Individual activating process for catalysts in converting furnaces of CO (carbon oxide) sulfur-resistant converting device

A sulfur-resistant conversion and conversion furnace technology, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as long vulcanization time, high start-up costs, and large system pressure drop, and achieve reduction cost, improve production efficiency, and ensure the effect of activation effect

Active Publication Date: 2012-11-21
CHINA PETROCHEMICAL CORP +2
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Problems solved by technology

[0007] Due to the large number of shift furnaces and the large amount of catalyst loading in the carbon monoxide sulfur-tolerant shift process matched with the SHELL pulverized coal gasification process, if the traditional cycle vulcanization method is adopted, all the shift furnaces are connected in series and the temperature is raised for vulcanization at the same time, the pressure drop of the system will be large , the temperature rise of the bed layer should not be controlled, the vulcanization time is long, and the driving cost is high

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  • Individual activating process for catalysts in converting furnaces of CO (carbon oxide) sulfur-resistant converting device

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 1 As shown, the device used in the separate catalyst activation process in each shift furnace in the CO sulfur-tolerant shift device includes a pre-shift furnace 1 , a first shift furnace 2 , a second shift furnace 3 and a third shift furnace 4 in series. Wherein, the inlet of the pre-shift furnace 1 is connected to the vulcanization main pipe 5 , and the outlet of the third shift furnace is connected to the return main pipe 6 . A gas-liquid separation system 7 is provided on the return main pipe 6, and a three-way parallel pipeline is provided downstream of the gas-liquid separation system 7. One of them is connected to the downstream device 8 , one is connected to the atmosphere through the vent valve 9 , and one is connected to the inlet of the compressor 11 through the circulation line 10 . The outlet of the compres...

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Abstract

The invention relates to an individual activating process for catalysts in converting furnaces of a CO (carbon oxide) sulfur-resistant converting device. The activating process is characterized in that: a heating vulcanization line is arranged at an inlet of each of the converting furnaces, and an emptying line is arranged at an outlet of each of the converting furnace, so that after the catalyst in each converting furnace is changed, the converting furnace can be separated from a system, and then, the converting furnace can be heated and vulcanized individually. In comparison with the prior art, the individual activating process for the catalysts in the converting furnaces of the CO sulfur-resistant converting device, disclosed by the invention, effectively improves production efficiency and reduces activation cost of the catalysts; in addition, a supplement position of a vulcanizer is arranged at an outlet of a heater, so that the vulcanizer can be guaranteed to be vaporized sufficiently to be mixed with nitrogen sufficiently and uniformly, and further, the activation effect is guaranteed.

Description

technical field [0001] The invention relates to a process for individually activating catalysts in each shift furnace in a CO sulfur-resistant shift device matched with a SHELL pulverized coal gasification process. Background technique [0002] The carbon monoxide and sulfur-tolerant conversion processes matched with the SHELL pulverized coal gasification process mainly include high water-gas ratio technology, low water-gas ratio technology, and low water-gas ratio combined with high water-gas ratio technology. Since the CO content in the crude gas produced by the SHELL pulverized coal gasification process is as high as 60%~65%, if the crude gas is used to produce synthetic ammonia, since the CO content at the outlet of the conversion device is required to be controlled at about 0.4%, no matter which conversion device is selected Generally, at least 4 converter furnaces are required. [0003] The active components of the newly loaded carbon monoxide sulfur-tolerant shift ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/20
Inventor 吴艳波程雄志余攀汤海波
Owner CHINA PETROCHEMICAL CORP
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