Investigation of separation properties of membrane materials based on polyphenylene oxide or diphthalic anhydride and diamine for biogas separation processes

• Autorzy: Janusz-Cygan Aleksandra , Hamryszak Łukasz , Pawlaczyk-Kurek Anna , Jaschik Jolanta , Gosiewski Krzysztof , Wojdyła Artur , Sołtys Elżbieta , Tańczyk Marek

Warianty tytułu

PL

Badanie właściwości separacyjnych materiałów membranowych wytworzonych na bazie tlenku polifenylu oraz bezwodnika diftalowego i diaminy na potrzeby procesu rozdzielania biogazu

• Języki publikacji: EN

Abstrakty

EN

Decarbonization, minimizing greenhouse gas emissions, circular economy and the waste-to-energy trend lead to increased demand for gas and green energy. The European Biogas Association shows that biomethane gas can cover 30-40% of EU gas demand by 2050. There is a steady increase in the number of biomethane installations in Europe. The application of membrane processes to biogas upgrading has been intensively researched. It is practically used in large installations with several hundred m3/ h of biogas, operating at pressures higher than 1 MPa [3-5].The problem arises when dealing with small farms, such as in Poland. Despite the estimated energy potential of the Polish agro-food sector for biogas production being over 7.8 bcm per year, there is a lack of small-scale biogas upgrading technologies suitable to Polish conditions. A good energy efficiency and overall profitability of the investment may be more difficult to achieve in this case. The proper design of a membrane separation process should be based on a thorough knowledge of the membrane characteristics, i.e. the permeability coefficients and selectivity on it, under conditions as close as possible to the actual operating conditions of the plant [6]. The aim of the work was to develop a methodology leading to a non-invasive estimation of the actual values of the permeability coefficients of the main biogas components CH4 and CO2. The laboratory tests were carried out on two kinds of flat polymer membranes (PPO 70 and AE 55) prepared by the Center for Polymer and Carbon Materials of the Polish Academy of Sciences in Zabrze. Both membranes had an active surface of 58 cm2 and a thickness of 85 μm. The pure gases CH4, CO2 and mixtures CO2/CH4 were examined separately. Permeation studies of pure gases were carried out at a feed gas flow rate of approximately 40 ml/min, a transmembrane pressure drop in the range of 1.7-7.5 bar (abs) at temperatures 19-21°C. However, the tests on the separation process of CO2/CH4 mixtures were carried out for feed gas flow rates of 60, 100, and 130 ml/min, with a constant transmembrane pressure drop of approximately 7 bar (abs), at a temperature of 20-22°C where methane concentration in carbon dioxide was 40, 50 and 60 vol.%. It was found that carbon dioxide was a component that permeated more quickly through both of the membranes. Moreover, it was observed that in each case the permeability coefficients are not constant, but change with the change in the feed gas pressure. The data from experimental research allowed to determine permeability coefficients and ideal CO2/CH4 separation factors which were respectively: PCO2 = 150 barrer PCH4 = 61 barrer, α*CO2/CH4 = 2.46 for the PPO 70 membrane, and PCO2 = 162.6 barrer, PCH4 = 25.8 barrer and α*CO2/CH4 = 6.3 in case of the AE 55 membrane.

PL

Wyznaczono współczynniki przepuszczalności składników biogazu (CH4 i CO2) dla dwóch membran, wykonanych odpowiednio z tlenku polifenylu (PPO 70) oraz bezwodnika diftalowego i diaminy AE 55). Badania prowadzono dla czystych gazów i ich mieszanin w płaskich membranach polimerowych. Stwierdzono, że dla obu membran lepiej permeującym gazem jest CO2. Współczynnik permeacji tego gazu wyniósł 150 barrerów dla PPO 70 oraz 162,6 barrera dla AE 55, a idealny współczynnik rozdziału (α*CO2/CH4), odpowiednio 2,46 i 6,3.

Słowa kluczowe

EN

membrane separation; biogas; biomethane

PL

separacja membranowa; biogaz; biometan

• Wydawca: Instytut Inżynierii Chemicznej Polskiej Akademii Nauk
• Czasopismo: Prace Naukowe Instytutu Inżynierii Chemicznej Polskiej Akademii Nauk
• Rocznik: 2023
• Tom: Nr 27
• Strony: 56--72
• Opis fizyczny: Bibliogr. 19 poz., rys., wykr.

Twórcy

autor

Janusz-Cygan Aleksandra

• Instytut Inżynierii Chemicznej Polskiej Akademii Nauk, ul. Bałtycka 5, 44-100 Gliwice

autor

Hamryszak Łukasz

• Instytut Inżynierii Chemicznej Polskiej Akademii Nauk, ul. Bałtycka 5, 44-100 Gliwice

autor

Pawlaczyk-Kurek Anna

• Instytut Inżynierii Chemicznej Polskiej Akademii Nauk, ul. Bałtycka 5, 44-100 Gliwice

autor

Jaschik Jolanta

• Instytut Inżynierii Chemicznej Polskiej Akademii Nauk, ul. Bałtycka 5, 44-100 Gliwice

autor

Gosiewski Krzysztof

• Instytut Inżynierii Chemicznej Polskiej Akademii Nauk, ul. Bałtycka 5, 44-100 Gliwice

autor

Wojdyła Artur

• Instytut Inżynierii Chemicznej Polskiej Akademii Nauk, ul. Bałtycka 5, 44-100 Gliwice

autor

Sołtys Elżbieta

• Instytut Inżynierii Chemicznej Polskiej Akademii Nauk, ul. Bałtycka 5, 44-100 Gliwice

autor

Tańczyk Marek

• Instytut Inżynierii Chemicznej Polskiej Akademii Nauk, ul. Bałtycka 5, 44-100 Gliwice

Bibliografia

• [1] https://www.europeanbiogas.eu/wp-content/uploads/2022/12/Statistical-Report-2022-Presentation_FINAL.pdf
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).