文献类型：期刊文献

中文题名：稻壳与褐煤共热解过程的TG-FTIR分析

英文题名：TG-FTIR ANALYSIS OF CO-PYROLYSIS OF RICE HUSK AND LIGNITE

作者：赵淑蘅[1] 蒋剑春[1] 孙云娟[1] 胡亿明[1] 徐凡[1]

第一作者：赵淑蘅

机构：[1]中国林业科学研究院林产化学工业研究所江苏省生物质能源与材料重点实验室国家林业局林产化学工程重点开放性实验室生物质化学利用国家工程实验室,南京210042

年份：2013

卷号：36

期号：1

起止页码：19-23

中文期刊名：煤炭转化

外文期刊名：Coal Conversion

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金资助项目(31100521);江苏省生物质能源与材料重点实验室开放基金资助项目(JSBEM201208);林业公益性行业专项项目(200904062)

语种：中文

中文关键词：稻壳;褐煤;共热解;TG-FTIR;协同作用

外文关键词：rice husk, lignite, co-pyrolysis, TG-FTIR, synergistic effect

分类号：TQ530.2;TQ533.6

摘要：利用TG-FTIR技术对稻壳与褐煤按照不同比例进行的共热解过程进行分析.结果发现,共热解过程的热失重相对于单独热解有所加深,尤其是在稻壳与褐煤按照2∶8比例进行共热解时;共热解过程的热解产物发生变化,其中CO2产物增加明显,CH4产物略有减少,CO产物略有增加,其他有机化合物如酚类化合物、含羰基结构化合物和含芳环结构的化合物都有所减少.根据共热解产物变化规律和生物质与褐煤单独热解反应的机理,分析共热解过程中二者发生协同作用的原因是:生物质中的金属氧化物对煤炭黏结成焦炭过程有抑制作用,从而促进了煤炭的进一步分解;并且在慢速共热解过程中生物质相对于煤炭先产生H2,而H2的存在抑制了煤炭在高温时的缩合反应,从而加强了其裂解反应.
ABSTRACT TG-FTIR was used to analyze the co-pyrolysis process of rice husk and lignite. It was found that the co-pyrolysis mass lost were larger than mono-pyrolysis, especially when mixed ratio of rice husk and lignite was 2 ： 8. The co-pyrolysis products component changed, with COz increased, CH4 decreased, CO increased a little, while other organic compounds like phenols, carbonyl compounds, and aromatic compound all decreased a little. The mechanism of co-pyrolysis process was investigated. The metallic oxide in biomass could restrain the process of coal bond into coke so biomass and coal co-pyrolysis process took place the synergistic effect; thus it contributes to the further decomposition of coal. In addition, the biomass generates H2 earlier than coal during co-pyrolysis, and the condensation reaction of coal at high temperature is inhibited because of H2 ; so the prolysis of coal is promoted. KEY WORDS rice husk, lignite, co-pyrolysis, TG-FTIR, synergistic effect