摘要
为了应对高硫焦剧烈减短罐式炉寿命的挑战,通过扫描电子显微镜(SEM)搭载的能量色散X射线光谱仪(EDX)和X射线衍射仪(XRD),开展硅砖损坏机理研究,包括某厂大修罐式炉用硅砖损毁机理研究和实验室模拟硅砖损毁机理研究。首次证实了石油焦中的S元素对硅砖基体中的CaO具有侵蚀作用。同时得出结论:石油焦中的硫与硅砖基体中的Ca形成的稳定的CaS化合物会存留于基体中,使基体受到破坏,硅砖发生剥落。
To meet the challenge that high-sulfur petroleum coke could greatly shorten the life of vertical shaft kiln,the damage mechanism of silicon brick,which includes the used silicon brick of plant and simulated damage silicon brick in laboratory,was investigated by scanning electron microscope(SEM)equipped with energy dispersive X-ray spectroscopy(EDX)and X-ray diffractometer(XRD).The erosion effect of sulfur element in petroleum coke on the CaO in silicon brick matrix was proved firstly.It is concluded that the stable CaS compound is formed by chemical reaction between the S element in petroleum coke and the Ca element in silicon brick matrix,which could still remain in the matrix,cause damage to the matrix and peel off silicon bricks.
作者
李星
孙毅
周善红
李强
Li Xing;Sun Yi;Zhou Shanhong;Li Qiang(Department of Science,Shenyang Jianzhu University,Shenyang 110168,China;Shenyang Aluminum and Magnesium Engineering and Research Institute Co.,Ltd.,Shenyang 110001,China)
出处
《轻金属》
北大核心
2023年第7期40-44,共5页
Light Metals
基金
辽宁省教育厅青年育苗计划(lnqn 202021)。
关键词
罐式炉
高硫焦
硅砖
侵蚀
机理研究
vertical shaft kiln
high-sulfur petroleum coke
silicon brick
erosion
mechanism study
