Mechanism of transmethylation in anisole decomposition over HZSM-5: Experimental study

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dc.contributor.authorZhang, Jiajun
dc.contributor.authorFidalgo Fernandez, Beatriz
dc.contributor.authorShen, Dekui
dc.contributor.authorXiao, Rui
dc.contributor.authorGu, Sai
dc.date.accessioned2016-10-06T17:35:17Z
dc.date.available2016-10-06T17:35:17Z
dc.date.issued2016-09-15
dc.description.abstractThis work investigated the decomposition of anisole (methoxyl-based lignin model compound) in a fluidized bed reactor over no catalysts and a series of HZSM-5 zeolite catalysts with different Si/Al atomic ratios. Transmethylation reaction was identified as the initial step of the thermal decomposition of anisole, leading to the prominent production of phenolic compounds. Methyl phenols were identified as the main products, with the yield of o-cresol being higher than that of p-cresol at the temperatures below 600° C. The transmethylation reaction over HZSM-5 zeolite catalyst was found to occur at temperatures 150° C lower than those for non-catalytic reaction, with the yield of the phenolic compounds being promoted by 2.5 times. Production of the main phenolic compounds during the catalytic decomposition of anisole was enhanced to different extents depending on the Si/Al ratio. The highest selectivity of 79 wt.% was achieved over the zeolite catalyst with a Si/Al ratio of 80. The Brønsted acid sites of the catalyst played a significant role in both the preferential formation of phenolic compounds and preservation of the methyl group.en_UK
dc.identifier.citationJiajun Zhang, Beatriz Fidalgo, Dekui Shen, Rui Xiao, Sai Gu, Mechanism of transmethylation in anisole decomposition over HZSM-5: Experimental study, Journal of Analytical and Applied Pyrolysis, Volume 122, November 2016, pp323-331en_UK
dc.identifier.issn0165-2370
dc.identifier.urihttp://dx.doi.org/10.1016/j.jaap.2016.09.009
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/10681
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-Non-Commercial-No Derivatives 3.0 Unported (CC BY-NC-ND 3.0). You are free to: Share — copy and redistribute the material in any medium or format. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No Derivatives — If you remix, transform, or build upon the material, you may not distribute the modified material. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subjectMechanismen_UK
dc.subjectAnisoleen_UK
dc.subjectTransmethylationen_UK
dc.subjectPhenolic compoundsen_UK
dc.subjectBrønsted aciden_UK
dc.subjectCatalytic decompositionen_UK
dc.titleMechanism of transmethylation in anisole decomposition over HZSM-5: Experimental studyen_UK
dc.typeArticleen_UK

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