Experimental study on catalytic pyrolysis of lignin under char and ZSM-5 for preparation of aromatics

ZHAO Bo; WU Kai; ZHONG Li-peng; WEI Gang; HU Zong-hua; ZHENG Wen-guang; RUAN Hui-feng; YAN Xin-ming; MA Yin; WANG Bo; JIANG Tian-lin; ZHANG Hui-yan

doi:10.1016/S1872-5813(21)60015-4

Volume 49 Issue 3

Mar. 2021

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Article Navigation > Journal of Fuel Chemistry and Technology > 2021 > 49(3): 303-310

ZHAO Bo, WU Kai, ZHONG Li-peng, WEI Gang, HU Zong-hua, ZHENG Wen-guang, RUAN Hui-feng, YAN Xin-ming, MA Yin, WANG Bo, JIANG Tian-lin, ZHANG Hui-yan. Experimental study on catalytic pyrolysis of lignin under char and ZSM-5 for preparation of aromatics[J]. Journal of Fuel Chemistry and Technology, 2021, 49(3): 303-310. doi: 10.1016/S1872-5813(21)60015-4

Citation:

ZHAO Bo, WU Kai, ZHONG Li-peng, WEI Gang, HU Zong-hua, ZHENG Wen-guang, RUAN Hui-feng, YAN Xin-ming, MA Yin, WANG Bo, JIANG Tian-lin, ZHANG Hui-yan. Experimental study on catalytic pyrolysis of lignin under char and ZSM-5 for preparation of aromatics[J]. Journal of Fuel Chemistry and Technology, 2021, 49(3): 303-310. doi: 10.1016/S1872-5813(21)60015-4

Citation:

ZHAO Bo, WU Kai, ZHONG Li-peng, WEI Gang, HU Zong-hua, ZHENG Wen-guang, RUAN Hui-feng, YAN Xin-ming, MA Yin, WANG Bo, JIANG Tian-lin, ZHANG Hui-yan. Experimental study on catalytic pyrolysis of lignin under char and ZSM-5 for preparation of aromatics[J]. Journal of Fuel Chemistry and Technology, 2021, 49(3): 303-310. doi: 10.1016/S1872-5813(21)60015-4

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Experimental study on catalytic pyrolysis of lignin under char and ZSM-5 for preparation of aromatics

doi: 10.1016/S1872-5813(21)60015-4

1.
Key Laboratory of Energy Thermal Conversion and Control Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
2.
China Huadian Guangxi Company, Nanning 530029, China
3.
Huadian Electric Power Research Institute Co.Ltd, Hangzhou 310030, China
4.
Key Laboratory of Energy Storage and Building Energy-saving Technology of Zhejiang Province, Hangzhou 310030, China

Funds: The project was supported by the National Key Research and Development Program of China (2019YFD1100602), the National Nature Science Fund for Excellent Young Scholar (China) (51822604) and the Nature Science Fund of Jiangsu Province for Distinguished Young Scholar (China) (BK20180014)

Received Date: 2020-10-19
Rev Recd Date: 2020-11-19

Available Online: 2021-03-19

Publish Date: 2021-03-19

Abstract

Abstract

In order to improve yield of aromatics from catalytic pyrolysis of lignin, alkali lignin was used for rapid pyrolysis experiments under a binary catalysis system of alkali lignin char and ZSM-5. Influence of catalyst ratio and pyrolysis temperature as well as pyrolysis time on aromatics quantity and mechanism of synergistic catalysis of alkali lignin char and ZSM-5 were investigated. The results show that quantity of aromatics has increased from 17 mg/g (without char) to 33 mg/g (with char addition of 1 g), which is about doubled. The optimal conditions for preparation of aromatics are under alkali lignin∶alkali lignin char∶ZSM-5=1∶1∶1 at 500℃ for 10 min. Meanwhile, the mechanism analysis shows that alkali lignin char mainly plays a role in bond breaking during pyrolysis, while ZSM-5 can act as selective aromatization to obtain higher aromatics yield, whose synergistic effects result in higher aromatic yield.
- alkali lignin,
- alkali lignin char,
- binary catalytic system,
- aromatics,
- synergy

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References(28)

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