Can I read The Variation of Structural Characteristics of Macerals During Pyrolysis⋆ on EtoBox?

The Variation of Structural Characteristics of Macerals During Pyrolysis⋆ by Qinglei Sun; Wen Li; Haokan Chen; Baoqing Li is a Engineering article available to read on EtoBox.

What is The Variation of Structural Characteristics of Macerals During Pyrolysis⋆ about?

Vitrinite and inertinite were separated by DGC from Chinese Shenmu bituminous coal and the structural characteristics of the macerals, before and after pyrolysis, were analyzed by ultimate analysis, FTIR and 13 C NMR. The results showed that vitrinite chars always had higher H and lower C content than inertinite char at the same pyrolysis temperature. The FTIR and 13 C NMR indicated that vitrinite had more aliphatic C-H, hydrogen bonding and lower aromaticity. With increasing temperature, the aliphatic C-H decreased, aromatic C -H, aromaticity and H ar /H al ratio increased. At the same temperature, inertinite always had higher H ar /H al ratio than vitrinite, which is consistent with that inertinite had higher aromaticity than vitrinite. And the H ar /H al ratio was also related to the remainder volatile matter. With increasing H ar /H al ratio, the remainder volatile matter in vitrinite and inertinite decreased. The higher aromaticity and H ar /H al ratio and lower H content of the inertinite in all temperature range were correlated with its higher thermal stability and lower volatile yield than vitrinite.

Who reads The Variation of Structural Characteristics of Macerals During Pyrolysis⋆?

Author

Qinglei Sun; Wen Li; Haokan Chen; Baoqing Li

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0016-2361)

Published

2003

Language

EN

Field

Engineering (Physical Sciences)