Szczegóły publikacji
Opis bibliograficzny
Structural and energetic properties of hydrochars obtained from agricultural and municipal solid waste digestates / Halina Pawlak-Kruczek, Małgorzata SIERADZKA, Agata MLONKA-MĘDRALA, Marcin Baranowski, Monika Serafin-Tkaczuk, Aneta MAGDZIARZ, Łukasz Niedźwiecki // W: ECOS 2019 [Dokument elektroniczny] : proceedings of the 32nd international conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems : Wrocław, Poland, 23–28 June 2019 / ed. by Wojciech Stanek, [et al.]. — Wersja do Windows. — Dane tekstowe. — [Gliwice] : Institute of Thermal Technology. Silesian University of Technology, 2019. — Dysk Flash. — e-ISBN: 978-83-61506-51-5. — S. 4079–4090. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 4088–4090, Abstr. — W bazie Scopus zakres stron: 4115-4126
Autorzy (7)
- Pawlak-Kruczek Halina
- AGHCierpińska Małgorzata
- AGHMlonka-Mędrala Agata
- Baranowski Marcin
- Serafin-Tkaczuk Monika
- AGHMagdziarz Aneta
- Niedźwiecki Łukasz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 122757 |
|---|---|
| Data dodania do BaDAP | 2019-07-18 |
| Rok publikacji | 2019 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Politechnika Śląska |
Abstract
State-of-the-art biogas plant has a substantial land requirement for the storage of digestate, typically 8 ha/MW of installed power, which introduces significant costs. Digestate is a nutrient-rich substance produced by anaerobic digestion, it contains organic and inorganic compounds as well as micro-organisms. The European Nitrates Directive (91/676/EEC) gives the regulations concerning wider implementation of digestate. Due to a significant amount of organic matter in the digestate, it can be utilized as a solid biofuel, a soil amendment or a substrate for activated carbon production. Nonetheless, digestate requires the improvement of physical properties especially decreasing moisture content. HTC (Hydrothermal Carbonization) of the digestate is the pretreatment method that has a significant potential for improving physical and chemical properties of wet material. HTC is a pretreatment process which can change digestate into potentially more hydrophobic product with higher energy potential. In the study, two kinds of digestate were examined as a potential feedstock for preparing hydrochar applied as a porous material and a solid biofuel. First digestate sample was a clean digestate from a typical biogas plant, performing anaerobic digestion of typical agricultural residues, such as a cow dung, corn stover with small addition of alcohol fermentation residues. Second one was a digestate from wet fraction of municipal solid waste, after separation at the MSW sorting plant. HTC was performed in the autoclave, at 200°C process temperature, 4.5 hours residence time, under the saturation pressure of water. The proximate and ultimate analysis (including A, M, CHNS contents, HHV) of hydrochars were carried out. Additionally, the pore (pore size distribution, volume distribution) and structural properties using scanning electron microscope were studied. The thermal behavior under pyrolysis and combustion conditions was studied using thermal analysis connected with GC-MS (for gaseous products analysis). © 2019 Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems.All rights reserved.
