Optimizing anti-coking abilities of zeolites by ethylene diamine tetraacetie acid modification on catalytic fast pyrolysis of corn stalk

Bo Zhang; Zhaoping Zhong; Zuwei Song; Kuan Ding; Paul Chen; Roger Ruan

doi:10.1016/j.jpowsour.2015.09.075

Optimizing anti-coking abilities of zeolites by ethylene diamine tetraacetie acid modification on catalytic fast pyrolysis of corn stalk

Bo Zhang, Zhaoping Zhong, Zuwei Song, Kuan Ding, Paul Chen, Roger Ruan

Bioproducts and Biosystems Engineering

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

23 Scopus citations

Abstract

In order to minimize coke yield during biomass catalytic fast pyrolysis (CFP) process, ethylene diamine tetraacetie acid (EDTA) chemical modification method is carried out to selectively remove the external framework aluminum of HZSM-5 catalyst. X-ray diffraction (XRD), nitrogen (N₂)-adsorption and ammonia-temperature programmed desorption (NH₃-TPD) techniques are employed to investigate the porosity and acidity characteristics of original and modified HZSM-5 samples. Py-GC/MS and thermo-gravimetric analyzer (TGA) experiments are further conducted to explore the catalytic effect of modified HZSM-5 samples on biomass CFP and to verify the positive effect on coke reduction. Results show that EDTA treatment does not damage the crystal structure of HZSM-5 zeolites, but leads to a slight increase of pore volume and pore size. Meanwhile, the elimination of the strong acid peak indicates the dealumination of outer surface of HZSM-5 zeolites. Treatment time of 2 h (labeled EDTA-2H) is optimal for acid removal and hydrocarbon formation. Among all modified catalysts, EDTA-2H performs the best for deacidification and can obviously increase the yields of positive chemical compositions in pyrolysis products. Besides, EDTA modification can improve the anti-coking properties of HZSM-5 zeolites, and EDTA-2H gives rise to the lowest coke yield.

Original language	English (US)
Pages (from-to)	87-94
Number of pages	8
Journal	Journal of Power Sources
Volume	300
DOIs	https://doi.org/10.1016/j.jpowsour.2015.09.075
State	Published - Dec 30 2015

Bibliographical note

Funding Information:
The authors are grateful for the financial support from the National Basic Research Program of China (973 Program) ( 2013CB228106 ), the National Natural Science Fund Program of China ( 51276040 ), the Scientific Research Foundation of Graduate School of Southeast University ( YBJJ1430 ), the Fundamental Research Funds for the Central Universities and The Scientific Innovation Research Program of College Graduate in Jiangsu Province ( KYLX_0183 ), China Scholarship Council (CSC) , as well as Minnesota Environment and Natural Resources Trust Fund, North Central Regional Sun Grant Center at South Dakota State University through a grant provided by the US Department of Agriculture ( 2013-38502-21424 ) and a grant provided by the US Department of Transportation, Office of the Secretary ( DTOS59-07-G-00054 ).

Publisher Copyright:
© 2015 Elsevier B.V.

Keywords

Chemical modification
Coke
Ethylene diamine tetraacetie acid
External framework aluminum
Zeolites

UN SDGs

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

Access

10.1016/j.jpowsour.2015.09.075

OpenUrl availability

Full text

Cite this

@article{ecf657eb30d34758a109b82fbfc11b5e,

title = "Optimizing anti-coking abilities of zeolites by ethylene diamine tetraacetie acid modification on catalytic fast pyrolysis of corn stalk",

abstract = "In order to minimize coke yield during biomass catalytic fast pyrolysis (CFP) process, ethylene diamine tetraacetie acid (EDTA) chemical modification method is carried out to selectively remove the external framework aluminum of HZSM-5 catalyst. X-ray diffraction (XRD), nitrogen (N2)-adsorption and ammonia-temperature programmed desorption (NH3-TPD) techniques are employed to investigate the porosity and acidity characteristics of original and modified HZSM-5 samples. Py-GC/MS and thermo-gravimetric analyzer (TGA) experiments are further conducted to explore the catalytic effect of modified HZSM-5 samples on biomass CFP and to verify the positive effect on coke reduction. Results show that EDTA treatment does not damage the crystal structure of HZSM-5 zeolites, but leads to a slight increase of pore volume and pore size. Meanwhile, the elimination of the strong acid peak indicates the dealumination of outer surface of HZSM-5 zeolites. Treatment time of 2 h (labeled EDTA-2H) is optimal for acid removal and hydrocarbon formation. Among all modified catalysts, EDTA-2H performs the best for deacidification and can obviously increase the yields of positive chemical compositions in pyrolysis products. Besides, EDTA modification can improve the anti-coking properties of HZSM-5 zeolites, and EDTA-2H gives rise to the lowest coke yield.",

keywords = "Chemical modification, Coke, Ethylene diamine tetraacetie acid, External framework aluminum, Zeolites",

author = "Bo Zhang and Zhaoping Zhong and Zuwei Song and Kuan Ding and Paul Chen and Roger Ruan",

