燃烧
烧焦
流化床燃烧
氮氧化物
化学链燃烧
流化床
氮气
化学
氮氧化物
废物管理
化学工程
有机化学
工程类
作者
Zhiqiang Gong,Tuo Zhou,Lu Qi,Yongjie Na,Yuan Sun
出处
期刊:Energy & Fuels
[American Chemical Society]
日期:2016-01-11
卷期号:30 (1): 31-38
被引量:39
标识
DOI:10.1021/acs.energyfuels.5b01749
摘要
Combustion and NOx emission characteristics of Shenmu char have been investigated in a circulating fluidized bed test platform composed of a circulating fluidized bed and a post-combustion chamber. The effect of the combustion temperature in the circulating fluidized bed furnace and arrangement of post-combustion air were examined on the post-combustion of Shenmu char. NOx emission is below 100 mg/m3 in all post-combustion experiments. The effect of the temperature in the circulating fluidized bed furnace or post-combustion chamber on NOx emission is not obvious. When the post-combustion air injection position moves upstream, NOx emission decreases. In a reducing atmosphere, most fuel nitrogen is converted to N2. NOx is mainly formed from the reaction of residual N in the char contained in fly ash and O2 from post-combustion air in the post-combustion chamber. Nitrogen in char is gradually released and converted during combustion and not instantaneously.
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