Catalytic wet peroxide oxidation degradation of m-cresol over an activated carbon catalyst
WANG Rui, HAN Pei-wei, LV Hong-xia, LI Xiao-gang, MA Lei, JIN Hai-bo, GUO Xiao-yan, HE Guang-xiang
Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
Abstract: Fresh coconut shell carbon (SAC) with high surface area is modified by hydrochloric acid and nitric acid.Catalytic wet peroxide oxidation (CWPO) degradation of m-cresol is investigated by SAC catalysts before and after modification,respectively.SAC catalysts before and after modification are characterized by physical adsorption,TPD-MS,Raman spectroscopy,X-ray fluorescence analysis (XRF),SEM and XPS.CWPO experimental results indicate that the surface oxygen-containing functional groups (SOGs) of SAC catalyst play an important role in CWPO reaction.Under continuous experiments,the activated carbon (SAC-N) treated by nitric acid shows the best catalytic activity,over which the conversion rate of m-cresol has always remained as high as 80% after 1 800 h of reaction,and the average removal rate of TOC exceeds 25%.
王蕊, 韩培威, 吕洪侠, 李小刚, 马磊, 靳海波, 郭晓燕, 何广湘. 活性炭基材料催化湿式过氧化氢氧化降解间甲酚废水的研究[J]. 现代化工, 2021, 41(2): 124-129.
WANG Rui, HAN Pei-wei, LV Hong-xia, LI Xiao-gang, MA Lei, JIN Hai-bo, GUO Xiao-yan, HE Guang-xiang. Catalytic wet peroxide oxidation degradation of m-cresol over an activated carbon catalyst. Modern Chemical Industry, 2021, 41(2): 124-129.
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