Category Archives: Year 2015

Demonstration facility for underground coal gasification

Jerzy ŚWIĄDROWSKI*, Piotr MOCEK, Eugeniusz JĘDRYSIK, Krzysztof STAŃCZYK, Joanna KRZEMIEŃ, Piotr KRAWCZYK, Jarosław CHEĆKO – Central Mining Institute (GIG), Katowice, Poland Please cite as: CHEMIK 2015, 69, 12, 815–826 Gasification is a group of multidirectional thermal and chemical transitions occurring at increased temperature between coal organic substance and gasifying agent, i.e. usually air, oxygen, steam or mixtures thereof. Depending on the process conditions, gasifying agent and coal properties, gas product is obtained with main components: hydrogen, carbon...
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Hydrogel alkaline electrolytes for Ni-MH batteries

Monika Osińska-Broniarz*, Rafał Mańczak, Agnieszka Sierczyńska, Maciej Kopczyk – Institute of Non-Ferrous Metals, Division in Poznań, Central Laboratory of Batteries and Cells, Poznań, Poland Please cite as: CHEMIK 2015, 69, 12, 852–861 Several years ago chemical power sources supplied power exclusively with application of liquid electrolytes that have high ionic conductivity, thus allowing quick ion migration between opposite side electrodes, which enables obtaining large amount of electricity that can be given or stored in chemical power source...
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Coal as a chemical feedstock

Andrzej Mianowski* – Department of Inorganic, Analytical Chemistry and Electrochemistry,Faculty of Chemistry, Silesian University of Technology, Gliwice, Poland Please cite as: CHEMIK 2015, 69, 12, 805–814 When we try to approach the problem briefly: “coal for chemistry” we immediately recall known relation – both hard coal and brown coal are mainly power carriers, and to much smaller extents feedstock to be used in chemistry. Such an approach makes it difficult to place coking industry in one branch...
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One side self-adhesives tapes based on silicone pressure-sensitive adhesives – selections of the best compositions

Adrian Krzysztof ANTOSIK*, Paulina BEDNARCZYK, Zbigniew CZECH - Institute of Organic ChemicalTechnology, West Pomeranian University of Technology in Szczecin, Poland Please cite as: CHEMIK 2015, 69, 12, 862–867 Pressure-sensitive adhesive (PSA) is a class of adhesive material that adheres to a substrate under light pressure and can be removed cleanly, on demand, without leaving residues on the substrate. They can be defined as a viscoelastic material, which in a solvent free state remains permanently tacky at room...
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Kinetic aspects of coal gasification with CO2 as a gasifying agent

Tomasz Radko – Institute for Chemical Processing of Coal, Zabrze, Poland; Tomasz Siudyga* – Faculty of Chemistry, Silesian University of Technology, Gliwice, Poland Please cite as: CHEMIK 2015, 69, 12, 840–851 Coals were basic raw materials providing the initial development of energy and chemical technologies. Coal, gradually replaced by crude oil and natural gas, practically lost its position as a chemical feedstock. In energy production coals are regarded as a inefficient fuel and responsible for degradation of...
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Diesel fuel degradation during storage proces

Joanna CZARNOCKA*, Małgorzata ODZIEMKOWSKA – Automotive Industry Institute, Warsaw,Poland Please cite as: CHEMIK 2015, 69, 11, 771–776 Assessment of the quality of engine fuels at each distribution andstorage stage is vital for an appropriate use of transport means andenvironmental protection. As a result of various factors, stored fuelundergoes degradation process, which results in deterioration of itsquality. Plenty of different theories describe the mechanism of oxidationof petroleum products. One of them was formulated by Backstrom [1].It assumes that...
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Biological and chemical studies on soil contaminated with Persistent Organic Pollutants (POP)

Jolanta TUREK–SZYTOW* – Laboratory od Environmental Biotechnology, Biotechnology Centre,Silesian University of Technology, Gliwice, Poland Please cite as: CHEMIK 2015, 69, 11, 777–782 The Centre for Biotechnology of the Silesian University ofTechnology conducts research project FILOMATA with studentsof the secondary school. The funding was obtained under theprogramme of the Minister of Science and Higher Education“Universities of Young Inventors”.The studies have shown stimulating effect of calcium peroxide(CaO2) on change of physicochemical and biological parameters ofsoil contaminated with used engine...
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Changes of selected fuel parameters in oxidation processes

Paweł BUKREJEWSKI*, Marta SKOLNIAK, Dorota WARDZIŃSKA – Oil Products and BiofuelsLaboratory, Automotive Industry Institute, Warsaw, Poland Please cite as: CHEMIK 2015, 69, 11, 759–770 Fuels should be of high quality and stability. In order to ensurean adequate fuel quality, the legal regulations resulting from theprovisions of the Directive 98/70/EC of the European Parliament andof the Council of 13th October 1998 relating to the quality of gasolineand diesel fuels were introduced. Poland, like other EU MemberStates, introduced a...
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Development prospects of biorefinery technologies

Marlena OWCZUK*, Magdalena ROGULSKA, Dorota BOGUMIŁ – Automotive Industry Institute, Warsaw, Poland; Krzysztof BIERNAT – Automotive Industry Institute, Warsaw, Poland; Institute for Ecology and Bioethics of Cardinal Stefan Wyszynski University, Warsaw, Poland Please cite as: CHEMIK 2015, 69, 11, 749–758 One of the priorities of the European Union is to strengthen the use of raw materials of biological origin in various industrial sectors, aimed at growth and economic recovery of countries [1]. For this purpose different kinds...
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Co-operation of liquid manure and the PRP Fix preparation in shaping of plant crop volume and quality

Ewa Możdżer, Edward Krzywy* – Department of Soil Science, Meadow Cultivation and Environmental Chemistry, West Pomeranian University of Technology, Szczecin, Poland Please cite as: CHEMIK 2015, 69, 10, 698–705 The liquid manure produced in large volume and nutrients included in it point to the possibility of its use for fertilization purposes. According to the legal regulations in force the liquid manure cannot be introduced into soils during the period from the beginning of November till the end...
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