Akulon®
Fuel Lock.
Lightweight, low permeation polyamide for CNG tanks.
Natural gas has claimed its place in the automotive industry as a cost eff ective fuel with a low carbon footprint. Countries with major natural gas reserves are increasingly capitalizing on the advantages of using these resources, which is estimated to drive the growth of natural gas use by close to 25% in the coming years.
Compressed Natural Gas (CNG) reduces CO2 emissions by 15% compared to current solutions in petrol or diesel. Further reduction of CO2 emissions can be achieved using lightweight solutions, such as full composite Type IV tanks. Liners made from polyamide Akulon® Fuel Lock further reduce the impact on climate change compared to other plastic liners by reducing the permeation of methane which is a potent greenhouse gas. Permeation of methane is undesirable for tank installations in passenger vehicles, making an eff ective barrier of utmost importance not only for the wellbeing and the comfort of the people but also for the safeguard of the environment.
Akulon Fuel Lock enables the safe use of lightweight composite tanks with an extremely low permeation level.
A focus on reducing weight Steel tanks have the advantage of preventing methane permeation, however they add signifi cant weight to the vehicle with detrimental consequences on fuel economy. The European Union recently adopted a set of mandatory emission reduction targets for new cars. Passenger cars need to comply with a maximum CO2 emission of 95g/km, which is a reduction of 40% over the 2008 rate (sources: European Commission Regulation Proposal July 2012 and International Council on Clean Transportation July 2011).
225 200 175 150 125 100 75 50
750 1000 1250 1500 mass of vehicle [kg] 1750 2000
2006 2009 2020 (target)
The challenge is clear: How can we eff ectively use CNG as a low
carbon emission fuel while avoiding the CO2 penalty that would result from the additional weight of traditional steel tanks? The solution is off ered by Type IV tanks that enable the use of CNG as a fuel while reducing weight.
CO2 emission [g/km]
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