摘要
为实现低温高氧条件下脱硝除尘的一体化,采用浸渍法制备出具有脱硝除尘功能的CuMnCeO_(x)负载高硅氧滤料复合滤布,研究了CuMnCeO_(x)负载高硅氧滤料复合滤布的脱硝除尘性能。测试评价了负载量、表面改性方式、反应条件和SO_(2)对脱硝除尘性能的影响,并通过SEM、XRD及EDS表征手段对制备的复合滤料进行分析。结果表明:当负载量为120g/m^(2),氧气含量为16%,空速为60000 h^(-1),在200℃~260℃下,脱硝效率为51%~70%。且在10 h的长期稳定性测试中,脱硝效率无明显下降,表现出良好的脱硝性能稳定性。通入SO_(2)1h后切断SO_(2),脱硝效率逐渐恢复,具有良好的抗硫性能。CuMnCeO_(x)负载高硅氧滤料复合滤布除尘效率在99%以上,满足实际工业烟尘治理应用要求。
In order to realize the integration of denitration and dust removal under the condition of low temperature and high oxygen,CuMnCeO_(x) loaded high silica filter material composite filter cloth with denitration and dust removal functions was prepared by impregnation method.The denitration and dust removal performance of CuMnCeO_(x) loaded high silica filter material composite filter cloth was studied.The effects of load,surface modification mode,reaction conditions and SO_(2) on denitration and dust removal performance were tested and evaluated.Also,the prepared composite filter material was analyzed by SEM,XRD and EDS.The results showed that when the load was 120 g/m^(2),the oxygen content was 16%and the space velocity was 60000 h^(-1),the denitration efficiency was 51%~70%at 200~260℃.In the 10 h long-term stability test,the denitration efficiency did not decrease significantly,showing good denitration performance stability.SO_(2) was cut off after one hour infusion,the denitration efficiency was gradually restored,showing good sulfur resistance.In addition,the dust removal efficiency of CuMnCeO_(x) loaded high silica filter material composite filter cloth was more than 99%,which met the requirements of practical industrial smoke control application.
作者
张雅静
刁永发
蒋捷
ZHANG Ya-jing;DIAO Yong-fa;JIANG Jie(College of Environmental Science and Engineering,Donghua University,Shanghai 201620)
出处
《纺织科学与工程学报》
2022年第2期76-83,共8页
Journal of Textile Science & Engineering
基金
国家重点研究与发展资助项目(2018YFC0705300)。
关键词
高硅氧滤料
选择催化还原
表面改性
一体化脱除
high silica filter material
selective catalytic reduction
surface modification
integrated removal
