纳米碳氢燃料燃烧及NOx排放特性研究  

Research on the Combustion and NOx Emission Characteristics of Nano Hydrocarbon Fuel

作　　者：甄鹏 闫淑君 张乐 刘涛[2] 黄庠永 Zhen Peng;Yan Shujun;Zhang Le;Liu Tao;Huang Xiangyong(Haerwusu Open-pit Coal Mine of Guoneng Zhunneng Group,Ordos 017000;Anhui University of Science and Technology,Huainan 232001;Anhui University of Technology,Maanshan 243000,China)

机构地区：[1]国能准能集团哈尔乌素露天煤矿,内蒙古鄂尔多斯017000 [2]安徽理工大学,安徽淮南232001 [3]安徽工业大学,安徽马鞍山243000

出　　处：《广东化工》2023年第23期24-28,共5页Guangdong Chemical Industry

基　　金：纳米碳氢燃料性能调控与燃烧机理研究项目(HX2022072824)。

摘　　要：纳米碳氢燃料是由煤、水和少量添加剂经纳米化处理工艺制成的一种颗粒粒度为纳米级、具有较高表面活性的液态煤基特种燃料。本研究通过单液滴燃烧装置、雾化燃烧实验对纳米碳氢燃料和常规水煤浆的燃烧特性进行了研究,考察了着火温度、雾化燃烧特性的区别。结果表明:纳米碳氢燃料1000℃和800℃着火点分别降低了47.6℃和74.4℃,着火延迟时间较常规水煤浆缩短。纳米碳氢燃料燃烧过程的沿程O_(2)浓度比常规水煤浆的要低3%~-6%,燃尽率比常规水煤浆高20%左右。炉内沿程NOx浓度先逐渐增长,达到峰值后再稍有降低;纳米碳氢燃料归一化NOx排放比常规水煤浆更低。Nano-hydrocarbon fuel is a liquid coal based special fuel with a basic particle size of nanometers and high surface activity,which is made from coal,water,and a small amount of additives through advanced nano processing technology.This study investigated the combustion characteristics of nano-hydrocarbon fuel and conventional coal water slurry through a single droplet combustion device and atomization combustion experiments.The difference between nano-hydrocarbon fuel and normal coal water slurry on ignition temperature and atomization combustion characteristics were studied.The results show that the ignition points of nano-hydrocarbon fuel at 1000℃and 800℃have decreased by 47.6℃and 74.4℃,respectively,and the ignition delay time of nano-hydrocarbon fuel is shorter than that of conventional coal water slurry.The O_(2)concentration along the combustion process of nano-hydrocarbon fuel is 3%~6%lower than that of conventional coal water slurry,and the burnout rate of nano-hydrocarbon fuel is about 20%higher than that of conventional coal water slurry.The NOx concentration along the furnace gradually increases,reaches its peak,and then slightly decreases;The normalized NOx emissions of nano-hydrocarbon fuels are lower than those of conventional coal water slurry.

关 键 词：纳米碳氢燃料 燃烧特性 氮氧化物 着火温度 

分 类 号：TQ536[化学工程—煤化学工程]