Catalytic fast Co-Pyrolysis of sewage sludge−sawdust using mixed metal oxides modified with ZSM-5 catalysts on dual-catalysts for product upgrading

Nurul Afiqah Haji Morni; Chun Mo Yeung; Hong Tian; Yang Yang; Neeranuch Phusunti; Muhammad Saifullah Abu Bakar; Abul Kalam Azad

doi:10.1016/j.joei.2020.10.005

Catalytic fast Co-Pyrolysis of sewage sludge−sawdust using mixed metal oxides modified with ZSM-5 catalysts on dual-catalysts for product upgrading

Nurul Afiqah Haji Morni^*
, Chun Mo Yeung
, Hong Tian
, Yang Yang
, Neeranuch Phusunti
, Muhammad Saifullah Abu Bakar
, Abul Kalam Azad

^*Corresponding author for this work

University Brunei Darussalam
Hong Kong Polytechnic University
Changsha University of Science and Technology

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

38 Citations (Scopus)

33 Downloads (Pure)

Abstract

Catalytic fast co-pyrolysis of sewage sludge and sawdust was performed using Py/GC-MS for pyrolytic product upgrades. Metal oxides (NiO and MoO₃) and ZSM-5 catalysts had been introduced into single catalytic pyrolysis. The combination of NiO + MoO₃ in mixed metal oxides (MMOs) was modified with ZSM-5 under a dual-catalyst with different catalytic layouts. In the pyrolysis process, the metal oxides specifically promoted the formation of phenols, ketones, and furans. ZSM-5 was proven to be more effective in producing aromatic hydrocarbons and phenols and in reducing the oxygenated compounds. The combination of MMOs with ZSM-5 effectively improved product distribution by increasing the production of aromatics and phenols. MMOs promoted the aromatics selectivity of undesirable PAHs (70.5%), however, the addition of ZSM-5 to MMOs appeared to reduce and inhibit the formation of PAHs by 0.85%. The highest yield of aromatics was obtained by the layout of the ZSM-5/MMO dual catalysts layout which was 21.6%. Dual catalysts of MMOs and ZSM-5 in separated layout created promising effects in further increasing the production of aromatic hydrocarbons and phenols compared to the mixture of MMOs modified ZSM-5.

Original language	English
Pages (from-to)	387-397
Number of pages	11
Journal	Journal of the Energy Institute
Volume	94
Early online date	4 Oct 2020
DOIs	https://doi.org/10.1016/j.joei.2020.10.005
Publication status	Published - Feb 2021

Bibliographical note

Funding

The authors gratefully appreciate the facility support from the Changsha University of Science and Technology , School of Energy and Power Engineering , and Prince of Songkla University , Department of Chemistry . The main author would like to acknowledge Keith Yeung, Alvin Li, Nur Farah Izzan, Siti Norasyikin, Nur Athirah, Adiib Syazwi, and Ahmed Afif for their assistance in the research procedure.

Keywords

Aromatics
Catalytic fast co-pyrolysis
Dual-catalysts
MMOs
Py/GC-MS
ZSM-5

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10.1016/j.joei.2020.10.005

Catalytic fast Co-Pyrolysis of sewage sludge−sawdust
© 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Accepted author manuscript, 1.02 MBLicence: CC BY-NC-ND 3.0

Cite this

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title = "Catalytic fast Co-Pyrolysis of sewage sludge−sawdust using mixed metal oxides modified with ZSM-5 catalysts on dual-catalysts for product upgrading",

