Condensation of pentose-derived furan compounds to C15 fuel precursors using supported phosphotungstic acid catalysts: Strategy for designing heterogeneous acid catalysts based on the acid strength and pore structures

Ji Sun Kwon, Hyunah Choo, Jae Wook Choi, Jungho Jae, Dong Jin Suh, Kwan Young Lee, Jeong Myeong Ha

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The selective condensation of 2-methylfuran and furfural to C15 compounds is performed using supported phosphotungstic acid catalysts in a continuous-flow fixed-bed reactor. The formation of unwanted viscous tetramers (C20) is suppressed when the continuous-flow reaction system is used. Stronger acids, as measured by pKa, improved the condensation of furans, but the number of acid sites was rather weakly correlated with the catalytic activity. Suppressed catalytic activity in tiny pores smaller than 2.8–6.3 nm was also observed. Based on the observations of the acidity and pore structures, a strategy with which to design optimum catalysts for the condensation of furan compounds is suggested.

Original languageEnglish
Pages (from-to)238-244
Number of pages7
JournalApplied Catalysis A: General
DOIs
Publication statusPublished - 2019 Jan 25

Keywords

  • 2-Methylfuran
  • Condensation
  • Continuous-flow reaction
  • Furfural
  • Phosphotungstic acid
  • Supported catalyst

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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