甘蔗渣热解特性及产物分析  

Pyrolysis characteristics and product analysis of bagasse

作　　者：马楠 曹越 孙军[3] MA Nan;CAO Yue;SUN Jun(Nanjing Branch of Jiangsu United Vocational and Technical College,Nanjing 210019,China;Haian Zhongying Plasma Technology Co.,Ltd.,Nantong 226600,China;Nanjing Forestry University,Nanjing 210019,China)

机构地区：[1]江苏联合职业技术学院南京分院,江苏南京210019 [2]海安中楹等离子体科技有限公司,江苏南通226600 [3]南京林业大学,江苏南京210019

出　　处：《能源环境保护》2021年第3期7-11,共5页Energy Environmental Protection

基　　金：国家重点研发计划课题(2016YFD0600703)。

摘　　要：为优化甘蔗渣快速热解工艺并提取高附加值精细化工产品,采用热重分析和热裂解-气质联用分析方法研究了甘蔗渣热解过程及其热解产物。结果表明:甘蔗渣热解过程可分为干燥失水、快速热解、炭化三个阶段;快速热解为甘蔗渣热解的主要阶段,试样失重高达75%,提高升温速率有利于加快热解反应;甘蔗渣在600℃终温下热裂解特征产物共82种,主要成分为有机抽提剂、芳香化合物、烯烃类、杂环化合物类、羰基化合物、烷烃类;硬脂酸和棕榈酸为最主要成分,含量占比分别为25.6%和10.58%;主要特征产物为2-阿氨基乙醇酯、糠醛、2-(十八氧基)乙醇、油酸、异戊二烯、环十四烷、十八烯、硬酯酸甲酯。In order to optimize the rapid pyrolysis process of bagasse and extract high value-added fine chemical products,the thermogravimetric analysis and pyrolysis-GC-MS analysis methods were used to study the pyrolysis process and pyrolysis products of bagasse.The results show that the pyrolysis process of bagasse can be divided into three stages:drying dehydration,rapid pyrolysis and carbonization.The rapid pyrolysis stage is the main pyrolysis stage,and the weight loss of the sample is as high as 75%.Increasing the heating rate is conducive to accelerating the pyrolysis reaction.There are 82 kinds of characteristic products of bagasse pyrolysis at 600℃,mainly including organic extractant,aromatic compounds,olefins,heterocyclic compounds,carbonyl compounds,alkanes.Stearic acid and palmitic acid are the main components,accounting for 25.6%and 10.58%,respectively.The main characteristic products are 2-aminoethanol ester,furfural,2-(octadoxy)ethanol,oleic acid,isoprene,cyclotetradecane,octadecene,methyl stearate.

关 键 词：甘蔗渣 热解 PY-GC/MS分析 

分 类 号：X792[环境科学与工程—环境工程]