scholarly journals Investigation of Correlation Between Diesel Fuel Cold Operability and Standardized Cold Flow Properties

2019 ◽  
Author(s):  
Máté Zöldy
Keyword(s):  
Environmental Factors ◽  
Diesel Fuel ◽  
Cold Weather ◽  
Classification Methods ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Main Disadvantage ◽  
Lower Correlation

Role of diesel fuel in the mobility is unquestionable despite of diesel scandal. There are several approaches to substitute partially at least it, but in commercial utilization the real alternative is not found yet. Diesel fuel main disadvantage beside the environmental factors is the application properties in cold weather. In the presented research there is an overview and evaluation about the main classification methods of winter properties of diesel. The result is, that CFPP and CP have lower and lower correlation with the newest engine technologies and a new method would be necessary to able to predict the winter behavior of diesel in real conditions. In the paper a specification of a new test equipment is presented.

Formate Esters Containing Biodiesel - Diesel Mixed Fuels

2021 ◽  
Vol 903 ◽  
pp. 75-80
Author(s):  
Valdis Kampars ◽  
Anastasija Naumova
Keyword(s):  
Fatty Acid ◽  
Diesel Fuel ◽  
Fatty Acid Methyl Esters ◽  
Methyl Formate ◽  
Methyl Esters ◽  
Carbon Residue ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Acid Methyl

The blends of varying proportions of biodiesel (FAME) containing formate esters of glycerol and 93.0 wt.% fatty acid methyl esters, obtained in an interesterification reaction with methyl formate without further purification, and winter diesel fuel, were prepared, analyzed and compared with winter diesel fuel. The obtained results showed that blends comprising up to 20 vol.% of FAME fulfill the requirements of the standard LVS EN 590 concerning such characteristics as cold flow properties, viscosity, density, and carbon residue. The increase of FAME content worsens the cold flow properties; however, the mixed fuel with 20 vol.% or lower FAME content, according to the cloud point and cold filter plugging point values, remains in the same severe climate "Class 0" group as winter fuel. The carbon residue of mixed fuels raises with increasing FAME content, but stay low and do not exceed the limits of standard for mixtures with FAME percentage up to 20 vol.%. The comparison of mixed fuels containing 20 vol.% of FAME and the same amount of neat biodiesel (99.6 wt.% of fatty acid methyl esters) shows that the difference is negligible. The obtained results have indicated a good potential of FAME obtained in the interesterification reaction with methyl formate without further purification as a diesel fuel additive for up to 20 vol.%.

Cold Flow Properties Of Automotive Diesel Fuels And Diesel Fuel Systems

1988 ◽  
Author(s):  
Hajime Ise ◽  
Hiroshi Hirano ◽  
Nobuyoshi Nozaki ◽  
Haruo Takizawa ◽  
Mitsuo Tamanouchi ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Flow Properties ◽  
Cold Flow ◽  
Diesel Fuels ◽  
Cold Flow Properties

scholarly journals Biodiesel Production from Four Residential Waste Frying Oils: Proposing Blends for Improving the Physicochemical Properties of Methyl Biodiesel

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4111
Author(s):  
Youssef Kassem ◽  
Hüseyin Çamur ◽  
Ebaa Alassi
Keyword(s):  
Physicochemical Properties ◽  
Diesel Fuel ◽  
Quality Standard ◽  
Biodiesel Production ◽  
Fuel Quality ◽  
Flow Properties ◽  
Frying Oils ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
The Stability

The physicochemical properties of biodiesel fuels and their blends prepared from four residential waste vegetable frying oils (sunflower (FSME), canola (FCME), mixture of sunflower and rapeseed (FSRME) and corn (FSCME)) were evaluated and measured to determine the best blend. The results indicate that the stability of 10 biodiesel blends was above 10 h for 0-month, meeting the stability requirement regulated in EN 14214:2014 by adding FSCME, which depends on the concentration amount of FSCME. Besides, the results showed that all fuel samples did not meet the requirements of diesel fuel standards. Therefore, automobile gasoline is used as an additive to unmixed biodiesel in various concentrations to reduce the kinematic viscosity, density and cold flow properties. The results indicate that BG85 and BG80 have met the mixed pure biodiesel with gasoline fulfilled diesel fuel quality standard. Therefore, the samples with stability above 10 h were mixed with gasoline in 15% and 20% to reduce the cold flow properties and meet the specifications of the diesel fuel standards. Moreover, the effect of long-term storage on the properties of all samples was investigated under different storage conditions. The results indicate that higher storage temperatures and longer storage periods negatively influenced the properties of the fuel samples.

