硫酸盐法制浆黑液中主要有机组分的热解特性研究

戴涛; 武书彬; 郭大亮

硫酸盐法制浆黑液中主要有机组分的热解特性研究

1.
华南理工大学制浆造纸工程国家重点实验室, 广东广州 510640;
2.
中国科学院广州能源研究所可再生能源与天然气水合物重点实验室, 广东广州 510640

基金项目: 国基自然科学基金(21176095); 科技部"科技支撑计划"(2012AA101806);中国科学院可再生能源与天然气水合物重点实验室开发基金(y207k1)。

详细信息

通讯作者:
武书彬(1965-),男,教授,E-mail:shubinwu@scut.edu.cn;Tel:+8602022236808;Fax:+8602022236808。

中图分类号: TK6
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- 文章访问数: 1621
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出版历程
- 收稿日期: 2012-07-06
- 修回日期: 2012-09-26
- 刊出日期: 2013-02-28

Pyrolysis characteristics of main organic components of kraft pulping black liquor

1.
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China;
2.
The Renewable Energy and Gas Hydrate Key Lab of CAS, Guangzhou Institute of Energy Conversion, Chinese Academy Sciences, Guangzhou 510640, China

摘要

摘要: 采用管式炉对硫酸盐法竹子、阔叶木混合制浆黑液固形物(BLS)及其三种主要组分碱木素(AL)、多糖(PLS)和木素-碳水化合物复合体(LCC),在400~800℃进行热解,全面分析了各相热解产物组成与分布规律。结果表明,BLS及其三种主要组分的热解产物组成与分布规律存在明显差异。AL、PLS和LCC对BLS热解产生H₂和CO的产率影响不大,PLS热解生成CO₂的能力明显高于BLS、AL和LCC。BLS热解液相产物中的酚类和醚类主要是来自AL和LCC;酮类和酸类是由AL、PLS和LCC共同贡献的。BLS、AL、PLS和LCC热解半焦表面形貌存在明显差异。在BLS热解过程中,AL、PLS和LCC会相互影响、相互制约,共同决定着BLS的热解特性。
- 黑液 /
- 碱木质素 /
- 多糖 /
- 木素-碳水化合物复合体 /
- 热解
Abstract: The pyrolysis characteristics of black liquor solids (BLS) and three major organic components including alkali lignin (AL), polysaccharide (PLS) and lignin-carbohydrate complexes (LCC))were studied in a tubular furnace at 400~800℃ with 100℃ interval. The component distribution characteristics of the tar and gas were analyzed by gas chromatography with mass spectrometry (GC/MS) and gas chromatography (GC). The surface morphology and chemical structure groups of char were characterized by scanning electron microscopy (SEM) and Fourier Transforms Infrared Spectroscopy (FT-IR). The results show that the composition and distribution rules of pyrolysis products from BLS and its organic components pyrolysis are obviously different. AL, PLS and LCC have little effect on the yields of H₂ and CO from BLS pyrolysis. The yield of CO₂ from PLS pyrolysis is significantly higher than that from BLS, AL and LCC. Phenols and ethers in liquid products of BLS pyrolysis are mainly from the AL and LCC. Ketones and acids were resulted from AL, PLS, and LCC. The surface morphology of the BLS, AL, PLS, and LCC pyrolysis char is significant different. AL, PLS, and LCC affect each other in BLS pyrolysis process, and determine its pyrolysis characteristics together.
- black liquor /
- alkali lignin /
- polysaccharide /
- lignin-carbohydrate complexes /
- pyrolysis

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参考文献(14)

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硫酸盐法制浆黑液中主要有机组分的热解特性研究

通讯作者:
武书彬(1965-),男,教授,E-mail:shubinwu@scut.edu.cn;Tel:+8602022236808;Fax:+8602022236808。

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Pyrolysis characteristics of main organic components of kraft pulping black liquor

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留言板

硫酸盐法制浆黑液中主要有机组分的热解特性研究

通讯作者: 武书彬(1965-),男,教授,E-mail:shubinwu@scut.edu.cn;Tel:+8602022236808;Fax:+8602022236808。

计量

出版历程

Pyrolysis characteristics of main organic components of kraft pulping black liquor

计量

出版历程

目录

2023年《燃料化学学报（中英文）》评优结果公布！

通讯作者:
武书彬(1965-),男,教授,E-mail:shubinwu@scut.edu.cn;Tel:+8602022236808;Fax:+8602022236808。