Study on Trace and Rare Earth Elements in Indonesian Oil Sands
Major,trace elements and rare earth and mineral composition of the oil sand samples (ST1,ST2,ST3) and the oil sand retorting residue (semi-coke: SCI,SC2,SC3) from Indonesian were determined by XFS,ICP-MS and XRD methods.The trace elements content in oil sand is pretty much the same thing in Earths Clarke value.The trace element is abundantly in earths Clarke,in oil sand yet,for Ti,Mn,Ba,Sr,but these elements are lower enrichment.However,the Cr (EF=16.8) and Mo (EF= 11.8) are enrichment in ST1;the Ni (EF=10.5),Se (EF=17.5),Sr (EF=28.7),Mo (EF=106.5),Sc (EF=12.8) and U (EF=43.2) are enrichment in ST2;the Se (EF=12.6),Sr (EF=18.4),Mo (EF=47.5),and U (EF=27.8) are enrichment in ST3.Calculations show that trace elements in simecoke have lower evaporation rate during Fischer Assay.Trace elements in raw oil sand are so stable that trace elements cant move easily to other pyrolysis product but enrich to sime-coke.After retorting,more elements are EF>10,such as B,V,Ni,As,Se,Sr,Mo,Hg,Cs and U.It is essential to take the pollution produced by trace elements in sime-coke during the sime-coke utilization into consideration.The REEs content had a high correlation with the ash in oil sand.The REE is closely related to terrigenous elastic rocks.
oil sand rare earth elements trace elements
BAI Jing-ru WANG Qing Liu Hong-peng BAI Zhang
Engineering Research Centre of Ministry of Education for Comprehensive utilization of Oil Shale,Northeast Dianli University,JilinJilin 132012,China
国际会议
The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)
哈尔滨
英文
145-148
2011-07-19（万方平台首次上网日期，不代表论文的发表时间）