Faculty: Faculty of Chemical and Food Technology,
Department/Institute: Institute of Organic Chemistry, Catalysis and Petrochemistry
Contact person: Assoc. Prof. Ing. Pavol Daučík, PhD
Contact: +421 2 5932 5406
e-mail: pavol.daucik@stuba.sk
web page: http://www.chtf.stuba.sk/ktrp/indexe.php
Description:
Research on fuels is aimed at preparation of nitrate additives, which improve combustion properties (cetane number) of diesel fuels.
To improve of utility properties and analysis of composition is basic orientation of reseach in lubrication field. Antioxidatns and polymeric additives are investigate to improve qualitative properties of lubricants (reology, stability, corrosion)
In the field of secundary resources and wastes the laboratory contribute by work on application of used polymers, crumb rubber and acid sludges to asphalt composition. At the present time the laboratory is specialized to devulcanization of crumb rubber for purpuse of pripering a modified asphalt of high quality. Research of acid sludges processing is aimed at neutralisation and extraction of acid sludge and to reprocessing of the acid sludge into bituminous material. Neutralization of acid sludge (elimination of corrosive properties) is inevitable in the most cases of manipulation with them. The conversion of acid sludge into bituminous material is simple, but this material with this use property is not suitable for independent utilization. So we suggest to use the treated sulphonated wastes as additives during devulcanization of crumb rubber in asphalts so that, the final mixture with asphalts have suitable use property. Catalytic action of acid sludges as the component in asfalt In will bring benefints in the process of crumb rubber devulkanization. In this field is possible to expand devucanization process with new chemical agents and their combinations online in asphalt matrix. Aplication of metal oxides, elements in nano-material forms in conjunction with waste crumb rubber and with organic acides (fatty acids and /or sulfonated petroleum waste – acid sludges) is a new perspective way. Modern technologies are by this way link together with dangerous waste disposal.
We apply analytical methods centered on fuels, feedstocks and heavy products composition. The labotory has Besides gas chromatography also liquid chromatography, mass spectrometry (GC-MS) ldifferential scannig calorimetry and other spectral methods (UV, IR, NMR), are among analytical methods.
Projects:
APVV-20-036705 The use of waste polymer and oil materials in production of bitumen, (2006 –2008)
Publications:
Michalica P.,Daučík P.,Zanzotto L.:Compositional Changes Occurring During the Oxidative Aging of Two Selected Asphalts from Diferent Sources, Petroleum and Coal 50 (2), 1-10, 2008. ISSN 1337-7027
Daučík P., Višňovský J., Ambro J., Hájeková E.: Temperature Dependence of the Viscosity of Hydrocarbon Mixtures. Acta Chimica Slovaca, Vol. I, 2008, 43-57
Hudec P., Horňáček M., Smiešková A., Daučík P.: Chemical Recycling of Waste Hydrocarbons in Catalytic Cracing., Petroleum and Coal 51 (1), 51-58, 2009. ISSN 1337-7027
Daučík Pavol, Hadvinová Marcela, Višňovský Jozef
METHODS FOR DETERMINATION OF AFFINITY BETWEEN AGGREGATE AND BITUMEN, 45th International Petroleum Conference, June 13, 2011, Bratislava, Slovak Republic
Pavol Daučík, Marcela Hadvinová, Jozef Višňovský, Temperature Dependence of the Dynamic Viscosity of Asphalt - Polymer Mixtures, Petroleum and Coal 2011 53 (4) 238-243,2011 ISSN 1337-727
Patent application:
PP50018-2013 The additives impoving of cetane number of diesel and biodiesel fuels
