中国电机工程学报Issue(10)：2495-2503,9.DOI:10.13334/j.0258-8013.pcsee.2015.10.016
活性炭纤维联合脱硫脱硝的机理分析
Mechanism of Combined Removal of SO2 and NO Over Activated Carbon Fibers
摘要
Abstract
Removal of SO2 and NO by viscose base activated carbon fibers were carried out on a fixed-bed adsorption reactor. The change of surface functional groups and adsorption strength before and after the individual and simultaneous adsorption of SO2 and NO in N2/O2, respectively, were investigated by using FTIR and TPD. Results show that both of the adsorbed SO2 and NO can be oxidized by the oxygen-containing functional groups in N2. In O2, part of the nitrogen-containing functional groups is oxidized into nitroso which provides SO2 adsorption sites in separate adsorption SO2 process. Whereas, —NO3 is detected on the surface of the activated carbon fibers in adsorption NO process. In the process of simultaneous adsorption SO2 and NO, adsorbed NO is oxidized to —NO2 and —NO3 which provide adsorption sites for SO2. Adsorbed SO2 is oxidized to higher valance sulfur in oxidized form by —NO2 and —NO3 while these nitrogen-containing functional groups were restored.关键词
活性炭纤维(ACF)/脱硫脱硝/傅里叶变换红外光谱分析(FTIR)/程序升温脱附试验(TPD)Key words
activated carbon fiber (ACF)/simultaneous adsorb SO2 and NO/Fourier transform infrared spectroscopy (FTIR)/temperature programmed desorption (TPD)分类
资源环境引用本文复制引用
杨辉,刘豪,朱德力,王泽安,邱建荣,曾汉才..活性炭纤维联合脱硫脱硝的机理分析[J].中国电机工程学报,2015,(10):2495-2503,9.基金项目
国家自然科学基金(50976041)；华中科技大学创新基金(2014NY008)。Project Supported by National Nature Science Foundation of China (50976041) （50976041）
Innovation Research Foundation of Huazhong University of Science and Technology (2014NY008) （2014NY008）
