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High-sulfur asphaltites of Argentina
Solid Fuel Chemistry, 2007The results of advanced study of the chemical nature of asphaltites from Rafaelita and Toribia fields, as well as the composition and structural features of their malthene, asphaltene-carbene, and carboid components are presented. It was found that the structural units in the molecules of isolated compounds are primarily based on fused tetra-and ...
V. V. Savel’ev +4 more
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Asphaltites: Composition and Conversion
1995Turkey has insignificant reserves of crude oil and natural gas. Consequently, the amount of foreign currency spent on importation of petroleum and electricity is equivalent to the total exportation from the country. The increasing trend in crude oil prices, is an important threat to the industrialisation of Turkey.
Y. Yurum, E. Ekinci
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Minacar asphaltite: an asphaltite from Argentina
Fuel, 1972Abstract Minacar asphaltite, an asphaltic pyrobitumen or fossilized asphalt, has interesting characteristics. Its provenance, physical and chemical properties, analyses, ash characteristics, solvent extraction, carbonization products, and possibilities for improving the coke made from it are outlined.
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Thermal liquefaction of natural asphaltites
Solid Fuel Chemistry, 2007Thermal transformations of high-sulfur asphaltites of Argentina were studied over a wide range of their heat treatment conditions: the final heating temperature from 350 to 600°C, the nature of the solvent used (water, deacon, tetragon, straight-run petroleum diesel distillates, the process mode (batch or flow), and the presence of a catalyst.
V. V. Savel’ev +4 more
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CHROMIUM AND THALLIUM IN TURKISH ASPHALTITE SAMPLE
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2017Asphaltite derives from petroleum origin solid fossil fuel [1]. It contains valuable elements such as chromium, thallium molybdenum, uranium etc. Chromium and thallium are very important elements both environmental and health. Chromium has an important role in the metabolism. It keeps the blood sugar level in balance.
Kavak, Orhan +3 more
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Rheological Properties of Asphaltite−Water Slurries
Energy & Fuels, 2006In this study, the rheological characteristics of asphaltite−water slurries (AWSs) were investigated with respect to some of the most important parameters in the preparation of slurries. The effects of pulp density, chemical addition, pulp pH, and particle size on the rheological behavior and viscosity of AWSs were studied. The role of demineralization
HİÇYILMAZ, Cahit +2 more
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A kinetic study of Meyers' desulphurization of asphaltite
Fuel, 1989Abstract Cizre asphaltite was leached in acidic ferric chloride solutions. The parameters affecting conversion of pyrite disseminated in asphaltite to sulphate were investigated and a mathematical model having these parameters was derived to define the leaching process.
ONGANER, Yavuz, ALKAN, M, KOCAKERIM, MM
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Importance of Asphaltite Deposits in Southeastern Anatolia
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2006Native energy sources of Turkey are quite limited, and the country is heavily dependent on the import of primary energy from abroad. The demand for electrical energy has increased very rapidly in Turkey due to the ongoing industrialization process and high population growth. Energy consumption in Turkey has continually increased over the past years and
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Demineralization of asphaltite using free jet flotation
Asia-Pacific Journal of Chemical Engineering, 2016AbstractThe mineral matter and sulfur, which are present in varying amounts in asphaltites, are a major problem in the utilization of asphaltites as a fuel. Demineralization studies were carried out on an asphaltite sample containing 43.69% ash, 35.9% volatile matter, 19.7% fixed carbon, and 4.64% total sulfur.
Ali Güney +3 more
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Producing adsorbents from nitrated asphaltites
Chemistry and Technology of Fuels and Oils, 2012Carbon adsorbents with mechanical strengths of 90-93% and a micropore volume of 0.16-0.3 cm3/cm3 have been obtained from nitrated asphaltites by the existing industrial technology. Compared to industrial carbon with the trademark KAD-iodine, medium-charred specimens are highly selective in extracting gold and silver from multicomponent polymetal ...
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