CAJ | 학술논문

印度尼西亚是我国最大的煤炭进口国，本文应用电感耦合等离子体质谱、原子荧光光谱、直接测汞仪等技术分析了上海口岸31批进口印度尼西亚煤炭中的12种微量元素，结合数理统计方法研究该类煤炭中微量元素的赋存形态。结果表明，进口印尼煤炭中含有高汞煤、三级含砷煤，As、Hg的平均富集系数大于1，其迁移风险值得关注；Be、Cu、Mo、Cd、Sn、Pb含量均低于中国煤和世界煤炭的平均水平，体现出印尼煤炭低灰分的品质特征。12种微量元素和相关项目（灰分和全硫）可划分为3类：第一类归纳为黏土矿物吸附类，包括As、Be、Cr、Co、Hi、Cu、Mo、Cd、Sn、Pb、灰分；第二类归纳为硫铁矿类，包括Hg、全硫；第三类归纳为碳酸盐矿物类，包括Ba。本文研究结果对于指导进口煤炭开发、利用过程中的环境评价和洁净化处理具有一定的参考价值。
인도니서아시아국최대적매탄진구국，본문응용전감우합등리자체질보、원자형광광보、직접측홍의등기술분석료상해구안31비진구인도니서아매탄중적12충미량원소，결합수리통계방법연구해류매탄중미량원소적부존형태。결과표명，진구인니매탄중함유고홍매、삼급함신매，As、Hg적평균부집계수대우1，기천이풍험치득관주；Be、Cu、Mo、Cd、Sn、Pb함량균저우중국매화세계매탄적평균수평，체현출인니매탄저회분적품질특정。12충미량원소화상관항목（회분화전류）가화분위3류：제일류귀납위점토광물흡부류，포괄As、Be、Cr、Co、Hi、Cu、Mo、Cd、Sn、Pb、회분；제이류귀납위류철광류，포괄Hg、전류；제삼류귀납위탄산염광물류，포괄Ba。본문연구결과대우지도진구매탄개발、이용과정중적배경평개화길정화처리구유일정적삼고개치。
Indonesia is the largest coal importer of China. In this paper,the concentrations of 12 elements in 31 imported Indonesia coal samples were determined using Inductively Coupled Plasma-Mass Spectrometry( ICP-MS), atomic Fluorescence Spectrometry( AFS ),Direct Mercury Analyzer. The concentrations of trace elements in imported Indonesia coals were compared and evaluated. The statistical methods of correlation analysis,cluster analysis ,factor analysis were used to obtain some useful information about the possible modes of occurrence of these elements. The study shows that imported Indonesian coals containing high mercury coal,three levels of arsenic coal. The average enrichment coefficient of As,Hg is greater than 1,which suggest the migration risk of As,Hg should be concerned. The average concentrations of Be,Cu,Mo,Cd,Sn,Pb in imported Indonesia coals,lower than the Chinese coal and the world coal,which consistent with low ash content of Indonesia coals. The trace elements in this study can be divided into three categories:the first category is summed up as the clay mineral adsorption,including As,Be,Cr,Co,Hi,Cu,Mo,Cd,Sn,Pb,ash;second into the pyrite type,including Hg,total sulfur;third into the carbonate minerals,including Ba. The research of distribution of trace elements in imported Indonesia coals could provide scientific reference for environmental assessment and clean utilization of imported Indonesia coals.