文献类型：期刊文献

中文题名：生物质气流床气化前的处理工艺

英文题名：Pretreatment Technology of Biomass Entrained Flow Gasification

作者：张巍巍[1];曾国勇[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：7

期号：4

起止页码：747

中文期刊名：过程工程学报

外文期刊名：The Chinese Journal of Process Engineering

收录：CSTPCD;;EI(收录号：20073710810901);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：生物质;气流床气化;慢速热解;半焦

外文关键词：biomass; entrained flow gasification; slow pyrolysis; semi-char

摘要：针对生物质气化过程面临的问题,利用慢速热解方法作为生物质气流床气化的前处理工艺并考察其可行性.分析讨论了热解后半焦的化学组成和输送特性,并使用ASPEN PLUS模拟软件计算比较了原料与半焦的气化结果.结果表明,半焦的能量密度随热解温度的升高而升高;热解温度在300～400℃之间,半焦的质量产率和能量产率对于气化工艺比较有利;热解后半焦的内摩擦角、休止角明显降低,堆积密度明显提高.使用ASPENPLUS模拟软件进行计算比较,热解温度为400℃时的气化效果最理想.
Slow pyrolysis as the pretreatrnent technology before biomass entrained flow gasification was experimentally studied, and its feasibility assessed. The chemical composition and conveying characters of semi-char produced in the pretreatrnent were analyzed. At the same time, the entrained flow gasification results ofbiomass and semi-char were compared based on ASPEN PLUS software. The results show that the energy density of semi-char increases with the pyrolysis temperature. The mass and energy yields of semi-char are beneficial to the biomass entrained flow gasification with the pyrolysis temperatures between 300 and 400 ~C. The angle of internal friction and angle of repose decrease obviously with increasing the pyrolysis temperature. And the bulk density of semi-char is improved evidently with increasing the pyrolysis temperature. Based on the analysis with ASPEN PLUS, the entrained flow gasification result is most ideal when the pyrolysis temperature is 400 ℃.