In urban areas diesel vehicles are causing air pollution (from carbon particles, nitrogen oxides (NOX)) and unburned hydrocarbons). As the European legislation tightens the rules for emissions, it will become more difficult and expensive to meet the requirements for particulate filters and DeNOx technologies.
A new four-year project at Risø DTU is going to develop an effective method for purifying flue gases, especially exhaust gases from diesel engines. The project has received DKK 17 million from the Danish Council for Strategic Research (the Programme Commission on Sustainable Energy and Environment)
Electrochemical flue gas purification
Existing solutions to air pollution require the installation of particulate filters and either an SCR catalyst (Selective Catalytic Reduction) a NOx absorber or recirculation of the exhaust gas. This leads to additional expenditure when modifying diesel vehicles to be less polluting.
Electrochemical flue gas purification has a number of advantages over existing filters making it attractive to target this research at the car industry. Purification of carbon particles, toxic nitrogen oxides (NOX) and unburned hydrocarbons from the exhaust can all happen in the same filter unit.
Another advantage of using electrochemical methods is that it is not necessary to add other substances to the fuel. In addition the filter can be produced without the use of precious metals. The current SCR technology typically uses the nitrogen-containing urea as a reducing agent to remove NOx from the exhaust.
The purification of exhaust gas will therefore be conducted independently of the engine operation. This technology could lead to significant fuel savings compared with leading alternative technologies. The technology could also be applied in the purification of flue gas from power plants, and possibly in the shipping industry.
Expansion of the research group
The ambitious research project will involve the employment of five PhDs and two postdocs in the near future. Together with the present research team they are going to further develop the technology into a successful prototype for use under realistic conditions in a diesel engine.
The project is led by Kent Kammer Hansen, Senior Scientist in the Fuel Cells and Solid State Chemistry Division at Risø National Laboratory for Sustainable Energy, the Technical University of Denmark. Also participating in the project are the Department of Mechanical Engineering at DTU and the company Dinex Emission Technology A / S.
Hanne Krogh | alfa
Further reports about: > Air Pollution > DTU > DeNOx technologies > Electrochemical flue gas purification > Emission > NOx > Risø > SCR > Selective Catalytic Reduction > Sustainable Energy > Sustainable bioenergy > carbon particles > diesel engines > exhaust gas > nitrogen oxides > unburned hydrocarbons > urban areas
Listening in: Acoustic monitoring devices detect illegal hunting and logging
14.12.2017 | Gesellschaft für Ökologie e.V.
How fires are changing the tundra’s face
12.12.2017 | Gesellschaft für Ökologie e.V.
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
14.12.2017 | Health and Medicine
14.12.2017 | Physics and Astronomy
14.12.2017 | Life Sciences