Szczegóły publikacji
Opis bibliograficzny
Deconvolution techniques for the kinetic modelling of the brewer’s spent grain pyrolysis / Szymon Sobek, Sebastian Werle, Aneta MAGDZIARZ // W: 16th SDEWES conference Dubrovnik 2021 [Dokument elektroniczny] : conference on Sustainable Development of Energy, Water and Environment Systems : October 10–17, 2021, Dubrovnik, Croatia : digital proceedings / ed. by Marko Ban, [et al.]. — Wersja do Windows. — Dane tekstowe. — [Zagreb : University of Zagreb], [2021]. — 1 dysk Flash. — (Book of Abstracts (Conference on Sustainable Development of Energy, Water and Environment Systems) ; ISSN 1847-7186). — S. 1–11 ID 388. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 10–11, Abstr. — Abstrakt dostępny po zalogowaniu: http://registration.sdewes.org/dub2021 [2021-11-17]. — S. 572
Autorzy (3)
- Sobek Szymon
- Werle Sebastian
- AGHMagdziarz Aneta
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 137253 |
|---|---|
| Data dodania do BaDAP | 2021-11-04 |
| Rok publikacji | 2021 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Czasopismo/seria | Book of Abstracts (Conference on Sustainable Development of Energy, Water and Environment Systems) |
Abstract
Within the presented paper, a deconvolution technique for overlapped differential thermogravimetry (DTG) profiles for brewer’s spent grain conversion for bioactive recovery are presented. BSG samples were collected from local brewery Alternatywa, Ruda Śląska, Poland, and its fuel properties are presented and discussed. Thermoanalytical measurements were carried out at heating rates of 1, 2, and 4 K/min, under a nitrogen atmosphere. Deconvolution procedure was implemented using Matlab, and Excel Solver, for the root Gaussian function, and three pre-assumed elementary kinetic steps, ascribed to hemicellulose, cellulose, and bulk lignin-extractives independent decomposition. Deconvoluted profiles, which sum resembled total BSG conversion profiles, of hemicellulose, cellulose, and lignin/extractives. Deconvoluted kinetic parameters (activation energy E, pre-exponential factor A, and reaction model n) are E=161.8±0.46 kJ/mol, A=4.14·1016±5.13·1014 min-1, n=1.37±0.09 for p-hemicellulose, E=204.08±3.45 kJ/mol, A=2.30·1019±6.81·1018 min-1, n=1.37±0.18 for cellulose, and E=26.23±2.23 kJ/mol, A=88.81-841.47 min-1, n=1.09±0.02 for lignin/extractives respectively. Gaussian deconvolution techniques resulted in kinetic modelling of the BSG pyrolysis profiles with a standard error of the estimate σest.=0.02-0.1 %/min of the estimated conversion profiles.
