Conversion of kraft lignin over hierarchical MFI Zeolite

Seong Soo Kim, Hyung Won Lee, Ryong Ryoo, Wookdong Kim, Sung Hoon Park, Jong Ki Jeon, Young Kwon Park

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Catalytic pyrolysis of kraft lignin was carried out using pyrolysis gas chromatography/mass spectrometry. Hierarchical mesoporous MFI was used as the catalyst and another mesoporous material Al-SBA-15 was also used for comparison. The characteristics of mesoporous MFI were analyzed by X-ray diffraction patterns, N2 adsorption-desorption isotherms, and temperature programmed desorption of NH3. Two catalyst/lignin mass ratios were tested: 5/1 and 10/1. Aromatics and alkyl phenolics were the main products of the catalytic pyrolysis of lignin over mesoporous MFI. In particular, the yields of mono-aromatics such as benzene, toluene, ethylbenzene, and xylene were increased substantially by catalytic upgrading. Increase in the catalyst dose enhanced the production of aromatics further, which is attributed to decarboxylation, decarbonlyation, and aromatization reactions occurring over the acid sites of mesoporous MFI.

Original languageEnglish
Pages (from-to)2414-2418
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume14
Issue number3
DOIs
StatePublished - Mar 2014

Keywords

  • Catalytic Pyrolysis
  • Kraft Lignin
  • Mesoporous MFI
  • Py-GC/MS

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