scholarly journals Investigating the effects of depressant additives on the low temperature properties of petroleum products

2021 ◽  
pp. 53-56
Author(s):  
A. Sh. Zainullina ◽  
D. K. Sibatov
Keyword(s):  
Low Temperature ◽  
Cloud Point ◽  
Diesel Fuel ◽  
Pour Point ◽  
Kinematic Viscosity ◽  
Point Cloud ◽  
Petroleum Products ◽  
Chemical Characteristics ◽  
Cold Filter Plugging Point ◽  
Physical And Chemical

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.

scholarly journals Investigating the effects of depressant additives on the low temperature properties of petroleum products

2021 ◽  
pp. 57-60
Author(s):  
A. Sh. Zainullina ◽  
D. K. Sibatov
Keyword(s):  
Low Temperature ◽  
Cloud Point ◽  
Diesel Fuel ◽  
Pour Point ◽  
Kinematic Viscosity ◽  
Point Cloud ◽  
Petroleum Products ◽  
Chemical Characteristics ◽  
Cold Filter Plugging Point ◽  
Physical And Chemical

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.

Use of baru oil (Dipteryx alata Vog.) to produce biodiesel and study of the physical and chemical characteristics of biodiesel/petroleum diesel fuel blends

2012 ◽  
Vol 48 (1) ◽  
pp. 13-16 ◽  
Author(s):  
Antonio Carlos Ferreira Batista ◽  
Hugo de Souza Rodrigues ◽  
Nilson Roberto Pereira ◽  
Manuel Gonzalo Hernandez-Terrones ◽  
Andressa Tironi Vieira ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Chemical Characteristics ◽  
Physical And Chemical Characteristics ◽  
Fuel Blends ◽  
Physical And Chemical ◽  
Dipteryx Alata

Preparation of n-Alkylacrylate and Vinyl Acetate Copolymer and Its Influence on Low-Temperature Fluidity of Diesel Fuel

2011 ◽  
Vol 236-238 ◽  
pp. 708-714 ◽  
Author(s):  
Hong An ◽  
Shu Gang Gao ◽  
Shuang Li ◽  
Yan Xin Xie
Keyword(s):  
Molecular Weight ◽  
Low Temperature ◽  
Vinyl Acetate ◽  
Diesel Fuel ◽  
Mass Fraction ◽  
Raw Materials ◽  
Cold Filter Plugging Point ◽  
Point Depressant ◽  
Petrochemical Company ◽  
Acetate Copolymer

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.

Influence of poly (methacrylate-co-maleic anhydride) pour point depressant with various pendants on low-temperature flowability of diesel fuel

Fuel ◽  
2018 ◽  
Vol 216 ◽  
pp. 898-907 ◽  
Author(s):  
Guangwen Xu ◽  
Yuan Xue ◽  
Zhicheng Zhao ◽  
Xiang Lian ◽  
Hualin Lin ◽  
...  
Keyword(s):  
Low Temperature ◽  
Maleic Anhydride ◽  
Diesel Fuel ◽  
Pour Point ◽  
Pour Point Depressant ◽  
Point Depressant

scholarly journals Research on Physico-Chemical Properties of Diethyl Ether/Linseed Oil Blends for the Use as Fuel in Diesel Engines

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6564
Author(s):  
Krzysztof Górski ◽  
Ruslans Smigins ◽  
Rafał Longwic
Keyword(s):  
Surface Tension ◽  
Low Temperature ◽  
Diethyl Ether ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Kinematic Viscosity ◽  
Linseed Oil ◽  
Chemical Properties ◽  
Fuel Blends ◽  
Physico Chemical

