Pyrolysis of microalgae residues--A kinetic study

Bioresour Technol. 2016 Jan;199:362-366. doi: 10.1016/j.biortech.2015.08.069. Epub 2015 Aug 28.


Pyrolysis of residues from the oil extraction process of two types of microalgae, Chlamydomonas (C. sp. JSC4) and Chlorella sorokiniana (C. Sorokiniana CY1) was studied by means of a thermogravimetric analyzer. Five pseudo-components (hemicellulose, cellulose, lignin, lipid and protein) model with n=1 or n#1 was assumed for a kinetic analysis of the collected pyrolysis data. The model with n#1 resulted in a slightly better fit quality and reasonable kinetic parameters. The calculated activation energy of hemicellulose, cellulose, lignin, lipid, protein was 115.12-117.12 kJ/mol, 181.67-198.30 kJ/mol, 61.74-62.75 kJ/mol, 104.93-114.14 kJ/mol and 90.75-99.31 kJ/mol, respectively, for C. sp. JSC4; and 113.12-117.12 kJ/mol, 218.73-28.79 kJ/mol, 64.77-66.39 kJ/mol, 131.97-143.63 kJ/mol and 108.03-118.13 kJ/mol, respectively, for C. Sorokiniana CY1.

Keywords: Five pseudo-components model; Kinetic modelling; Microalgae residue; Non-isothermal pyrolysis.

MeSH terms

  • Biotechnology / methods*
  • Cellulose / chemistry
  • Chlamydomonas / chemistry*
  • Chlorella / chemistry*
  • Kinetics
  • Lignin / chemistry
  • Lipids / chemistry
  • Microalgae / chemistry*
  • Models, Theoretical
  • Plant Proteins / chemistry
  • Thermogravimetry


  • Lipids
  • Plant Proteins
  • Cellulose
  • Lignin