Thermogravimetric substrate analysis for prediction of biogas and methane yields

B. Weber, M. D. Durán-García, C. Fröhlich

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Biodegradability of biomass constituents is the reason for the gap between theoretical biogas/methane yield and the maximum yield obtainable in bioconversion. The prediction of biogas/methane yields by applying thermal analysis is a relatively new development in this field. The aim of this study was to develop a bioconversion model based on thermogravimetry. Eleven substrates with a specific biogas yield within the range 104 to 572 mLN per gram of volatile solids were subjected to thermogravimetry and a multi linear regression model was developed to predict biogas and methane yields. The optimum parameters describe biogas and methane yields with a root mean square error of 58.8 and 34.3 mLN per gram of volatile solids respectively. The coefficient of determination for these two datasets was 0.81 and 0.84. A prediction technique based on thermogravimetric analysis appears to be a good alternative to other prediction models.

Original languageEnglish
Article number128322
JournalBioresource Technology
Volume368
DOIs
StatePublished - Jan 2023
Externally publishedYes

Keywords

  • Biodegradability
  • Biomass value
  • Digester stability

Fingerprint

Dive into the research topics of 'Thermogravimetric substrate analysis for prediction of biogas and methane yields'. Together they form a unique fingerprint.

Cite this