ダウンロード数: 344
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
j.jaap.2008.11.028.pdf | 552.47 kB | Adobe PDF | 見る/開く |
タイトル: | Solid/liquid- and vapor-phase interactions between cellulose- and lignin-derived pyrolysis products |
著者: | Hosoya, Takashi Kawamoto, Haruo https://orcid.org/0000-0002-4934-8054 (unconfirmed) Saka, Shiro |
著者名の別形: | 細谷, 隆史 河本, 晴雄 坂, 志朗 |
キーワード: | Cellulose Lignin Pyrolysis Gasification Interaction Mechanism H-donor H-acceptor |
発行日: | May-2009 |
出版者: | Elsevier BV |
誌名: | Journal of Analytical and Applied Pyrolysis |
巻: | 85 |
号: | 1-2 |
開始ページ: | 237 |
終了ページ: | 246 |
抄録: | Solid/liquid- and vapor-phase interactions between cellulose- and lignin (Japanese cedar milled wood lignin)-derived pyrolysis products were studied under the conditions of N2/600 °C/40–80 s. A dual-space closed ampoule reactor was used to eliminate the solid/liquid-phase interactions, and careful comparison of the resulting data with those of the pyrolysis of the mixed samples gave some insights into the solid/liquid- and vapor-phase interactions separately. With the solid/liquid-phase interactions, the tar yields from both cellulose and lignin increased with the decreasing yields of the char fractions in a short pyrolysis time of 40 s (primary pyrolysis stage). Most of the identified tar components from cellulose and lignin increased in their yields. The vapor-phase interactions were significant at a longer pyrolysis time of 80 s (secondary reaction stage) when the methoxyl groups of the lignin-derived volatiles were cleaved homolytically. The vapor-phase interactions accelerated the gas formation from the cellulose-derived volatiles with suppressing the vapor-phase char formation of the lignin-derived volatiles. The yields of methane and catechols from lignin also increased greatly instead of the formation of o-cresols. Most of these influences are explained with a proposed interaction mechanism, in which the cellulose-derived volatiles act as H-donors while the lignin-derived volatiles (radicals) act as H-acceptors. |
著作権等: | © 2008. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ The full-text file will be made open to the public on 1 May 2011 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/240655 |
DOI(出版社版): | 10.1016/j.jaap.2008.11.028 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。