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Title: Influence of neutral inorganic chlorides on primary and secondary char formation from cellulose
Authors: Kawamoto, Haruo  kyouindb  KAKEN_id
Yamamoto, Daisuke
Saka, Shiro  kyouindb  KAKEN_id
Author's alias: 河本, 晴雄
坂, 志朗
Keywords: Cellulose
Primary char
Secondary char
Alkali metal chloride
Alkaline earth metal chloride
Issue Date: Jun-2008
Publisher: Springer Japan
Journal title: Journal of Wood Science
Volume: 54
Issue: 3
Start page: 242
End page: 246
Abstract: The influence of various alkali and alkaline earth metal chlorides (LiCl, NaCl, KCl, MgCl₂, and CaCl₂) on primary and secondary char formation from cellulose was studied at 400°C. Secondary char was formed through carbonization of the volatile products. All chlorides increased the primary char yield while decreasing the secondary char formation, and this situation was promoted in the order of alkaline earth Mg, Ca, alkali Li > alkali Na, K. Levoglucosan yield also decreased along with the secondary char yield. These results indicate that the reduced formation of volatile levoglucosan was related to the decreasing yield of secondary char. A model experiment at 250°C revealed that these chlorides, especially the two alkaline earth metals, had catalytic action on the polymerization of levoglucosan, which serves to reduce the formation of volatile levoglucosan.
Rights: This is a post-peer-review, pre-copyedit version of an article published in 'Journal of Wood Science'. The final authenticated version is available online at: https://doi.org/10.1007/s10086-007-0930-8.
The full-text file will be made open to the public on 1 June 2009 in accordance with publisher's 'Terms and Conditions for Self-Archiving'.
This is not the published version. Please cite only the published version. 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。
URI: http://hdl.handle.net/2433/240658
DOI(Published Version): 10.1007/s10086-007-0930-8
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