Corporate Social Responsibility Report (810 KB) - Tognum AG

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02 Corporate Social Responsibility | Report, June 2008 | Products and technology of ash. No additional fuel is needed to regenerate the filters. Other advantages include low weight and minimal installation space. PI TE NO x Another important step in exhaust gas after-treatment is the conversion of nitrogen oxides. A small amount of urea is added to the exhaust gas. In the commercial vehicle sector, this additive is known as AdBlue. In the SCR catalytic converters, nitrogen oxides are converted into water (H 2O) and harmless nitrogen (N 2) at temperatures of 200 to 500 degrees Celsius. The conversion quota can be as high as 90 percent. Gas engines in the MTU 4000 series In the gas engine sector for stationary energy supply, MTU Friedrichshafen has further optimised the new 4000 series. In 2008, MTU is offering a new model with additional cylinder variants. The engines in the 4000 series are available as 8-, 12-, 16- and 20-cylinder versions for natural gas operations. Further highlights of the latest development include an increase in output to 110 kW per cylinder (resulting in a mechanical output of 2.2 mW), further improvements in motor efficiency and the development of engines for biogas applications. Cogeneration with biogas NH 3 /NO x SiC-DPF SCR MTU TT8V 4000 Urea tank SCR control The decentralised energy systems at Tognum are characterised by their high level of efficiency in converting energy directly on-site. During cogeneration, power and heat are used at the same time, in order to achieve efficiency levels of up to 90 percent. This saves resources and reduces environmentally harmful emissions. Tognum offers cogeneration units that are based on gas engines and fuel cells. The use of regenerative biogas and special gases means that fossil fuels can be left alone, ensuring that the systems are CO 2-neutral. NO x TA Function diagram of exhaust gas aftertreatment with diesel particle filter and SCR catalytic converter. At the Uehlfeld biogas plant, crops are used exclusively to produce biogas. 10
02 Corporate Social Responsibility | Report, June 2008 | Products and technology Fuel cells With its fuel cell technology, CFC Solutions has already taken a step towards the decentralised energy supply of the future. Based on a high-temperature carbonate fuel cell (the so-called 'HotModule'), the system has impressed everyone with its unrivalled low emissions. In addition to supplying industrial premises and hospitals with heat and power, this technology is also likely to be employed in new usage areas that have arisen as a result of increasingly strict emissions regulations: the provision of an environmentally-friendly onboard power supply for ships is currently the subject of a research project. Diagram of a high-temperature carbonate fuel cell – the 'HotModule' from CFC Solutions. 11
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Corporate Social Responsibility Report (810 KB) - Tognum AG

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