scholarly journals Partial Hydrogenation of Calophyllum Inophyllum Methyl Esters to Increase the Oxidation Stability

2015 ◽  
Vol 47 (5) ◽  
pp. 508-521 ◽  
Author(s):  
Joelianingsih Joelianingsih ◽  
◽  
P. Putra ◽  
A.W. Hidayat ◽  
R. Fajar ◽  
...  
Keyword(s):  
Methyl Esters ◽  
Oxidation Stability ◽  
Partial Hydrogenation ◽  
Calophyllum Inophyllum

scholarly journals Low-temperature and atmospheric pressure plasma for palm biodiesel hydrogenation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Grittima Kongprawes ◽  
Doonyapong Wongsawaeng ◽  
Kanokwan Ngaosuwan ◽  
Worapon Kiatkittipong ◽  
Suttichai Assabumrungrat
Keyword(s):  
Fatty Acid ◽  
Cloud Point ◽  
Atmospheric Pressure ◽  
Oxidation Stability ◽  
Acid Methyl Ester ◽  
Energy Utilization ◽  
Superior Performance ◽  
Partial Hydrogenation ◽  
Dbd Plasma ◽  
Plasma Hydrogenation

AbstractPartially hydrogenated fatty acid methyl ester (H-FAME) is conventionally produced through partial hydrogenation under high pressure and elevated temperature in the presence of a catalyst. Herein, a novel green, catalyst-free, non-thermal and atmospheric pressure dielectric barrier discharge (DBD) plasma was employed instead of a conventional method to hydrogenate palm FAME. H-FAME became more saturated with the conversion of C18:2 and C18:3 of 47.4 and 100%, respectively, at 100 W input power, 1 mm gas-filled gap size and 80% H2 in the mixed gas at room temperature for 5 h, causing a reduction of the iodine value from 50.2 to 43.5. Oxidation stability increased from 12.8 to 20 h while a cloud point changed from 13.5 to 16 °C. Interestingly, DBD plasma hydrogenation resulted in no trans-fatty acid formation which provided a positive effect on the cloud point. This green DBD plasma system showed a superior performance to a conventional catalytic reaction. It is an alternative method that is safe from explosion due to the mild operating condition, as well as being highly environmentally friendly by reducing waste and energy utilization from the regeneration process required for a catalytic process. This novel green plasma hydrogenation technique could also be applied to other liquid-based processes.

Improvement of the tribological behaviour of palm biodiesel via partial hydrogenation of unsaturated fatty acid methyl esters

Wear ◽  
2019 ◽  
Vol 426-427 ◽  
pp. 813-818 ◽  
Author(s):  
E. Sukjit ◽  
M. Tongroon ◽  
N. Chollacoop ◽  
Y. Yoshimura ◽  
P. Poapongsakorn ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Unsaturated Fatty Acid ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
Partial Hydrogenation ◽  
Tribological Behaviour ◽  
Acid Methyl

POSSIBILITIES OF USING CAMELINA SATIVA OIL FOR PRODUCING BIODIESEL FUEL

Transport ◽  
2012 ◽  
Vol 27 (1) ◽  
pp. 60-66 ◽  
Author(s):  
Ernestas Zaleckas ◽  
Violeta Makarevičienė ◽  
Eglė Sendžikienė
Keyword(s):  
Diesel Engines ◽  
Methyl Esters ◽  
Oxidation Stability ◽  
Quality Parameters ◽  
Camelina Sativa ◽  
Biodiesel Fuel ◽  
Optimal Dosage ◽  
The European Union ◽  
Oilseed Crops ◽  
Alternative Feedstocks

