Molecular composition of extracts obtained by hydrothermal extraction of brown coal

Qingxin Zheng, Masato Morimoto, Hiroaki Sato, Toshimasa Takanohashi

研究成果: Article査読

19 被引用数 (Scopus)

抄録

Abstract Three brown coals were extracted by a hydrothermal method at 350 °C and 20 MPa for 90 min, and the molecular compositions of the deposit extracts were analyzed in detail by high-resolution mass spectrometry measurements. The extract yields were as high as ∼30% for all brown coals, indicating that hydrothermal extraction is applicable to brown coals with differing ash and sulfur contents. The high-resolution mass measurements with Kendrick mass analyses identified the chemical compositions and clarified the abundance of common molecular species in all the extracts prepared from the three brown coals. The sum of mass intensities of overlapped CnHm, CnHmO, CnHmO2, CnHmO3, CnHmO4, and CnHmN species in the mass spectra of LY, NM, and YN extracts were 37.0%, 35.9%, and 50.8%, respectively, indicating the presence of abundant compounds with similar molecular compositions in all of the extracts, regardless of the parent coal.

本文言語English
論文番号9447
ページ(範囲)751-758
ページ数8
ジャーナルFuel
159
DOI
出版ステータスPublished - 2015 7月 25
外部発表はい

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

フィンガープリント

「Molecular composition of extracts obtained by hydrothermal extraction of brown coal」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル