Thermogravimetric substrate analysis for prediction of biogas and methane yields.
Bioresour Technol
; 368: 128322, 2023 Jan.
Article
in En
| MEDLINE
| ID: mdl-36396037
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.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Biofuels
/
Methane
Language:
En
Journal:
Bioresour Technol
Year:
2023
Document type:
Article