| Title: | Determination of oxygen by means of a biogas and gas - interference study using an optical tris (4,7-diphenyl-1,10-phenanthroline) ruthenium(II) dichloride complex sensor |
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| Authors: | ID Brglez, Polonca (Author)
ID Holobar, Andrej (Author)
ID Pivec, Aleksandra (Author)
ID Belšak Šel, Nataša (Author)
ID Kolar, Mitja (Author) |
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| Files: |  Acta_Chimica_Slovenica_2012_Brglez_et_al._Determination_of_oxygen_by_means_of_a_biogas_and_gas-interference_study_using_an_optical_tris.pdf (315,15 KB)
MD5: E24CE5BC000177D5CA89864238BCCD0B
PID: 20.500.12556/dkum/d9524d86-b66a-43ef-9aa9-a5e90de638ed
 http://acta-arhiv.chem-soc.si/59/59-1-50.pdf
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
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| Abstract: | Biogas is a mixture of gases produced by anaerobic fermentation where biomass or animal waste is decomposed and methane and carbon dioxide are mainly released. Biogas also has a very high moisture content (up to 80%), temperatures of around 60 °C, high pressure, and can contain other gases ($N_2$, $H_2S$, $NH_3$ and $H_2$). We searched for an appropriate measuring system for the determining of oxygen in biogas, since the production process of biogas must be run under anaerobic conditions; as the presence of oxygen decreases the quality of the biogas. Ruthenium (II) complexes are by far the most widely-used oxygen dyes within optical oxygen sensors. In general, they have efficient luminescences, relatively long-life metal-ligand charge-transfer excited states, fast response times, strong visible absorptions, large Stokes shifts, and high-photochemical stability. The purpose of this work was to characterise and optimize an optical oxygen sensor using tris (4,7-diphenyl-1,10-phenanthroline) ruthenium(II) dichloride complex for measuring oxygen. Different sensor properties were additionally studied, focusing on the interference of external light, temperature, and various gases. A special gas-mixing chamber was developed for gas interference study, and online experiments are presented for oxygen determination within the pilot biogas reactor. |
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| Keywords: | tris(4, 7-diphenyl-1, 10-phenanthroline)ruthenium(II) dichloride complex, oxygen optical sensor, interferences, biogas |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2012 |
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| Number of pages: | str. 50-58 |
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| Numbering: | Letn. 59, št. 1 |
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| PID: | 20.500.12556/DKUM-27260  |
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| ISSN: | 1318-0207 |
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| UDC: | 543.5 |
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| ISSN on article: | 1318-0207 |
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| COBISS.SI-ID: | 15889686 |
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| NUK URN: | URN:SI:UM:DK:VFAKMFEE |
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| Publication date in DKUM: | 01.06.2012 |
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| Views: | 2445 |
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| Downloads: | 130 |
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| Metadata: |    |
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| Categories: | Misc.
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