Co-pyrolysis characteristics and kinetics of lignin and collagen

Zilong Zhao, Fred S. Cannon, Cesar Nieto-Delgado

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


The authors have investigated apparent activation energies of volatiles emission when using (a) lignin alone, (b) collagen alone, or (c) lignin-collagen blends as a thermally-strengthened binder for high-density carbon product manufacturing. Apparent activation energies (Ea) computed by the Kissinger, the Weibull, and the Flynn-Wall-Ozawa (FWO) methods showed the same trends: with the highest Ea for lignin alone (245 kJ/mol), and the lowest for collagen alone (194 kJ/mol). The blends pyrolysis exhibited synergistic presence of collagen, which could help initiate the pyrolysis mass loss reactions at 250–400 °C, and participate in the condensation reactions of aromatic fragments at 400–800 °C, leading to less emission of some gaseous products and more preservation of residual char. In prior Penn State work, it was observed that this thermally-induced preservation and condensation of aromatic structure increased the binding strength of the lignin-collagen binders. The work herein offers thermogravimetric concurrence and insight to this thermal-binding synergism.

Original languageEnglish (US)
Pages (from-to)501-510
Number of pages10
JournalJournal of Analytical and Applied Pyrolysis
StatePublished - Jul 1 2016

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Fuel Technology


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