scholarly journals Expansion of the feedstock base for the production of diesel fuel by involving the heavy fractions and cold flow improvers

Author(s):  
Maria Kirgina ◽  
Ilya Bogdanov ◽  
Nataliya Belinskaya ◽  
Andrey Altynov ◽  
Yana Morozova

In this paper, the viability of expanding the feedstock base of diesel fuel production by the involvement of the heavy diesel fraction and the use of cold flow improvers was shown. The influence of the heavy diesel fraction content in the diesel fuel composition on its low-temperature properties and the effectiveness of the cold flow improver were studied. It was established that the involvement of a small amount of the heavy diesel fraction (up to 3 vol%) increases the effectiveness of the cold flow improver in relation to the cold filter plugging point. The following recipes of diesel fuel production were recommended: the involvement of up to 5 vol% heavy diesel fraction allows producing fuel of the summer grade; the involvement of up to 5 vol% heavy diesel fraction and the cold flow improver allows producing fuel of the inter-season grade; and the involvement of up to 3 vol% heavy diesel fraction and the cold flow improver to produce fuel of the winter grade.

2013 ◽  
Vol 781-784 ◽  
pp. 2480-2483
Author(s):  
Ho May Yun ◽  
Junaid Ahmad ◽  
Suzana Yusup ◽  
Ruzaimah Nik Mohammad Kamil ◽  
Vui Soon Chok ◽  
...  

Inevitable low temperature properties is one of the major problems in commercialization of pure biodiesel. Increasing the usage of edible oil in biodiesel production creates the fuel versus food controversy. This paper involves the study of cold flow properties of edible and non-edible oils biodiesel. Corn biodiesel and jatropha biodiesel are blended respectively. The blend ratio of corn methyl ester and jatropha methyl ester CME: JME (20:80) has the oxidative stability of 6.42 hours and cold filter plugging point value of-2 oC. An additive of acrylic co-polymer as the cold flow improver (CFI) reduced the CFPP value from-2 oC to-6 oC which results in better low temperature properties of corn-jatropha biodiesel blend.


2011 ◽  
Vol 236-238 ◽  
pp. 708-714 ◽  
Author(s):  
Hong An ◽  
Shu Gang Gao ◽  
Shuang Li ◽  
Yan Xin Xie

The n-tetradecylacrylate-vinyl acetate copolymer (PPV) was prepared from n-tetradecylacrylate and vinyl acetate. The PPV was employed as pour point depressant to improve the low-temperature fluidity of the -20# diesel from Daqing Petrochemical Company. The result indicated that the solidification (SP) and the cold filter plugging point (CFPP) were affected largely by PPV. And when mass fraction of PPV -14(copolymerization conditions: 80 °C,w(benzoyl peroxide)1%(total weight of raw materials), n(vinyl acetate)∶n(n- tetradecanolacrylate) = 4∶1 ) in diesel fuel was 0.1%wt, the SP reduced by 15.0 °C, the CFPP reduced by 6.0 °C simultaneously; We analysise the different molecular weight of PPV-14, and discover that the molecular weight of PPV-14 is ralated to the the low-temperature fluidity of the -20# diesel from Daqing Petrochemical Company. When mass fraction of PPV -14(molecular weight is 15000, distribution coefficient is 3.11) in diesel fuel was 0.1% wt, the SP reduced by 18.0 °C, the CFPP reduced by 7.0 °C, simultaneously.


2019 ◽  
Vol 73 (2) ◽  
pp. 103-114 ◽  
Author(s):  
Ivan Tasic ◽  
Milan Tomic ◽  
Aleksandra Aleksic ◽  
Natasa Djurisic-Mladenovic ◽  
Ferenc Martinovic ◽  
...  

In manipulation and utilization of biodiesel and its mixtures, especially in the winter period, one of the most serious problems is relatively poor low-temperature flow properties. Classic methods of transesterification solve this problem, so biodiesel quality can be improved only by additives (cold flow improvers). This research examines the effect of commercial additives on the improvement of low-temperature characteristics of biodiesel. Namely, cold filter plugging point (CFPP), pour point (PP) and cloud point (CP) were tested in accordance with EN 116 and ISO 3015 standards. The influence of additives on different types of biodiesel, its different age and influence on the mixture of 5 % biodiesel and fossil diesel were examined. A better effect of additivation to "fresh" biodiesel (made using rapeseed oil), compared to "aged" biodiesel was noted. Improvement of additivation was achieved by mixing additives with an organic solvent (toluene). It was demonstrated that different types of additives are suitable for different types of biodiesel as well as mixtures of biodiesel and fossil diesel. Additives in which solvent is compatible with the type of biodiesel were found to exhibit better performance.


2007 ◽  
Vol 43 (4) ◽  
pp. 293-298 ◽  
Author(s):  
Yuping Song ◽  
Chao Qiu ◽  
Xiaohong Xu ◽  
Xisheng Fu ◽  
Tianhui Ren
Keyword(s):  

2009 ◽  
Vol 6 (1) ◽  
pp. 82-85 ◽  
Author(s):  
Haikuan Zhang ◽  
Hongyan Liu ◽  
Shujun Wang
Keyword(s):  

Author(s):  
Maria Kirgina ◽  
Ilya Bogdanov ◽  
Andrey Altynov ◽  
Nataliya Belinskaya ◽  
Alina Orlova ◽  
...  

One of the most widely used way to improve low-temperature properties of diesel fuels is the use of additives. However, a variety of additives and the effect of susceptibility make it difficult to select additive for a particular composition of diesel fuel and operating conditions. The laws of interaction between functional groups of additives and hydrocarbons of the diesel fraction have not been investigated yet. The article discusses the influence of fractional, group and structural-group composition of straight-run diesel fuels on the effectiveness of cold flow improvers. The effect of additives concentration on the effectiveness of their action is considered. It was shown that when selecting a cold flow improver for diesel fuel and determining its optimal concentration, it is necessary to take into account the optimal content of various groups of hydrocarbons in diesel fuel, at which a cold flow improver is most effective.


Author(s):  
A. Sh. Zainullina ◽  
D. K. Sibatov

The article is devoted to the study of the low temperature properties of petroleum products and the influence of depressant additives on former. The objects of the study are the summer mark diesel fuel produced by «ПетроКоммерцОйлКазахстан» and depressant additives of «AGA», «MANNOL», «FENOM», «CYCLO C-24» brands. Such physical and chemical characteristics of petroleum products as flashpoint, pour point, cloud point, cold filter plugging point and kinematic viscosity of pure diesel fuel at the presence and absence of depressor additives of brands listed above. The best performance among studied additives is shown by «MANNOL» brand additive.


2013 ◽  
Vol 110 ◽  
pp. 61-64 ◽  
Author(s):  
Pengmei Lv ◽  
Yufeng Cheng ◽  
Lingmei Yang ◽  
Zhenhong Yuan ◽  
Huiwen Li ◽  
...  

2020 ◽  
Vol 110 ◽  
pp. 103445
Author(s):  
Romana Velvarská ◽  
Aleš Vráblík ◽  
José Miguel Hidalgo-Herrador ◽  
Radek Černý

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