Two-step fast pyrolysis of torrefied corncobs and waste cooking oil under different atmosphere for hydrocarbons production

Qiuhao Wu; Wanhao Huang; Anqi Dai; Linyao Ke; Letian Zhang; Qi Zhang; Xian Cui; Liangliang Fan; Chuangxin Xu; Krik Cobb; Rongge Zou; Xiangwen Pan; Yuhuan Liu; Roger Ruan; Yunpu Wang

doi:10.1016/j.energy.2023.129535

Two-step fast pyrolysis of torrefied corncobs and waste cooking oil under different atmosphere for hydrocarbons production

Qiuhao Wu, Wanhao Huang, Anqi Dai, Linyao Ke, Letian Zhang, Qi Zhang, Xian Cui, Liangliang Fan, Chuangxin Xu, Krik Cobb, Rongge Zou, Xiangwen Pan, Yuhuan Liu, Roger Ruan, Yunpu Wang

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Biomass pyrolysis is a promising method to produce renewable energy, which can contribute to the realization of carbon neutrality. However, high oxygen content and complex composition hinder the utilization of bio-oil produced by biomass pyrolysis. A new technology, two-step fast pyrolysis of torrefied biomass derived from corncobs and waste cooking oil under CO₂ atmosphere, was studied to produce hydrocarbons-rich bio-oil. Results showed that two-step pyrolysis was beneficial to the initial separation of hydrocarbons and oxygen-laden compounds. And the synergy between the torrefied corncobs and waste cooking oil occurred primarily in the second step of the two-step pyrolysis. Application of CO₂ in the first step significantly decreased the total peak area of condensable organic compounds, but increased the relative content of hydrocarbons. No matter what atmosphere was used in the first step, the relative content of hydrocarbons during the application of CO₂ in the second step was lower. Using a CO₂ atmosphere in the first step gave better results, while using N₂ in the second step tended to maximize the hydrocarbons content. Combined with CO₂-assisted pyrolysis and stepwise pyrolysis, this paper provides a new idea for the thermal conversion of corncobs and waste cooking oil, to produce hydrocarbons.

Original language	English
Article number	129535
Journal	Energy
Volume	286
DOIs	https://doi.org/10.1016/j.energy.2023.129535
State	Published - Jan 1 2024
Externally published	Yes

Funding

This project was financially supported by the National Natural Science Foundation of China (No. 52166015 ), The Natural Science Foundation of Jiangxi Province ( 20212ACB215007 ), The Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province ( 20204BCJ23011 ), Jiangxi “Double Thousand Plan” ( jxsq2023201041 ), The Jiangxi Provincial Financial Science and Technology Special “contract-system” Pilot Demonstration Project ( ZBG20230418025 ).

Keywords

CO atmosphere
Corncob
Pyrolysis
Two-step pyrolysis
Waste cooking oil

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Cite this

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title = "Two-step fast pyrolysis of torrefied corncobs and waste cooking oil under different atmosphere for hydrocarbons production",

abstract = "Biomass pyrolysis is a promising method to produce renewable energy, which can contribute to the realization of carbon neutrality. However, high oxygen content and complex composition hinder the utilization of bio-oil produced by biomass pyrolysis. A new technology, two-step fast pyrolysis of torrefied biomass derived from corncobs and waste cooking oil under CO2 atmosphere, was studied to produce hydrocarbons-rich bio-oil. Results showed that two-step pyrolysis was beneficial to the initial separation of hydrocarbons and oxygen-laden compounds. And the synergy between the torrefied corncobs and waste cooking oil occurred primarily in the second step of the two-step pyrolysis. Application of CO2 in the first step significantly decreased the total peak area of condensable organic compounds, but increased the relative content of hydrocarbons. No matter what atmosphere was used in the first step, the relative content of hydrocarbons during the application of CO2 in the second step was lower. Using a CO2 atmosphere in the first step gave better results, while using N2 in the second step tended to maximize the hydrocarbons content. Combined with CO2-assisted pyrolysis and stepwise pyrolysis, this paper provides a new idea for the thermal conversion of corncobs and waste cooking oil, to produce hydrocarbons.",

keywords = "CO atmosphere, Corncob, Pyrolysis, Two-step pyrolysis, Waste cooking oil",

author = "Qiuhao Wu and Wanhao Huang and Anqi Dai and Linyao Ke and Letian Zhang and Qi Zhang and Xian Cui and Liangliang Fan and Chuangxin Xu and Krik Cobb and Rongge Zou and Xiangwen Pan and Yuhuan Liu and Roger Ruan and Yunpu Wang",

