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Carbon deposit-prevented hydrocarbon steam reformer

A reforming furnace and steam technology, applied in the direction of inorganic chemistry, chemical instruments and methods, non-metallic elements, etc., can solve problems such as carbon formation, achieve the effects of prolonging service life, alleviating the tendency of carbon formation, and avoiding carbon deposition

Active Publication Date: 2016-01-13
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the above conversion reactions, there is a risk of carbon formation during the reaction process, and carbon formation is very serious at the most intense part of the reaction

Method used

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  • Carbon deposit-prevented hydrocarbon steam reformer
  • Carbon deposit-prevented hydrocarbon steam reformer
  • Carbon deposit-prevented hydrocarbon steam reformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 As shown, it includes a reformer furnace tube 3, a catalyst bed 2 is provided inside the reformer furnace tube 3, a material inlet 5 is provided on the upper part of the reformer furnace tube 3, a conduit 6 is provided on the top wall of the reformer furnace tube 3, and the conduit 6 Set on the outside of the thermocouple temperature measuring tube 7, one end of the conduit 6 is located inside the catalyst bed 2, the conduit 6 at one end inside the catalyst bed 2 is closed, the other end of the conduit 6 is located outside the reformer tube 3, and is located in the reformer tube 3 The outer conduit 6 is connected to the water pump or the steam pipeline 1, and the conduit 6 located inside the catalyst bed 2 is uniformly provided with small holes 4 at 1 / 2-1 / 3 of the catalyst bed 2 from top to bottom.

[0020] When in use, the catalyst (preferably a hydrocarbon steam reforming catalyst) is packed in the catalyst bed 2, and the conduit 6 penetrates into the...

Embodiment 2

[0022] Such as figure 2 As shown, the reformer furnace tube 3 is included, the inside of the reformer furnace tube 3 is provided with a catalyst bed 2, the upper part of the reformer furnace tube 3 is provided with a material inlet 5, the wall of the reformer furnace tube 3 top is provided with a conduit 6, and the conduit One end of 6 is located inside the catalyst bed 2, the conduit 6 located at one end inside the catalyst bed 2 is closed, the other end of the conduit 6 is located outside the furnace tube 3 of the reformer, and the conduit 6 located outside the furnace tube 3 of the reformer is connected to the water pump or steam pipeline 1 , the conduit 6 located inside the catalyst bed 2 is uniformly arranged with small holes 4 at 1 / 2-1 / 3 from top to bottom.

[0023] When in use, the catalyst (preferably a hydrocarbon steam reforming catalyst) is packed in the catalyst bed 2, and the conduit 6 penetrates into the catalyst bed 2 from top to bottom. The conduit 6 located ...

Embodiment 3

[0025] Such as image 3 As shown, it includes a reformer furnace tube 3, a catalyst bed 2 is provided inside the reformer furnace tube 3, a material inlet 5 is provided on the upper part of the reformer furnace tube 3, and a conduit 6 is provided on the wall on one side of the upper part of the reformer furnace tube 3 , one end of the conduit 6 is located inside the catalyst bed 2, the conduit 6 at one end inside the catalyst bed 2 is closed, the other end of the conduit 6 is located outside the furnace tube 3 of the reformer, and the conduit 6 outside the furnace tube 3 of the reformer is connected to the water pump or steam pipeline 1 connection, the conduit 6 located inside the catalyst bed 2 is evenly arranged with small holes 4 from the top to the bottom 1 / 2-1 / 3.

[0026] When in use, the catalyst (preferably a hydrocarbon steam reforming catalyst) is packed in the catalyst bed 2, and the conduit 6 penetrates into the catalyst bed 2 from top to bottom. The conduit 6 loca...

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Abstract

The invention relates to reformers and particularly relates to a carbon deposit-prevented hydrocarbon steam reformer. The hydrocarbon steam reformer comprises a reformer furnace tube, wherein a catalyst bed layer is arranged inside the reformer furnace tube, a material inlet is formed in the upper part of the reformer furnace tube, a guide pipe is arranged at the top or a wall of one side of the upper part of the reformer furnace tube, one end of the guide pipe is located inside the catalyst bed layer, the end, located inside the catalyst bed layer, of the guide pipe is closed, the other end of the guide pipe is located outside the reformer furnace tube, the guide pipe located outside the reformer furnace tube is connected with a water pump or steam pipeline, and small holes are formed in the guide pipe located inside the catalyst bed layer in a uniformly-distributed manner. According to the carbon deposit-prevented hydrocarbon steam reformer, water vapor can be additionally supplemented during reaction, so that the phenomenon of carbon deposition of the catalyst bed layer is eliminated or avoided, and the service life of a catalyst is prolonged.

Description

technical field [0001] The invention relates to a reformer, in particular to an anti-coking hydrocarbon steam reformer. Background technique [0002] Conventional hydrocarbon steam reformers use reforming catalysts of different sizes and shapes, and these catalyst particles are packed in reformer tubes to form a fixed catalyst bed. The conversion raw materials are hydrocarbons, and the conversion products are generally composed of hydrogen, carbon monoxide, carbon dioxide, water and unreacted methane or carbon two or more components. [0003] For some hydrocarbon steam reforming technologies, such as ultra-low water-to-carbon ratio conversion, the reaction water-to-carbon ratio may only be 0.5-1.5; there are also methane-carbon dioxide reforming technologies that have been reported in recent research, and no water is added or only water is added during the reaction process. little water. For the above conversion reaction, there is a risk of carbon formation during the reac...

Claims

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Application Information

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IPC IPC(8): C01B3/38
Inventor 王昊梁卫忠薛红霞姜建波白志敏赵庆鲁齐焕东宋晓军余汉涛
Owner CHINA PETROLEUM & CHEM CORP