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1. Cyclohexyl nitrate is an effective cetane number improver for diesel oil.

2. Cetane index are higher than the value in the contract.

3. The influence of cetane number improver on heat release rate and emissions of a high-speed diesel engine fueled with ethanol-diesel blend fuel was investigated.

4. A diesel fuel cetane number improver, which constituent is a naphthenic nitrate, is developed, and physicochemical properties of this im-prover is determined.

5. Cetane Number ( CN ) of diesel has effect on cold startability and emissions in a diesel Engine.

6. Cetane improver . Makes the engine run better at higher compression settings.

7. An ashless, alcohol-free additive that improves cetane up to seven points for increased power and performance in all diesel engines.

8. The numerical result calculated by the formula for estimating the cetane number of distillate fuels from American Petroleum Institute (API) gravity and midboiling point.

9. Determines the Pump Octane Number (AKI), Research Octane Number (RON), and Motor Octane Number (MON) of unleaded gasolines, and optional Cetane Index and Cetane Number for diesel fuels.sentence dictionary

10. Bio - fuel has the advantages of less emission, higher cetane number, and no carcinogens produced.

11. Based on the performance of diesel fuels in diesel engine, the cetane number was predicted by the determination of autoignition temperature.

12. Indole catalytic cracking was performed on a fixed-bed microactivity test unit by using toluene, cetane, and tetralin as solvents.

13. Quinoline catalytic cracking was studied on a fixed-bed microactivity test unit by using toluene, cetane, and tetralin as solvent.

14. The significance, properties and characteristics, action mechanism and classification of cetane number improver are introduced systematically in this paper.

15. To improve the CO and opacity smoke emissions, the fuel cetane number exists an optimum.

16. Shell GTL Fuel is a homogenous synthetic fuel with virtually no sulphur and aromatics, and a high cetane level which improves fuel combustibility.

17. With scientific experiment, this thesis mainly was concerned about the detailed ways of overhaul, debugging and sample test operation of diesel oil cetane Rating method.

18. In conclusion, the influence of the control parameters to the ignition delay is increased with the increase of the octane number and the decrease of the cetane number of the fuel.

19. Dimethoxymethane possesses higher quantity of oxygen, higher ratio of hydrogen to carbon and lower flash point. It can improve cetane number when mixed with the diesel oil.

20. It is significant for locomotive diesel engine to burn low cetane fuel.

21. Operation procedure is introduced for initial run and break-in, and the fuel and lube oil quality for engines are specified (mainly for their cetane rating, fractions and viscosity).