生物质半焦/铜基载氧体气化反应特性研究

冉景煜; 张松; 秦昌雷; 禹建功; 付范萱; 杨琳

生物质半焦/铜基载氧体气化反应特性研究

冉景煜^1,2,,
张松^1,2,
秦昌雷^1,2,
禹建功^1,2,
付范萱^1,2,
杨琳^1,2

1.
重庆大学低品位能源利用技术及系统教育部重点实验室, 重庆 400030;
2.
重庆大学能源与环境研究所, 重庆 400030

基金项目: 重庆市自然科学基金(cstc2013jjB90003); 低品位能源利用技术及系统教育部重点实验室开放基金(LLEUTS-201306).

详细信息

通讯作者:
冉景煜(1968-), 男, 教授, 主要研究方向为煤(劣质燃料)燃烧与多相流动理论, 新能源与可再生能源利用技术, E-mail: ranjy@cqu.edu.cn, Tel: 18996085138

中图分类号: TK121
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- 被引次数: 0
出版历程
- 收稿日期: 2014-05-06
- 修回日期: 2014-07-16
- 刊出日期: 2014-11-30

Gasification reactivity of biomass char with oxygen carrier CuO

1.
Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400030, China;
2.
Institute of Energy & Environment Chongqing University, Chongqing 400030, China

摘要

摘要: 通过吉布斯自由能最小化法对生物质半焦与载氧体CuO之间的反应进行热力学计算,研究温度、载氧体量及压力对生物质半焦化学链气化的影响.同时采用热重分析及扫描电镜等技术手段对生物质半焦/载氧体CuO的反应特性进行了实验研究.结果表明,载氧体CuO能有效促进生物质半焦的气化,随着反应温度的升高,生物质半焦气化效率提高,但当温度超过750 ℃,CuO载氧体开始出现烧结现象;其半焦/载氧体CuO的化学链气化最佳质量比为1:6.研究也发现,反应压力的增加对生物质半焦的化学链气化有一定的抑制作用.
- 化学链气化 /
- 松木半焦 /
- 热力学分析 /
- 热重分析
Abstract: Calculations of reactions between biomass char and oxygen carriers CuO were conducted via the method of Gibbs free energy minimization. The effect of temperature, mass ration of oxygen carrier/biomass char and pressure on the gasification of biomass char was examined. The reactions were experimentally investigated using thermogravimetric analysis and scanning electron microscopy (SEM). The results show that when using CuO as oxygen carrier in chemical looping gasification (CLG) of biomass char, the conversion rate of biomass char is improved with increasing reaction temperature. The oxygen carrier CuO starts to sinter when the reaction temperature is above 750 ℃. The addition of oxygen carrier has the best enhancement on the CLG of biomass char with mass ratio of biomass char/CuO being 1:6. It is also found that the increase of reaction pressure would inhibit the CLG of biomass chars.
- chemical-looping gasification /
- biomass char /
- thermodynamic calculations /
- thermogravimetric analysis

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参考文献(22)

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