Mathematical modeling of CH<sub>4</sub> elimination for BGL gasifier

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Abstract BGL gasification technology is promising in the nitrogen fertilizer industry. However, the syngas containing excessive CH₄ produced by the BGL gasification cannot satisfy the demand for the synthetic ammonia process. In this work, a second nozzle was set in the BGL gasifier to eliminate CH₄ via secondary combustion. Then, the effect of secondary combustion was analyzed based on the proposed BGL gasifier model. It was found that the CH₄ concentration was less than 1% and the char conversion was higher than 99% when the gasifying agent of the second nozzle was 25% of that of the first nozzle. The syngas with high H/C used for the synthetic ammonia process can be produced by increasing the steam proportion in the first nozzle.

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	Articles by authors
	ZHANG Quancong
	XUE Kang
	CAO Zhikai
	ZHOU Hua

Keywords： BGL gasifier secondary combustion mathematical modeling

Received 2022-08-01;

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ZHANG Quancong, XUE Kang, CAO Zhikai, ZHOU Hua.Mathematical modeling of CH₄ elimination for BGL gasifier[J] Chemcial Industry and Engineering, 2024,V41(1): 111-117

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