Poly(2,6-diphenyl-p-phenylene oxide) supported iron catalysts for the synthesis of lower olefins via Fischer–Tropsch reaction

Melike Tuptup; Nilhan Kayaman-Apohan; Şerife Özkara-Sarıoğlan; Elif Ünveren; Özlem Ataç; Alper Sarıoğlan

doi:10.1007/s11144-021-01964-3

Poly(2,6-diphenyl-p-phenylene oxide) supported iron catalysts for the synthesis of lower olefins via Fischer–Tropsch reaction

Melike Tuptup, Nilhan Kayaman-Apohan, Şerife Özkara-Sarıoğlan^*, Elif Ünveren, Özlem Ataç, Alper Sarıoğlan

^*Corresponding author for this work

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A porous polymer, based on 2,6-diphenyl-p-phenylene oxide (PPPO) was used as support material for Fischer–Tropsch to Olefin (FTO) reaction. In an effort to understand the effect of support on the transport of reaction intermediates formed on the surface and its relation with the product selectivity, PPPO supported iron catalyst was prepared, characterized and tested under FTO conditions. Alkali promoters were used to improve the olefin selectivity. It was shown that iron oxide formed by the calcination of iron nitrate seemed to be less prone to reduction compared to the direct use of hematite. A high C2–C4 olefin to paraffin ratio (O/P) was achieved over the alkali promoted and PPPO supported iron catalysts. Alkali promotion apparently suppressed the hydrogenation of α-olefins to paraffins and methane formation but at the expense of catalytic activity. It was shown that highly stable catalysts with improved olefin selectivity can be prepared by using poly(2,6-diphenyl-p-phenylene oxide) polymeric supports.

Original language	English
Pages (from-to)	695-715
Number of pages	21
Journal	Reaction Kinetics, Mechanisms and Catalysis
Volume	132
Issue number	2
DOIs	https://doi.org/10.1007/s11144-021-01964-3
Publication status	Published - Apr 2021

Bibliographical note

Publisher Copyright:
© 2021, Akadémiai Kiadó, Budapest, Hungary.

Funding

The authors greatly acknowledge to “The Scientific and Technological Research Council of Turkey (TUBİTAK)” for supporting the Project “Catalyst and Process Development for the Light Olefin Production through Syngas” (Contract Code: 217M105) in which this study was carried out. The authors would like to give their special thanks to Utku Burgun and Hadi Rahnamaei Zonouz for their kind supports on temperature programmed reduction measurements. The authors greatly acknowledge to ?The Scientific and Technological Research Council of Turkey (TUB?TAK)? for supporting the Project ?Catalyst and Process Development for the Light Olefin Production through Syngas? (Contract Code: 217M105) in which this study was carried out. The authors would like to give their special thanks to Utku Burgun and Hadi Rahnamaei Zonouz for their kind supports on temperature programmed reduction measurements.

Funders	Funder number
Catalyst and Process Development for the Light Olefin Production	217M105
Light Olefin Production
TUBİTAK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

Keywords

Fischer Tropsch
Iron
Olefin
Olefins
Polymer
Support

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10.1007/s11144-021-01964-3

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title = "Poly(2,6-diphenyl-p-phenylene oxide) supported iron catalysts for the synthesis of lower olefins via Fischer–Tropsch reaction",

abstract = "A porous polymer, based on 2,6-diphenyl-p-phenylene oxide (PPPO) was used as support material for Fischer–Tropsch to Olefin (FTO) reaction. In an effort to understand the effect of support on the transport of reaction intermediates formed on the surface and its relation with the product selectivity, PPPO supported iron catalyst was prepared, characterized and tested under FTO conditions. Alkali promoters were used to improve the olefin selectivity. It was shown that iron oxide formed by the calcination of iron nitrate seemed to be less prone to reduction compared to the direct use of hematite. A high C2–C4 olefin to paraffin ratio (O/P) was achieved over the alkali promoted and PPPO supported iron catalysts. Alkali promotion apparently suppressed the hydrogenation of α-olefins to paraffins and methane formation but at the expense of catalytic activity. It was shown that highly stable catalysts with improved olefin selectivity can be prepared by using poly(2,6-diphenyl-p-phenylene oxide) polymeric supports.",

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author = "Melike Tuptup and Nilhan Kayaman-Apohan and {\c S}erife {\"O}zkara-Sarıoğlan and Elif {\"U}nveren and {\"O}zlem Ata{\c c} and Alper Sarıoğlan",

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doi = "10.1007/s11144-021-01964-3",

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AU - Kayaman-Apohan, Nilhan

AU - Özkara-Sarıoğlan, Şerife

AU - Ünveren, Elif

AU - Ataç, Özlem

AU - Sarıoğlan, Alper

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N2 - A porous polymer, based on 2,6-diphenyl-p-phenylene oxide (PPPO) was used as support material for Fischer–Tropsch to Olefin (FTO) reaction. In an effort to understand the effect of support on the transport of reaction intermediates formed on the surface and its relation with the product selectivity, PPPO supported iron catalyst was prepared, characterized and tested under FTO conditions. Alkali promoters were used to improve the olefin selectivity. It was shown that iron oxide formed by the calcination of iron nitrate seemed to be less prone to reduction compared to the direct use of hematite. A high C2–C4 olefin to paraffin ratio (O/P) was achieved over the alkali promoted and PPPO supported iron catalysts. Alkali promotion apparently suppressed the hydrogenation of α-olefins to paraffins and methane formation but at the expense of catalytic activity. It was shown that highly stable catalysts with improved olefin selectivity can be prepared by using poly(2,6-diphenyl-p-phenylene oxide) polymeric supports.

AB - A porous polymer, based on 2,6-diphenyl-p-phenylene oxide (PPPO) was used as support material for Fischer–Tropsch to Olefin (FTO) reaction. In an effort to understand the effect of support on the transport of reaction intermediates formed on the surface and its relation with the product selectivity, PPPO supported iron catalyst was prepared, characterized and tested under FTO conditions. Alkali promoters were used to improve the olefin selectivity. It was shown that iron oxide formed by the calcination of iron nitrate seemed to be less prone to reduction compared to the direct use of hematite. A high C2–C4 olefin to paraffin ratio (O/P) was achieved over the alkali promoted and PPPO supported iron catalysts. Alkali promotion apparently suppressed the hydrogenation of α-olefins to paraffins and methane formation but at the expense of catalytic activity. It was shown that highly stable catalysts with improved olefin selectivity can be prepared by using poly(2,6-diphenyl-p-phenylene oxide) polymeric supports.

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KW - Olefins

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Poly(2,6-diphenyl-p-phenylene oxide) supported iron catalysts for the synthesis of lower olefins via Fischer–Tropsch reaction

Abstract

Bibliographical note

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Keywords

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