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.

Publication DOI: https://doi.org/10.1016/j.joei.2020.10.005
Divisions: College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Chemical Engineering & Applied Chemistry
College of Engineering & Physical Sciences
Additional Information: © 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: Aromatics,Catalytic fast co-pyrolysis,Dual-catalysts,MMOs,Py/GC-MS,ZSM-5,Control and Systems Engineering,Renewable Energy, Sustainability and the Environment,Fuel Technology,Condensed Matter Physics,Energy Engineering and Power Technology,Electrical and Electronic Engineering
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://www.sci ... 1811?via%3Dihub (Publisher URL)
PURE Output Type: Article
Published Date: 2021-02
Published Online Date: 2020-10-04
Accepted Date: 2020-10-02
Authors: Haji Morni, Nurul Afiqah
Yeung, Chun Mo
Tian, Hong
Yang, Yang (ORCID Profile 0000-0003-2075-3803)
Phusunti, Neeranuch
Abu Bakar, Muhammad Saifullah
Azad, Abul Kalam

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