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Power Generation
NIMC Power Generation
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Eco friendly emissions and proven long-term reliability make NIMC partnership Open and Combined Cycle Power Plants Oil Turbine suitable for general supply applications. Our CCPP provide a solution even in areas considered challenging for any other form of power generation, such as remote developing territories, islands and regions with extreme climates. NIMC partnership power plants will operate with the transmission grid of the selected power supply utility when demand for electricity, and as a result prices or consumption , are at their highest. They are engineered for applications with 5000-9000 operating hours a year (1 year 8760 hours). Due to their environmentally advanced design, they are permitted to operate more hours than the conventional peaking plant profile of 100-500 hours a year. |
Basic Description = Oil is first combusted in a combustion turbine, using the heated exhaust gases to generate electricity. After these exhaust gases are recovered, they heat water in a boiler, creating steam to drive a second turbine. |
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In shipping and refineries all kinds of waste oils are produced –so-called slop oils. They come from drainages, residues and cleaning processes, especially cleaning oil tank bottoms. Most of these slop oils contain a high percentage of oil which can be mixed with MDO (oil) to be processed in the treatment system.
If this slop oil is treated, not only disposal costs can be reduced but profit can also be generated with the oil phase recovered from the slop and fired into the Turbine. As the oil as well as water content can vary from 10 to 90 % and the solid content can vary from 1 to 10 % either disk stack centrifuges or decanters can be used for the treatment of slop oil.
NIMC and their partner engineering organizations investigated both options and have come up with the correct combination specific to the Power Generation effort in relation to optimal burning in the Turbine. A truly unique process.
Combustion and Emissions
All of these reactions are endothermic, and result in pollutants of NOx (nitrous oxides) and CO (carbon monoxide). NOx emissions are reduced through control of the combustion process, that is, reducing the combustion temperature. CO production will be reduced by introducing SCR (Selective catalytic reduction) combined with ROFA/ROTA systems. The installation will included placement of the air and ammonia injection boxes, duct, supports, primary/secondary steel, 2 fans, instrumentation, ammonia tank and delivery system, and tie-ins to boiler. Result guaranteed a 64% reduction at 60 MW and expected a 74% reduction at the same load.
Integrated SCR (Selective catalytic reduction) Advantages
By combining the ROFA/Rotamix System with an SCR, certain advantages are found.
These advantages include:
A. Reduced Catalyst Usage
B. NOx Reduction at Low Load
C. Decreased Ammonia Usage and Slip
D. Reduced SO2-to-SO3 Conversion
E. Better Flue Gas Temperature Distribution and Heat Transfer Performance
F. Reduced SCR Pressure Drop
G. Continued NOx reduction when SCR is out of service
Some of the advantages of oil is that it is cleaner; easier to handle, store and transport; easier to burn than coal and produces little ash; and the oil can be atomized for a good mix with combustion air (for gas-like performance).
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