Effects of steam and CO2 on the characteristics of chars during devolatilization in oxy-steam combustion process
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- 作者：Jun Xu ; Sheng Su ; susheng_sklcc@hotmail.com" class="auth_mail" title="E-mail the corresponding author ; Zhijun Sun ; Mengxia Qing ; Zhe Xiong ; Yi Wang ; Long Jiang ; Song Hu ; Jun Xiang ; xiangjun_sklcc@hotmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Oxy-steam combustion ; Steam/CO2 ; Char structure ; FT-IR/Raman ; Devolatilization
- 刊名：Applied Energy
- 出版年：2016
- 出版时间：15 November 2016
- 年：2016
- 卷：182
- 期：Complete
- 页码：20-28
- 全文大小：1958 K
文摘
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Devolatilization characteristics of coal in oxy-steam combustion were studied.
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Char characteristics during devolatilization in H2O/CO2 differ from those in N2.
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High concentration of H2O greatly decreases the char yields and condenses the char.
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CO2 in H2O/CO2 affects char yield little but leads a less condensed char.
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A relationship between the char structural features and char reactivity was set up.