Progress on Denitration and Desulfuration Technologies for Marine Diesel Engines

2015 ◽  
Vol 713-715 ◽  
pp. 51-56
Author(s):  
Ya Qiong Liu ◽  
Jia Zhen Du ◽  
Pi Qiang Tan ◽  
Ai Min Du
Keyword(s):  
Diesel Engines ◽  
Emission Control ◽  
Pollutant Emissions ◽  
Exhaust Emission ◽  
Formation Mechanisms ◽  
Emission Regulations ◽  
Marine Diesel ◽  
Practical Performance ◽  
Control Technologies ◽  
Future Technologies

Exhaust emission regulations issued by International Maritime Organization (IMO) for marine diesel engines are given and formation mechanisms for several pollutant emissions are introduced. Main denitration and desulfuration technologies for reducing NOx and SOx emissions are seperately summarized. In addition, working mechanism of different emission control technologies and their applications on marine diesel engines are introduced. These different emission control technologies are analyzed by evaluating conversion efficiency, economy and practical performance, and existed problems and future technologies are given. A Combination of different denitration and desulfuration technologies is a inevitable trend for emission reduction of marine diesel engines.

Waste Gas End-of-Pipe Treatment Techniques in Italian IPPC Chemical Plants

2018 ◽  
pp. 3156-3171
Author(s):  
Gaetano Battistella ◽  
Giuseppe Di Marco ◽  
Carlo Carlucci ◽  
Raffaella Manuzzi ◽  
Federica Bonaiuti ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Inorganic Compounds ◽  
Emission Control ◽  
Operating Conditions ◽  
Chemical Plants ◽  
Waste Gas ◽  
Treatment Techniques ◽  
Emission Regulations ◽  
Control Technologies ◽  
Bat Conclusions

Due to more stringent emission regulations, very efficient emission control technologies are required adopting National IPPC Permits based on BAT Conclusions. Some abatement techniques are operating inside IPPC plants based in Italy. This paper include the results of a screening of Italian IPPC Plants up to day, trying to highlight operating conditions of abatement devices and possible already existing improvements for several compounds removal. The abatement techniques analyzed operate mainly on VOC content reduction or on inorganic compounds abatement. ISPRA experience has allowed to analyze different operative conditions, related with abatement techniques and their application in IPPC permitted plants. The results of this analysis allow to suggest a possible reconsideration and new assessment for some end-of-pipe devices, in order to find other better defined operational contexts, different from actually Italian provisions and an evaluation of current operational performances of the devices, in order to improve their environmental conditions, consistently with BAT application.

Performance and Durability Assessment of Two Emission Control Technologies Installed on a Legacy High-Speed Marine Diesel Engine

2015 ◽  
Author(s):  
Jonathan DeHart ◽  
Robert Russell ◽  
John Storey ◽  
Michael Kass ◽  
Richard DeCorso ◽  
...  
Keyword(s):  
High Speed ◽  
Alternative Fuels ◽  
Emission Control ◽  
Cost Effective ◽  
Operating Conditions ◽  
Marine Engines ◽  
Marine Diesel ◽  
Durability Assessment ◽  
Reduce Emissions ◽  
Control Technologies

The Navy pilot program investigated cost-effective technologies to reduce emissions from legacy marine engines. High-speed, high-population engine models in both commercial and Navy fleets were targeted. Emission reductions were sought that would minimize fuel penalty as well as installation and operating costs. Navy operating conditions and fuels limited options. Five highly rated technologies were laboratory tested on a Detroit Diesel Corporation 12V-71N engine using two military and three alternative fuels. Two control technologies were then shipboard tested (baseline, 1-year early degradation, and 9-year late-life). Conclusions and recommendations are provided to inform application of these and similar emission control technologies within both commercial and Navy fleets.

Research on Emission Control of Marine Diesel Engine

2012 ◽  
Vol 430-432 ◽  
pp. 1198-1202 ◽  
Author(s):  
Guo Jin Chen ◽  
Zhong Min Liu ◽  
Ting Ting Liu ◽  
Shao Hui Su ◽  
Guang Jie Yuan ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Combustion Process ◽  
Emission Control ◽  
Test System ◽  
Injection System ◽  
Low Speed ◽  
Emission Regulations ◽  
Marine Diesel ◽  
Relationship Of

In response to the increasingly stringent diesel emission regulations, the paper analyzes the relationship of the low-speed marine diesel engine's emission with the combustion process, the fuel injection law, the exhaust recirculation and the SCR. Then the scheme of the fuel injection system with the high-pressure common rail for the low-speed diesel engine is proposed, and the test system for the diesel engine's emission performance is established. Through the experimental research, the optimization and matching technology for the diesel combustion process based on the emission control is analyzed, and the best injection law of the diesel engine is revealed under the different conditions. That will provide the technical support for the design and operating management of the diesel engine.

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