Structural characteristics of coal vitrinite during pyrolysis

W Li, Y Zhu - Energy & fuels, 2014 - ACS Publications
Vitrinite samples inserted into a furnace at room temperature and heated at a rate of 10° C/h
were subjected to X-ray diffraction analysis, Fourier transform infrared spectroscopy (FTIR) …

The evolution of chemical groups and isotopic fractionation at different maturation stages during lignite pyrolysis

K He, S Zhang, J Mi, W Zhang - Fuel, 2018 - Elsevier
In this study, the evolution of different chemical groups and isotopic fractionation at different
maturation stages of coals were investigated by gold-tube pyrolysis, detailed geochemical …

Comparison of elemental composition of macerals determined by electron microprobe to whole-coal ultimate analysis data

CR Ward, Z Li, LW Gurba - International Journal of Coal Geology, 2008 - Elsevier
The elemental composition of the individual macerals in a suite of Australian coals has been
determined in polished sections using light-element electron microprobe techniques. The …

Source and enrichment of toxic elements in coal seams around mafic intrusions: Constraints from pyrites in the Yuandian coal mine in Anhui, Eastern China

Y An, L Liu, M Wang, S Zheng, Y Guo, S Zhang, C Lai - Minerals, 2018 - mdpi.com
Pyrite, a mineral that can cause potential environmental issues in coal mining, is commonly
found in coal seams around intrusions. In this paper, pyrites from the Yuandian Coal Mine …

[PDF][PDF] An effect of igneous intrusion on the structure, texture and microtexture of coal from the Sośnica coal mine, Upper Silesian Coal Basin, Poland

Ł Smędowski, S Duber, A Matuszewska - Geological Quarterly, 2015 - bibliotekanauki.pl
Two coal samples from the Sośnica coal mine, Poland, were analysed in this study. One
sample was the natural char collected at the contact of magmatic intrusion, and another …

Minerals and enrichment of W, Rb, and Cs in late Permian coal from Meitian mine, Meitian coalfield, Southern China by magmatic hydrothermal fluids

Z Xiao, Y Cao, W Jiang, P Zhou, Y Huang, J Liu - Minerals, 2018 - mdpi.com
We report on the effects of magmatic hydrothermal fluids on the mineralogical and
geochemical compositions of 12U and 12L Coals from the Meitian Mine in the Meitian …

炼焦机理和焦炭质量预测的研究进展

李艳红, 赵文波, 常丽萍, 王美君, 王平艳, 杨荣 - 化工学报, 2014 - hgxb.cip.com.cn
综述了煤的热塑性, 炼焦机理和焦炭质量预测的研究进展. 煤的化学结构如煤中镜质组的烷基侧
链和移动氢的含量决定了煤的热塑性, 核磁共振, 质子磁共振热分析, 拉曼光谱和电子顺磁共振谱 …

Hydrocarbon generation from Carboniferous-Permian coaly source rocks in the Huanghua depression under different geological processes

JJ Xu, Q Jin - Petroleum Science, 2020 - Springer
Natural gas and condensate derived from Carboniferous-Permian (CP) coaly source rocks
discovered in the Dagang Oilfield in the Bohai Bay Basin (east China) have important …

[PDF][PDF] ISIL İŞLEM GÖRMÜŞ KÖMÜRLERE MTBE'NİN ADSORPSİYONU

S Bal - 2007 - dspace.ankara.edu.tr
MTBE (metil tersiyer butil eter) oktan yükseltici olarak ve hava kalitesinin korunması
amacıyla NOx, CO emisyonlarını azalttığı için belirli oranlarda benzine katılmaktadır. Ancak …

[引用][C] 煤显微组分结构特征及其与热解行为的关系

王传格, 张妮, 陈燕 - 煤炭转化, 2011