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Bratislava, Slovakia

Slovnaft is an oil refining company in Slovakia. The company, located in Bratislava, is a subsidiary of MOL Group. Wikipedia.


Tulik J.,Slovak University of Agriculture | Hujo L.,Slovak University of Agriculture | Stancik B.,Slovak University of Agriculture | Sevcik P.,SLOVNAFT
Journal of Central European Agriculture | Year: 2013

This paper presents the evaluation of a newly developing synthetic-based hydraulic fluid MOL Farm UTTO Synt, developed by MOL Group, Hungary. The fluid was subjected to a laboratory test by using a gear hydrostatic pump UD 25, which is used in the latest Zetor Fortera tractors. During the test, flow values were statistically evaluated and graphically displayed in the form of flow characteristics and the loss of flow efficiency. On the basis of laboratory test results, it can be concluded that the newly developing fluid meets the specified requirements and it is possible to continue in testing under operating conditions. Source


Kleinova A.,Slovak University of Technology in Bratislava | Cvengrosova Z.,Slovak University of Technology in Bratislava | Mikulec J.,SLOVNAFT | Cvengros J.,Slovak University of Technology in Bratislava
Chemical Engineering Transactions | Year: 2010

Fatty acid methyl esters (FAME) are used as alternative diesel fuel made from renewable sources. The attention is oriented to the materials that do not compete with food and feed production. Significant potential as an alternative low-cost biodiesel feedstock present used frying oils (UFO). The chemical changes of triacylglycerols which take place during frying can be so extensive that the properties of the FAME made from UFO (UFOME) should not meet all requirements of the standard EN 14 214. The key problem is FAME oligomers which lower the ester content and increase the viscosity. In this work, the results of oligomer content determination using gel permeation chromatography (GPC) and gas-liquid chromatography (GLC) are presented. Effective method for oligomer removal from UFOME is their final treatment based on UFOME distillation in vacuum film evaporator. Copyright © 2010 AIDIC Servizi S.r.l. Source


Krupcik J.,Slovak University of Technology in Bratislava | Gorovenko R.,Slovak University of Technology in Bratislava | Spanik I.,Slovak University of Technology in Bratislava | Bockova I.,SLOVNAFT | And 2 more authors.
Journal of Chromatography A | Year: 2013

One-dimensional and comprehensive two-dimensional flow modulated gas chromatography with simultaneous flame ionization and mass spectrometric detection were applied for the identification and quantification of benzene, toluene, ethyl benzene and xylenes (BTEX) as well as of all C9-C11 aromatic hydrocarbons in the low-boiling petroleum products gasoline, reformate and fluid catalytic cracking (FCC) samples. GC×GC experiments were performed on two reversed phase polarity column sets namely SLB-IL100 (25m×250μm i.d.×0.2μm df)+HP-5MS (5m×250μm i.d.×0.25μm df) and SLB-IL111 (30m×250μm i.d.×0.2μm df)+HP-5MS (5m×250μm i.d.×0.25μm df). The one-dimensional GC experiments were carried out on the same ionic liquid columns. The most powerful method is GC×GC on the SLB-111+HP-5MS column combination. Quantitative analysis of individual aromatic hydrocarbons (C6-C11) present in gasoline, reformate and fluid catalytic cracking (FCC) samples was performed by GC×GC-FID using the internal normalization method. Mass spectra obtained by GC×GC-qMSD were used for identification of the aromatic hydrocarbons in these samples. © 2013 Elsevier B.V. Source


Kosiba J.,Slovak University of Agriculture | Hujo L.,Slovak University of Agriculture | Tulik J.,Slovak University of Agriculture | Raso M.,SLOVNAFT
Advanced Materials Research | Year: 2013

This paper deals with the lifetime test of a tractor hydraulic pump. The basic indicator of hydraulic pump lifetime is flow characteristics. This paper presents the results of the performance test of ecological hydraulic fluid. These results were subjected to statistical analysis. Based on these data, it is possible to express a minimum impact of ecological hydraulic fluid on hydraulic pump lifetime. The test was carried out in cooperation between the Department of Transport and Handling (Slovak University of Agriculture in Nitra) and Slovnaft, a.s. (joint-stock company), and supported by the Scientific Grant Agency of the Ministry of Education, Science, Research and Sport of the Slovak Republic - VEGA, ref. No 1/0857/12. © (2013)Trans Tech Publications,Switzerland. Source


Thernesz A.,MOL Hungarian Oil and Gas Plc | Varga Z.,MOL Hungarian Oil and Gas Plc | Rabi I.,MOL Hungarian Oil and Gas Plc | Czaltig Z.,MOL Hungarian Oil and Gas Plc | Lorincova M.,SLOVNAFT
Clean Technologies and Environmental Policy | Year: 2010

The paper presents the results of feasibility study for increase of crude processing capacity and improves of energy efficiency of crude oil distillation units. Results introduce that boosting up the distillation capacity was solved while keeping the flexibility of units for processing different type crude oils. Analysis of heat exchanger network resulted significant reduction in fuel consumption and in CO 2 emission (93 × 10 6 GJ year -1 and 3,030 tCO 2 year -1, respectively). Modification of furnace of one of the distillation units showed 63 GJ kt -1 crude saving in energy and 4.5 tCO 2 kt -1 crude decrease in emission. © Springer-Verlag 2009. Source

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