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The Ombilin Coal Mine (formerly PT Tambang Batubara Ombilin (TBO)) is a coal mine near Sawahlunto, West Sumatra, Indonesia.It is located in a narrow valley along the Bukit Barisan mountains, among the Polan, Pari, and Mato hills, approximately 70 kilometres (43 mi) northeast of Padang.
Batubara Regency is a regency on North Sumatra's eastern shoreline, with the town of Limapuluh as the seat of its administration. It was carved out from the seven most westerly coastal districts of Asahan Regency with effect from 15 June 2007.
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams.Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. [1]
Tanjung Bara itself has a fair tidal range from 4.4 to 2.8 meters (14.4–9.2 feet). The channel leading to the port has a higher draft allowed of 25 meters (82 feet). While the stockpile on the jetty can store up to 1.25 metric tons (1.38 short tons) of coal, each of the quadrant type loaders is capable of loading at a rate of 4,200 metric ...
Coal is delivered by highway truck, rail, barge, collier ship or coal slurry pipeline.Generating stations are sometimes built next to a mine; especially one mining coal, such as lignite, which is not valuable enough to transport long-distance; so may receive coal by conveyor belt or massive diesel-electric-drive trucks.
Haul trucks at the Batu Hijau mine. Batu Hijau is an open-pit mine. Ore is removed from the mining face using P&H 4100 electric shovels and loaded into Caterpillar 793C haul trucks (pictured). Each haul truck can move a payload 220 t (240 short tons) of ore. The trucks haul ore from the shovel to primary crushers.
Lignite (derived from Latin lignum meaning 'wood'), often referred to as brown coal, [1] is a soft, brown, combustible sedimentary rock formed from naturally compressed peat.It has a carbon content around 25–35% [1] [2] and is considered the lowest rank of coal due to its relatively low heat content.
Ember was originally founded in 2008 as Sandbag, focussing on the European Union's Emission Trading Scheme, allowing its members to campaign to reduce the number of permits in circulation and to purchase permits and cancel them.