Fluoropolymers (PTFE, PVDF): Emissions
One vented by-product can dwarf everything else
What this tab covers The greenhouse-gas footprint per tonne, split by lifecycle phase (feedstock, production, movement, use, end of life), the global total, other environmental impacts, levers and low-carbon routes, India's position, and where the investment opportunity lies. Emission intensity 10.0 t CO2e per t range about 7-15 with HFC-23 destruction; hundreds of t CO2e per t if HFC-23 from R22 is vented · derived and indicative: HF about 0.85 t x 0.75, chloroform about 2.4 t at about 2 t CO2e per t, R22 and TFE pyrolysis energy, polymerisation, residual HFC-23 Global emissions per year 4.50 Mt CO2e per year 2025 · about 0.45 Mt x 10 t CO2e/t assuming abatement (derived, indicative); actual HFC-23 leakage could add much morePer t of PTFE (as the main fluoropolymer), cradle-to-gate, with HFC-23 abatement. Intensity: derived from hydrofluoric acid tile (Thunder Said Energy via fluorspar tile) and stoichiometry (indicative). Global total: derived.
Share of footprint by lifecycle phase
Feedstock 55% Production / process 43% Movement 2%Footprint by lifecycle phase
| Phase | Intensity | Share | Main sources of emissions | Notes | Source |
|---|---|---|---|---|---|
| Feedstock | about 5.5 t CO2e/t | 55% | chloroform from methane and chlorine electrolysis, HF from fluorspar and sulphuric acid | Indian and Chinese coal power raises chlorine footprint | derived (indicative) |
| Production / process | about 4.3 t CO2e/t | 43% | R22 synthesis, 700-900 C pyrolysis, separation, polymerisation, residual HFC-23 | HFC-23 is about 1.5-4% of R22 output; each t vented is about 14,600 t CO2e (IPCC AR6 100-year GWP) | indicative |
| Movement | about 0.2 t CO2e/t | 2% | shipping powders and dispersions | small | indicative |
| Use | not applicable for CO2; PFAS release possible | – | polymers are stable in use | residual low-molecular PFAS and processing aids can leach; RAC focused on emissions across the life cycle including waste | plasticsengineering.org, Feb 2026 |
| End of life | about 0.9 t CO2 per t from combustion (calculated from 24% carbon); main issue is PFAS formation | – | landfill or incineration | incomplete incineration can form short-chain PFAS and fluorinated gases; high-temperature incineration above about 1,000 C is required (indicative) | calculated; indicative |
Other environmental impacts
PFAS persistence ('forever chemicals') near production sites; HFC-23 emissions (atmospheric studies have found HFC-23 emissions above reported levels, indicative); fluoride and HF releases; worker exposure.
Levers to cut emissions
- Destroy HFC-23 by thermal oxidation at every R22 plant (India mandated this in 2016; hydrofluoric acid tile).
- Replace fluorinated polymerisation aids with non-fluorinated surfactants (Chemours, Daikin and others announced programmes; indicative).
- Renewable power for chlor-alkali and pyrolysis.
- Substitute fluoropolymers where alternatives exist (cookware, textiles, some coatings) and keep them in critical uses.
India
Indian fluoropolymer makers already destroy HFC-23 under the 2016 MoEFCC direction (hydrofluoric acid tile). Their footprint is driven by coal-heavy power for chloroform and HF.
Emission figures are indicative global averages from the life-cycle studies named; actual footprints vary widely by site, energy mix and method.Low-carbon routes
| Route | Intensity | Cost premium | Status | Source |
|---|---|---|---|---|
| Non-fluorinated processing aid PTFE and PVDF | similar CO2; much lower PFAS emissions (indicative) | not published | commercial at several Western and Japanese sites (indicative) | indicative |
| Fluoropolymer recycling (PTFE upcycling to monomer) | not published | not published | pilot scale in Germany (indicative) | indicative |