Physico-chemical properties of diethyl ether/linseed oil (DEE/LO) fuel blends were empirically tested in this article for the first time. In particular, kinematic viscosity (ν), density (ρ), lower heating value (LHV), cold filter plugging point (CFPP) and surface tension (σ) were examined. For this research diethyl ether (DEE) was blended with linseed oil (LO) in volumetric ratios of 10%, 20% and 30%. Obtained results were compared with literature data of diethyl ether/rapeseed oil (DEE/RO) fuel blends get in previous research in such a way looking on differences also between oil types. It was found that DEE impacts significantly on the reduction of plant oil viscosity, density and surface tension and improve low temperature properties of tested oils. In particular, the addition of 10% DEE to LO effectively reduces its kinematic viscosity by 53% and even by 82% for the blend containing 30% DEE. Tested ether reduces density and surface tension of LO up to 6% and 25% respectively for the blends containing 30% DEE. The measurements of the CFPP showed that DEE significantly improves the low temperature properties of LO. In the case of the blend containing 30% DEE the CFPP can be lowered up to −24 °C. For this reason DEE/LO blends seem to be valuable as a fuel for diesel engines in the coldest season of the year. Moreover, DEE/LO blends have been tested in the engine research. Based on results it can be stated that the engine operated with LO results in worse performance compared with regular diesel fuel (DF). However, it was found that these disadvantages could be reduced with DEE as a component of the fuel mixture. Addition of this ether to LO improves the quality of obtained fuel blends. For this reason, the efficiency of DEE/LO blend combustion process is similar for the engine fuelled with regular diesel fuel. In this research it was confirmed that the smoke opacity reaches the highest value for the engine fuelled with plant oils. However, addition of 20% DEE reduces this emission to the value comparable for the engine operated with diesel fuel.

Predicting the Cetane Number, Yield Sooting Index, Kinematic Viscosity, and Cloud Point for Catalytically Upgraded Pyrolysis Oil Using Artificial Neural Networks

2020 ◽  
Author(s):  
Travis Kessler ◽  
Thomas Schwartz ◽  
Hsi-Wu Wong ◽  
J. Hunter Mack
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Cloud Point ◽  
Diesel Fuel ◽  
Kinematic Viscosity ◽  
Fast Pyrolysis ◽  
Cetane Number ◽  
Alternative Methods ◽  
Pyrolysis Oil ◽  
Artificial Neural

Abstract The conversion of biomass using fast pyrolysis has the potential to be significantly less expensive at scale compared to alternative methods such as fermentation and gasification. Selective upgrading of the products of fast pyrolysis through chemical catalysis produces compounds with lower oxygen content and lower acidity; however, identifying the specific catalytic pathways for producing viable fuels and fuel additives often requires a trial-and-error approach. Specifically, key properties of the compounds must be experimentally tested to evaluate the viability of the resultant compounds. The present work proposes predictive models constructed with artificial neural networks (ANNs) for cetane number (CN), yield sooting index (YSI), kinematic viscosity (KV), and cloud point (CP), with blind test set median absolute errors of 5.14 cetane units, 3.36 yield sooting index units, 0.07 millimeters squared per second, and 4.89 degrees Celsius, respectively. Furthermore, the cetane number, yield sooting index, kinematic viscosity, and cloud point were predicted for over three hundred expected products from the catalytic upgrading of pyrolysis oil. It was discovered that 130 of these compounds have predicted cetane numbers greater than 40, with four of these compounds possessing predicted yield sooting index values significantly less than that of diesel fuel and predicted viscosities and cloud points comparable to that of diesel fuel.

scholarly journals AVALIAÇÃO DO COMPORTAMENTO REOLÓGICO E PROPRIEDADES DE ESCOAMENTO A FRIO DO BIODIESEL DE SEBO BOVINO E SUAS MISTURAS COM DIESEL

2016 ◽  
Vol 8 (1) ◽  
pp. 29
Author(s):  
Luiz Antonio Pimentel Cavalcanti
Keyword(s):  
Cloud Point ◽  
Pour Point ◽  
Point Cloud