Biofuels for diesel engines are produced mainly from rapeseed oil in Lithuania and the Member States of the European Union. In order to minimise an adverse impact of biodiesel fuel on the food sector, it is necessary to look for alternative feedstocks for producing biodiesel fuel including the potential utilisation of the new kinds of oilseed crops and various fatty waste. Camelina (Camelina sativa) could be one of the kinds of such oilseed crops, and therefore the physical and chemical parameters of Camelina sativa oil and biodiesel fuel produced from this oil were determined and the conformity of quality parameters with the requirements of biofuel standard was evaluated. It was found that fatty acid methyl esters made from Camelina sativa oil had a high iodine value (164.6÷169.6 g I2 / 100 g oil), and therefore could be used as fuel for diesel engines only in the mixtures with methyl esters produced from animal fat or used for frying oil. It has been established that similar mixtures can contain 50÷60% of Camelina sativa oil methyl esters. The possibilities of increasing oxidation stability as well as improving the cold flow properties of ester mixtures were investigated. The most effective antioxidant – Ionol (optimal dosage of 500 ppm) and the most efficient depressants Wintron XC-30 (optimal dosage – 1500 ppm) and Infineum R-442 (optimal dosage – 1200 ppm) were selected.

scholarly journals PROPERTIES OF MULTICOMPONENT BIOFUEL BLENDS, CONTAINING RAPESEED OIL BUTYL ESTERS, BIOBUTANOL AND FOSSIL DIESEL FUEL

2014 ◽  
Vol 46 (1) ◽  
pp. 14-22
Author(s):  
Irina Kazanceva ◽  
Eglė Sendžikienė ◽  
Milda Gumbytė ◽  
Kiril Kazancev
Keyword(s):  
Diesel Fuel ◽  
Rapeseed Oil ◽  
Methyl Esters ◽  
Oxidation Stability ◽  
Calorific Value ◽  
Flow Properties ◽  
Copper Strip ◽  
Cold Flow ◽  
Butyl Esters ◽  
Partial Glycerides

Chemical and physical properties (density, kinematic viscosity, flash point, copper strip corrosion, calorific value) of multicomponent biofuel blends, containing rapeseed oil butyl or methyl esters, biobutanol and fossil diesel fuel are discussed in this paper. Ester, water and partial glycerides contents were determinated in multicomponent biofuel blends. These properties were compared with the same properties of pure biodiesel (rapeseed oil butyl and methyl esters) and pure diesel fuel. As there are no standards for blends fuel, containing more than 7  of biocomponents, that is why, density and viscosity were evaluated according standards EN 14214 and EN 590.It is determined that the addition of butanol and rapeseed oil butyl esters should improve the cold flow properties, such as cloud point and cold filter plugging point.As rapeseed oil butyl esters were produced from high acidity rapeseed oil (4%), much attention was deviated for oxidation stability and acidity of pure rapeseed oil butylesters and it blends with butanol and diesel fuel.

scholarly journals Hydrotreated Vegetable Oil as a Fuel from Waste Materials

Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 337 ◽  
Author(s):  
Petr Zeman ◽  
Vladimír Hönig ◽  
Martin Kotek ◽  
Jan Táborský ◽  
Michal Obergruber ◽  
...  
Keyword(s):  
Vegetable Oil ◽  
Fossil Fuels ◽  
Methyl Esters ◽  
Oxidation Stability ◽  
Modern Society ◽  
Waste Materials ◽  
Cold Filter Plugging Point ◽  
Fuel Blend ◽  
Winter Time ◽  
Cold Starts

Biofuels have become an integral part of everyday life in modern society. Bioethanol and fatty acid methyl esters are a common part of both the production of gasoline and diesel fuels. Also, pressure on replacing fossil fuels with bio-components is constantly growing. Waste vegetable fats can replace biodiesel. Hydrotreated vegetable oil (HVO) seems to be a better alternative. This fuel has a higher oxidation stability for storage purposes, a lower temperature of loss of filterability for the winter time, a lower boiling point for cold starts, and more. Viscosity, density, cold filter plugging point of fuel blend, and flash point have been measured to confirm that a fuel from HVO is so close to a fuel standard that it is possible to use it in engines without modification. The objective of this article is to show the properties of different fuels with and without HVO admixtures and to prove the suitability of using HVO compared to FAME. HVO can also be prepared from waste materials, and no major modifications of existing refinery facilities are required. No technology in either investment or engine adaptation of fuel oils is needed in fuel processing.

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