Kraft-lignin pyrolysis and fractional condensation of its bio-oil vapors

Akhil Tumbalam Gooty, Dongbing Li, Franco Berruti, Cedric Briens

Research output: Journal PublicationArticlepeer-review

67 Citations (Scopus)


Kraft lignin has been pyrolyzed in a modified bubbling bed reactor coupled with an internal stirrer, and the resulting bio-oil vapors have been fractionated using a series of three condensers maintained at different temperatures. The temperatures of the condensers have been optimized in order to selectively separate most of the water present in the bio-oil vapor stream and increase the quality of the remaining bio-oil. The condenser train comprised of an electrostatic precipitator-cum-condenser (C-ESP) installed between two cyclonic condensers. The fractionated bio-oil was found to be rich in phenolic compounds with a water content of less than 1 wt%. The effect of pyrolysis temperature on the fractionated bio-oil yield and characteristics is also discussed.

Original languageEnglish
Pages (from-to)33-40
Number of pages8
JournalJournal of Analytical and Applied Pyrolysis
Publication statusPublished - Mar 2014
Externally publishedYes


  • Bio-oil
  • Electrostatic precipitator
  • Fractional condensation
  • Lignin
  • Phenols
  • Pyrolysis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Fuel Technology


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