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Production high yields of aromatic hydrocarbons through catalytic fast pyrolysis of torrefied wood and polystyrene.

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Title: Production high yields of aromatic hydrocarbons through catalytic fast pyrolysis of torrefied wood and polystyrene.
Authors: Hassan, El Barbary1 e.hassan@msstate.edu, Elsayed, Islam1, Eseyin, Anthonia2
Source: Fuel (0016-2361). Jun2016, Vol. 174, p317-324. 8p.
Subjects: Aromatic compounds, Catalytic activity, Pyrolysis, Polystyrene, Gas chromatography/Mass spectrometry (GC-MS), Temperature measurements
Abstract: Catalytic fast pyrolysis of torrefied wood has been shown to improve the yields of aromatic hydrocarbons in the bio-oil. In this study, Py-GC/MS was employed on torrefied wood (TW), polystyrene (PS) and torrefied wood/polystyrene (TW/PS) with and without zeolite catalyst (HZSM-5) to produce a wide range of aromatic hydrocarbons. The effects of pyrolysis temperature, presence of polystyrene and catalyst on the yields and nature of aromatic hydrocarbons were investigated. Experimental results showed that the chemical composition of TW pyrolysis products was significantly different than that produced from TW/PS and TW/PS/catalyst. Presence of PS significantly reduced the yield of oxygenated phenolic compounds and produced more aromatic hydrocarbons compared to TW. More than twenty aromatic hydrocarbons were introduced during the co-pyrolysis of TW/PS and TW/PS/catalyst due to the presence of PS. The highest yields of aromatic hydrocarbons in co-pyrolysis samples were obtained at 600 °C, but higher temperatures slightly decreased the yield of most hydrocarbons. The major aromatic hydrocarbons were found to have high influence on the yields of pyrolysis products are: Styrene; α-methylstyrene; 2-phenyl-1,2,3,4-tetrahydronaphthalene; diphenylpropane and diphenylbutane derivatives. Most of aromatic hydrocarbons identified in this study were proposed to be formed through free radical reaction mechanism. [ABSTRACT FROM AUTHOR]
Copyright of Fuel (0016-2361) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 113189455
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Production high yields of aromatic hydrocarbons through catalytic fast pyrolysis of torrefied wood and polystyrene.
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  Data: <searchLink fieldCode="AR" term="%22Hassan%2C+El+Barbary%22">Hassan, El Barbary</searchLink><relatesTo>1</relatesTo><i> e.hassan@msstate.edu</i><br /><searchLink fieldCode="AR" term="%22Elsayed%2C+Islam%22">Elsayed, Islam</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Eseyin%2C+Anthonia%22">Eseyin, Anthonia</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Fuel+%280016-2361%29%22">Fuel (0016-2361)</searchLink>. Jun2016, Vol. 174, p317-324. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Aromatic+compounds%22">Aromatic compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink><br /><searchLink fieldCode="DE" term="%22Pyrolysis%22">Pyrolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Polystyrene%22">Polystyrene</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+chromatography%2FMass+spectrometry+%28GC-MS%29%22">Gas chromatography/Mass spectrometry (GC-MS)</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+measurements%22">Temperature measurements</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Catalytic fast pyrolysis of torrefied wood has been shown to improve the yields of aromatic hydrocarbons in the bio-oil. In this study, Py-GC/MS was employed on torrefied wood (TW), polystyrene (PS) and torrefied wood/polystyrene (TW/PS) with and without zeolite catalyst (HZSM-5) to produce a wide range of aromatic hydrocarbons. The effects of pyrolysis temperature, presence of polystyrene and catalyst on the yields and nature of aromatic hydrocarbons were investigated. Experimental results showed that the chemical composition of TW pyrolysis products was significantly different than that produced from TW/PS and TW/PS/catalyst. Presence of PS significantly reduced the yield of oxygenated phenolic compounds and produced more aromatic hydrocarbons compared to TW. More than twenty aromatic hydrocarbons were introduced during the co-pyrolysis of TW/PS and TW/PS/catalyst due to the presence of PS. The highest yields of aromatic hydrocarbons in co-pyrolysis samples were obtained at 600 °C, but higher temperatures slightly decreased the yield of most hydrocarbons. The major aromatic hydrocarbons were found to have high influence on the yields of pyrolysis products are: Styrene; α-methylstyrene; 2-phenyl-1,2,3,4-tetrahydronaphthalene; diphenylpropane and diphenylbutane derivatives. Most of aromatic hydrocarbons identified in this study were proposed to be formed through free radical reaction mechanism. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Fuel (0016-2361) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.fuel.2016.02.031
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 317
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      – SubjectFull: Aromatic compounds
        Type: general
      – SubjectFull: Catalytic activity
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      – SubjectFull: Pyrolysis
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      – SubjectFull: Polystyrene
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      – SubjectFull: Gas chromatography/Mass spectrometry (GC-MS)
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      – SubjectFull: Temperature measurements
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      – TitleFull: Production high yields of aromatic hydrocarbons through catalytic fast pyrolysis of torrefied wood and polystyrene.
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            NameFull: Elsayed, Islam
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              Text: Jun2016
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