QualityTonnes


		Home \| QT Español

Who We
Are

Introduction What is a "Quality Tonne" Staff and Office Locations

The Carbon
Market

Introduction The Market Potential How the Market Works UNFCCC Process

QT's Approved
CDM Methodologies

Introduction AM0017 (Steam Efficiency Improvements in China) AM0020 (Water Pumping Efficiency in India) AM0023 (Reducing Gas Leaks in Pipeline Compressor Stations) AM0035 (SF6 Emission Reductions in Electrical Grids) AM0037 (Flare reduction and gas utilization at oil and gas processing facilities) ACM007 (Conversion from Single Cycle to Combined Cycle Generation) AM0048 (Elimination of Diesel Self-Generation) AM0052 (Hydropower Optimization)

Proposed CDM Projects
by QT and its Partners

Replacing SF6 as a Cover Gas in Magnesium Production

QT in the
News

QT Article in Env. Finance QT Article in Carbon Finance Point Carbon, CDM Monitor, July 15, 2004 Article on QT Point Carbon, CDM Monitor, June 14, 2005 Mott-MacDonald Press Release CCC funds buy QT, May 1, 2007

Areas of
Expertise

Power Sector Oil and Gas Sector Renewable Energy and Landfill Gas Energy Efficiency Sequestration

What QT can
do for you

Services: QT Baseline and Monitoring What else can QT do?

Proposed CDM Projects by QT and its Partners

Replacing SF6 as a Cover Gas in Magnesium Production(NM0222)

Because molten magnesium burns in the presence of oxygen, production and casting of magnesium metal requires a protection system to prevent this oxidation. Among the various protection systems commonly used are those that use gaseous components with high GWP values, such as SF6, which typically escape to the atmosphere. SF6, because it is such a non-reactive gas, is ideally suited for this kind of protection as a covering for molten magnesium (hence the term “cover gas”).

Shanghai Meridian Magnesium Products (SMMP) currently uses SF6 as a protective cover gas to prevent oxidation of its molten magnesium. The proposed project will switch over from SF6 to either sulphur dioxide or another gas called Novec-612. The project will stop using the SF6 and instead use a cover gas that has no global warming potential, thus reducing GHG emissions to the atmosphere.

[ back to top ]