Results 61 to 70 of about 529 (96)
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Extraction of Asphaltite With Toluene
Solid Fuel Chemistry, 2018The extraction of asphaltite with toluene was carried out at 100–300°C. With the use of X-ray fluorescence analysis, the effect of the extractant on the redistribution of organic substances between the initial and extracted asphaltites was found.
Eldar Movsumzade +2 more
exaly +2 more sources
Rheological Properties of Asphaltite−Water Slurries
Energy & Fuels, 2006 In 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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Effect of Molten Caustic Leaching on Demineralization and Desulfurization of Asphaltite
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2008 Abstract Molten caustic leaching process is effective in reducing significant amounts of ash-forming minerals, pyritic sulfur, and organic sulfur from solid fossil fuels. The effect of leaching asphaltite samples from Seguruk and Harbul collieries of Sirnak and Silopi asphaltite fields (situated in the Southeast Anatolia region of Turkey) with molten ...
Hamamci, C. +4 more
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CHROMIUM AND THALLIUM IN TURKISH ASPHALTITE SAMPLE
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2017 Asphaltite 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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A kinetic investigation on the pyrolysis of Seguruk asphaltite
Journal of Thermal Analysis and Calorimetry, 2008 The pyrolysis of Seguruk asphaltite has been investigated using thermogravimetric analysis at atmospheric pressure between 293 to 1223 K at different linear heating rates of 5, 10 and 20 K min−1 under nitrogen as ambient gas. There was a two-stage thermal decomposition. Thermal decomposition started around 630 K for stage 1 for the slowest heating rate.
Tonbul, Y. +3 more
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Mineralogy and Elemental Contents of the Sirnak Asphaltite, Southeast Turkey
Energy Sources Part A Recovery, Utilization, and Environmental Effects, 2002This study focuses on mineralogy and elemental contents of 7 Sirnak asphaltite samples of which 6 were collected from Avgamasya mines and 1 from Segurik mine in the southeastern part of Turkey. The samples were studied using proximate analysis, X-ray powder diffraction (XRD), inductively coupled plasma-atomic emission spectrometry (ICP-AES ...
Ali Ihsan Karayiğit, Xavier Querol
exaly +3 more sources
Selective oil agglomeration in Sırnak asphaltite beneficiation
Fuel, 2004 Abstract In this study, the possibility of cleaning Sirnak asphaltite by the agglomeration method was investigated. Experimental studies were conducted on the asphaltite sample with ash, sulphur, volatile matter and fixed carbon contents of 44.8, 6.0, 38.0, and 17.2 wt%, respectively. For this purpose, laboratory tests were carried out to investigate
Abakay, H, Ayhan, FD, Kahraman, F
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Pyrolysis Kinetics of Asphaltite by Thermal Analysis
Petroleum Science and Technology, 2006Abstract Pyrolysis properties and kinetic analysis of asphaltite were investigated by means of thermogravimetry (TG) and derivative thermogravimetry (DTG). Thermal experiments were carried out from ambient temperatures to 1000°C in nitrogen atmosphere at different heating rates.
exaly +2 more sources
Fast Pyrolysis of Şırnak Asphaltite (Turkey) and Characterization of Pyrolysis Products
Energy Sources, Part A: Recovery, Utilization and Environmental Effects, 2008Abstract Fast pyrolysis of Sirnak Asphaltite (SASP) was investigated to determine yield and distribution of volatile products at different temperatures. A special sampling technique was used for collecting organic products formed at different time intervals and pyrolysis temperatures.
M Yuksel, M Saglam
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Fuel Processing Technology, 2006 Processing of Sirnak Asphaltite sample by gravity and flotation concentration methods was investigated to decrease its ash content. Finely disseminated inorganic constituents of asphaltite revealed the difficulty of operation.
Cahit Hiçyilmaz, N Emre Altun
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