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Wyszukujesz frazę "Wawryniuk, Katarzyna" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Techniki membranowe w procesach otrzymywania biometanu z biogazu
Membrane-based techniques for biomethane production from biogas
Autorzy:
Wawryniuk, Katarzyna
Biernat, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/470620.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
OZE
biogaz
biometan
separacja membranowa
renewable energy
biogas
biomethane
membrane separation
Opis:
The enrichment of biogas in methane involves the removal of carbon dioxide, water vapor, and hydrogen sulphide, which contribute to the reduction of thermal parameters of raw biogas. Biogas purification is generally carried out using the following processes: absorption (in water, polyethylene glycol, amines), adsorption (molecular sieves, activated carbon), and low temperature distillation or membrane separation. Compared with these methods, membrane techniques produce the same performance at lower operating costs and significantly lower energy requirements and surface. This technique is also characterized by modular construction, which allows for easy scale-up. In addition, it does not contribute to the production of additional waste streams and the process does not require the use of additional reagents. Enrichment of biogas to methane concentration higher than 70% by volume. CH4 gives ability to use this gas as an alternative, clean fuel
Źródło:
Studia Ecologiae et Bioethicae; 2015, 13, 4; 197-219
1733-1218
Pojawia się w:
Studia Ecologiae et Bioethicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Membrane installation for biogas enrichment – Field tests and system simulation
Autorzy:
Chmielewski, Abdrzej Grzegorz
Urbaniak, Agata
Palige, Jacek
Roubinek, Otton
Wawryniuk, Katarzyna
Dobrowolski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/185469.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
polymer membranes
biogas
methane concentration upgrading
trace biogas components
membrane mobile testing unit
multistage membrane system simulation
membrany polimerowe
biogaz
podwyższenie stężenia metanu
śladowe komponenty biogazu
mobilna jednostka testująca membranę
wielostopniowa symulacja systemu membranowego
Opis:
The paper presents results of the field tests on membrane biogas enrichment performed with the application of mobile membrane installation (MMI) with the feed stream up to 10 Nm3/h. The mobile installation equipped with four hollow fibre modules with polyimide type membranes was tested at four different biogas plants. Two of them were using agricultural substrates. The third one was constructed at a municipal wastewater plant and sludge was fermented in a digester and finally in the fourth case biogas was extracted from municipal waste landfill site. Differences in the concentration of bio-methane in feed in all cases were observed and trace compounds were detected as well. High selectivity polyimide membranes, in proper module arrangements, can provide a product of high methane content in all cases. The content of other trace compounds, such as hydrogen sulphide, water vapour and oxygen on the product did not exceed the values stated by standard for a biogas as a vehicle fuel. The traces of hydrogen sulphide and water vapour penetrated faster to the waste stream enriched in carbon dioxide, which could lead to further purification of the product – methane being hold in the retentate (H2O > H2S > CO2 > O2 > CH4 > N2). In the investigated cases, when concentration of N2 was low and concentration of CH4 higher than 50%, it was possible to upgrade methane to concentration above 90% in a two-stage cascade. To performsimulation ofCH4 andCO2 permeation through polyimide membrane,MATLABwas used. Simulation program has included permeation gaseous mixture with methane contents as observed at field tests in the range of 50 and 60% vol. The mass transport process was estimated for a concurrent hollow fibre membrane module for given pressure and temperature conditions and different values of stage cut. The obtained results show good agreement with the experimental data. The highest degree of methane recovery was obtained with gas concentrating in a cascade with recycling of the retentate.
Źródło:
Chemical and Process Engineering; 2019, 40, 2; 235--260
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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