Jens Mühle, Lambert J. M. Kuijpers, Kieran M. Stanley, Matthew Rigby, Luke M. Western, Jooil Kim, Sunyoung Park, Christina M. Harth, Paul B. Krummel, Paul J. Fraser, Simon O'Doherty, Peter K. Salameh, Roland Schmidt, Dickon Young, Ronald G. Prinn, Ray H. J. Wang, Ray F. Weiss
- Emissions of the potent greenhouse gas perfluorocyclobutane (c-C4F8, PFC-318, octafluorocyclobutane) into the global atmosphere inferred from atmospheric measurements have been increasing sharply since the early 2000s. We find that these inferred emissions are highly correlated with the production of hydrochlorofluorocarbon-22 (HCFC-22, CHClF2) for feedstock (FS) uses, because almost all HCFC-22 FS is pyrolyzed to produce (poly)tetrafluoroethylene ((P)TFE) and hexafluoropropylene (HFP), a process in which c-C4F8 is a known by-product, causing a significant fraction of global c-C4F8 emissions. We find a global emission factor of ∼0.003 kg c-C4F8 per kilogram of HCFC-22 FS pyrolyzed. Mitigation of these c-C4F8 emissions, e.g., through process optimization, abatement, or different manufacturing processes, such as refined methods of electrochemical fluorination and waste recycling, could reduce the climate impact of this industry. While it has been shown that c-C4F8 emissions from developing countries dominate global emissions, more atmospheric measurements and/or detailed process statistics are needed to quantify c-C4F8 emissions at country to facility levels.
MetadatenAuthor: | Jens MühleORCiDGND, Lambert J. M. Kuijpers, Kieran M. StanleyORCiD, Matthew RigbyORCiD, Luke M. WesternORCiD, Jooil KimORCiD, Sunyoung Park, Christina M. HarthORCiD, Paul B. KrummelORCiD, Paul J. Fraser, Simon O'DohertyORCiD, Peter K. Salameh, Roland Schmidt, Dickon YoungORCiD, Ronald G. PrinnGND, Ray H. J. WangORCiD, Ray F. WeissORCiD |
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URN: | urn:nbn:de:hebis:30:3-751662 |
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DOI: | https://doi.org/10.5194/acp-22-3371-2022 |
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ISSN: | 1680-7324 |
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Parent Title (English): | Atmospheric chemistry and physics |
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Publisher: | EGU |
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Place of publication: | Katlenburg-Lindau |
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Document Type: | Article |
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Language: | English |
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Date of Publication (online): | 2022/03/14 |
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Date of first Publication: | 2022/03/14 |
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Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
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Release Date: | 2024/08/19 |
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Volume: | 22 |
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Issue: | 5 |
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Page Number: | 8 |
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First Page: | 3371 |
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Last Page: | 3378 |
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Note: | Funding: National Aeronautics and Space Administration ; NNX16AC96G |
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Note: | Funding: National Aeronautics and Space Administration ; NNX16AC97G |
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Note: | Funding: National Aeronautics and Space Administration ; NNX16AC98G |
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Note: | Funding: Department for Business, Energy and Industrial Strategy, UK Government ; 1537/06/2018 |
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Note: | Funding: National Oceanic and Atmospheric Administration ; 1305M319CNRMJ0028 |
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Note: | Funding: Commonwealth Scientific and Industrial Research Organisation |
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Note: | Funding: Bureau of Meteorology, Australian Government |
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Note: | Funding: National Research Foundation of Korea ; 2020R1A2C3003774 |
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Note: | Funding: Natural Environment Research Council ; NE/S004211/1 |
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Note: | Funding: Natural Environment Research Council ; NE/V002996/1 |
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Note: | Funding: Natural Environment Research Council ; NE/N016548/1 |
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Institutes: | Geowissenschaften / Geographie |
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Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
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| 5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften |
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Sammlungen: | Universitätspublikationen |
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Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |
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