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year = "2024",

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doi = "10.1016/j.energy.2023.129535",

language = "English",

volume = "286",

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TY - JOUR

T1 - Two-step fast pyrolysis of torrefied corncobs and waste cooking oil under different atmosphere for hydrocarbons production

AU - Wu, Qiuhao

AU - Huang, Wanhao

AU - Dai, Anqi

AU - Ke, Linyao

AU - Zhang, Letian

AU - Zhang, Qi

AU - Cui, Xian

AU - Fan, Liangliang

AU - Xu, Chuangxin

AU - Cobb, Krik

AU - Zou, Rongge

AU - Pan, Xiangwen

AU - Liu, Yuhuan

AU - Ruan, Roger

AU - Wang, Yunpu

PY - 2024/1/1

Y1 - 2024/1/1

N2 - Biomass pyrolysis is a promising method to produce renewable energy, which can contribute to the realization of carbon neutrality. However, high oxygen content and complex composition hinder the utilization of bio-oil produced by biomass pyrolysis. A new technology, two-step fast pyrolysis of torrefied biomass derived from corncobs and waste cooking oil under CO2 atmosphere, was studied to produce hydrocarbons-rich bio-oil. Results showed that two-step pyrolysis was beneficial to the initial separation of hydrocarbons and oxygen-laden compounds. And the synergy between the torrefied corncobs and waste cooking oil occurred primarily in the second step of the two-step pyrolysis. Application of CO2 in the first step significantly decreased the total peak area of condensable organic compounds, but increased the relative content of hydrocarbons. No matter what atmosphere was used in the first step, the relative content of hydrocarbons during the application of CO2 in the second step was lower. Using a CO2 atmosphere in the first step gave better results, while using N2 in the second step tended to maximize the hydrocarbons content. Combined with CO2-assisted pyrolysis and stepwise pyrolysis, this paper provides a new idea for the thermal conversion of corncobs and waste cooking oil, to produce hydrocarbons.

AB - Biomass pyrolysis is a promising method to produce renewable energy, which can contribute to the realization of carbon neutrality. However, high oxygen content and complex composition hinder the utilization of bio-oil produced by biomass pyrolysis. A new technology, two-step fast pyrolysis of torrefied biomass derived from corncobs and waste cooking oil under CO2 atmosphere, was studied to produce hydrocarbons-rich bio-oil. Results showed that two-step pyrolysis was beneficial to the initial separation of hydrocarbons and oxygen-laden compounds. And the synergy between the torrefied corncobs and waste cooking oil occurred primarily in the second step of the two-step pyrolysis. Application of CO2 in the first step significantly decreased the total peak area of condensable organic compounds, but increased the relative content of hydrocarbons. No matter what atmosphere was used in the first step, the relative content of hydrocarbons during the application of CO2 in the second step was lower. Using a CO2 atmosphere in the first step gave better results, while using N2 in the second step tended to maximize the hydrocarbons content. Combined with CO2-assisted pyrolysis and stepwise pyrolysis, this paper provides a new idea for the thermal conversion of corncobs and waste cooking oil, to produce hydrocarbons.

KW - CO atmosphere

KW - Corncob

KW - Pyrolysis

KW - Two-step pyrolysis

KW - Waste cooking oil

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DO - 10.1016/j.energy.2023.129535

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SN - 0360-5442

VL - 286

JO - Energy

JF - Energy

M1 - 129535

ER -

Two-step fast pyrolysis of torrefied corncobs and waste cooking oil under different atmosphere for hydrocarbons production

Abstract

Funding

Keywords

UN SDGs

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