Effects of using ethyl acetate as a surprising additive in SI engine pertaining to an environmental perspective

Yeşilyurt, Murat Kadir; Erol, Derviş; Yaman, Hayri; Doğan, Battal

doi:10.1007/s13762-021-03706-3

Cited by 11 publications

(1 citation statement)

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“…Ethyl acetate is observed as the major liquid product with catalysts 9 – 12 , which implies a Tishchenko [21] or Cannizzaro‐type mechanism [22] is operating, as has been previously observed for related catalysts [7] . Ethyl acetate has very recently been reported to show some promise as a fuel blend additive, especially when co‐produced with two molar equivalents of hydrogen [22c] . More surprising is the production of sec ‐butanol alongside ethyl acetate; for example, catalyst 10 (run 6) gives 8.8 % ethyl acetate and 1.8 % sec ‐butanol.…”

Section: Resultsmentioning

confidence: 99%

Control in Advanced Biofuels Synthesis via Alcohol Upgrading: Catalyst Selectivity to n‐Butanol, sec‐Butanol or Isobutanol

et al. 2023

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Ruthenium complexes with tetradentate PNNP donor ligands demonstrate a marked change in selectivity compared to analogous bis bidentate PN complexes in Guerbet catalysis, producing mixtures of n-butanol (17 %), sec-butanol (14 %) and ethyl acetate (66 %) rather than the usual 90 % + selectivity to n-butanol. Tridentate PNP ruthenium complexes such as [Ru-(H)(Cl)(CO)(Ph 2 PCH 2 CH 2 NHCH 2 CH 2 PPh 2 )] also produce sec-buta-nol and, in optimized conditions (120 °C, 10 mol% NaOEt base), achieve 71 % selectivity to this butanol isomer. The same triand tetradentate complexes are efficient catalysts for the conversion of methanol/ethanol mixtures to isobutanol (up to 97 % selectivity). In this way, judicious choice of ligand within this general catalyst family allows selectivity to three butanol isomers of interest as fuel molecules.

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Section: Resultsmentioning

confidence: 99%