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Diesel-length aldehydes and ketones via supercritical Fischer Tropsch Synthesis on an iron catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
41908 45904 2010 9 PDF Available
Title
Diesel-length aldehydes and ketones via supercritical Fischer Tropsch Synthesis on an iron catalyst
Abstract

Use of an iron-based catalyst (1 Fe:0.01 Cu:0.02 K by mole with and without 0.1 Zn) for Fischer Tropsch Synthesis with a supercritical hexanes reaction media resulted in a significant selectivity towards diesel-length aldehydes and methyl-ketones. Varying the residence time indicated that aldehydes are primary products that are converted by secondary reactions to olefins. Additionally, incorporation studies showed that octyl aldehyde and octyl alcohol incorporated into growing chains while the octyl olefin did not. The results of this work support n-alkanes and aldehydes as primary products, olefins as both primary and secondary products, CH4 and CO2 as secondary products, and an oxygenate mechanism for propagation.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (97 K)Download as PowerPoint slideResearch highlights▶ SC-FTS on an Fe catalyst gave a high selectivity to diesel-length aldehydes. ▶ Low CO conversion enhances aldehyde selectivity and decreases olefin selectivity. ▶ These findings support an oxygenate mechanism for the FTS reaction on iron.

Keywords
Fischer Tropsch Synthesis; Supercritical fluids; Iron catalyst; Aldehyde; Ketone; CO insertion; Mechanism
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Diesel-length aldehydes and ketones via supercritical Fischer Tropsch Synthesis on an iron catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 386, Issues 1–2, 30 September 2010, Pages 65–73
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Full-text PDF Download
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