中国造纸2012，Vol.31Issue(10)：32-36,5.
桉木化学机械浆碱木素热解特性初步研究
Pyrolysis Characteristics of Alkali Lignin from Eucalyptus Mechanical Pulping Waste Liquor
摘要
Abstract
The alkali lignin was separated from eucalyptus alkaline peroxide mechanical pulping (APMP) spent liquor by acid precipitating method. Then the pyrolysis characteristics of the alkali lignin were investigated using a thermogravimetric analyzer (TGA) and the releasing mechanisms of main volatile products during pyrolysis were on-line measured by Fourier Transform Infrared (FTIR) Spectrometer. The TG results showed that the pyrolysis of alkali lignin could be approximately described by three stages, which included glass transition stage, main pyrolysis stage, and residue decomposition stage. The FTIR results indicated that H2O, CO2, CO, CH4, aldehydes and ketones, alcohols and phenols were the main volatile products at the main pyrolysis stages. CO and CO2 were main products after 2000 s. It was also obvious that CH4, aldehydes and ketones, alcohols and phenols were released concentrically in 300 ～ 600℃ with considerably high yield.关键词
APMP/碱木素/TG-FTIR/热解特性Key words
APMP/ alkali lignin/ TG-FTIR/ pyrolysis characteristic分类
能源科技引用本文复制引用
赵玉双,武书彬,郭大亮..桉木化学机械浆碱木素热解特性初步研究[J].中国造纸,2012,31(10):32-36,5.基金项目
国基自然科学基金(No.21176095) （No.21176095）
科技部"科技支撑计划"项目(No.2012AA101806) （No.2012AA101806）
广东省科技计划项目(No.2011A090200006). （No.2011A090200006）
