Enhancing the production of light olefins and aromatics from catalytic fast pyrolysis of cellulose in a dual-catalyst fixed bed reactor

Mingfa Yang; Jingai Shao; Haiping Yang; Kuo Zeng; Zhengshun Wu; Yingquan Chen; Xiaowei Bai; Hanping Chen

doi:10.1016/j.biortech.2018.11.005

Enhancing the production of light olefins and aromatics from catalytic fast pyrolysis of cellulose in a dual-catalyst fixed bed reactor

Bioresour Technol. 2019 Feb:273:77-85. doi: 10.1016/j.biortech.2018.11.005. Epub 2018 Nov 3.

Authors

Mingfa Yang¹, Jingai Shao², Haiping Yang¹, Kuo Zeng³, Zhengshun Wu⁴, Yingquan Chen¹, Xiaowei Bai⁵, Hanping Chen⁵

Affiliations

¹ State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
² Department of New Energy Science and Engineering, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 523000, China. Electronic address: jashao@hust.edu.cn.
³ Department of New Energy Science and Engineering, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
⁴ Chemistry College, Central China of Normal University, Wuhan 430079, China.
⁵ State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; Department of New Energy Science and Engineering, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.

PMID: 30415072
DOI: 10.1016/j.biortech.2018.11.005

Abstract

In this study, the effects of a macroporous catalyst (CaO), mesoporous catalyst (MCM-41), and microporous catalysts (ZSM-5 and SAPO-34) on the production of light olefins and aromatics from cellulose catalytic fast pyrolysis were investigated in a dual-catalyst fixed bed reactor. Further the fractional catalytic pyrolysis of MCM-41 or CaO with ZSM-5 or SAPO-34 was explored. The results showed that ZSM-5 was the most efficient catalyst for the formation of light olefins and aromatics followed by MCM-41, CaO and SAPO-34, and no aromatics were found with SAPO-34 only. Moreover, 15% CaO combined 85% ZSM-5 produced the highest yield of light olefins (5.59%) and aromatic (13.42%). The addition of CaO and MCM-41 promoted the selectivity of C₂H₄ and decreased the production of naphthalene.

Keywords: Aromatics; Catalytic pyrolysis; Cellulose; Light olefins.

MeSH terms

Alkenes / chemistry*
Biomass
Catalysis
Cellulose / chemistry*
Pyrolysis
Silicon Dioxide / chemistry
Zeolites / chemistry

Substances

Alkenes
MCM-41
SAPO-34
ZSM-5 zeolite
Zeolites
Silicon Dioxide
Cellulose