Zero Percent of Light Products in Mazut. Illusion or Reasonable Perspective?

2021 ◽  
Vol 626 (4) ◽  
pp. 48-52
Author(s):  
N. V. Karpov ◽  
◽  
N. N. Vakhromov ◽  
E. V. Dutlov ◽  
M. A. Bubnov ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Aromatic Compounds ◽  
Boiling Point ◽  
Fraction Composition

Yield of light products on atmospheric vacuum piepstill units is suggested to increase by means of making more heavy 95% boiling point of diesel fuel from 360°C (GOST requirements) to 365°C. Then fraction composition is getting lighter due to hydrogenating of aromatic compounds in heavy part of diesel fuel during hydrotreating. Test run confirmed the correctness of theoretical insights.

Effect of n-heptane and n-decane on exhaust odour in direct injection diesel engines

2005 ◽  
Vol 219 (4) ◽  
pp. 565-571 ◽  
Author(s):  
M M Roy
Keyword(s):  
Direct Effect ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Ignition Delay ◽  
Boiling Point ◽  
Alternative Fuels ◽  
Direct Injection ◽  
Cetane Number ◽  
Mixture Formation ◽  
Incomplete Combustion

This study investigated the effect of n-heptane and n-decane on exhaust odour in direct injection (DI) diesel engines. The prospect of these alternative fuels to reduce wall adherence and overleaning, major sources of incomplete combustion, as well as odorous emissions has been investigated. The n-heptane was tested as a low boiling point fuel that can improve evaporation as well as wall adherence. However, the odour is a little worse with n-heptane and blends than that of diesel fuel due to overleaning of the mixture. Also, formaldehyde (HCHO) and total hydrocarbon (THC) in the exhaust increase with increasing n-heptane content. The n-decane was tested as a fuel with a high cetane number that can improve ignition delay, which has a direct effect on wall adherence and overleaning. However, with n-decane and blends, the odour rating is about 0.5-1 point lower than for diesel fuel. Moreover, the aldehydes and THC are significantly reduced. This is due to less wall adherence and proper mixture formation.

scholarly journals THE APPLICATION OF AMINO – AND HYDROXYETHYL IMIDAZOLINES OF PETROLEUM ACIDS AS MULTIFUNCTIONAL ADDITIVES FOR DIESEL FUEL

2016 ◽  
Vol 11 (10) ◽  
pp. 3828-3833
Author(s):  
Anar Amil Namazov ◽  
Vagif Maharram Abbasov ◽  
Tarana Aslan Mammadova ◽  
Khayyam Rahim Valiyev ◽  
Khayala Hamlet Kasamanli
Keyword(s):  
Diesel Fuel ◽  
Boiling Point ◽  
The Other ◽  
Antistatic Property ◽  
Other Hand ◽  
Multifunctional Additives ◽  
Antistatic Effect ◽  
Over Time ◽  
Better Than ◽  
Petroleum Acid

In this research, the influence of amino- and hydroxyethyl imidazolines of petroleum acids on the antistatic property and lubricity of diesel fuel has been studied. The researches illustrated that when the boiling point of petroleum acid fractions increases, the influence of imidazolines on the antistatic property and lubricity of diesel fuel decreases. Besides, it has been known that, the influence of aminoethyl imidazolines of petroleum acids on the antistatic property and lubricity of diesel fuel is better than the influence of hydroxyethyl imidazolines, On the other hand, it has been revealed that, when imidazolines of petroleum acids are added to the diesel fuel, the antistatic effect increases over time.

