摘要
为了实现毛竹资源的高效利用，提高毛竹热解过程中高附加值化学品的产率，利用快速热裂解-色谱/质谱联用仪（Py-GC/MS）从热解温度、热解时间和预处理方式3个方面对毛竹的快速热解特性进行了研究。结果表明：温度是影响毛竹热解产物的重要因素，热解温度在350～800℃之间时，随着热解温度的提高，热解产物种类增多，各产物产率不同程度地增加，在600℃热解时，目标产物产率达到最大值；延长热解时间，产物的产率增加，但最终会趋于恒定；碱洗可以提高热解对酚类产物的选择性，而且碱性越强选择性越好，但是碱洗会使热解产物的产率降低。
In order to efficiently utilize bamboo resources and increase the yield of high value-added products, pyrolysis-gas chromatography-mass spectrometry（Py-GC/MS） was used to study the influence of temperature, time and pretreatment on pubescens pyrolysis. Temperature had an important effect on the pyrolysis process. With the increase of temperature in the range of 350-800℃, an increasing variety of products was obtained, and the total yield of products increased with the highest yield of target products at 600℃. The total yield of products increased with pyrolysis time until it reached a maximum. Alkali washing could improve the selectivity for phenols, but higher selectivity with stronger basic solution could decrease the yield of products after alkali washing.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2014年第8期3237-3242,共6页
CIESC Journal
基金
国家重点基础研究发展计划项目(2013CB228103)
国家自然科学基金项目(50930006)
中国科学院重点部署项目(KGZD-EW-304-3)~~
关键词
毛竹
热解
选择性
色谱
预处理
pubescens
pyrolysis
selectivity
chromatography
pretreatment
