Synthesis of CaO from waste shells for microwave-assisted catalytic pyrolysis of waste cooking oil to produce aromatic-rich bio-oil

Shumei Zhang; Jianyun Xiong; Jiaxin Lu; Nan Zhou; Hui Li; Xian Cui; Qi Zhang; Yuhuan Liu; Roger Ruan; Yunpu Wang

doi:10.1016/j.scitotenv.2022.154186

Synthesis of CaO from waste shells for microwave-assisted catalytic pyrolysis of waste cooking oil to produce aromatic-rich bio-oil

Shumei Zhang, Jianyun Xiong, Jiaxin Lu, Nan Zhou, Hui Li, Xian Cui, Qi Zhang, Yuhuan Liu, Roger Ruan, Yunpu Wang

Bioproducts and Biosystems Engineering

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5 Scopus citations

Abstract

Energy shortage and environmental pollution have attracted long-term attention. In this study, CaO were prepared from waste eggshell (EGC), preserved egg shell (PEC), clam shell (CLC) and crab shell (CRC), which were then compared with commercial CaO (CMC) to catalyze microwave-assisted pyrolysis of waste cooking oil (WCO) for enrichment of aromatics in bio-oil. The characterization results indicated that EGC and CLC contained 95.54% and 95.61% CaO respectively, which were higher than that of CMC (95.11%), and the pore properties of EGC were the best. In addition, the effects of CaO type and catalytic mode on pyrolysis were studied. In CaO catalytic pyrolysis, CMC and CLC in-situ catalysis produced more aromatics than ex-situ catalysis, and PEC and CRC were more conducive to aromatics formation in ex-situ condition. EGC was conducive to produce benzene, toluene and xylene (BTX) both in in-situ (19.04%) and ex-situ (20.76%) catalytic pyrolysis. In CaO/HZSM-5 catalysis, the optimal dual catalytic mode for generating monocyclic aromatic hydrocarbons (MAHs) was Mode A (CaO separated from HZSM-5 for ex-situ catalysis), and EGC/HZSM-5 performed well in benzene, toluene and xylene (BTX) production.

Original language	English (US)
Article number	154186
Journal	Science of the Total Environment
Volume	827
DOIs	https://doi.org/10.1016/j.scitotenv.2022.154186
State	Published - Jun 25 2022

Bibliographical note

Funding Information:
This project was financially supported by the National Natural Science Foundation of China (No. 21766019 ), the Open Research Fund Program of State Environmental Protection Key Laboratory of Food Chain Pollution Control ( FC2021YB06 ), The Centrally Guided Local Science Technology Special Project ( 20202ZDB01012 ), the Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province ( 20204BCJ23011 ), The Jiangxi Provincial Natural Science Foundation ( 20212ACB215007 ).

Publisher Copyright:
© 2022 Elsevier B.V.

Keywords

Aromatics
Biofuel
CaO
Catalytic pyrolysis
HZSM-5
Waste shell

PubMed: MeSH publication types

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@article{eaa7f959969d43f8944d821c885e34df,

title = "Synthesis of CaO from waste shells for microwave-assisted catalytic pyrolysis of waste cooking oil to produce aromatic-rich bio-oil",

abstract = "Energy shortage and environmental pollution have attracted long-term attention. In this study, CaO were prepared from waste eggshell (EGC), preserved egg shell (PEC), clam shell (CLC) and crab shell (CRC), which were then compared with commercial CaO (CMC) to catalyze microwave-assisted pyrolysis of waste cooking oil (WCO) for enrichment of aromatics in bio-oil. The characterization results indicated that EGC and CLC contained 95.54% and 95.61% CaO respectively, which were higher than that of CMC (95.11%), and the pore properties of EGC were the best. In addition, the effects of CaO type and catalytic mode on pyrolysis were studied. In CaO catalytic pyrolysis, CMC and CLC in-situ catalysis produced more aromatics than ex-situ catalysis, and PEC and CRC were more conducive to aromatics formation in ex-situ condition. EGC was conducive to produce benzene, toluene and xylene (BTX) both in in-situ (19.04%) and ex-situ (20.76%) catalytic pyrolysis. In CaO/HZSM-5 catalysis, the optimal dual catalytic mode for generating monocyclic aromatic hydrocarbons (MAHs) was Mode A (CaO separated from HZSM-5 for ex-situ catalysis), and EGC/HZSM-5 performed well in benzene, toluene and xylene (BTX) production.",

keywords = "Aromatics, Biofuel, CaO, Catalytic pyrolysis, HZSM-5, Waste shell",

author = "Shumei Zhang and Jianyun Xiong and Jiaxin Lu and Nan Zhou and Hui Li and Xian Cui and Qi Zhang and Yuhuan Liu and Roger Ruan and Yunpu Wang",

