油页岩中几种微量元素在干馏过程中的形态变迁 - 化学通报.pdfVIP

化学通报 2015 年 第 78 卷 w2015001 研究论文 油页岩中几种微量元素在干馏过程中的形态变迁 # 柏静儒 陈定形 周新杭 张 伟 王 擎 # (东北电力大学能源与动力工程学院 油页岩综合利用教育部工程研究中心 吉林市 132012； 大唐国际潮州发电有限责任公司 潮州 515723) 摘 要 以桦甸油页岩为研究对象，采用逐级提取实验，考察了不同升温速率及干馏终温对其内部赋存 的 Cr、Co、Pb 、Cu、V 五种微量元素的形态变迁特性的影响。结果发现，各元素均在 2.5 ℃/min 和 20 ℃/min 升温速率下表现出了较大的迁移率，且干馏终温升高更有利于元素的迁移；低升温速率和高干馏终温更能促进 元素大部分形态的迁移，但硫化物结合态的迁移在高升温速率和高干馏终温则更为有利；元素不同形态的迁移 总会有一部分向有机物结合态转变。 关键词 微量元素 油页岩 形态变迁 迁移率 States Transformation of Trace Elements during Oil Shale Retorting Bai Jingru, Chen Dingxing, Zhou Xinhang # , Zhang Wei, Wang Qing (Engineering Research Centre of Ministry of Education for Comprehensive Utilization of Oil Shale, Northeast Dianli University, Jilin 132012; #Chaozhou Power Plant of China Datang, Chaozhou 515723) Abstract States transformation of trace element Cr, Co, Pb, Cu, V in Huadian oil shale during retorting was studied. The retorting experiment was conducted by sequential chemical extraction (SEC). The effects of heating rate and temperature on the transformation were investigated. The results indicated that trace elements have a higher migration rate in retorting at heating rate of 2.5 ℃/min and 20 ℃/min ，and the higher retorting temperature, the better trace elements migration. Most of states transformation are better migration in low heating rate and high final temperature, but sulfide bound fraction is better migration in high heating rate and high final temperature. Different states will have some parts migrate to organic matter bound fraction. Keyword