文献类型：期刊文献

中文题名：抽提物的去除对生物质热解的影响研究

英文题名：Effect of the extractives removal on biomass pyrolysis

作者：胡亿明[1] 蒋剑春[1] 孙云娟[1,2] 杨中志[1]

第一作者：胡亿明

机构：[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源与材料重点实验室;[2]中国林业科学研究院林业新技术研究所

年份：2014

卷号：32

期号：3

起止页码：358-364

中文期刊名：可再生能源

外文期刊名：Renewable Energy Resources

收录：CSTPCD;;北大核心:【北大核心2011】；

基金：中国林科院院所基金项目(CAFYBB2011010);国家自然科学基金资助项目(31100521)

语种：中文

中文关键词：生物质;抽提物;管式炉;热解;GC—MS

外文关键词：biomass ; extractives ; tube furnace ; pyrolysis ; GC-MS

分类号：TK6;S216.2

摘要：利用惰性溶剂除去生物质中的可溶抽提物得到相应的抽提残渣,采用FT-IR对抽提残渣和生物质原样进行结构表征,并利用管式炉反应器以10℃/min的升温速率对抽提残渣和生物质原样进行热裂解实验,以了解它们的热裂解产物分布及热解规律。结果表明,抽提物的去除不会改变生物质的基本结构,对其热失重行为的影响也很小。热裂解三相产物中气体产物产率最大,达50%,其主要成分为H2,CO,CO2,CH4以及小分子烃类。与生物质原样相比,抽提残渣中的H2产率上升,而CO产率下降。液相产物中主要是酚类、烷烃类、四氢呋喃类、酮类、酸类、酯类、多环芳香类化合物和少量脱水单糖。其中酚类物质含量最多,超过55%。而且在抽提残渣的焦油产物中,酚类的总量和种类均比生物质原样多,其他类物质产率与生物质原样相比则有所减少。
Inert solvent was selected to remove soluble extractives from biomass and the corre-sponding extracted residue was obtained. FT-IR was also used to characterized the structure of ex- tracted residue and original biomass. The pyrolysis of extracted biomass and original biomass was respectively conducted in a tube furnace with heating rate of 10 ℃/min, to know the products dis- tribution and theirs mechanism. The results showed that removed the extractives does not change the biomass basic structure and has tiny change at the weight loss behavior between extracted residue and original biomass. The gas yield is the highest compared in the three states, about 50%, and its main components is H2, CO, CO2, CH4 and small molecule hydrocarbons. The extracted residue has more HE yield and less CO yield than original biomass.The liquid product is mainly consisted phenols, alkanes, tetrahydrofuran compounds, ketones, acids, esters, polycyclic aromatic compounds and small amount dehydration monosaccharides. Among which phenols accounted more than 55%, the extracted residue obtaines more phenols total content and type compared with origi-nal biomass. Simultaneity the other types species yield are less than the original biomass.