Steam gasification of epoxy circuit board in the presence of carbonates

Shangzhong Zhang*, Kunio Yoshikawa, Hideki Nakagome, Tohru Kamo

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

To recover useful metals from end-of-life electronic devices and to convert plastic components from these devices into clean fuel gas, steam gasification of epoxy board samples was carried out at 600-700 °C and 0. 1 MPa pressure in the presence of a ternary eutectic carbonate (lithium carbonate, sodium carbonate, and potassium carbonate). Hydrogen and carbon dioxide were the main products, and methane and carbon monoxide were detected as minor products. The gasification proceeded in two steps: an initial rapid pyrolysis followed by secondary steam gasification of char produced from the pyrolysis. The ternary eutectic carbonate accelerated not only the latter steam gasification but also the initial rapid pyrolysis. The activation energy for the steam gasification of epoxy board samples in the presence of the carbonate was 122 kJ/mol.

本文言語English
ページ(範囲)294-300
ページ数7
ジャーナルJournal of Material Cycles and Waste Management
14
4
DOI
出版ステータスPublished - 2012 10月
外部発表はい

ASJC Scopus subject areas

  • 廃棄物管理と処理
  • 材料力学

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