A tendência de um combustível solidificar a baixas temperaturas é verificada através das Propriedades de Escoamento a Frio (PEF). Tais propriedades no biodiesel de sebo bovino (B100-Sb) podem afetar a viabilidade comercial desse combustível, devido à composição em termos de ésteres metílicos de ácidos graxos (EMAG) ser predominantemente composta por saturados. Estudou-se o efeito de adição de triacetina sobre o melhoramento das PEF do B100-Sb e das misturas BX (B5a B50) nas frações volumétricas de 0,5, 1, 5, 10 e 20% (v/v) de triacetina dissolvida no B100-Sb, bem como o comportamento reológico desses combustíveis foram obtidos usando-se um reômetro do tipo Searle. As propriedades de escoamento a frio de tais combustíveis foram obtidas através dos Mini Pour Point/Cloud Point e CFPP testers. A adição da triacetina teve uma ação discreta quanto à diminuição do ponto de névoa, porém, atuou de forma mais efetiva sobre o ponto de fluidez desses combustíveis. Foi constatado que nas misturas BX quanto maior a proporção de B100-Sb presente na mistura, maior a redução do PF do combustível. Com relação ao B100-Sb, os melhores resultados foram obtidos com o percentual de 1,0 % de triacetina no combustível, aumentando-se tal valor percentual não houve alteração com relação aos PEF. Os B100-Sb, óleo diesel e misturas BX e misturas BX-Triacetina comportaram-se como Fluidos Newtonianos e Fluidos pseudoplásticos a 20≤ T≤ 90°C e 14 ≤ T ≤ 18°C, respectivamente. As curvas de viscosidade evidenciaram que presença da triacetina atua inibindo o crescimento e aglomeração dos cristais de EMAG.

scholarly journals Improvement of low-temperature characteristics of biodiesel by additivation

2019 ◽  
Vol 73 (2) ◽  
pp. 103-114 ◽  
Author(s):  
Ivan Tasic ◽  
Milan Tomic ◽  
Aleksandra Aleksic ◽  
Natasa Djurisic-Mladenovic ◽  
Ferenc Martinovic ◽  
...  
Keyword(s):  
Low Temperature ◽  
Pour Point ◽  
Rapeseed Oil ◽  
Winter Period ◽  
Cold Filter Plugging Point ◽  
Flow Properties ◽  
Temperature Characteristics ◽  
Cold Flow ◽  
Different Types ◽  
Biodiesel Quality

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.

Study of Co-Mn/TiO2 SCR Catalyst at Low Temperature

2015 ◽  
Vol 1102 ◽  
pp. 11-16 ◽  
Author(s):  
Hua Hu ◽  
Jun Lin Xie ◽  
De Fang ◽  
Feng He
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Chemical Characteristics ◽  
Impregnation Method ◽  
Scr Catalyst ◽  
No Conversion ◽  
Co Doping ◽  
Phase Structures ◽  
Adsorption Capacities ◽  
Physical And Chemical

The Co-Mn/TiO2 catalysts with different contents of Co were prepared by the impregnation method. Catalytic activity tests showed that the addition of Co could obviously enhance the SCR performance of Mn/TiO2 catalyst, and the NO conversion of 0.05Co-Mn/TiO2 samples could reach 94.03% at 180 °C. At the same time, with the help of XRD, BET, H2-TPR and NH3-TPD, the various physical and chemical characteristics as well as phase structures of catalysts were characterized systematically. According to the results, the formations of crystalline CoMn2O4, Mn3O4 and amorphous Mn2O3 were detected. Furthermore, Co doping could reduce the reduction temperatures of catalysts and enhance the adsorption capacities of NH3, resulting in the excellent SCR performance at low temperature.

Antagonism between cloud point and cold filter plugging point depressants in a diesel fuel

Fuel ◽  
1995 ◽  
Vol 74 (12) ◽  
pp. 1830-1833 ◽  
Author(s):  
Jean Marie Létoffé ◽  
Pierre Claudy ◽  
Despina Vassilakis ◽  
Bernard Damin
Keyword(s):  
Cloud Point ◽  
Diesel Fuel ◽  
Cold Filter Plugging Point
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