Conversions of fuel-N, volatile-N, and char-N to NO and N_2O during combustion of a single coal particle in O_2/N_2 and O_2/H_2O at low temperature

作     者：Yuan Li Hao Zhou Ning Li Runchao Qiu Kefa Cen 

作者机构：State Key Laboratory of Clean Energy Utilization Institute for Thermal Power Engineering Zhejiang University 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2018年第26卷第9期

页      面：1967-1977页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 0817[工学-化学工程与技术] 081701[工学-化学工程] 

基　　金：Supported by the National Basic Research Program of China(2015CB251501) the Innovative Research Groups of the National Natural Science Foundation of China(51621005) 

主　　题：NO N2O Single coal particle O2/N2 O2/H2O Low temperature 

摘      要：Oxy-steam combustion is a promising next-generation combustion *** of fuel-N,volatile-N,and char-N to NO and N2O during combustion of a single coal particle in O2/N2and O2/H2O were studied in a tube reactor at low *** O2/N2,NO reaches the maximum value in the devolatilization stage and N2O reaches the maximum value in the char combustion *** O2/H2O,both NO and N2O reach the maximum values in the char combustion *** total conversion ratios of fuel-N to NO and N2O in O2/N2are obviously higher than those in O2/H2O,due to the reduction of H2O on NO and *** changes the trade-off between NO and *** O2/N2and O2/H2O,the conversion ratios of fuel-N,volatile-N,and char-N to NO increase with increasing temperature,and those to N2O show the opposite *** conversion ratios of fuel-N,volatile-N,and char-N to NO reach the maximum values at 〈O2〉=30 vol%in O2/*** O2/H2O,the conversion ratios of fuel-N and char-N to NO reach the maximum values at 〈O2〉=30 vol%,and the conversion ratio of volatile-N to NO shows a slightly increasing trend with increasing oxygen *** conversion ratios of fuel-N,volatile-N,and char-N to N2O decrease with increasing oxygen concentration in both atmospheres.A higher coal rank has higher conversion ratios of fuel-N to NO and *** coal exhibits the highest conversion ratios of fuel-N,volatile-N,and char-N to NO and N2O in both *** work is to develop efficient ways to understand and control NO and N2O emissions for a clean and sustainable atmosphere.