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Solutions for avoiding emissions

How Blue Competence reduces CO2 emissions

By providing energy-efficient and resource-efficient technologies, the mechanical engineering industry has considerably reduced industrial emissions over the last 10 years. So we have not just made a substantial contribution to achieving the climate protection specifications set out in the Kyoto Protocol, but are already laying the foundations for achieving further ambitious climate protection targets today.

climate protection targets today. Compared with 1998, German industry was able to avoid 71 million tonnes of specific CO2 emissions in 2008 by employing innovative machinery and systems. By 2018, it is anticipated that it will be possible to save 198 million tonnes of CO2 emissions each year by employing modern mechanical engineering technologies. This is equivalent to roughly a quarter of all the annual emissions of carbon dioxide in Germany.

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Three specific insights

Reducing exhaust fumes on seagoing ships

As well as the introduction of modern fuel injection systems, measures within engines and multi-stage turbochargers in ship engines, what are known as SCR catalytic converters greatly reduce the emissions produced in modern shipping. In combination with other systems such as gas scrubbers for capturing the sulphur oxide, the emission figures can be reduced to just a fraction. Similarly good results can be achieved with liquefied natural gas (LNG) as a fuel. There are already decades of experience of working with LNG on gas tankers, but wider areas of application are now increasingly being developed.

Gas engines in combined heat and power plants: a clean technology

The gas engines in combined heat and power plants can be configured as lean-burn engines in such a way that hardly any nitric oxides are produced during the incineration process. With gas as the fuel, particle emissions are also not an issue. The use of biogas as a renewable form of energy has advantages in terms of climate policy. However, the composition of the gas means that formaldehyde is produced when it is burnt. With technologies for ultrafine cleaning of gas, catalytic converters and thermal reactors, the industry has developed measures to minimise the emissions.

Industrial engines in mobile applications

Industrial engines are absolutely essential for driving mobile machinery such as tractors or diggers, locomotive engines or river barges. This is because they provide the necessary power largely independently of the local infrastructure. After making maximum use of measures within the engine for reducing emissions, there are similar challenges for the various mobile applications when it comes to after-treatment of the exhaust gas. Technologies such as particle filters and catalytic converters are employed in a confined installation space, in changing ambient conditions. The engine manufacturers and exhaust gas after-treatment companies work together with their customers to develop customised solutions. The successes are impressive: The level of emissions of NOx and particles in the latest generation of engines is just about 4% of the first limit values which were set at the end of the 1990s.

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