Preparation of nitrogen-doped petroleum coke based activated carbon and its performance in catalytic oxidation of hydrogen sulfide at room temperature
ZHENG Hao-ming1, ZHU Wen-fu1, LUO Ying-hong1, WANG Zi-kun1, LIU Mei-yin1, HUANG Hao-min1,2, YE Dai-qi1,2, LI Hong-xiang3, WU Jun-liang1,2
1. School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; 2. National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, China; 3. Shanxi Xinhua Chemical CO., LTD., Taiyuan 030008, China
Abstract：A novel nitrogen-doped porous carbon was successfully prepared using petroleum coke as the carbon source and the solid waste from melamine production as the nitrogen source. The catalyst exhibited excellent H2S catalytic oxidation capacity in room temperature with a breakthrough sulfur capacity of 398.4mg/g. Three process parameters, namely, the amount of activator, nitrogen doping temperature and nitrogen source, changed the specific surface, N configuration and N content of the catalysts, respectively, during the preparation process. By optimizing the process conditions, the highest reactive center, pyridine N, could be achieved at 2.88at.%. Compared with the catalyst prepared using traditional raw material, it achieves waste utilization and green preparation. The results of this paper provide a new approach for the preparation of porous carbon materials with low cost and high breakthrough sulfur capacity.
郑皓鸣, 朱文富, 罗颖鸿, 王子琨, 刘美茵, 黄皓旻, 叶代启, 李洪祥, 吴军良. 掺氮石油焦基活性炭常温催化氧化硫化氢研究[J]. 中国环境科学, 2023, 43(9): 4550-4560.
ZHENG Hao-ming, ZHU Wen-fu, LUO Ying-hong, WANG Zi-kun, LIU Mei-yin, HUANG Hao-min, YE Dai-qi, LI Hong-xiang, WU Jun-liang. Preparation of nitrogen-doped petroleum coke based activated carbon and its performance in catalytic oxidation of hydrogen sulfide at room temperature. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(9): 4550-4560.
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