note = "Funding Information: This project was financially supported by the National Natural Science Foundation of China (No. 21766019 ), the Open Research Fund Program of State Environmental Protection Key Laboratory of Food Chain Pollution Control ( FC2021YB06 ), The Centrally Guided Local Science Technology Special Project ( 20202ZDB01012 ), the Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province ( 20204BCJ23011 ), The Jiangxi Provincial Natural Science Foundation ( 20212ACB215007 ). Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = jun,

day = "25",

doi = "10.1016/j.scitotenv.2022.154186",

language = "English (US)",

volume = "827",

journal = "Science of the Total Environment",

issn = "0048-9697",

publisher = "Elsevier",

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TY - JOUR

T1 - Synthesis of CaO from waste shells for microwave-assisted catalytic pyrolysis of waste cooking oil to produce aromatic-rich bio-oil

AU - Zhang, Shumei

AU - Xiong, Jianyun

AU - Lu, Jiaxin

AU - Zhou, Nan

AU - Li, Hui

AU - Cui, Xian

AU - Zhang, Qi

AU - Liu, Yuhuan

AU - Ruan, Roger

AU - Wang, Yunpu

N1 - Funding Information: This project was financially supported by the National Natural Science Foundation of China (No. 21766019 ), the Open Research Fund Program of State Environmental Protection Key Laboratory of Food Chain Pollution Control ( FC2021YB06 ), The Centrally Guided Local Science Technology Special Project ( 20202ZDB01012 ), the Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province ( 20204BCJ23011 ), The Jiangxi Provincial Natural Science Foundation ( 20212ACB215007 ). Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/6/25

Y1 - 2022/6/25

N2 - Energy shortage and environmental pollution have attracted long-term attention. In this study, CaO were prepared from waste eggshell (EGC), preserved egg shell (PEC), clam shell (CLC) and crab shell (CRC), which were then compared with commercial CaO (CMC) to catalyze microwave-assisted pyrolysis of waste cooking oil (WCO) for enrichment of aromatics in bio-oil. The characterization results indicated that EGC and CLC contained 95.54% and 95.61% CaO respectively, which were higher than that of CMC (95.11%), and the pore properties of EGC were the best. In addition, the effects of CaO type and catalytic mode on pyrolysis were studied. In CaO catalytic pyrolysis, CMC and CLC in-situ catalysis produced more aromatics than ex-situ catalysis, and PEC and CRC were more conducive to aromatics formation in ex-situ condition. EGC was conducive to produce benzene, toluene and xylene (BTX) both in in-situ (19.04%) and ex-situ (20.76%) catalytic pyrolysis. In CaO/HZSM-5 catalysis, the optimal dual catalytic mode for generating monocyclic aromatic hydrocarbons (MAHs) was Mode A (CaO separated from HZSM-5 for ex-situ catalysis), and EGC/HZSM-5 performed well in benzene, toluene and xylene (BTX) production.

AB - Energy shortage and environmental pollution have attracted long-term attention. In this study, CaO were prepared from waste eggshell (EGC), preserved egg shell (PEC), clam shell (CLC) and crab shell (CRC), which were then compared with commercial CaO (CMC) to catalyze microwave-assisted pyrolysis of waste cooking oil (WCO) for enrichment of aromatics in bio-oil. The characterization results indicated that EGC and CLC contained 95.54% and 95.61% CaO respectively, which were higher than that of CMC (95.11%), and the pore properties of EGC were the best. In addition, the effects of CaO type and catalytic mode on pyrolysis were studied. In CaO catalytic pyrolysis, CMC and CLC in-situ catalysis produced more aromatics than ex-situ catalysis, and PEC and CRC were more conducive to aromatics formation in ex-situ condition. EGC was conducive to produce benzene, toluene and xylene (BTX) both in in-situ (19.04%) and ex-situ (20.76%) catalytic pyrolysis. In CaO/HZSM-5 catalysis, the optimal dual catalytic mode for generating monocyclic aromatic hydrocarbons (MAHs) was Mode A (CaO separated from HZSM-5 for ex-situ catalysis), and EGC/HZSM-5 performed well in benzene, toluene and xylene (BTX) production.

KW - Aromatics

KW - Biofuel

KW - CaO

KW - Catalytic pyrolysis

KW - HZSM-5

KW - Waste shell

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DO - 10.1016/j.scitotenv.2022.154186

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C2 - 35231512

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SN - 0048-9697

VL - 827

JO - Science of the Total Environment

JF - Science of the Total Environment

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ER -

Synthesis of CaO from waste shells for microwave-assisted catalytic pyrolysis of waste cooking oil to produce aromatic-rich bio-oil

Abstract

Bibliographical note

Keywords

PubMed: MeSH publication types

UN SDGs

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