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dc.contributor.authorDara Khairunnisa Mohameden_US
dc.contributor.authorVeksha, Andreien_US
dc.contributor.authorQuan Luu Manh Haen_US
dc.contributor.authorLim, Teik-Thyeen_US
dc.contributor.authorLisak, Grzegorzen_US
dc.identifier.citationDara Khairunnisa Mohamed, Veksha, A., Quan Luu Manh Ha, Lim, T. & Lisak, G. (2022). Unravelling the significance of catalyst reduction stage for high tar reforming activity in the presence of syngas impurities. Applied Catalysis A: General, 642, 118711-.
dc.description.abstractNi catalysts are used widely in tar reforming for syngas purification. This study investigates the aim of the reduction stage toward Ni catalysts during tar reforming in the presence of syngas impurities. A NiAl2O4 catalyst was used for the reforming of a mixture of tar model compounds (naphthalene, toluene, and styrene) in simulated syngas containing 50 ppmv H2S and 500 ppmv HCl. The catalyst exhibited activity in tar reforming even without the pre-reduction treatment, but it was deactivated rapidly due to the favored reaction between H2S and Ni2+ species, causing increased Ni agglomeration and carbon deposition. Pre-reduction of catalysts enhanced the catalyst stability even in the presence of syngas impurities. Higher reforming activity was achieved by increasing the reduction temperature from 800 °C to 900 °C. However, transformation in the support structure at higher reducing temperature could lead to decreased exposure of Ni due to the collapse of pore structures.en_US
dc.description.sponsorshipNanyang Technological Universityen_US
dc.relation.ispartofApplied Catalysis A: Generalen_US
dc.rights© 2022 Elsevier B.V. All rights reserved. This paper was published in Applied Catalysis A: General and is made available with permission of Elsevier B.V.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleUnravelling the significance of catalyst reduction stage for high tar reforming activity in the presence of syngas impuritiesen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.researchResidues and Resource Reclamation Centreen_US
dc.description.versionSubmitted/Accepted versionen_US
dc.subject.keywordsCatalytic Reformingen_US
dc.description.acknowledgementDara Khairunnisa Binte Mohamed would also like to thank the Interdisciplinary Graduate Programme and Nanyang Technological University for the PhD scholarship.en_US
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