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Coal includes
all coal, both primary (including hard coal and lignite) and derived
fuels (including patent, coke oven coke, gas coke, BKB, coke oven gas,
and blast furnace gas). Peat is also included in this category.
For
more information on a coal type, please see the following list:
Coke oven coke is the solid product obtained from the carbonisation of coal, principally coking coal, at high temperature. It is low in moisture content and volatile matter. Also included are semi-coke, a solid product obtained from the carbonisation of coal at a low temperature, lignite coke and semi-coke made from lignite. The heading other energy sector represents consumption at the coking plants themselves. Consumption in the iron and steel industry does not include coke converted into blast furnace gas. To obtain the total consumption of coke oven coke in the iron and steel industry, the quantities converted into blast furnace gas have to be added (these are shown under transformation - for gases). Gas coke is a by-product of hard coal used for the production of town gas in gas works. Gas coke is used for heating purposes. Other energy sector data represent consumption of gas coke at gas works. Coking Coal Coking coal refers to coal with a quality that allows the production of a coke suitable to support a blast furnace charge. Its gross calorific value is greater than 23 865 kJ/kg (5 700 kcal/kg) on an ash-free but moist basis. Lignite Lignite is a non-agglomerating coal with a gross calorific value of less than 17 435 kJ/kg (4165 kcal/kg), and greater than 31 per cent volatile matter on a dry mineral matter free basis. Patent Fuel and Brown Coal/Peat Briquettes (BKB) Patent fuel is a composition fuel manufactured from coal fines with the addition of a binding agent (pitch). The amount of patent fuel produced is, therefore, slightly higher than the actual amount of coal consumed in the transformation process. Consumption of patent fuels during the patent fuel manufacturing process is shown under other energy sector. BKB are composition fuels manufactured from brown coal, produced by briquetting under high pressure. These figures include peat briquettes, dried lignite, fines and dust and brown coal breeze. The heading other energy sector includes consumption by briquetting plants. Peat Combustible soft, porous or compressed, fossil sedimentary deposit of plant origin with high water content (up to 90 per cent in the raw state), easily cut, of light to dark brown colour. Other Bituminous Coal and Anthracite Steam coal is coal used for steam raising and space heating purposes and includes all anthracite coals and bituminous coals not included under coking coal. Its gross calorific value is greater than 23 865 kJ/kg (5 700 kcal/kg), but usually lower than that of coking coal. Sub-bituminous Coal Non-agglomerating coals with a gross calorific value between 17 435 kJ/kg (4 165 kcal/kg) and 23 865 kJ/kg (5 700 kcal/kg) containing more than 31 per cent volatile matter on a dry mineral matter free basis.
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