模拟CO2埋藏的煤储层元素迁移实验研究Laboratory Study on Elements Migration Associated with CO2 Sequestration in Coal
刘长江,桑树勋,G.X.Wang,Sue Golding
摘要(Abstract):
采用高压超临界CO2地球化学反应器对CO2在煤储层中的地质埋藏进行模拟,利用电感耦合等离子体发射光谱仪(ICP-OES)以及电感耦合等离子体质谱(ICP-MS)分别对淋滤液和煤样中的10种微量元素进行测试,对煤中微量元素在CO2的地质埋藏过程中的迁移进行了实验研究。结果表明:在CO2的地质埋藏过程中对煤的有机组成和无机矿物等均具有改造作用,从而影响到煤中微量元素的赋存和迁移特征,Cr、Zn、Cu等元素迁移能力相对较强,而Co、Ba、V等元素相对较弱;元素迁移能力大小顺序为:Cr>Zn>Cu>Ni>Cd>Mn>Co>Ba>V。
关键词(KeyWords): CO2地质埋藏;煤;元素迁移
基金项目(Foundation):
作者(Author): 刘长江,桑树勋,G.X.Wang,Sue Golding
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