摘要
以生物质烟梗为材料,对其燃烧特性进行了研究。采用热重分析仪同步热分析技术考察升温速率和粒径对生物质烟梗的热解反应和燃烧反应的影响。在热解反应和燃烧反应中升温速率对生物质烟梗的燃烧特性指数的影响规律大致为Sn(20 K/min)>Sn(15 K/min)>Sn(10 K/min)>Sn(5 K/min),但粒径为0.425 mm烟梗在在热解反应时燃烧特性指数随升温速率变化Sn(20 K/min)>Sn(15 K/min)>Sn(5 K/min)>Sn(10 K/min),燃烧反应时随升温速率的变化Sn(15 K/min)>Sn(20 K/min)>Sn(10 K/min)>Sn(5 K/min);同时考察粒径对燃烧特性指数的影响得出Sn(0.180 mm)>Sn(0.250 mm)>Sn(0.425 mm)。用Ozawa法计算生物质烟梗的表观活化能,得出生物质烟梗热解反应时的活化能大于燃烧反应时的活化能。
In this paper combustion characteristics of tobacco stalk was studied. Simultaneous thermal analysis technology was used to analyze the influence of heating rate and particle diameter. Then combustibility index and kinetic energy were obtained. The effect of combustion characteristic index during pyrolysis or combustion reaction tobacco stem of heating rate on biomass of tobacco stem is Sn(20 K/min) 〉Sn( 15 K/min) 〉Sn(10 K/min) 〉Sn(5 K/min). But the effect of with particle diameter 0.425 mm in pyrolysis is Sn(20 K/min) 〉 S. (15 K/min) 〉 Sn (5 K/min) 〉 Sn (10 K/min) and in combustion reaction is Sn(15 K/min) 〉 S. (20 K/min) 〉 Sn (10 K/min) 〉 Sn(5 K/min). At the same time, the effect of particle diameter on combustion characteristic index is Sn(0. 180 mm) 〉Sn(0.250 mm) 〉Sn(0.425 mm).
出处
《生物质化学工程》
CAS
2013年第1期39-44,共6页
Biomass Chemical Engineering
基金
中国烟草总公司科技重大专项项目(110201001001)
云南中烟工业公司科技开发计划(2010JC04)
云南省创新团队建设项目(2009CI014)
关键词
热重分析仪
燃烧特性
粒径
升温速率
Pyrolysis
combustion characteristic index
particle diameter
heating rate