| 辽河油田稠油中贵金属分布和赋存状态研究 |
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| 引用本文： | 徐振洪,朱建华,刘灿刚.辽河油田稠油中贵金属分布和赋存状态研究[J].地球化学,2004,33(5):521-527. |
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| 作者姓名： | 徐振洪 朱建华 刘灿刚 |
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| 作者单位： | 石油化工科学研究院,北京,100083;石油大学,化工学院,北京,102200 |
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| 基金项目： | 中国石油天然气集团公司资助项目 |
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| 摘 要： | 以辽河油田稠油为研究对象,通过原子吸收光谱、实沸点蒸馏等手段,研究了辽河油田稠油中Au、Ag、Pt和Pb等贵金属在不同馏分中的分布特征.结果表明,经过实沸点蒸馏后,贵金属不同沸程温度的原油馏分中含量和分布存在很大差异,Au、Ag、Pt、Pd主要集中在渣油馏分中,在沸点》508℃的渣油馏分中Au、Ag、Pt、Pd的比例分别是93.4%、76.9%、73.4%和68.0%;采用选择性萃取的方法对金在稠油中的存在形态的初步研究发现,金在稠油中主要以有机配合物和少量无机配合物形式存在.
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| 关 键 词： | 稠油 贵金属 分布 赋存状态 辽河油田 |
| 文章编号： | 0379-1726(2004)05-0521-07 |
| 修稿时间： | 2003年10月8日 |
Distribution and occurrence of precious metals in heavy oil from the Liaohe oilfield |
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| XU Zhenhong,ZHU Jianhua,LIU Cangang. Research Institute of Petroleum Processing,Beijing ,China.Distribution and occurrence of precious metals in heavy oil from the Liaohe oilfield[J].Geochimica,2004,33(5):521-527. |
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| Authors: | XU Zhenhong ZHU Jianhua LIU Cangang Research Institute of Petroleum Processing Beijing China |
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| Institution: | XU Zhenhong1,ZHU Jianhua2,LIU Cangang21. Research Institute of Petroleum Processing,Beijing 100083,China, 2. Institute of Chemical Engineering,Petroleum University of China,Beijing 102200,ChinaCorrespondence should be addressed to XU Zhenhong |
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| Abstract: | The abundance and distribution characteristics of precious metals including Au, Ag, Pt and Pd in heavy oils from the Liaohe oilfield in China have been investigated by means of graphite furnace atomic adsorption spectrometry (GFAAS), true boiling point distillation (TBP) and partial extraction, back extraction etc. The results show that contents of precious metal in different distillation fractions vary greatly with temperature ranges, and that precious metals in heavy oils are mainly concentrated in residue, and the amounts of Au, Ag, Pt and Pd in residue respectively account for 93.4%, 76.9%, 73.4%and 68.0%of total amounts of Au, Ag, Pt and Pd in heavy crude oil. The gold in heavy oil exists mainly in the form of Au+organic complexes and partly in the form of Au3+organic complex and aqueous soluble compounds. |
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| Keywords: | heavy oil precious metal distribution occurrence Liaohe oilfield |
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