Research Progress on Control Technology of Diesel Engine NOX and PM Emissions

2014 ◽  
Vol 1008-1009 ◽  
pp. 1016-1021 ◽  
Author(s):  
Xing Qiao ◽  
Yin Nan Yuan ◽  
Xiu Chen ◽  
Yong Bin Lai ◽  
Ling Ling Cai ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Exhaust ◽  
Emission Control ◽  
Research Progress ◽  
Exhaust Emission ◽  
Fuel Quality ◽  
Control Technology ◽  
Engine Exhaust ◽  
Development Direction ◽  
Research Situation

With the promotion of energy-saving and exhaust reduction policy, the application of diesel engine has been further extended. The formation and harm of nitrogen oxides (NOX) and particulate matter (PM) were mentioned in detail, which are major pollutants in diesel exhaust. Reviewed the research progress and application of diesel engine exhaust emission control technology, fuel quality improvement, internal purification and after-treatment are introduced separately. Finally, the future development direction of exhaust emission control technology was given combining research situation of diesel engine.

The Harm and Discussion on Control Technology of Flameproof Diesel Engine Exhaust Emissions

2017 ◽  
Vol 865 ◽  
pp. 224-229
Author(s):  
Xiao Wang
Keyword(s):  
Diesel Engine ◽  
Coal Mine ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Control Technology ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Development Direction

It described that the main harmful exhaust emissions in the flameproof diesel engine of the flameproof vehicle with the rubber wheeles in the coal mine ,and the harm of the work personnel health in underground, Introduces the technology and method of controlling the exhaust emission of the coal mine explosion proof diesel engine, Points out the problems of control technology and insufficiency in exhaust emission, And puts forward the thought and development direction controlling exhaust emissions technology of the explosion proof diesel engine of coal mine on future.

scholarly journals Diesel exhaust nanoparticles and their behaviour in the atmosphere

2018 ◽  
Vol 474 (2220) ◽  
pp. 20180492 ◽  
Author(s):  
Roy M. Harrison ◽  
A. Rob MacKenzie ◽  
Hongming Xu ◽  
Mohammed S. Alam ◽  
Irina Nikolova ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Size Distribution ◽  
Diesel Exhaust ◽  
Dynamical Behaviour ◽  
Air Pollutant ◽  
Diesel Exhaust Particles ◽  
Atmospheric Conditions ◽  
Engine Exhaust ◽  
Number Count ◽  
Model Studies

Diesel engine emissions are by far the largest source of nanoparticles in many urban atmospheres, in which they dominate the particle number count, and may present a significant threat to public health. This paper reviews knowledge of the composition and atmospheric properties of diesel exhaust particles, and exemplifies research in this field through a description of the FASTER project (Fundamental Studies of the Sources, Properties and Environmental Behaviour of Exhaust Nanoparticles from Road Vehicles) which studied the size distribution—and, in unprecedented detail, the chemical composition—of nanoparticles sampled from diesel engine exhaust. This information has been systematized and used to inform the development of computational modules that simulate the behaviour of the largely semi-volatile content of the nucleation mode particles, including consequent effects on the particle size distribution, under typical atmospheric conditions. Large-eddy model studies have informed a simpler characterization of flow around the urban built environment, and include aerosol processes. This modelling and engine-laboratory work have been complemented by laboratory measurements of vapour pressures, and the execution of two field measurement campaigns in London. The result is a more robust description of the dynamical behaviour on the sub-kilometre scale of diesel exhaust nanoparticles and their importance as an urban air pollutant.

Purification of Diesel Exhaust Gas Using Reducing Catalysers

1997 ◽  
Vol 2 (2) ◽  
Author(s):  
Katsuharu Kinoshita ◽  
Shigeo Watanabe, ◽  
Niichi Hayash ◽  
Yoshiyuki Uchida ◽  
David Dykes ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Diesel Exhaust ◽  
Nox Reduction ◽  
Exhaust Gas ◽  
Gas Purification ◽  
Photochemical Smog ◽  
Engine Exhaust ◽  
Suitable Temperature ◽  
Series Of Experiments ◽  
Outstanding Result

AbstractDiesel engine exhaust gas is known to be one cause of photochemical smog, which is so damaging to city environments. However, because of its high thermal efficiency and economic advantages, the diesel engine is not easily dispensable. The authors have previously conducted a series of experiments to assess the purifying effects of a diesel gas purification device employing an electric trap. It has been confirmed that an extraction rate of 60∼75 % for black smoke can be achieved using this apparatus. But the extraction effect for nitrogen oxides (NOx) is insufficient if the electro-trap device is used on its own. To improve its performance, experiments have now been undertaken using the same device in combination with various types of attached catalysers to oxidise and remove the nitrogen in the exhaust gas. Utilising a commercial 3-way catalyser, it proved difficult to maintain the gas at a suitable temperature, so that no outstanding result could be obtained. Nor was any significant result observ­ed from the use of an ozoniser. However, with a zeolyte catalyser, it was possible to achieve a NOx reduction of 20∼30 %. This latter experiment is reported in the present paper.

A Unique Titania-Based SCR NOx Catalyst for Diesel Exhaust Emission Control

2005 ◽  
Author(s):  
Ikuhisa Hamada ◽  
Yasuyoshi Kato ◽  
Naomi Imada ◽  
Hirohumi Kikkawa ◽  
Akihiro Yamada
Keyword(s):  
Diesel Exhaust ◽  
Emission Control ◽  
Exhaust Emission ◽  
Diesel Exhaust Emission Control
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