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Pyrolysis of biomass in the presence of Al-MCM-41 type catalysts

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Title: Pyrolysis of biomass in the presence of Al-MCM-41 type catalysts
Authors: Adam, Judit1 judit.adam@ntnu.no, Blazsó, Marianne2, Mészáros, Erika2, Stöcker, Michael3, Nilsen, Merete H.3, Bouzga, Aud3, Hustad, Johan E.1, Grønli, Morten1, Øye, Gisle4
Source: Fuel (0016-2361). Sep2005, Vol. 84 Issue 12/13, p1494-1502. 9p.
Subjects: Pyrolysis, Chemical reactions, Chemical inhibitors, Chromatographic analysis
Abstract: Abstract: Al-MCM-41 type mesoporous catalysts were used for converting the pyrolysis vapours of spruce wood in order to obtain better bio-oil properties. Four Al-MCM-41 type catalysts with a Si/Al ratio of 20 were tested. The catalytic properties of Al-MCM-41 catalyst were modified by pore enlargement that allows the processing of larger molecules and by introduction of Cu cations into the structure. Spruce wood pyrolysis at 500°C was performed and the products were analysed with the help of on-line pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). In addition, thermogravimetry/mass spectrometry (TG/MS) experiments were applied for monitoring the product evolution under slow heating conditions (20°C/min) from 50 to 800°C. Levoglucosan is completely eliminated, while acetic acid, furfural and furanes become quite important among cellulose pyrolysis products over the unmodified Al-MCM-41 catalyst. The dominance of phenolic compounds of higher molecular mass is strongly cut back among the lignin products. Both the increase of the yield of acetic acid and furan and the decrease of large methoxyphenols are repressed to some extent over catalysts with enlarged pores. The Cu modified catalyst performed similarly to the catalyst with enlarged pore size in converting the pyrolysis vapours of wood, although its pore size was similar to the unmodified Al-MCM-41. [Copyright &y& Elsevier]
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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Header DbId: egs
DbLabel: Engineering Source
An: 17826520
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Pyrolysis of biomass in the presence of Al-MCM-41 type catalysts
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  Data: <searchLink fieldCode="AR" term="%22Adam%2C+Judit%22">Adam, Judit</searchLink><relatesTo>1</relatesTo><i> judit.adam@ntnu.no</i><br /><searchLink fieldCode="AR" term="%22Blazsó%2C+Marianne%22">Blazsó, Marianne</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Mészáros%2C+Erika%22">Mészáros, Erika</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Stöcker%2C+Michael%22">Stöcker, Michael</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Nilsen%2C+Merete+H%2E%22">Nilsen, Merete H.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Bouzga%2C+Aud%22">Bouzga, Aud</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Hustad%2C+Johan+E%2E%22">Hustad, Johan E.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Grønli%2C+Morten%22">Grønli, Morten</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Øye%2C+Gisle%22">Øye, Gisle</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Fuel+%280016-2361%29%22">Fuel (0016-2361)</searchLink>. Sep2005, Vol. 84 Issue 12/13, p1494-1502. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Pyrolysis%22">Pyrolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+reactions%22">Chemical reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+inhibitors%22">Chemical inhibitors</searchLink><br /><searchLink fieldCode="DE" term="%22Chromatographic+analysis%22">Chromatographic analysis</searchLink>
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  Data: Abstract: Al-MCM-41 type mesoporous catalysts were used for converting the pyrolysis vapours of spruce wood in order to obtain better bio-oil properties. Four Al-MCM-41 type catalysts with a Si/Al ratio of 20 were tested. The catalytic properties of Al-MCM-41 catalyst were modified by pore enlargement that allows the processing of larger molecules and by introduction of Cu cations into the structure. Spruce wood pyrolysis at 500°C was performed and the products were analysed with the help of on-line pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). In addition, thermogravimetry/mass spectrometry (TG/MS) experiments were applied for monitoring the product evolution under slow heating conditions (20°C/min) from 50 to 800°C. Levoglucosan is completely eliminated, while acetic acid, furfural and furanes become quite important among cellulose pyrolysis products over the unmodified Al-MCM-41 catalyst. The dominance of phenolic compounds of higher molecular mass is strongly cut back among the lignin products. Both the increase of the yield of acetic acid and furan and the decrease of large methoxyphenols are repressed to some extent over catalysts with enlarged pores. The Cu modified catalyst performed similarly to the catalyst with enlarged pore size in converting the pyrolysis vapours of wood, although its pore size was similar to the unmodified Al-MCM-41. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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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.2005.02.006
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 1494
    Subjects:
      – SubjectFull: Pyrolysis
        Type: general
      – SubjectFull: Chemical reactions
        Type: general
      – SubjectFull: Chemical inhibitors
        Type: general
      – SubjectFull: Chromatographic analysis
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      – TitleFull: Pyrolysis of biomass in the presence of Al-MCM-41 type catalysts
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            NameFull: Adam, Judit
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            NameFull: Blazsó, Marianne
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            NameFull: Mészáros, Erika
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            – D: 01
              M: 09
              Text: Sep2005
              Type: published
              Y: 2005
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              Value: 84
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              Value: 12/13
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