Počet záznamů: 1  

Keeping good separation properties of spiral wound membrane module for carbon dioxide separation from raw biogas

  1. 1.
    SYSNO ASEP0576819
    Druh ASEPC - Konferenční příspěvek (mezinárodní konf.)
    Zařazení RIVD - Článek ve sborníku
    NázevKeeping good separation properties of spiral wound membrane module for carbon dioxide separation from raw biogas
    Tvůrce(i) Morávková, Lenka (UCHP-M) RID, SAI
    Šnajdaufová, Hana (UCHP-M) RID, SAI
    Petrusová, Zuzana (UCHP-M) RID, ORCID, SAI
    Kaštánek, František (UCHP-M) RID, SAI, ORCID
    Šolcová, Olga (UCHP-M) RID, ORCID, SAI
    Vyd. údajePadova: EUROWASTE, 2023
    Číslo článkuF03
    Zdroj.dok.Symposium Proceedings. - Padova : EUROWASTE Srl, 2023 - ISSN 2282-0027 - ISBN 9788862650335
    Poč.str.7 s.
    Forma vydáníNosič - C
    AkceInternational Symposium on Waste Management and Suustainable Landfilling SARDINIA 2023
    Datum konání09.10.2023 - 13.10.2023
    Místo konáníCagliari
    ZeměIT - Itálie
    Typ akceEUR
    Jazyk dok.eng - angličtina
    Země vyd.IT - Itálie
    Klíč. slovabiogas ; carbon dioxide ; membrane separation
    Obor OECDChemical process engineering
    CEPTN02000044 GA TA ČR - Technologická agentura ČR
    Institucionální podporaUCHP-M - RVO:67985858
    AnotaceConcerning current energetic situation all over the word, renewable energy sources are demanded. Raw biogas is the product of biochemical process of biomass and can be obtained for example from sewage plant or agro processes. Biogas is one interesting candidate as a gaseous biofuel that can partially replace fossil fuels. Except membrane separation process, biogas upgrading can be realised via various methods such as water scrubbing, polyethylene glycol scrubbing, absorption of contaminants using molecular sieves, or pressure-swing absorption. The heating value of biofuel is improved when the carbon dioxide is removed successfully from raw biogas. Bio-methane is utilized then as CNG car fuel or for heating of a greenhouse or a farm. Another important fact is various possibility for using separated carbon dioxide in various applications such as supercritical extraction of biological materials or growing algae. Therefore, the biogas upgrading is almost zero-waste process when membrane separation is applied. Carbon dioxide can be removed from a raw biogas via membrane separation based on the commercially available spiral wound membrane module. The selective layer is usually polyamide thin film on the top of porous support in the membrane module. The selective layer is swollen by water presented in raw biogas as well as water-controlled amount of water vapour from humidifier. Carbon dioxide is then preferentially transported through the membrane thanks to a significantly higher solubility in water than that of methane. The key factor is continuous refreshing of selective layer by water from a feed stream and diffusing to the permeate stream. In time, water over-saturation can happen by a sorbed molecules of carbon dioxide. Another process complication is a partly drying of a membrane during continuous running of the
    separation with time. Therefore, the separation properties of the membrane modules can be lost. However, such a problem was easily solved by a membrane module refreshing by a flush out the water over-saturated by carbon dioxide. Therefore, biogas purification can be a continuous process when at least two membrane modules are used: one separates raw biogas while another one is refreshed.
    PracovištěÚstav chemických procesů
    KontaktEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Rok sběru2024
    Elektronická adresahttps://hdl.handle.net/11104/0346216
Počet záznamů: 1  

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