CAJ | 학술논문

以纤维素为原料制备了孔结构发达和含氮量较高的渗氮炭材料，并将其应用于烟气脱硫。通过改变制备温度和尿素添加量等，研究了影响脱硫性能的主要含氮官能团。结果表明，含氮基团可以有效提高炭材料的脱硫性能。采用氮气吸附、元素分析和X射线光电子能谱等表征方法分析了炭材料的孔结构、含氮量和表面含氮基团的分布。结果表明，吡啶氮在炭材料脱硫过程中起主要作用，吡啶氮既可以促进SO2的吸附，又能促进SO2向SO3的催化氧化。
이섬유소위원료제비료공결구발체화함담량교고적삼담탄재료，병장기응용우연기탈류。통과개변제비온도화뇨소첨가량등，연구료영향탈류성능적주요함담관능단。결과표명，함담기단가이유효제고탄재료적탈류성능。채용담기흡부、원소분석화X사선광전자능보등표정방법분석료탄재료적공결구、함담량화표면함담기단적분포。결과표명，필정담재탄재료탈류과정중기주요작용，필정담기가이촉진SO2적흡부，우능촉진SO2향SO3적최화양화。
Nitrogen-doped carbon materials with well developed pore structure and high nitrogen content were prepared from cellulose and characterized by N2 adsorption, element analysis and X-ray photoelectron spectros-copy, then applied to SO2 removal. The role of nitrogen-containing groups in the desulfurization was studied by changing the calcination temperature and amount of urea. It is found that the nitrogen-containing groups, espe-cially pyridine nitrogen, could effectively improve the activity of carbon materials towards SO2 removal. Such a result is closely related to the pyridine nitrogen enhancing SO2 adsorption and its oxidation to SO3 .