Szczegóły publikacji
Opis bibliograficzny
Application of coal and biomass fly ashes as catalysts in pyrolysis of agriculture biomass / Aneta MAGDZIARZ, Wojciech JERZAK, Agata MLONKA-MĘDRALA, Marcin GAJEK // W: CPOTE 2022 [Dokument elektroniczny] : 7th international conference on Contemporary Problems of Thermal Engineering : towards sustainable & decarbonized energy system : Warsaw, Poland, 20-23 September 2022 : conference proceedings / eds. Wojciech Stanek, [et al.]. — Wersja do Windows. — Dane tekstowe. — [Gliwice] : Department of Thermal Technology, 2022. — e-ISBN: 978-83-61506-55-3. — S. 233-240. — Wymagania systemowe: Adobe Reader. — Tryb dostępu: https://www.s-conferences.eu/ftp/cpote/CPOTE_proceedings_19_1... [2022-10-21]. — Bibliogr. s. 239-240, Abstr.
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 143199 |
|---|---|
| Data dodania do BaDAP | 2022-11-04 |
| Rok publikacji | 2022 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Wydawca | Uniwersytet Śląski w Katowicach |
Abstract
Fly ash is a solid residue generated during the combustion of solid fuels such as coal and biomass. Depending on the fuel type, the ash content and its chemical composition are different. Generally, the ash production in large energy plants is huge and its utilization is crucial issue. In this study, two kinds of ashes (coal and biomass fly ashes) were selected for investigation its potential application for zeolites synthesis and next usage as catalysts in pyrolysis process. These ashes were characterised by different Si/Al ratio (SAR – silica alumina ratio) and high metal contents (including Al, Na, K, Ca, Mg, Fe, Ti) what is important taking into account its potential application as catalysts e.g. in pyrolysis process. To enhance their catalytic properties, the ashes were modified to prepare zeolites by specially prepared procedure. A detail characteristic of studied ashes and zeolites was performed to determine chemical composition (X-ray fluorescence spectrometry), phase composition (X-ray diffraction), surface area (Brunauer-Emmet-Teller method) and thermal stability (thermal analysis). These analysis confirmed the changes in physical and chemical properties of prepared zeolites comparing to raw fly ashes. It was proved that zeolites obtained from coal and biomass ashes had significantly higher specific area from ca. 2 and 2.6 to 130 and 220 m2 /g, respectively. Intermediate pyrolysis of two agriculture biomass materials in the presence of these zeolites and non-catalyst was conducted under nitrogen atmosphere at 500 C. During the pyrolysis, char, oil and gas were obtained and the yield of process was determined. It was observed that the presence of zeolite caused the increase of gas yield. After five pyrolysis cycles the usage of catalyst was investigated analysing the changes in structure and phase composition. This work demonstrated that coal and biomass fly ashes can be successful used for zeolite production and next used as catalysts in pyrolysis process of biomass.
