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浙江大学学报(工学版)
浙江大学学报(工学版)
能源与机械工程     
生物质高温气流床分级气化特性
陈超, 周劲松, 项阳阳, 顾珊, 骆仲泱
浙江大学 能源清洁利用国家重点实验室,浙江 杭州 310027
Biomass staged-gasification characteristics in high-temperature entrained-flow bed
CHEN Chao, ZHOU Jin-song, XIANG Yang-yang, GU Shan, LUO Zhong-yang
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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摘要：

为了满足生物质间接液化中对合成气组成的要求,特别是H2与CO体积比要达到1.0～2.0,采用生物质低温热解炉结合高温气流床的生物质分级气化系统,研究气流床分级气化方式对生物质气化合成气的影响.针对温度、一次气化时间等因素,研究合成气组分、H2与CO体积比、碳转化率、气化效率以及焦油质量浓度等方面的变化情况.结果表明,生物质分级气化和温度的升高均能够提高H2与CO体积比.生物质分级气化系统的最佳工况是一次气化时间为0.6 s,当气化温度为1 100 ℃时,此时气化效果最好,气化效率达到75%,H2与CO体积比可达1.22,碳转化率达到96.3%.分级气化合成气中焦油质量浓度比传统气化明显减少,从5.46 g/m3 降低到了50 mg/m3.
Abstract:

The raw material requirements for the indirect liquefaction of biomass are strict. The volume ratio of H2 to CO must be greater than or equal to 1.0～2.0. The effect on biomass gasification syngas in staged-gasification of biomass was analyzed. Biomass staged-gasification system contained low temperature biomass pyrolysis furnace and high temperature entrained-flow bed. Influence factors were studied including gasification temperature and first gasification time. The result investigation contained composition of syngas, volume ratio of H2 to CO, carbon conversion ratio, gasification efficiency and tar mass concentration. Results show that staged-gasification and increasing temperature can enhance the volume ratio of H2 to CO. The optimum condition of staged gasification was the first gasification time at 0.6 s and gasification temperature at 1 100 ℃. The result was best in the conditions. Gasification efficiency was up to 75%, the volume ratio of H2 to CO reached the maximum at 1.22, and carbon conversion was up to 96.3%. The tar mass concentration was decreased from 5.46 g/m3 to 50 mg/m3.
出版日期: 2015-04-01
:  TK 6  
基金资助:

国家“973”重点基础研究发展规划资助项目（2013CB228100）；国家自然科学基金资助项目（51336008）
通讯作者: 周劲松,男,教授,博导     E-mail: zhoujs@zju.edu.cn
作者简介: 陈超（1984—）,男,博士生,从事生物质气化的研究.E-mail: chenc034@zju.edu.cn
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引用本文:

陈超, 周劲松, 项阳阳, 顾珊, 骆仲泱. 生物质高温气流床分级气化特性[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2015.04.003.

CHEN Chao, ZHOU Jin-song, XIANG Yang-yang, GU Shan, LUO Zhong-yang. Biomass staged-gasification characteristics in high-temperature entrained-flow bed. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2015.04.003.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2015.04.003    或    http://www.zjujournals.com/eng/CN/Y2015/V49/I4/626

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