Cobalt-based Fischer-Tropsch synthetic catalyst as well as preparation method and application thereof

A technology for synthesis of catalysts and tropos, which is applied in the direction of chemical instruments and methods, preparation of liquid hydrocarbon mixtures, physical/chemical process catalysts, etc., to achieve the effects of high strength and wear resistance, stable structure and high stability

Active Publication Date: 2013-03-13
中科潞安能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The introduction of microwave technology in the preparation process of Fischer-Tropsch synthesis catalysts and supports has not been reported yet.

Method used

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  • Cobalt-based Fischer-Tropsch synthetic catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032]Prepare a certain amount of 1mol / L aluminum sulfate aqueous solution, and add the hydrolysis agent ammonia water into the solution at 0.2mol / L, keep the temperature at 70°C under the microwave power of 2000W, and keep the time for 90min, then press the sol agent and aluminum source Add peptizer HNO at a molar ratio of 0.01:1 3 , stirred and refluxed to a transparent sol, kept in a water bath for 3 hours, and aged at room temperature for 12 hours to obtain a gel. The gel was dried in a microwave drying oven at 120°C for 1 hour, and then the dried gel was placed in a microwave temperature-programmed oven at a heating rate of 0.5°C / min and calcined at 350°C for 10 hours to obtain a catalyst carrier.

[0033] Weigh Co(NO 3 ) 2 ·6H 2 O, NH 4 VO 3 and RuCl 3 ·3H 2 O, measure deionized water according to the equal-volume impregnation method, prepare a mixed salt solution and impregnate the above-mentioned carrier for 5 hours, then dry at 100°C for 6 hours, and finally ba...

Embodiment 2

[0036] Prepare a certain amount of 0.1mol / L aluminum isopropoxide aqueous solution, and add the hydrolysis agent HCl into the solution at 0.01mol / L, keep the temperature at 75°C under the microwave power of 20W, and keep the time for 90min, then press the sol agent Add the peptizer HNO at a molar ratio of 0.05:1 to the aluminum source 3 , stirred and refluxed at a microwave power of 200W until a transparent sol was maintained for 3h, and then aged at room temperature for 12h to obtain a gel. The gel was dried in a drying oven at 100°C for 6 hours, and then the dried gel was placed in a temperature-programmed furnace at a heating rate of 1°C / min and calcined at 350°C for 10 hours to obtain a catalyst carrier.

[0037] Weigh Co(NO 3 ) 2 ·6H 2 O, Cu(NO 3 ) 2 ·3H 2 O and RuCl 3 ·3H 2 O, take deionized water according to the equal-volume impregnation method, prepare a mixed salt solution and impregnate it on the above-mentioned carrier for 5 hours, then dry it at 100°C for ...

Embodiment 3

[0040] Prepare a certain amount of 0.5mol / L sodium aluminate aqueous solution, and add the hydrolyzing agent ammonia water into the solution at 0.15mol / L, keep the temperature at 65°C, and keep the time for 60min. 0.1:1 add peptizer HNO 3 , stirred and refluxed until a transparent sol was maintained for 3 hours, and then aged at room temperature for 12 hours to obtain a gel. The gel was dried in a drying oven at 105°C for 6 hours, then the dry gel was placed in a temperature-programmed microwave oven at a heating rate of 2°C / min, and calcined at 350°C for 10 hours to obtain a catalyst carrier.

[0041] Weigh Co(NO 3 ) 2 ·6H 2 O, LaCl 3 ·7H 2 O and IrCl 3 ·3H 2 O, measure deionized water according to the equal-volume impregnation method, prepare a mixed salt solution and impregnate the above carrier for 5 h, then dry at 100 °C for 6 h, and finally roast at 250 °C for 15 h, with a heating rate of 3 °C / min, the catalyst was prepared. The final catalyst weight is Co 3 o...

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Abstract

The invention discloses a cobalt-based Fischer-Tropsch synthetic catalyst which comprises the following components by weight: 15-30% of cobaltosic oxide, 0.5-15% of oxide of non-noble metal in transitional metal, 0.01-2% of noble metal oxide and the balance of carrier gamma-Al2O3. The cobalt-based Fischer-Tropsch synthetic catalyst has the advantages of high activity and stability, and can be used for the Fischer-Tropsch synthetic reaction in slurry reactors and static beds.

Description

technical field [0001] The invention relates to a Fischer-Tropsch synthesis catalyst and its preparation method and application, in particular to a cobalt-based Fischer-Tropsch synthesis catalyst, its preparation method and its application. Background technique [0002] With the development of the world economy, the contradiction between the demand for oil resources and the reserves and distribution has become increasingly prominent. Obtaining liquid refined oil fuels through new methods is a major problem facing China and the world at present. The Fischer-Tropsch synthesis reaction can produce high-quality clean fuels (especially high-quality diesel) and other high-value-added chemicals on a large scale, and its raw material synthesis gas (CO and H 2 ) has a wide range of sources and can be obtained from coal, natural gas, and biomass through gasification, which is suitable for my country's current energy situation of rich coal and poor oil. The catalysts used in the Fisch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01J23/889C10G2/00
Inventor 李德宝贾丽涛刘岩陈从标侯博
Owner 中科潞安能源技术有限公司
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