Results 61 to 70 of about 120 (105)

Salt Flotation of Şirnak Asphaltite

Energy Sources, Part A: Recovery, Utilization and Environmental Effects, 2011
Abstract The aim of this study was to investigate the possibility of cleaning Sirnak asphaltite by salt flotation. For this purpose, experimental studies were conducted on a Sirnak asphaltite sample containing high ash and sulfur content. The effects of salt amount, pH, frother amount, and impeller speed on the flotation were investigated separately in
exaly   +2 more sources

Importance of Asphaltite Deposits in Southeastern Anatolia

Energy Sources, Part A: Recovery, Utilization and Environmental Effects, 2006
Native 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
exaly   +2 more sources

BRIQUETTING OF FINE SIZE ASPHALTITE WITHOUT BINDER

Mineral Processing and Extractive Metallurgy Review, 2005
ABSTRACT In this study, the effects of particle size, moisture, briquetting pressure, and preheating temperature were investigated on briquetting without binder of Sirnak Asphaltite, having a particle size of—20 mm, 46.22% ash, 5.83% total sulphur content, and 4900 kcal/kg calorific value.
Firat Burat, Mustafa Ozer, G Onal
exaly   +3 more sources

Pyrolysis Kinetics of Asphaltite by Thermal Analysis

Petroleum Science and Technology, 2006
Abstract 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

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 ...
Abdurrahman Saydut
exaly   +3 more sources

Support design of underground openings in an asphaltite mine

Tunnelling and Underground Space Technology, 2013
Abstract A detailed study to design support systems for underground openings was carried out in this paper. Asphaltite, an energy source for thermal power plants, will be produced from the Uckardesler Asphaltite Vein in southwestern Turkey. This mine will be the first application of underground asphaltite production in the world.
exaly   +2 more sources

Combustion Characteristics of Asphaltites

Energy Sources, 2005
In this research, a laboratory work is performed to observe the combustion characteristics and reaction kinetic's of Silopi region asphaltites. A total of twelve experiments were performed with two different mesh sizes and under three different pressures.
MUSTAFA VERSAN KOK, A. SUAT BAGCI, EZGI CEYLAN, OKE OZKILIÇ   +3 more
openaire   +1 more source

A kinetic study of Meyers' desulphurization of asphaltite

Fuel, 1989
Abstract 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
openaire   +2 more sources

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, Aydın, Fırat, Fidan, Celal, Aydın, Işıl   +3 more
openaire   +1 more source

Minacar asphaltite: an asphaltite from Argentina

Fuel, 1972
Abstract 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.
openaire   +1 more source