Cracking of hydrotreated waste fats and oils over zeolites for renewable propene production. Part I: Cracking of n-paraffinic intermediates derived from the Hydroprocessed Esters and Fatty Acids (HEFA) process.
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| Title: | Cracking of hydrotreated waste fats and oils over zeolites for renewable propene production. Part I: Cracking of n-paraffinic intermediates derived from the Hydroprocessed Esters and Fatty Acids (HEFA) process. |
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| Authors: | Martí, Ferran Torres1 (AUTHOR), Mathieu, Yannick1 (AUTHOR) matyansi@upv.edu.es, Corma, Avelino1 (AUTHOR) acorma@itq.upv.es |
| Source: | Applied Catalysis B: Environment & Energy. Feb2026, Vol. 381, pN.PAG-N.PAG. 1p. |
| Subjects: | Catalytic cracking, Propene, Zeolites, Alkenes, Acid catalysts, Waste recycling, Renewable natural resources |
| Abstract: | Waste vegetable oils and animal fats have emerged as promising renewable feedstocks for the sustainable production of light olefins. In this work, we highlight the potential of applying catalytic cracking to Hydroprocessed Esters and Fatty Acids (HEFA) derived paraffins, as a selective route toward green light olefins. By optimizing the combination of catalyst and reaction conditions, we demonstrate the feasibility of achieving up to 90 % total olefins and 47 % propylene yield through the direct catalytic cracking of HEFA-derived hydrotreated n-paraffinic intermediates. The thermodynamics and kinetics of primary and secondary reactions, including endothermic and exothermic behaviors as well as uni- and bimolecular mechanisms, have been optimized by employing zeolitic catalysts with tailored micropore dimensions, topology, hierarchical porosity, and framework composition. Key factors such as the pre-determined location of acid sites and the presence of secondary porosity were also considered. Furthermore, catalytic performance has been enhanced by recycling a selected fraction of the products within the same reactor, significantly intensifying the production of the desired light olefins. [Display omitted] • HVO can be selectively cracked to light olefins using proper acid catalysts. • ZSM-5, Hierarchical IM-5 and ZSM-12 zeolites emerge as the more selective catalysts. • Optimized conditions yield 66 % light olefins, 34 % propylene in one pass. • C5 + recycling boosts yields to 91 % light olefins and 47 % propylene. • ZSM-5 stands out as the most stable catalyst under cracking conditions. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Catalysis B: Environment & Energy 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 187839092 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Cracking of hydrotreated waste fats and oils over zeolites for renewable propene production. Part I: Cracking of n-paraffinic intermediates derived from the Hydroprocessed Esters and Fatty Acids (HEFA) process. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Martí%2C+Ferran+Torres%22">Martí, Ferran Torres</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mathieu%2C+Yannick%22">Mathieu, Yannick</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> matyansi@upv.edu.es</i><br /><searchLink fieldCode="AR" term="%22Corma%2C+Avelino%22">Corma, Avelino</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> acorma@itq.upv.es</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Catalysis+B%3A+Environment+%26+Energy%22">Applied Catalysis B: Environment & Energy</searchLink>. Feb2026, Vol. 381, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Catalytic+cracking%22">Catalytic cracking</searchLink><br /><searchLink fieldCode="DE" term="%22Propene%22">Propene</searchLink><br /><searchLink fieldCode="DE" term="%22Zeolites%22">Zeolites</searchLink><br /><searchLink fieldCode="DE" term="%22Alkenes%22">Alkenes</searchLink><br /><searchLink fieldCode="DE" term="%22Acid+catalysts%22">Acid catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Waste+recycling%22">Waste recycling</searchLink><br /><searchLink fieldCode="DE" term="%22Renewable+natural+resources%22">Renewable natural resources</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Waste vegetable oils and animal fats have emerged as promising renewable feedstocks for the sustainable production of light olefins. In this work, we highlight the potential of applying catalytic cracking to Hydroprocessed Esters and Fatty Acids (HEFA) derived paraffins, as a selective route toward green light olefins. By optimizing the combination of catalyst and reaction conditions, we demonstrate the feasibility of achieving up to 90 % total olefins and 47 % propylene yield through the direct catalytic cracking of HEFA-derived hydrotreated n-paraffinic intermediates. The thermodynamics and kinetics of primary and secondary reactions, including endothermic and exothermic behaviors as well as uni- and bimolecular mechanisms, have been optimized by employing zeolitic catalysts with tailored micropore dimensions, topology, hierarchical porosity, and framework composition. Key factors such as the pre-determined location of acid sites and the presence of secondary porosity were also considered. Furthermore, catalytic performance has been enhanced by recycling a selected fraction of the products within the same reactor, significantly intensifying the production of the desired light olefins. [Display omitted] • HVO can be selectively cracked to light olefins using proper acid catalysts. • ZSM-5, Hierarchical IM-5 and ZSM-12 zeolites emerge as the more selective catalysts. • Optimized conditions yield 66 % light olefins, 34 % propylene in one pass. • C5 + recycling boosts yields to 91 % light olefins and 47 % propylene. • ZSM-5 stands out as the most stable catalyst under cracking conditions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Catalysis B: Environment & Energy 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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.apcatb.2025.125885 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Catalytic cracking Type: general – SubjectFull: Propene Type: general – SubjectFull: Zeolites Type: general – SubjectFull: Alkenes Type: general – SubjectFull: Acid catalysts Type: general – SubjectFull: Waste recycling Type: general – SubjectFull: Renewable natural resources Type: general Titles: – TitleFull: Cracking of hydrotreated waste fats and oils over zeolites for renewable propene production. Part I: Cracking of n-paraffinic intermediates derived from the Hydroprocessed Esters and Fatty Acids (HEFA) process. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Martí, Ferran Torres – PersonEntity: Name: NameFull: Mathieu, Yannick – PersonEntity: Name: NameFull: Corma, Avelino IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 09263373 Numbering: – Type: volume Value: 381 Titles: – TitleFull: Applied Catalysis B: Environment & Energy Type: main |
| ResultId | 1 |
