Reactivity and structural change of coal char during steam gasification

Yasushi Sekine*, Kiyohiro Ishikawa, Eiichi Kikuchi, Masahiko Matsukata, Akemitsu Akimoto

*この研究の対応する著者

研究成果: Article査読

115 被引用数 (Scopus)

抄録

This study is intended to clarify the relationship among the reactivity of coal char with steam, structural change in residual carbon, and ash behavior. Steam gasification of various coal chars and demineralized chars was carried out in a fixed-bed reactor. After gasification, the reacted char was analyzed using laser raman spectroscope (LRS), and scanning electron microscope, energy dispersive X-ray spectroscope (SEM/EDX) mapping. Results of SEM images and EDX-mappings revealed that novel parallel analysis of cross correlation between EDX-mapping and LRS-mapping was found to be very effective for the comprehensive evaluation of ash behavior and carbonaceous structure. As the gasification reaction proceeds, the reactivity of the char was varied; existence of Si and Al seemed to suffocate the char reactivity.

本文言語English
ページ(範囲)122-126
ページ数5
ジャーナルFuel
85
2
DOI
出版ステータスPublished - 2006 1月

ASJC Scopus subject areas

  • 化学工学(全般)
  • 燃料技術
  • エネルギー工学および電力技術
  • 有機化学

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