latest news: Greenhouse/Ozone Gases
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Global thirst for electricity is fuelling the rise of a potent greenhouse gas
A construction boom for electric power plants in countries such as China has contributed to a spike in emissions of a greenhouse gas used to insulate electrical equipment such as circuit breakers. Credit: Hu Weiguo/VCG via Getty Emissions of sulfur hexafluoride soared over the 40 years to 2018, despite some countries’ efforts to curb […]
International Greenhouse/Ozone Gases -
The increasing atmospheric burden of the greenhouse gas sulfur hexafluoride (SF6)
Abstract We report a 40-year history of SF6 atmospheric mole fractions measured at the Advanced Global Atmospheric Gases Experiment (AGAGE) monitoring sites, combined with archived air samples, to determine emission estimates from 1978 to 2018. Previously we reported a global emission rate of 7.3±0.6 Gg yr1 in 2008 and over the past decade emissions have […]
International Greenhouse/Ozone Gases -
Arkema invests in U.S. anhydrous hydrogen fluoride production
Arkema S.A. (Colombes, France) has announced a long-term partnership with Nutrien Ltd, the largest integrated agricultural company in the world, for the supply of anhydrous hydrogen fluoride to Arkema’s Calvert City (Kentucky) site. This project has many advantages, as it secures a competitive access to anhydrous hydrogen fluoride, the main raw material for fluorine chemistry, […]
United States, North Carolina Chemical Industry Greenhouse/Ozone Gases -
New Antidumping Petition on Difluoromethane from China
Note from Fluoride Action Network Difluoromethane, CAS No. 75-10-5, is a refrigerant and a substitute for ozone destroying chemicals. See EPA discussion of R-448A (a substitute) here. It’s structural formula is: Arkema Inc. (“petitioner”), on January 23, 2020, filed an antidumping (AD) petition on imports of difluoromethane (or “R-32”) from China. The U.S. AD law […]
China Greenhouse/Ozone Gases -
Microsoft patents high pressure data center
Hermetically sealed data centers for efficient heat transfer Microsoft has been awarded a high pressure data center patent that would allow for far more efficient heat transfer than traditional approaches. “Some data centers employ heat sinks and electric fans (which can consume a substantial amount of energy),” the filing (Patent US10426062) states. “In cases of […]
International Greenhouse/Ozone Gases -
Grid switchgear uses SF6, the world’s most potent greenhouse gas. How do we regulate it?
Sulphur Hexafluoride (SF6) is described as the world’s worst greenhouse gas. It’s 23,500 times more potent than CO2. Global annual emissions are 8,100 tonnes, equivalent to the CO2 emissions of 100m cars. It has an atmospheric lifetime of over 1,000 years and its installed base is expected to grow by 75% by 2030. 80% of […]
International Greenhouse/Ozone Gases -
Siemens revamps German substation – replacing SF6 with ‘clean air’
German transmission system operator TransnetBW has commissioned Siemens to retrofit a large substation as part of up grid upgrades needed to integrate more wind. Siemens will supply the new switchgear for the 380 kV Daxlanden substation in Karlsruhe, Baden-Wurttemberg. The commissioning of the turnkey solution at Daxlanden – one of the largest substations in Germany […]
Germany Greenhouse/Ozone Gases -
Hydrolysis of Formyl Fluoride Catalyzed by Sulfuric Acid and Formic Acid in the Atmosphere.
Abstract Formyl fluoride (HFCO) is an important atmospheric molecule, and its reaction with the OH radical is an important pathway when degradation of HFCO is considered in earth’s troposphere. Here, we study the hydrolysis of formyl fluoride (HFCO + H2O) with sulfuric acid (H2SO4) and formic acid (HCOOH) acting as catalysts by utilizing M06-2X, CCSD(T)-F12a, […]
International Greenhouse/Ozone Gases -
South Korea’s Greenhouse Gas Emissions Hit New High in 2017
The Greenhouse Gas Inventory and Research Center of the Ministry of Environment announced on Oct. 7 that South Korea’s greenhouse gas emissions totaled a record high of 709.14 million tons in 2017, up 2.4 percent from a year earlier. The previous high was 696.7 million tons in 2013. Specifically, greenhouse gas emissions for electricity and […]
South Korea Greenhouse/Ozone Gases -
World’s Worst Greenhouse Gas Lurks at a Power Station Near You
GE aims to remove sulfur hexafluoride from electric gear Gas has 23,500 times warming potential of CO2, doesn’t go away The most potent greenhouse gas yet measured doesn’t spew by the ton from cars or trucks. You won’t find it in human breath, and cows don’t belch it. Yet sulfur hexafluoride, or SF6, can do […]
Greenhouse/Ozone Gases