Effect of the nano-hybrid pour point depressants on the cold flow properties of diesel fuel

Fuel ◽  
2017 ◽  
Vol 193 ◽  
pp. 65-71 ◽  
Author(s):  
Zhicheng Zhao ◽  
Yuan Xue ◽  
Guangwen Xu ◽  
Jiawei Zhou ◽  
Xiang Lian ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Pour Point ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Pour Point Depressants

Effects of N-containing pour point depressants on the cold flow properties of diesel fuel

Fuel ◽  
2020 ◽  
Vol 272 ◽  
pp. 117666
Author(s):  
Taishun Yang ◽  
Suya Yin ◽  
Maiying Xie ◽  
Fengfei Chen ◽  
Baoting Su ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Pour Point ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Pour Point Depressants

Influence of Methacrylate-benzyl Methacrylate-N-vinyl-2-pyrrolidone as Pour Point Depression on Cold Flow Properties of Diesel Fuel

2020 ◽  
Vol 34 (2) ◽  
pp. 1514-1523
Author(s):  
Hualin Lin ◽  
Maiying Xie ◽  
Suya Yin ◽  
Taishun Yang ◽  
Baoting Su ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Pour Point ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties

scholarly journals A Mini Review on the Cold Flow Properties of Biodiesel and its Blends

2020 ◽  
Vol 8 ◽  
Author(s):  
M. A. Hazrat ◽  
M. G. Rasul ◽  
M. Mofijur ◽  
M. M. K. Khan ◽  
F. Djavanroodi ◽  
...  
Keyword(s):  
Cetane Number ◽  
Industrial Applications ◽  
Fatty Acid Esters ◽  
Cold Weather ◽  
Biodiesel Fuel ◽  
Engine Fuel ◽  
Cold Filter Plugging Point ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties

Biodiesels are renewable fuel that may be produced from various feedstock using different techniques. It is endorsed in some countries of the world as a viable substitute to diesel fuel. While biodiesel possesses numerous benefits, the cold flow properties (CFP) of biodiesel in comparison with petro-diesel are significantly less satisfactory. This is due to the presence of saturated and unsaturated fatty acid esters. The poor CFP of biodiesel subsequently affects performance in cold weather and damages the engine fuel system, as well as chokes the fuel filter, fuel inlet lines, and injector nozzle. Previously, attempts were made to minimize the damaging impact of bad cold flow through the reduction of pour point, cloud point, and the cold filter plugging point of biodiesel. This study is focused on the biodiesel CFP-related mechanisms and highlights the factors that initialize and pace the crystallization process. This review indicates that the CFP of biodiesel fuel can be improved by utilizing different techniques. Winterisation of some biodiesel has been shown to improve CFP significantly. Additives such as polymethyl acrylate improved CFP by 3-9 ° C. However, it is recommended that improvement methods in terms of fuel properties and efficiency should be carefully studied and tested before being implemented in industrial applications as this might impact biodiesel yield, cetane number, etc.

scholarly journals Physicochemical Properties Enhancement of Biodiesel Synthesis from Various Feedstocks of Waste/Residential Vegetable Oils and Palm Oil

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4928
Author(s):  
Hüseyin Çamur ◽  
Ebaa Alassi
Keyword(s):  
Methyl Ester ◽  
Physicochemical Properties ◽  
Palm Oil ◽  
Diesel Fuel ◽  
Oxidation Stability ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Ultra Low Sulfur Diesel ◽  
Low Sulfur

The main aim of the present study was to improve the oxidation stability and cold flow properties of biodiesel produced from waste frying/cooking oil and palm oil. In this work, waste frying/cooking methyl ester (WFME) and palm methyl ester (PME) were prepared using an alkali-catalyzed transesterification process, and the physicochemical properties of the pure biodiesel as well as of binary blends among them were investigated. The results indicated that palm biodiesel and WFME18, produced from a mixture of frying, cooking, sunflower, and corn oils, can be used as antioxidant additives, enhancing biodiesel stability. Additionally, it was found that WFME1 and WFME12 derived from waste residential canola oil can be used as cold flow improvers for enhancing the cold flow properties of palm biodiesel. Moreover, ultra-low sulfur diesel fuel winter (ULSDFW), ultra-low sulfur diesel fuel summer (ULSDFS), kerosene (KF), and benzene (BF) were utilized to enhance the cold flow properties of the samples and meet the requirements of diesel fuel standards. The investigation of the experimental results indicated that blending WFME-PM with a low proportion of petroleum-based fuel (KF and BF) could significantly improve the cold flow properties (CP and PP) as well as oxidation stability of WFME.

scholarly journals Improving the cold flow properties of marine diesel fuel using centrifugation

2020 ◽  
Vol 11 (29) ◽  
pp. 24-33
Author(s):  
Nikolay Yakovlev ◽  
Vyacheslav Agaev ◽  
Evgeniy Zemlyansky
Keyword(s):  
Low Temperature ◽  
Diesel Fuel ◽  
Freezing Point ◽  
Optimal Parameters ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Depressant Additive ◽  
Marine Diesel ◽  
Centrifuge Rotor

The possibility of improving the low-temperature properties of marine diesel fuel of the Antipinsky Refinery by dewaxing was studied. Paraffin was isolated from the fuel in a centrifuge in the presence of a depressant additive. The depressant additive is selected from a series of synthesized additives for depressant effectiveness. The influence of the centrifuge rotor speed, the additive content and the initial cooling temperature of the sample on the dewaxing parameters of the fuel was studied. The possibility of isolating the additive from the obtained paraffin concentrates is shown. The dewaxing products obtained under optimal conditions were studied. A paraffin concentrate product containing 40.03% solid paraffins was isolated from fuel. Paraffin was isolated from paraffin concentrate by dewaxing with a selective solvent. The cloud point and freezing point of paraffin were 30 and 29 ° C, respectively. When converted to the original fuel, the amount of released paraffins was 7.3% of the 21% by weight contained in the original fuel. The fuel obtained at optimal parameters for low temperature properties corresponds to grade D of diesel fuel according to EN 590: 2009.

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