Partial conversion system for carbonic oxide and process control method thereof

A carbon monoxide and conversion furnace technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of not meeting the requirements of the post-system, scaling, and low CO conversion rate, so as to avoid scaling The effect of the phenomenon
CN102992264AActive Publication Date: 2013-03-27INNER MONGOLIA YITAI CTO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNER MONGOLIA YITAI CTO
Publication Date
2013-03-27

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Abstract

The invention discloses a partial conversion system for carbonic oxide and a process control method thereof. The system comprises a converted gas-liquid separator, two pre-converting furnaces which are connected in parallel, a converting furnace, a purified gas heater, a feed gas heater and an auxiliary feed gas heater. The process control method of partial conversion of carbonic oxide comprises the following steps: (1) diversion of the feed gas which is separated by the converted gas-liquid separator; (2) removal of carbon dust in the pre-converting furnaces; (3) diversion and heat exchange of feed gas to complete partial conversion of carbonic oxide; and (4) diversion of gas after mixing. The system and the method have the following advantages: maintenance of the feed gas heater can be completed on line, thus the continuous operation of the device is not affected; at the later stage of the operation of converting catalyst, the inlet gas temperature of the converting furnace can be increased by virtue of the auxiliary feed gas heater, thus the long-period steady operation of the device can be realized.
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Description

Technical field:

[0001] The invention relates to a carbon monoxide conversion system and a process control method thereof, in particular to a carbon monoxide partial conversion system and a process control method thereof. Background technique:

[0002] The carbon monoxide shift process is under the action of a catalyst, and at a certain temperature (higher than the initial activity temperature of the catalyst), CO and water vapor react to convert CO into hydrogen and carbon dioxide. Its function is to provide the post-system with H that meets the process requirements. 2 / CO ratio.

[0003] The main task of the carbon monoxide conversion device is to partially convert CO into H 2 , to meet the hydrogen-carbon ratio required by the post-system, due to the H in the crude syngas 2 The ratio of / CO is high, in order to effectively control the synthesis gas H of the carbon monoxide shift unit 2 / CO ratio, the shift device adopts a partial shift process, and about 1 / 3 of the cr...

Claims

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