Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Economic evaluation of Bursa-Orhaneli Lignite coalfield

Inaner H., Nakoman E.

Polish Geological Institute Special Papers

2002

Vol. 7

103-108

Bursa-Orhaneli lignite coalfield is located in the North-West of Turkey. This coalfield has three sectors: Burmu, Çivili, and Sagirlar, having similar stratigraphic sequences in the northwest of Bursa Province. The mined coal seam is Miocene of age, and its thickness varies between 1.10-14.50 m. The pre-Neogene rocks in the area are made up of Palaeozoic aged metamorphic schists and marbles, and Upper Cretaceous aged ophiolites. The Neogene formations of detrital rocks with basal conglomerates, coal bearing marl and tuffites are found at the base, and volcanic basalt tuffs and andesite lava flows, at the top. The post-Neogene sediments are Pleistocene aged gravels and Holocene alluvium.The deposit has been worked as an open-pit mine in the Burmu and Sagirlar sectors and is going to be worked by underground mining methods in the near future. The chemical analysis have shown that the percentage of water is 22.66-27.30%, ash 24.57-44.39%, volatile matter 18.52-29.44%, fixed carbon 23.87-29.52%, and total sulphur 1.84-2.64% in the original coal, and its calorific value is 2010-3032 kcal/kg, whereas the air dried coal is composed of 5.51-10.41% water, 26.99-54.18% ash, 21.83-35.49% volatile matter, 28.10-36.03% fixed carbon, and 2.42-3.06% total sulphur, with calorific value of 2483-3938 kcal/kg. The proven and workable lignite reserves are 60,877,079 and 47,308,406 tonnes respectively. Stripping and production operations are made by a dragline, excavators and trucks. Mined coal is used both in domestic heating and the Orhaneli thermic power plant, which has a capacity of 1x210 MW.

Total sulphur distributions of Turkish lignite deposits

Inaner H., Nakoman E.

Zeszyty Naukowe. Górnictwo / Politechnika Śląska

1999

z. 243

63-72

Turkey has about 8.4 Gt lignite reserves of which 3.9 Gt are exploitable. The majority of Turkish lignite deposits are worked in open-pit mines, but there are also some undergraund operations. Most of the known lignite deposits in Turkey are of low calorific value and have high contents of ash, moisture and total sulphur. Although Canakkale-Can lignites have a higher total sulphur content, They are being mined Generally, total sulphur content varies between 0.93% and 4.25% in important lignite deposits in Turkey. Almost 80% of the total reserves have caloric values below 2500 kcal/kg. The lignites having low calorific values aregenerally consumed vy power plants. The lignites having relatively high calorific values are exploited for household and industry in the contry. In tis article, lignite reserves which are used as fuel in thermic power plants have been examined.

Turcja dysponuje zasobami węgla brunatnego wielkości ok. 8,3 Gt, z czego zasoby wydobywane stanwią 3,9 Gt. Wiekszość złóż eksploatowana jest odkrywkowo, niektóre sposobem podziemnym. Znaczna część rozpoznanych złóż zawiera węgiel o niskiej wartości opałowej i wysokiej zawartości popiołu, wilgoci i siarki całkowitej. Chociaż węgiel w złożu Can w prowincji Canakkale zawiera podwyższoną zawartość siarki całkowitej, jest on eksploatowany. Generalnie zawartość siarki całkowitej w głównych złożach tureckich waha się od 0,93% do 4,25%. Prawie 80% ogółu zasobów stanowi węgiel o wartości opałowej poniżej 2500 kcal/kg. Węgiel brunatny o niskiej wartości opałowej jest powszechnie używany przez elektrownie. Węgiel o względnie wysokiej wartości opałowej jest eksloatowany w kraju na potrzeby gospodarstw domowych i przemysłu. Artykuł traktuje o zasobach węgla, stosowanego jako paliwo w cieplnych elektrowniach.