文献类型：期刊文献

中文题名：改性生物质热解油的组成及特性

英文题名：RESEARCH ON THE COMPOSITIONS AND PROPERTIES OF UPGRADED PYROLYSIS OIL

作者：徐俊明[1] 蒋剑春[1] 孙云娟[1] 陈洁[1]

第一作者：徐俊明

通信作者：Jiang, J.

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能源与材料重点实验室

年份：2010

卷号：31

期号：2

起止页码：253-256

中文期刊名：太阳能学报

外文期刊名：Acta Energiae Solaris Sinica

收录：CSTPCD;;EI(收录号：20101912918089);Scopus(收录号：2-s2.0-77951927502);北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金："十一五"国家科技支撑计划重点项目(2006BAD07A03);国家自然科学基金(30671649);江苏省自然科学基金(BK2009545);国家林业局公益性行业专项经费(CAFINT 2008C03)

语种：中文

中文关键词：生物质;热解;生物油;精制;反应;酯;醚

外文关键词：biomass; pyrolisis; bio-oil; upgrading; reaction; ester; ether

分类号：TK6

摘要：针对影响生物质热解油性质的主要官能团,以苄基氯为改性剂,在相转移催化剂的作用下,将热解油中的羧酸基团和酚羟基转化为酯类、醚类化合物。由于亲水基团转化为疏水性基团,改性后的生物油与原料油相比,具有明显的疏水性质,显著降低了含水量(由33.00%降至0.83%);由于影响pH值的羧基转化为酯基,pH值由2.82提升至5.72;基团的转化还降低了含氧量,提高了热值(由14.3MJ/kg提升至31.7MJ/kg)。经过GC-MS、FT-IR分析,原油中羧酸和酚类化合物大部分转化为相应的酯化产物和醚化产物。结合分析结果,探讨了改性过程的反应机理及副反应机理。
Using benzyl chloride and bio-oil as raw materials,upgraded bio-oil was obtained by converting phenolic hydroxyl and carboxyl group into ether and ester under phase transform catalyst,and became water insoluble as the hydro-philic radicals were changed into hydrophobic radicals.Therefore,water content was reduced from 33.00% to 0.83%.The gross calorific value increased from 14.3 to 31.7MJ/kg because oxygen content decreased after upgrading process.Acidity of upgraded bio-oil was also alleviated from 2.82 to 5.72 due to converting carboxyl group into ester.The results of GC-MS and FT-IR analysis showed that the organic acids and phenolic compounds were converted into corresponding esters and ethers.