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

3 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

Fingerprint

Phosphotungstic Acid
Pentoses
Pore structure
Condensation
Catalysts
Acids
Catalyst activity
Furaldehyde
Furans
Furfural
Acidity
furan

Keywords

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

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Cite this

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title = "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",
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.",
keywords = "2-Methylfuran, Condensation, Continuous-flow reaction, Furfural, Phosphotungstic acid, Supported catalyst",
author = "Kwon, {Ji Sun} and Hyunah Choo and Choi, {Jae Wook} and Jungho Jae and {Jin Suh}, Dong and Lee, {Kwan Young} and Ha, {Jeong Myeong}",
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T1 - Condensation of pentose-derived furan compounds to C15 fuel precursors using supported phosphotungstic acid catalysts

T2 - Strategy for designing heterogeneous acid catalysts based on the acid strength and pore structures

AU - Kwon, Ji Sun

AU - Choo, Hyunah

AU - Choi, Jae Wook

AU - Jae, Jungho

AU - Jin Suh, Dong

AU - Lee, Kwan Young

AU - Ha, Jeong Myeong

PY - 2019/1/25

Y1 - 2019/1/25

N2 - 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.

AB - 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.

KW - 2-Methylfuran

KW - Condensation

KW - Continuous-flow reaction

KW - Furfural

KW - Phosphotungstic acid

KW - Supported catalyst

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