摘要
采用喷淋散射技术结合臭氧前置氧化进行同时脱硫脱硝实验,探究了O3与NO物质的量比、SO2初始体积分数、液气体积比、浸没深度等对脱除效率(脱硫和脱硝效率)的影响。结果表明:喷淋散射技术的脱除效率均高于只喷淋或只鼓泡方式;随着O3与NO物质的量比和SO2初始体积分数的增大,脱硝效率不断提高,脱硫效率基本未受影响;脱除效率随液气体积比和浸没深度的增大而提高;与只喷淋方式、液气体积比较大的条件相比,采用喷淋散射技术、液气体积比较小时的脱除效率更高;与只鼓泡方式、浸没深度较大的条件相比,采用喷淋散射技术、浸没深度较小时的脱除效率更高。
Experimental tests were conducted on the simultaneous removal of SO2 and NOx by a spray-and-bubbling scattered reactor based on ozone pre-oxidation,while the effects of following factors on the removal efficiency were investigated,such as the molar ratio of O3 to NO,the initial volume fraction of SO2,the liquid-gas volume ratio and the immersion depth,etc.Results show that the removal efficiency of both SO2 and NOx by a spray-and-bubbling scattered reactor is higher than that by single spray or single bubbling method.With the rise of O3-NO molar ratio and initial SO2 volume fraction,the denitrification efficiency increases continuously,while the desulfurization efficiency basically keeps unchanged.The removal efficiency increases with the rise of liquid-gas volume ratio and bubbling pipe immersion depth.Compared with the conditions of single spray at larger liquid-gas volume ratios,higher removal efficiency could be obtained by the spray-and-bubbling scattered reactor at smaller liquid-gas volume ratios.Compared with the conditions of single bubbling at larger immersion depths,higher removal efficiency could be achieved by the spray-and-bubbling scattered reactor at smaller immersion depths.
作者
严雪南
王春波
司桐
陈士磊
任育杰
胡健
YAN Xuenan;WANG Chunbo;SI Tong;CHEN Shilei;REN Yujie;HU Jian(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Baoding 071003,Hebei Province,China;CECEP Industrial Energy Conscrvation Co.,Ltd.,Beijing 100082,China)
出处
《动力工程学报》
CAS
CSCD
北大核心
2019年第6期461-467,485,共8页
Journal of Chinese Society of Power Engineering
基金
国家重点研发计划资助项目(2016YFB0600701)
关键词
喷淋散射
脱硫
脱硝
喷淋塔
鼓泡塔
spray scattering
desulfurization
denitration
spray tower
jet bubbling reactor
