to petrochemistry, gas chemistry and coal chemistry. In particular, the present invention relates to a method for catalyzing CO and H 2 Synthetic C 5 ~C 100 Catalysts for hydrocarbons, and methods for their preparation. Background technique [0002] The production of hydrocarbons from synthesis gases such as carbon monoxide and hydrogen (Fischer-Tropsch process) is well known. Suitable Fisher-Tropsch catalysts include a metal selected from Group VIII of the Mendeleev Periodic Table. With different catalyst components, the obtained products are also different. [0003] The Fisher-Tropsch reaction is highly exothermic and temperature sensitive. High temperature can improve catalytic activity, but reduces the selectivity to main products due to the formation of by-products such as methane and carbon dioxide. In order to develop new, efficient and selective catalysts, new solvents are needed to provide exothermic stabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J25/00B01J23/78B01J23/86B01J23/89B01J29/06B01J37/02B01J37/04C07C1/04C10G2/00
CPCB01J37/0205C10G2300/70B01J23/78B01J37/0221B01J23/83C10G2/333B01J29/06B01J23/8896B01J29/084B01J23/75B01J25/00B01J23/864B01J23/8913B01J37/04C10G2/332B01J37/0009
Inventor 弗拉基米尔·扎尔曼诺维奇·莫尔德科维奇莉莉亚·瓦迪莫娃·西内娃伊戈尔·格里戈里耶维奇·所罗门尼克瓦季姆·谢尔盖耶维奇·叶尔莫拉耶夫爱德华·鲍里索维奇·米特伯格
Owner INFRA XTL TECH
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