note = "Funding Information: The authors are grateful for the financial support from the National Basic Research Program of China (973 Program) ( 2013CB228106 ), the National Natural Science Fund Program of China ( 51276040 ), the Scientific Research Foundation of Graduate School of Southeast University ( YBJJ1430 ), the Fundamental Research Funds for the Central Universities and The Scientific Innovation Research Program of College Graduate in Jiangsu Province ( KYLX_0183 ), China Scholarship Council (CSC) , as well as Minnesota Environment and Natural Resources Trust Fund, North Central Regional Sun Grant Center at South Dakota State University through a grant provided by the US Department of Agriculture ( 2013-38502-21424 ) and a grant provided by the US Department of Transportation, Office of the Secretary ( DTOS59-07-G-00054 ). Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = dec,

day = "30",

doi = "10.1016/j.jpowsour.2015.09.075",

language = "English (US)",

volume = "300",

pages = "87--94",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier",

}

TY - JOUR

T1 - Optimizing anti-coking abilities of zeolites by ethylene diamine tetraacetie acid modification on catalytic fast pyrolysis of corn stalk

AU - Zhang, Bo

AU - Zhong, Zhaoping

AU - Song, Zuwei

AU - Ding, Kuan

AU - Chen, Paul

AU - Ruan, Roger

N1 - Funding Information: The authors are grateful for the financial support from the National Basic Research Program of China (973 Program) ( 2013CB228106 ), the National Natural Science Fund Program of China ( 51276040 ), the Scientific Research Foundation of Graduate School of Southeast University ( YBJJ1430 ), the Fundamental Research Funds for the Central Universities and The Scientific Innovation Research Program of College Graduate in Jiangsu Province ( KYLX_0183 ), China Scholarship Council (CSC) , as well as Minnesota Environment and Natural Resources Trust Fund, North Central Regional Sun Grant Center at South Dakota State University through a grant provided by the US Department of Agriculture ( 2013-38502-21424 ) and a grant provided by the US Department of Transportation, Office of the Secretary ( DTOS59-07-G-00054 ). Publisher Copyright: © 2015 Elsevier B.V.

PY - 2015/12/30

Y1 - 2015/12/30

N2 - In order to minimize coke yield during biomass catalytic fast pyrolysis (CFP) process, ethylene diamine tetraacetie acid (EDTA) chemical modification method is carried out to selectively remove the external framework aluminum of HZSM-5 catalyst. X-ray diffraction (XRD), nitrogen (N2)-adsorption and ammonia-temperature programmed desorption (NH3-TPD) techniques are employed to investigate the porosity and acidity characteristics of original and modified HZSM-5 samples. Py-GC/MS and thermo-gravimetric analyzer (TGA) experiments are further conducted to explore the catalytic effect of modified HZSM-5 samples on biomass CFP and to verify the positive effect on coke reduction. Results show that EDTA treatment does not damage the crystal structure of HZSM-5 zeolites, but leads to a slight increase of pore volume and pore size. Meanwhile, the elimination of the strong acid peak indicates the dealumination of outer surface of HZSM-5 zeolites. Treatment time of 2 h (labeled EDTA-2H) is optimal for acid removal and hydrocarbon formation. Among all modified catalysts, EDTA-2H performs the best for deacidification and can obviously increase the yields of positive chemical compositions in pyrolysis products. Besides, EDTA modification can improve the anti-coking properties of HZSM-5 zeolites, and EDTA-2H gives rise to the lowest coke yield.

AB - In order to minimize coke yield during biomass catalytic fast pyrolysis (CFP) process, ethylene diamine tetraacetie acid (EDTA) chemical modification method is carried out to selectively remove the external framework aluminum of HZSM-5 catalyst. X-ray diffraction (XRD), nitrogen (N2)-adsorption and ammonia-temperature programmed desorption (NH3-TPD) techniques are employed to investigate the porosity and acidity characteristics of original and modified HZSM-5 samples. Py-GC/MS and thermo-gravimetric analyzer (TGA) experiments are further conducted to explore the catalytic effect of modified HZSM-5 samples on biomass CFP and to verify the positive effect on coke reduction. Results show that EDTA treatment does not damage the crystal structure of HZSM-5 zeolites, but leads to a slight increase of pore volume and pore size. Meanwhile, the elimination of the strong acid peak indicates the dealumination of outer surface of HZSM-5 zeolites. Treatment time of 2 h (labeled EDTA-2H) is optimal for acid removal and hydrocarbon formation. Among all modified catalysts, EDTA-2H performs the best for deacidification and can obviously increase the yields of positive chemical compositions in pyrolysis products. Besides, EDTA modification can improve the anti-coking properties of HZSM-5 zeolites, and EDTA-2H gives rise to the lowest coke yield.

KW - Chemical modification

KW - Coke

KW - Ethylene diamine tetraacetie acid

KW - External framework aluminum

KW - Zeolites

UR - http://www.scopus.com/inward/record.url?scp=84942324110&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84942324110&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2015.09.075

DO - 10.1016/j.jpowsour.2015.09.075

M3 - Article

AN - SCOPUS:84942324110

SN - 0378-7753

VL - 300

SP - 87

EP - 94

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Optimizing anti-coking abilities of zeolites by ethylene diamine tetraacetie acid modification on catalytic fast pyrolysis of corn stalk

Abstract

Bibliographical note

Keywords

UN SDGs

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this