abstract = "Catalytic fast co-pyrolysis of sewage sludge and sawdust was performed using Py/GC-MS for pyrolytic product upgrades. Metal oxides (NiO and MoO3) and ZSM-5 catalysts had been introduced into single catalytic pyrolysis. The combination of NiO + MoO3 in mixed metal oxides (MMOs) was modified with ZSM-5 under a dual-catalyst with different catalytic layouts. In the pyrolysis process, the metal oxides specifically promoted the formation of phenols, ketones, and furans. ZSM-5 was proven to be more effective in producing aromatic hydrocarbons and phenols and in reducing the oxygenated compounds. The combination of MMOs with ZSM-5 effectively improved product distribution by increasing the production of aromatics and phenols. MMOs promoted the aromatics selectivity of undesirable PAHs (70.5\%), however, the addition of ZSM-5 to MMOs appeared to reduce and inhibit the formation of PAHs by 0.85\%. The highest yield of aromatics was obtained by the layout of the ZSM-5/MMO dual catalysts layout which was 21.6\%. Dual catalysts of MMOs and ZSM-5 in separated layout created promising effects in further increasing the production of aromatic hydrocarbons and phenols compared to the mixture of MMOs modified ZSM-5.",

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author = "\{Haji Morni\}, \{Nurul Afiqah\} and Yeung, \{Chun Mo\} and Hong Tian and Yang Yang and Neeranuch Phusunti and \{Abu Bakar\}, \{Muhammad Saifullah\} and Azad, \{Abul Kalam\}",

note = "{\textcopyright} 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/",

year = "2021",

month = feb,

doi = "10.1016/j.joei.2020.10.005",

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AU - Haji Morni, Nurul Afiqah

AU - Yeung, Chun Mo

AU - Tian, Hong

AU - Yang, Yang

AU - Phusunti, Neeranuch

AU - Abu Bakar, Muhammad Saifullah

AU - Azad, Abul Kalam

PY - 2021/2

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N2 - Catalytic fast co-pyrolysis of sewage sludge and sawdust was performed using Py/GC-MS for pyrolytic product upgrades. Metal oxides (NiO and MoO3) and ZSM-5 catalysts had been introduced into single catalytic pyrolysis. The combination of NiO + MoO3 in mixed metal oxides (MMOs) was modified with ZSM-5 under a dual-catalyst with different catalytic layouts. In the pyrolysis process, the metal oxides specifically promoted the formation of phenols, ketones, and furans. ZSM-5 was proven to be more effective in producing aromatic hydrocarbons and phenols and in reducing the oxygenated compounds. The combination of MMOs with ZSM-5 effectively improved product distribution by increasing the production of aromatics and phenols. MMOs promoted the aromatics selectivity of undesirable PAHs (70.5%), however, the addition of ZSM-5 to MMOs appeared to reduce and inhibit the formation of PAHs by 0.85%. The highest yield of aromatics was obtained by the layout of the ZSM-5/MMO dual catalysts layout which was 21.6%. Dual catalysts of MMOs and ZSM-5 in separated layout created promising effects in further increasing the production of aromatic hydrocarbons and phenols compared to the mixture of MMOs modified ZSM-5.

AB - Catalytic fast co-pyrolysis of sewage sludge and sawdust was performed using Py/GC-MS for pyrolytic product upgrades. Metal oxides (NiO and MoO3) and ZSM-5 catalysts had been introduced into single catalytic pyrolysis. The combination of NiO + MoO3 in mixed metal oxides (MMOs) was modified with ZSM-5 under a dual-catalyst with different catalytic layouts. In the pyrolysis process, the metal oxides specifically promoted the formation of phenols, ketones, and furans. ZSM-5 was proven to be more effective in producing aromatic hydrocarbons and phenols and in reducing the oxygenated compounds. The combination of MMOs with ZSM-5 effectively improved product distribution by increasing the production of aromatics and phenols. MMOs promoted the aromatics selectivity of undesirable PAHs (70.5%), however, the addition of ZSM-5 to MMOs appeared to reduce and inhibit the formation of PAHs by 0.85%. The highest yield of aromatics was obtained by the layout of the ZSM-5/MMO dual catalysts layout which was 21.6%. Dual catalysts of MMOs and ZSM-5 in separated layout created promising effects in further increasing the production of aromatic hydrocarbons and phenols compared to the mixture of MMOs modified ZSM-5.

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Catalytic fast Co-Pyrolysis of sewage sludge−sawdust using mixed metal oxides modified with ZSM-5 catalysts on dual-catalysts for product upgrading

Abstract

Bibliographical note

Funding

Keywords

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