烘焙预处理对油茶果蒲热解的影响研究  

Effect of torrefaction pretreatment on pyrolysis of Camellia oleifera shell

作　　者：葛智颖 蒋绍坚[1] 李昌珠[2,3] 张爱华 赵梓成[2] 李培旺 肖志红[2,4] GE Zhiying;JIANG Shaojian;LI Changzhu;ZHANG Aihua;ZHAO Zicheng;LI Peiwang;XIAO Zhihong(School of Energy Science and Engineering,Central South University,Changsha 410083,Hunan,China;State Key Laboratory of Utilization of Woody Oil Resources,Hunan Academy of Forestry,Changsha 410004,Hunan,China;Key Laboratory of National Forestry and Grassland Administration on Utilization Science for Southern Woody Oil Resources,Changsha 410004,Hunan,China;Hunan Provincial Key Laboratory of Oils&Fats Molecular Structure and Function,Changsha 410004,Hunan,China)

机构地区：[1]中南大学能源科学与工程学院,湖南长沙410083 [2]湖南省林业科学院省部共建木本油料资源利用国家重点实验室,湖南长沙410004 [3]南方木本油料利用科学国家林业与草原局重点实验室,湖南长沙410004 [4]油脂分子构效湖南省重点实验室,湖南长沙410004

出　　处：《湖南林业科技》2022年第6期35-41,共7页Hunan Forestry Science & Technology

基　　金：长沙市创新平台与人才计划(kh2101007);湖南省林业科技创新计划项目(XLK202101-1);湖南省林业杰青项目(XLK202108-2)。

摘　　要：为了研究烘焙预处理对油茶果蒲热解过程的影响,揭示烘焙温度对油茶果蒲理化性质、热解特性的影响机制,通过选取210℃、240℃、270℃三种不同烘焙温度进行油茶果蒲烘焙实验,并对烘焙前后样品进行理化性质分析和热重分析。结果表明:烘焙预处理能提高油茶果蒲热值和能量密度;烘焙温度的提高使得最大失重速率对应的温度提高,残炭率提高,同时改变热解过程的主要反应机理;随着烘焙温度的提高,热解过程的表观活化能由195.17 kJ·mol^(-1)逐步提高到232.33 kJ·mol^(-1);烘焙预处理对油茶果蒲热解产生了显著影响。In this study,the effect of torrefaction pretreatment on the pyrolysis process of Camellia oleifera shell was investigated.The influence mechanism of torrefaction temperature on the physicochemical properties and pyrolysis characteristics of C.oleifera shell were revealed.Three terrefaction temperatures of 210℃,240℃,and 270℃were selected to explore the changes of physicochemical properties of C.oleifera shell samples.It was shown that torrefaction pretreatment could improve the calorific value and energy density of C.oleifera shell.The results of kinetic analysis showed that the activation energy of pyrolysis process increased from 195.17 kJ·mol^(-1)to 232.33 kJ·mol^(-1).Torrefaction pretreatment had a significant effect on the pyrolysis process of C.oleifera shell.

关 键 词：烘焙预处理 动力学分析 油茶果蒲 热解 热重分析 

分 类 号：TK6[动力工程及工程热物理—生物能]