Co-Pyrolysis Characteristics of Lignin and Lignite: Analytical Py-GC-MS Study

HUANG Yu-qian; WU Yu-ting; ZHENG An-qing; ZHAO Zeng-li; LI Hai-bin

doi:10.3969/j.issn.2095-560X.2017.05.002

Advances in New and Renewable Energy >

2017 , Vol. 5 >Issue 5: 333 - 340

DOI: https://doi.org/10.3969/j.issn.2095-560X.2017.05.002

Co-Pyrolysis Characteristics of Lignin and Lignite: Analytical Py-GC-MS Study

HUANG Yu-qian ,
WU Yu-ting ,
ZHENG An-qing ,
ZHAO Zeng-li ,
LI Hai-bin

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1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. School of Electric Power, South China University of Technology, Guangzhou 510640, China;
4. CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China;
5. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China

Received date: 2017-07-26

Revised date: 2017-09-08

Online published: 2017-10-30

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Abstract

Lignin has a similar structure to lignite, liquid fuel and high value-added chemicals can be extracted from their co-pyrolysis liquid, and the pyrolysis coke can be used for further implementation of gasification. In this study, pine lignin, eucalyptus lignin and alkali lignin were selected, and the co-pyrolysis experiment with lignite was carried out respectively by Py-GC-MS at different mixing ratios. The synergistic effect of co-pyrolysis was investigated by analyzing the distribution of pyrolysis products. The experimental results showed that the pyrolysis products changed greatly with the mixing ratio and the types of materials added. In the co-pyrolysis of lignite and lignin, the higher hydrogen to carbon ratio of lignin can promote the yield of some specific products such as p-cresol, while the alkali and alkaline earth metals in alkali lignin also play an important catalytic role. Therefore, the yield of 2-methoxy-phenol, and creosol was enhanced.

Key words： lignite; lignin; co-pyrolysis; Py-GC-MS

Cite this article

HUANG Yu-qian , WU Yu-ting , ZHENG An-qing , ZHAO Zeng-li , LI Hai-bin . Co-Pyrolysis Characteristics of Lignin and Lignite: Analytical Py-GC-MS Study[J]. Advances in New and Renewable Energy, 2017 , 5(5) : 333 -340 . DOI: 10.3969/j.issn.2095-560X.2017.05.002

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