Probing direct carbon-carbon acylation of furans and long-chain acids over H-ZSM-5

Yichen Ji, Jie Pan, Paul Dauenhauer, Raymond J. Gorte

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Abstract

The acylation of furan and 2-methylfuran (2-MF) with acetic acid (AA) and 1-hexanoic acid (HA) was studied over an H-ZSM-5 catalyst. Temperature-programmed desorption (TPD) measurements showed evidence that AA adsorbs strongly at Brønsted sites, with reaction to CO2 and acetone beginning at 523 K, while both furan and 2-MF oligomerize upon adsorption at room temperature. Steady-state, flow-reactor measurements demonstrate that selectivities for the acylation reactions can approach 100% below 523 K when reactions are operated in excess organic acids, with maximum conversion limited by equilibrium. Coking becomes important when the reaction is operated in excess furan or 2-MF and at high reactant concentrations, while ketonization products are observed when the reaction is performed above 523 K. Potential uses for the reactions are discussed.

Original languageEnglish (US)
Pages (from-to)107-112
Number of pages6
JournalApplied Catalysis A: General
Volume577
DOIs
StatePublished - May 5 2019

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Keywords

  • 1-Hexanoic acid
  • 2-Methylfuran
  • Acetic acid
  • Acylation reaction
  • Furan
  • H-ZSM-5

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