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A kinetic study of roadside grass pyrolysis and digestate from anaerobic mono-digestion.
- Source :
-
Bioresource technology [Bioresour Technol] 2019 Nov; Vol. 292, pp. 121935. Date of Electronic Publication: 2019 Aug 01. - Publication Year :
- 2019
-
Abstract
- The aim of this research is to evaluate the thermogravimetric behaviour of roadside grass and its digestate obtained from mesophilic anaerobic mono-digestion by quantifying its impacts on biomass composition and properties. Thermogravimetric measurements were conducted in a laboratory furnace under nitrogen flowrate of 100 mL/min in the temperature range from 35 to 800 °C at five different heating rates of 2.5, 5, 10, 15 and 20 °C/min. Friedman and Kissinger-Akahira-Sunose differential and integral isoconversional models were applied to determine the distributions of activation energies and modified pre-exponential factors per reacted mass (degree of conversion). The investigation demonstrated that anaerobic digestion of roadside grass can be used to generate biochar-richer material (with significantly greater yield of final residues after pyrolysis) with less energy required for subsequent pyrolysis in comparison with raw roadside grass.<br /> (Copyright © 2019 Elsevier Ltd. All rights reserved.)
- Subjects :
- Anaerobiosis
Kinetics
Thermogravimetry
Poaceae
Pyrolysis
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2976
- Volume :
- 292
- Database :
- MEDLINE
- Journal :
- Bioresource technology
- Publication Type :
- Academic Journal
- Accession number :
- 31401359
- Full Text :
- https://doi.org/10.1016/j.biortech.2019.121935