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Direct Synthesis of Oxygenates over Fe-Based Composite Catalysts: Effect of Feed Gas Composition.

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Title: Direct Synthesis of Oxygenates over Fe-Based Composite Catalysts: Effect of Feed Gas Composition.
Authors: Bliznetsov, Ivan V.1 (AUTHOR) bliznetzov2004@ips.ac.ru, Ivantsov, Mikhail I.1 (AUTHOR), Kulikova, Mayya V.1 (AUTHOR)
Source: Petroleum Chemistry. Mar2026, Vol. 66 Issue 3, p277-286. 10p.
Subjects: Iron catalysts, Gas mixtures, Catalyst structure, Pentanol, Oxygenation (Chemistry), X-ray diffraction, Fourier transform infrared spectroscopy, Polymerization
Abstract: This study investigates the effects of feed gas composition (CO/H2, CO2/H2, or CO/CO2/H2) on the activity and selectivity of an Fe-based composite catalyst (20Fe/2K–2V/PVA) for the synthesis of oxygenates, specifically higher alcohols. Physicochemical characterization using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) analysis revealed that feed gas composition governs the final phase composition of the active catalyst (χ-Fe5C2, Fe, Fe3O4). The highest yield of higher (C5+) alcohols (up to 3.4 g/m3), with carbon conversion of approximately 46% and higher alcohols accounting for up to 19% of hydrocarbon products (C4–C7 to C8+ ratio ≈ 3), was achieved at a CO : CO2 : H2 ratio of 1 : 1 : 6. The distribution of higher alcohols follows the Anderson–Schulz–Flory model, confirming a polymerization mechanism for chain growth. [ABSTRACT FROM AUTHOR]
Copyright of Petroleum Chemistry 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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DbLabel: Engineering Source
An: 194451918
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  Data: Direct Synthesis of Oxygenates over Fe-Based Composite Catalysts: Effect of Feed Gas Composition.
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  Data: <searchLink fieldCode="AR" term="%22Bliznetsov%2C+Ivan+V%2E%22">Bliznetsov, Ivan V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> bliznetzov2004@ips.ac.ru</i><br /><searchLink fieldCode="AR" term="%22Ivantsov%2C+Mikhail+I%2E%22">Ivantsov, Mikhail I.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kulikova%2C+Mayya+V%2E%22">Kulikova, Mayya V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Petroleum+Chemistry%22">Petroleum Chemistry</searchLink>. Mar2026, Vol. 66 Issue 3, p277-286. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Iron+catalysts%22">Iron catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+mixtures%22">Gas mixtures</searchLink><br /><searchLink fieldCode="DE" term="%22Catalyst+structure%22">Catalyst structure</searchLink><br /><searchLink fieldCode="DE" term="%22Pentanol%22">Pentanol</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygenation+%28Chemistry%29%22">Oxygenation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+transform+infrared+spectroscopy%22">Fourier transform infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Polymerization%22">Polymerization</searchLink>
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  Data: This study investigates the effects of feed gas composition (CO/H2, CO2/H2, or CO/CO2/H2) on the activity and selectivity of an Fe-based composite catalyst (20Fe/2K–2V/PVA) for the synthesis of oxygenates, specifically higher alcohols. Physicochemical characterization using Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) analysis revealed that feed gas composition governs the final phase composition of the active catalyst (χ-Fe5C2, Fe, Fe3O4). The highest yield of higher (C5+) alcohols (up to 3.4 g/m3), with carbon conversion of approximately 46% and higher alcohols accounting for up to 19% of hydrocarbon products (C4–C7 to C8+ ratio ≈ 3), was achieved at a CO : CO2 : H2 ratio of 1 : 1 : 6. The distribution of higher alcohols follows the Anderson–Schulz–Flory model, confirming a polymerization mechanism for chain growth. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Petroleum Chemistry 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: 10.1134/S0965544126600578
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        Text: English
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        Type: general
      – SubjectFull: Gas mixtures
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      – SubjectFull: Catalyst structure
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      – SubjectFull: Pentanol
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      – SubjectFull: Oxygenation (Chemistry)
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      – SubjectFull: Fourier transform infrared spectroscopy
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      – TitleFull: Direct Synthesis of Oxygenates over Fe-Based Composite Catalysts: Effect of Feed Gas Composition.
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              Text: Mar2026
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