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FCC Matrix Components and Their Combination with Y Zeolite to Enhance the Deoxygenation of Bio-oils.

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Title: FCC Matrix Components and Their Combination with Y Zeolite to Enhance the Deoxygenation of Bio-oils.
Authors: Bertero, Melisa1 (AUTHOR), García, Juan Rafael1 (AUTHOR), Falco, Marisa1 (AUTHOR), Sedran, Ulises1 (AUTHOR) usedran@fiq.unl.edu.ar
Source: BioEnergy Research. Jun2022, Vol. 15 Issue 2, p1327-1341. 15p.
Subjects: Face centered cubic structure, Zeolite Y, Deoxygenation, Molecular weights, Gasoline, Molecules, Mesopores, Mesoporous silica, Zeolites
Abstract: The immediate catalytic conversions of pyrolytic bio-oils from pine sawdust and soybean shell over mesoporous catalysts (silica, alumina, and silica-alumina) and their combinations with Y zeolite, were studied. The effect of mesoporosity and acidity on the bio-oil deoxygenation and conversion into hydrocarbons was investigated. Pyrolysis and immediate catalytic conversion of bio-oil were performed in an integrated pyrolysis–upgrading reactor, for 7 min under a 30-ml/min flow of nitrogen at 550 °C. Important differences were observed in the conversion of the bio-oils, according to the composition of the raw biomasses. Pine sawdust bio-oil produced more coke and less hydrocarbons in the range of gasoline than soybean shell bio-oil over all the catalysts. Mesoporous catalysts showed conversion and deoxygenation between 14 and 29 percentage points higher with the more acidic solid (SiO2-Al2O3) in the case of pine sawdust bio-oil and between 2 and 10 percentage points higher with the solid having the highest specific surface area (SiO2) in the case of soybean shell bio-oil. Among the compound catalysts, the best performance for the case of pine sawdust corresponded to the catalyst with the highest mesoporosity (Y/SiO2), while for soybean shell corresponded to the most acidic catalysts (Y/Al2O3 and Y/SiO2-Al2O3). Soybean shell bio-oil showed more low molecular weight compounds (less than 130 g mol−1), which diffuse more easily in the zeolite channels, thus favoring conversion and deoxygenation mechanisms. On the contrary, for pine sawdust bio-oil, the surface area contributed by the mesopores in the matrix played a key role in pre-cracking bulky molecules. [ABSTRACT FROM AUTHOR]
Copyright of BioEnergy Research is the property of Springer Nature 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.)
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  Data: FCC Matrix Components and Their Combination with Y Zeolite to Enhance the Deoxygenation of Bio-oils.
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  Data: The immediate catalytic conversions of pyrolytic bio-oils from pine sawdust and soybean shell over mesoporous catalysts (silica, alumina, and silica-alumina) and their combinations with Y zeolite, were studied. The effect of mesoporosity and acidity on the bio-oil deoxygenation and conversion into hydrocarbons was investigated. Pyrolysis and immediate catalytic conversion of bio-oil were performed in an integrated pyrolysis–upgrading reactor, for 7 min under a 30-ml/min flow of nitrogen at 550 °C. Important differences were observed in the conversion of the bio-oils, according to the composition of the raw biomasses. Pine sawdust bio-oil produced more coke and less hydrocarbons in the range of gasoline than soybean shell bio-oil over all the catalysts. Mesoporous catalysts showed conversion and deoxygenation between 14 and 29 percentage points higher with the more acidic solid (SiO2-Al2O3) in the case of pine sawdust bio-oil and between 2 and 10 percentage points higher with the solid having the highest specific surface area (SiO2) in the case of soybean shell bio-oil. Among the compound catalysts, the best performance for the case of pine sawdust corresponded to the catalyst with the highest mesoporosity (Y/SiO2), while for soybean shell corresponded to the most acidic catalysts (Y/Al2O3 and Y/SiO2-Al2O3). Soybean shell bio-oil showed more low molecular weight compounds (less than 130 g mol−1), which diffuse more easily in the zeolite channels, thus favoring conversion and deoxygenation mechanisms. On the contrary, for pine sawdust bio-oil, the surface area contributed by the mesopores in the matrix played a key role in pre-cracking bulky molecules. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of BioEnergy Research is the property of Springer Nature 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: 10.1007/s12155-021-10322-z
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        Text: English
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        PageCount: 15
        StartPage: 1327
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      – SubjectFull: Face centered cubic structure
        Type: general
      – SubjectFull: Zeolite Y
        Type: general
      – SubjectFull: Deoxygenation
        Type: general
      – SubjectFull: Molecular weights
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      – SubjectFull: Gasoline
        Type: general
      – SubjectFull: Molecules
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      – SubjectFull: Mesopores
        Type: general
      – SubjectFull: Mesoporous silica
        Type: general
      – SubjectFull: Zeolites
        Type: general
    Titles:
      – TitleFull: FCC Matrix Components and Their Combination with Y Zeolite to Enhance the Deoxygenation of Bio-oils.
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              Text: Jun2022
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