热解条件对杉木热解产物得率的影响  

Effect of Pyrolysis Condition on the Products Yields of China Fir

作　　者：秦建雨 张梦圆[1] 龚馨圆 韩丰登 伊松林[1] 

机构地区：[1]北京林业大学材料科学与技术学院木材科学与工程北京市重点实验室,北京100083

出　　处：《干燥技术与设备》2015年第6期16-20,共5页

基　　金："北京市大学生科学研究与创业行动计划"项目(S201410022056)

摘　　要：为了优化木材热解工艺,以广西杉木为试验试材,在热解终点温度分别为450℃、600℃、750℃,平均升温速率分别为100℃/h、150℃/h和200℃/h的热解条件下,对杉木进行热解处理,计算产物得率。研究结果表明:随着热解温度的升高和升温速率的加快,杉木木炭产率呈下降趋势,而醋液的产率呈上升趋势,当炭化温度分别为450℃、600℃、750℃时,木炭的平均产率依次为36.03%,33.75%,28.99%,醋液的平均产率依次为31.90%,33.61%,35.17%。在生产中,为了提高醋液产率可以适当提高温度,反之可以增大木炭产率。In order to optimize wood pyrolysis, China fir was taken as specimen and pyrolyzed in the environment with ending temperature 450℃, 600℃ and 750℃ and average heating rate 100℃ /h, 150℃ / h and 200℃ / h, respectively. Then the product yields were calculated and compared. The results showed that, with the increase of the pyrolysis temperature and heating rate, the charcoal yield declined while the vinegar yield rose. The average charcoal yields were 36.03%, 33.75% and 28.99% and the average vinegar yields were 31.90%, 33.61% and 35.17% when the process temperature was 450 ℃, 600 ℃ and 750 ℃, respectively. In the industry production, properly increasing the temperature could lead to higher vinegar yield, while higher charcoal yield on the contrary.

关 键 词：生物质热解 杉木 产物得率 

分 类 号：S216.2[农业科学—农业机械化工程]