详细信息
文献类型:期刊文献
中文题名:稻秆热解固体产物的性能
英文题名:Properties of Solid Product of Straw Pyrolysis
作者:张巍巍[1];曾国勇[1];傅海燕[1];陈雪莉[1];于遵宏[1]
机构:[1]华东理工大学洁净煤技术研究所,上海200237
年份:2007
卷号:33
期号:2
起止页码:219
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;EI(收录号:20072210628430);Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:稻秆;慢速热解;半焦;热值;元素分析
外文关键词:rice straw; slow pyrolysis; semi-char; higher heating value; elemental analysis
摘要:稻秆热解的目的是为了脱除氧元素,增加能量密度,并将热解的固体产物作为生物质气流床气化原料,从而提高气化合成气的热值。稻秆在管式电阻炉中以5℃/min和15℃/min的升温速率进行慢速热解,热解温度为200~800℃。利用自动量热仪和元素分析仪对热解后固体产物进行热值和元素分析。结果表明:同一热解温度下,升温速率越快,半焦的热值越高;碳元素的含量随着热解温度的升高逐渐增加,而氢和氧两种元素的含量随着热解温度的升高逐渐降低。同时,推导出热值与半焦中各元素含量的关系式。
Rice straw was pyrolyzed to remove its water and volatile constituents to form a solid product of high energy density, which employed as the gasification feed, resulted in a biosyngas of higher heating value. Series of pyrolysis experiments were carried out in a tube furnace to determine the effects of heating rate (5-15 ℃/ min) and pyrolysis temperatures (200-800℃) on composition and higher heating value of the semi-char product. Increasing the heating rate and/or the pyrolysis temperature produced less semi-char of higher heating value due to its higher carbon content. Empirical its composition of C, H, O, N, S, formula was established to correlate the semi-char's higher heating value and and ash (mass percent).
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