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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Perfluorocarbon Generation and Emissions from Industrial Processes
Presentation Title Fluorinated Gas Production: Underestimated Source of PFCs?
Author(s) Deborah Ottinger, Karen Schaffner
On-Site Speaker (Planned) Deborah Ottinger
Abstract Scope The production, transformation, and destruction of fluorinated gases results in emissions of fluorinated greenhouse gases, including PFCs. In the past, attention has been focused on emissions of HFC-23 from production of HCFC-22. However, information from the USEPA's Greenhouse Gas Reporting Program (GHGRP), as well as from other countries’ GHG Inventory Reporting under the UNFCCC, shows that emissions from production and transformation processes involving other compounds can also be significant. In this paper, we will review the sources and magnitudes of PFC emissions from fluorinated gas production, transformation, and destruction as reported to the GHGRP and internationally through GHG Inventories. We will also consider how PFC emissions are likely to have changed over time. Finally, we will discuss how the current default emission factor for fluorinated gas production in the 2006 IPCC Guidelines is likely to significantly underestimate uncontrolled fluorinated GHG emissions from this industry.
Proceedings Inclusion? Planned: Light Metals


An Estimation of PFC Emission by Rare Earth Electrolysis
Attributing PFC Emissions to Different Industries: How Bottom-up Trends Can Complicate Top-down Analyses
Challenges in Estimating Global CF4 and C2F6 Emissions
Conditions and Mechanisms of Gas Emissions from Didymium Electrolysis and Its Process Control
Evaluation of Time Consistency when Quantifying Emissions of Perfluorocarbons Resulting from Low Voltage Anode Effects
Fluorinated Gas Production: Underestimated Source of PFCs?
Low Voltage PFC Measurements and Potential Alternative to Reduce Them at Alcoa Smelters
Methodologies to Measure Greenhouse Gas (GHG) Emissions from Industrial Processes and Determine the GHG Emission Factors
New Algorithm for Calculating CF4 Emissions from High Voltage Anode Effects
New Approach for Quantification of Perfluorocarbons Resulting from High Voltage Anode Effects
Perfluorocarbon Formation during Rare Earth Electrolysis
PFC Emission Reduction in the Semiconductor Industry
PFC Evolution Characteristics during Aluminium and Rare Earth Electrolysis
PFCs from the Chinese Aluminium Sector – Challenges in Emissions Accounting and Further Characteristics
Updated Factors for Calculating PFC Emissions from Primary Aluminum Production
Validation of Online Monitoring of PFC by QCL with FTIR Spectroscopy

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