掺混VOCs废气的燃烧特性及NO_(x)排放研究  

Investigation on Combustion Characteristics and NO_(x)Emission of VOCs Co-combustion

作　　者：张一鸣 段林林 张冲冲 张永民[2] 刘岑凡 Zhang Yiming;Duan Linlin;Zhang Chongchong;Zhang Yongmin;Liu Cenfan(Key Laboratory of Special Equipment Safety and Energy-saving for State Market Regulation,China Special Equipment Inspection&Research Institute,Beijing 100029;State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249)

机构地区：[1]国家市场监管重点实验室(特种设备安全与节能),中国特种设备检测研究院,北京100029 [2]中国石油大学(北京)重质油国家重点实验室,北京102249

出　　处：《中国特种设备安全》2024年第7期37-43,共7页China Special Equipment Safety

基　　金：国家重点研发计划项目(2021YFF0600604)。

摘　　要：为开发石化加热炉协同处理挥发性有机物(VOCs)技术,采用数值仿真方法研究了同轴伴流燃烧器空气侧掺混丙烷时,不同掺混比(0~2.1%)对甲烷燃烧特性的影响。在过量空气系数均为1.2的条件下,研究固定燃料气流量和固定进炉发热量两种工况,分析丙烷掺混比对温度场分布和氮氧化物排放量的影响。结果表明:丙烷掺混比的改变,均会使温度场分布和氮氧化物排放量发生变化,但相比于固定燃料气流量工况,固定进炉发热量时两者变化均较小,燃烧稳定性较好.In order to develop the co-processing technology of VOCs in petrochemical heating furnace,the influence of different mixing ratio(0~2.1%)on the combustion characteristics of methane in the air side of coflow burner was studied by numerical simulation.The effects of propane blending ratio on temperature field distribution and nitrogen oxide emission were investigated under fixed fuel gas flow rate and fixed furnace heating rate with excess air coefficient of 1.2.The results show that both the temperature field distribution and the nitrogen oxide emission change with the propane blending ratio.However,compared with the fixed fuel gas flow conditions,both changes are small and combustion stability is better when the fixed heat inputs.

关 键 词：VOCS废气 掺混燃烧 同轴伴流燃烧器 燃烧特性 氮氧化物 

分 类 号：X933.4[环境科学与工程—安全科学]