Microwave-assisted catalytic pyrolysis of corn cobs with Fe-modified Choerospondias axillaris seed-based biochar catalyst for phenol-rich bio-oil

Zihong Zeng, Xiaojie Tian, Yunpu Wang, Xian Cui, Qi Zhang, Leilei Dai, Yuhuan Liu, Rongge Zou, Jun Chen, Jiyan Liu, Roger Ruan

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

In order to develop a more economical and easy-to-recover catalyst, this study prepared Fe-modified biochar catalyst by microwave pyrolysis carbonization and impregnation, and applied it to microwave catalysis pyrolysis of corn cobs to prepare phenol-rich bio-oil. The results showed that H3PO4 can greatly increase the specific surface area of the biochar catalyst. The Fe-modified biochar catalyst promoted the conversion of aldehydes and ketones in corn cobs bio-oil, thereby greatly increasing the content of phenolic compounds. Among them, Fe0.4@biochar had the best selectivity to phenol, approximately 16.45 area%. Fe0.2@biochar had the best selectivity to furfural, which was 10.68 area%. After repeated use for 5 times, the catalytic effect was still selective to phenolic compounds.

Original languageEnglish (US)
Article number105306
JournalJournal of Analytical and Applied Pyrolysis
Volume159
DOIs
StatePublished - Oct 1 2021

Bibliographical note

Funding Information:
This project is financially supported by the National Natural Science Foundation of China ( 21766019 ), The Centrally Guided Local Science Technology Special Project ( 20202ZDB01012 ), The Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province ( 20204BCJ23011 ), Key Research and Development Program of Jiangxi Province ( 20171BBF60023 ), Natural Science Foundation of Jiangxi Province ( 20181BAB206030 ).

Publisher Copyright:
© 2021 Elsevier B.V.

Keywords

  • Biochar
  • Catalyst
  • Choerospondias axillaris seeds
  • Fe modification
  • Oxygen vacancies
  • Phenol-rich bio-oil

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