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Chemcial Industry and Engineering 2022, Vol. 39 Issue (1) :75-82    DOI: 10.13353/j.issn.1004.9533.20210309
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Experimental study on the influencing factors of NO formation during biomass combustion
WANG Zhaowen, LIU Haize, QIU Kunzan, CEN Kefa, ZHOU Hao
Zhejiang University, State Key Laboratory of Clean Energy Utilization, Hangzhou 310027, China

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Abstract Taking rice husk, wood chips, bagasse and straw of four kinds of typical biomass particles as the research objects, the effects of biomass type, temperature, O2 concentration and atmosphere on NO production were studied in a self-designed cruciform tube furnace. The results showed that the amount of fuel-N was greater, NO emissions were also higher to be 0.984 8 mg·g-1 while the conversion ratio of fuel-N to NO declined only by 7.18%. The total amount of NO release increased with increasing temperature but different biomass particles have different increasing proportion. Improving the oxygen volume fraction, the total amount of NO release also increased, the maximum value of which is more than 0.26%. In the O2/N2 atmosphere, almost no CO was released because the whole reaction process was carried out in an oxidizing atmosphere due to the high concentration of oxygen. In O2/N2 atmosphere, the total amount of NO release and the conversion ratio of fuel-N to NO were much higher than those in O2/CO2 atmosphere.
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WANG Zhaowen
LIU Haize
QIU Kunzan
CEN Kefa
ZHOU Hao
Keywordsbiomass combustion;   cross tube furnace;   NO conversion;   NO conversion rate of fuel N     
Received 2021-03-08;
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WANG Zhaowen, LIU Haize, QIU Kunzan, CEN Kefa, ZHOU Hao.Experimental study on the influencing factors of NO formation during biomass combustion[J]  Chemcial Industry and Engineering, 2022,V39(1): 75-82
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