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Method for baking industrial iron base catalyzer through Fischer-Tropsch synthesis from plasma phase

An iron-based catalyst and Fischer-Tropsch synthesis technology, which is applied in chemical instruments and methods, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problems such as the wear and tear of the catalyst CO conversion rate activity data, and achieve superiority Reactive properties, improved wear resistance, and low damage rate

Active Publication Date: 2006-06-21
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The patent does not give specific data on the CO conversion rate activity of the catalyst during the slurry bed Fischer-Tropsch synthesis operation and the wear after the reaction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Spherical industrial Fe / Cu / K / SiO prepared by combining continuous coprecipitation and spray drying 2 Catalyst is laid flat on the material conveyor belt of the 10m long three-stage swirling airflow belt dryer with a conveying hopper, and the thickness of the catalyst is adjusted to 40 mm with the flashboard on the material conveyor belt. Adjust the hot air inlet temperature in the heating section of the belt dryer to 200°C, the hot air temperature in the constant temperature section of the roasting section to 380°C, and the exhaust air outlet temperature in the cooling section to 120°C. Adjust the transmission speed of the three-stage material conveyor belt to 0.2 m / h, 0.8 m / h and 0.25 m / h respectively, and the residence time of the catalyst in the heating section of the belt dryer, the roasting constant temperature section and the cooling section are respectively 10 hours, 7.5 hours and 8 hours. After the catalyst passes through the cooling section, it is separated fr...

Embodiment 2

[0028] According to embodiment 1 step Fe / Mn / K / SiO 2 The thickness of the catalyst on the material conveyor belt is adjusted to 50mm. Adjust the hot air inlet temperature in the heating section of the belt dryer to 220°C, the hot air temperature in the constant temperature section of the roasting to 400°C, and the exhaust air outlet temperature in the cooling section to 120°C. Adjust the transmission speed of the three-stage material conveyor belt to 0.2 m / h, 1.0 m / h and 0.4 m / h respectively, and the residence time of the catalyst in the heating section of the belt dryer, the roasting constant temperature section and the cooling section are respectively 10 hours, 6 hours and 5 hours. After the catalyst passes through the cooling section, it is separated from the material conveyor belt of the dryer, and the fresh catalyst that has been roasted and directly used for industrial slurry phase Fischer-Tropsch synthesis is obtained. The main structural and performance indicators of ...

Embodiment 3

[0030] According to embodiment 1 step Fe / Cu / La / K / SiO 2 The thickness of the catalyst on the material conveyor belt is adjusted to 60mm. Adjust the hot air inlet temperature in the heating section of the belt dryer to 250°C, the hot air temperature in the constant temperature section of the roasting section to 450°C, and the exhaust air outlet temperature in the cooling section to 160°C. Adjust the transmission speed of the three-stage material conveyor belt to 0.2 m / h, 1.0 m / h and 0.4 m / h respectively, and the residence time of the catalyst in the heating section of the belt dryer, the roasting constant temperature section and the cooling section are respectively 10 hours, 6 hours and 5 hours. After the catalyst passes through the cooling section, it is separated from the material conveyor belt of the dryer, and the fresh catalyst that has been roasted and directly used for industrial slurry phase Fischer-Tropsch synthesis is obtained. The main structural and performance ind...

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Abstract

A slurry phase Fischer-Tropsch synthesis industrial iron-based catalyst roasting method is to combine the continuous co-precipitation and spray drying method to prepare the industrial large-particle spherical iron-based catalyst with a thickness of 20-100 mm, which is tiled on the swirling airflow belt drying method. On the material conveyor belt of the dryer, adjust the inlet temperature of the heating section of the dryer to 200-300°C, and stay for 5-10 hours; After 4 to 8 hours, a catalyst that has been roasted and can be directly used for industrial slurry phase Fischer-Tropsch synthesis without sieving is obtained. The attrition index of the catalyst after calcination of the present invention is less than 0.5%. The invention has the advantages of continuous drying of large batches of materials, easy operation, less failure and less equipment investment.

Description

technical field [0001] The invention relates to a roasting method for Fischer-Tropsch synthesis industrial iron-based catalysts, in particular to a method for a slurry-phase Fischer-Tropsch synthesis industrial large particle spherical iron-based catalyst with excellent Fischer-Tropsch synthesis reaction performance and strong wear resistance roasting method. Background technique [0002] Fischer-Tropsch synthesis refers to the synthesis gas (CO+H 2 ) The process of reacting to generate hydrocarbons under the action of a catalyst. Iron-based catalysts are very important for low H 2 / CO ratio (molar ratio 0.5-1.2) Fischer-Tropsch synthesis catalyst for coal-based synthesis gas synthesis liquid fuel. Iron-based catalysts have good water gas shift reaction activity and low H 2 / CO ratio coal-based synthesis gas does not need to be transformed in advance and directly enters the slurry phase reactor for Fischer-Tropsch synthesis reaction, cheap and easy to obtain, and has bee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/745B01J37/08C07C1/04
Inventor 白亮郝庆兰王洪田磊相宏伟李永旺
Owner SYNFUELS CHINA TECH CO LTD
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