【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。更多还原

【Abstract】 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.更多还原