The structural parameters of six Nigerian coals were determined by X-ray diffraction, Raman
and FTIR spectroscopy. This study reveals that the coals contain crystalline carbon of …

Organic chemical reactions cause the temperature rising during coal oxidation; however,
because of the complex structure of coal, it is difficult to analyze and characterize the …

Thirty-five SS coals as well as two Australian lignites were analyzed by Fourier transform
infrared (FT-IR) spectrometry using the KBr tablet method; the SS coals are a series of …

The effects of heat treatment on the structural transformation of a Chinese brown coal were
studied using Fourier transform infrared spectroscopy (FT-IR), high resolution solid-state …

A lignite from Shengli mine in Chinese Inner Mongolia was upgraded by hydrothermal
dewatering (HTD). The effects of the HTD process on the solid product yield and the removal …

The chemical structures of six coal samples with different ranks were semi-quantitatively
characterized by a series of original infrared structural parameters, and the pyrolysis …

The intrinsic alkali and alkaline earth metals (AAEMs) have obvious catalysis on pyrolysis of
low-rank coal. Due to the differences in dispersion degree and chemical form, the catalytic …

The selective enrichment of macerals and inorganic minerals during coal grinding may have
an obvious effect on pyrolysis reactivity. In this paper, chemical structures and pyrolysis …

Phenols from coal pyrolysis are extremely precious chemicals, understanding the factors
that influence the amounts and species of phenols during coal pyrolysis is of vital …

A South African inertinite rich medium rank bituminous coal was subjected to a series of acid
treatment steps using concentrations of HF and HNO3 ranging between 1.5 and 4M …