In-situ catalytic pyrolysis of lignin in a bench-scale fixed bed pyrolyzer

Hoda Shafaghat, Pouya Sirous Rezaei, Donghoon Ro, Jungho Jae, Beom Sik Kim, Sang Chul Jung, Bong Hyun Sung, Young Kwon Park

Research output: Contribution to journalArticlepeer-review

90 Scopus citations


Thermal and in-situ catalytic pyrolysis of lignin were carried out in a bench-scale pyrolyzer. The yield and composition of the bio-oil produced were influenced largely by the type of lignin samples, pyrolysis temperature, and nitrogen carrier gas flow rate. The highest bio-oil yield of 35.95 wt.% was achieved using kraft lignin at 500 °C and a carrier gas flow rate of 600 ml/min. In-situ catalytic pyrolysis resulted in a decrease of the bio-oil yield, but the aromatic product distribution was altered greatly depending on the types of catalysts. In-situ catalytic pyrolysis also showed enhanced selectivity to valuable aromatic hydrocarbons.

Original languageEnglish
Pages (from-to)447-453
Number of pages7
JournalJournal of Industrial and Engineering Chemistry
StatePublished - 25 Oct 2017


  • Aromatic hydrocarbons
  • Bio-oil
  • In-situ catalytic pyrolysis
  • Lignin
  • Phenolics


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