2022年3月14日 · Perfluorocyclobutane (c-C 4 F 8, PFC-318, octafluorocyclobutane, CAS 115-25-3) is a potent greenhouse gas (GHG) with a global warming potential of 10 200 on a 100-year timescale (GWP 100) based on a lifetime estimate of 3200 years (Forster et al., 2021).

The following table includes the 100-year time horizon global warming potentials (GWP) relative to CO2. This table is adapted from the IPCC Fifth Assessment Report, 2014 (AR5)i.

Abstract. We reconstruct atmospheric abundances of the potent greenhouse gas c-C4F8 (perfluorocyclobutane, perfluorocarbon PFC-318) from measurements of in situ, archived, firn, and aircraft air samples with precisions of ∼1 %–2 % reported on the SIO-14 gravimetric calibration scale.

More likely seems that the GWP weighted mix of fugitive emissions from 26 category 2E1 from these countries is similar to the mix for category 2E1 from European countries which report 27 individual emissions for category 2E1. For the European Union, c-C4F8 represents ~0–8 % of the GWP weighted 28 PFC mix (CF4, C2F6, C3F8, c-C4F8) from 2E1. If ...

c-c4f8 10,300 pfc-3-1-10 c4f10 8,860 pfc-4-1-12 c5f12 9,160 pfc-5-1-14 ch3cf3 4,470 hfc-152a ch3chf2 124 hfc-227ea cf3chfcf3 3,220 hfc-236fa cf3ch2cf3 9,810 hfc-245fa chf2ch2cf3 1030 hfc-365mfc ch3cf2ch2cf3 794 hfc-43-10mee cf3chfchfcf2cf3 c6f14 9,300 pfc-9-1-18 c10f18 >7,500 三氟甲基五氟化硫 sf5cf3 17,700 氟化醚 hfe-125 chf2ocf3 ...

The GWP of c-C 4 F 8 O is about one-third that of SF 6 and its dielectric strength is about 1.2–1.4 times that of SF 6. CO 2 and N 2 are mixed with c-C 4 F 8 O to lower liquefaction temperature and GWP.

2021年11月4日 · We find a global emission factor of ~0.003 kg c-C4F8 per kg of HCFC-22 FS pyrolyzed. Mitigation of these c-C4F8 emissions, e.g., through process optimization, abatement, or different...

2021年6月5日 · Octafluorocyclobutane (C4F8) with a GWP100 (global warming potential) of 10,000 times of CO2 is listed as potent greenhouse gas. Therefore, development of effective control technologies for reducing C4F8 emissions has become an emerging issue to …

中文名:八氟环丁烷,英文名:perfluorocyclobutane,CAS:115-25-3,化学式:C4F8,分子量:200.03,密度:1,48 g/cm3,熔点:-41.4 °C,沸点:-6 °C,蒸汽压:2220mmHg at 25°C,折射率:1.217,MSDS.

Decomposition of C4F8 achieved with catalytic hydrolysis reaches the highest efficiency of 20.1%, being obtained with γ-Al2O3 as catalyst in the presence of 10% H2O(g) and operating temperature...