Analysis of the polycyclic aromatic compounds of diesel fuel by gas chromatography with ion-trap detection

1988 ◽  
Vol 15 (9) ◽  
pp. 517-519 ◽  
Author(s):  
Paul T. Williams ◽  
Gordon E. Andrews ◽  
Keith D. Bartle ◽  
Paul Bishop ◽  
Peter Watkins
Keyword(s):  
Gas Chromatography ◽  
Diesel Fuel ◽  
Aromatic Compounds ◽  
Ion Trap ◽  
Polycyclic Aromatic Compounds ◽  
Polycyclic Aromatic

Alternative butanol/gasoline and butanol/diesel fuel blends: An analysis of the interdependence between physical-chemical properties by a multivariate principal component analysis model

2018 ◽  
Vol 31 (5) ◽  
pp. 733-754
Author(s):  
Luiz Filipe Paiva Brandão ◽  
Jez Willian Batista Braga ◽  
Paulo Anselmo Ziani Suarez
Keyword(s):  
Principal Component Analysis ◽  
Diesel Fuel ◽  
Boiling Point ◽  
Principal Component ◽  
Component Analysis ◽  
Analysis Model ◽  
Principal Component Analysis Model ◽  
Initial Boiling Point ◽  
Fuel Blends ◽  
Physical Chemical

The use of butanol as an oxygenated component in blends with fossil fuels has recently been recognized by the industry as a promising and green alternative for automotive use, being subject of several recent studies. In this work, the interdependence between important physical-chemical properties of butanol/gasoline and butanol/diesel fuel blends was investigated using a multivariate principal component analysis model. The model dataset was based on laboratorial results of density, kinematic viscosity, distillation, vapor pressure, octane rating, anti-knock index, flash point and cetane number in a total of 48 blends, the variables of which were transformed to principal component analysis matrix representations, pre-processed and then analyzed. A good coherence was observed between the experimental results in laboratory and those derived from the principal component analysis models, evidencing important physical-chemical changes in blends’ properties due to the butanol addition. Principal component analysis scores and loadings plots could provide an intuitive and comprehensive data visualization. Butanol/gasoline fuel blends showed an overall increase in density, octane rating and higher distillation temperatures from the initial boiling point to T60 (temperature of the 60% distilled volume) and reduction of the distillation temperatures from T70 to the final boiling point. An absolute reduction in values of all properties was observed for butanol/diesel fuel blends, especially for initial distillation temperatures from initial boiling point to T35, T98, final boiling point and flash point, whereas the reductions for density, kinematic viscosity and cetane number were less intense. Total variances of up to 92.50% and 94.14% were explained by the proposed principal component analysis model, depending on the blends matrix and butanol isomer composition.

Normal Heptane-Diesel Combustion and Odorous Emissions in Direct Injection Diesel Engines

2008 ◽  
Vol 130 (1) ◽  
Author(s):  
Murari Mohon Roy
Keyword(s):  
Diesel Fuel ◽  
Ignition Delay ◽  
Boiling Point ◽  
Direct Injection ◽  
Volatile Components ◽  
Diesel Combustion ◽  
Gas Temperature ◽  
Eye Irritation ◽  
Heat Of Evaporation ◽  
High Latent Heat

This study investigated normal heptane (N-heptane)-diesel combustion and odorous emissions in a direct injection diesel engine during and after engine warmup at idling. The odor is a little worse with N-heptane and blends than that of diesel fuel due to overleaning of the mixture. In addition, formaldehyde (HCHO) and total hydrocarbon (THC) in the exhaust increase with increasing N-heptane content. However, 50% and 100% N-heptane showed lower eye irritation than neat diesel fuel. Due to low boiling point of N-heptane, adhering fuel on the combustion chamber wall is small and as a single-component C7 fuel, relatively high volatile components present in the exhaust are low. This may cause lower eye irritation. On the contrary, bulk in-cylinder gas temperature is lower and ignition delay significantly increases for 50% and 100% N-heptane due to the low boiling point, high latent heat of evaporation, and low bulk modulus of compressibility of N-heptane than standard diesel fuel. This longer ignition delay and lower bulk in-cylinder gas temperature of N-heptane blends deteriorate exhaust odor and emissions of HCHO and THC.

Direct-Acting Mutagenicity of Diesel Participate Extract Is Unchanged by Addition of Neat Aromatic Compounds to Diesel Fuel

JAPCA ◽  
1988 ◽  
Vol 38 (1) ◽  
pp. 56-58 ◽  
Author(s):  
Trescott E. Jensen ◽  
Willie Young ◽  
James C. Ball ◽  
Lois E. Freeman
Keyword(s):  
Diesel Fuel ◽  
Aromatic Compounds ◽  
Direct Acting
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