Heterogeneous catalytic deoxygenation of stearic acid for production of biodiesel

Mathias Snåre, Iva Kubičková, Päivi Mäki-Arvela, Kari Eränen, Dmitry Yu Murzin*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

477 Citations (Scopus)

Abstract

A novel method for production of diesel-like hydrocarbons via catalytic deoxygenation of fatty acid is discussed. The model compound stearic acid is deoxygenated to heptadecane, originating from the stearic acid alkyl chain. The deoxygenation reaction is carried out in a semibatch reactor under constant temperature and pressure, 300°C and 6 bar, respectively. A thorough catalyst screening was performed to obtain the most promising metal and support combination. The catalysts were characterized by N2-physisorption, CO-chemisorption, and temperature-programmed desorption of hydrogen. A highly active and selective in the deoxygenation reaction of stearic acid carbon supported palladium catalyst converted stearic acid completely with >98% selectivity toward deoxygenated C17 products.

Original languageEnglish
Pages (from-to)5708-5715
Number of pages8
JournalIndustrial and Engineering Chemistry Research
Volume45
Issue number16
DOIs
Publication statusPublished - 2 Aug 2006
MoE publication typeA1 Journal article-refereed

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