烟气净化用活性炭耐磨强度的影响机理研究

李小龙; 张涛; 赵惊尘

doi:10.13205/j.hjgc.202305007

烟气净化用活性炭耐磨强度的影响机理研究

doi: 10.13205/j.hjgc.202305007

李小龙^1,2,
张涛^3, ,,
赵惊尘³

1. 中冶长天国际工程有限责任公司工程技术研究中心, 长沙 410205;
2. 烟气多污染物协同治理及资源化湖南省重点实验室, 长沙 410205;
3. 中国人民大学环境学院, 北京 100872

基金项目:

湖南省重点研发计划(2022SK2065)

详细信息

作者简介:
李小龙(1990-),男,硕士,工程师,主要研究方向为环保新材料研发。475450576@qq.com

通讯作者:
张涛(1987-),男,副教授,主要研究方向为工业废物资源化利用。zhangt@ruc.edu.cn

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出版历程
- 收稿日期: 2022-09-19

INFLUENCE MECHANISM OF ABRASIVE RESISTANCE OF ACTIVATED CARBON FOR FLUE GAS PURIFICATION

1. Engineering Technology Research Center of Zhongye Changtian International Engineering Co., Ltd, Changsha 410205, China;
2. Hunan Provincial Key Laboratory of Synergetic Control and Resource Utilization of Flue Gas Multi-pollutants, Changsha 410205, China;
3. School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China

摘要

摘要: 烟气净化用活性炭的耐磨强度的影响因素及机理研究对其生产配方、工艺调控和烟气净化工程高效稳定运行均具有重要意义。为研究活性炭耐磨强度差异的机理,采用8组不同批次活性炭进行改进测试时间的耐磨强度测试,使用SEM、XRD、拉曼(Raman)、N₂-吸附脱附及FT-IR等测试技术对活性炭进行表征,研究了活性炭耐磨强度与其宏观聚集状态、微观晶体结构、孔道结构、表面官能团的关系。结果表明:活性炭的耐磨强度与表面细颗粒物含量、2~50 nm介观开气孔孔容及颗粒的隐晶质石墨晶体含量呈负相关,与表面强极性羟基等基团数量呈正相关。
- 活性炭 /
- 耐磨强度 /
- 石墨 /
- 开气孔 /
- 官能团
Abstract: The wear resistance of activated carbon used for flue gas purification is of great significance for its production formula, process control, and efficient and stable operation of flue gas purification engineering. In order to study the influence mechanism of the abrasive resistance of activated carbon used in purifying the flue gas from iron and steel sintering, eight groups of activated carbon from different batches were selected to conduct the abrasive resistance test for improving the test time, and the activated carbon was characterized by SEM, XRD, Raman, N₂ adsorption-desorption and FT-IR test techniques. The relationship between the abrasive resistance of activated carbon and its macro aggregation state, micro crystal structure, pore structure and surface functional groups was studied. The results showed that the abrasive resistance of activated carbon was negatively correlated with the content of fine particles on the surface, the volume of mesoscopic pores in the range of 2 nm to 50 nm and the content of aphanitic graphite crystals in the particles, and positively correlated with the number of strong polar hydroxyl groups on the surface.
- activated carbon /
- abrasive resistance /
- graphite /
- open pores /
- functional group

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