成果归属作者：

黄文辉

作者：

Hao, Huidi ; Jiu, Bo ; Huang, Wenhui ; Wang, Zhaoguo ; Qin, Binchao ; Huang, Linghao ; Zhao, Yingying ; Chen, Haonan

单位：

China Univ Geosci Beijing, Key Lab Marine Reservoir Evolut & Hydrocarbon Abun, Beijing 100083, Peoples R China;Peking Univ, Ordos Res Inst Energy, Inner Mongolia Key Lab Deep Coalbed Methane Accumu, Beijing 017000, Peoples R China

关键词：

OCCURRING RADIOACTIVE MATERIALS; HAZARDOUS TRACE-ELEMENTS; HAERWUSU SURFACE MINE; INNER-MONGOLIA; HEALTH IMPACTS; DEPOSIT; GEOCHEMISTRY; COMBUSTION; ENRICHMENT; MINERALOGY

摘要：

Conventional methods for assessing environmentally-sensitive elements (ESEs) in coal lack precise in-situ trace element resolution. This study developed a mapping approach utilizing both TESCAN Integrated Mineral Analyzer (TIMA) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) to resolve ESE distributions in coals. Analyses of a Wulantuga Ge-rich coal and two Al-Ga-Li-rich coals (of varying ranks) from the North China reveal rank-controlled partitioning of F, Cr, Cd, As, Se, Sb, Pb, and U. In the Ge-rich coal, F, Cd, and U are associated with illite, whereas As and Pb occur in pyrite and organic matter. Low-rank Li-rich coal shows dual pyrite-maceral associations of Cd, As, and Pb. High-rank Li-rich coal exhibits stronger mineral affiliations: pyrite hosts Cd, As, Se, and Pb, while Cr and U concentrate in zircon and Ti-bearing minerals (anatase/ rutile, Ti-rich kaolinite). Combustion impacts are phase-dependent: organically bound elements (e.g., low-rank Cr, Sb) display higher volatility, releasing toxic emissions, while mineral-hosted elements (e.g., high-rank pyrite-hosted As/Cd) enhance residue mobility. These findings enable rank-specific strategies to optimize combustion to suppress volatile toxins and design ash stabilization for mineral-bound pollutants, to mitigate environmental and health risks. The methodology advances ESE tracking in heterogeneous coal matrices, supporting cleaner utilization practices.

基金：

National Key Research and Development Plan of China [2021YFC2902003]; National Natural Science Foundation of China [42302193, 42272201]

语种：

英文

DOI：

10.1016/j.fuel.2025.136189

来源：

FUEL,2026():.

出版日期：

2026-01-15

提交日期：

2025-08-21

引用参考：

Hao, Huidi; Jiu, Bo; Huang, Wenhui; Wang, Zhaoguo; Qin, Binchao; Huang, Linghao; Zhao, Yingying; Chen, Haonan. Modes of occurrence of environmentally-sensitive elements in Ge-rich and Al-Ga-Li-rich coal[J]. FUEL,2026():.