Specifically, thermal coal is used in power plants that produce steam for electricity generation. Steam powered trains were also powered by thermal coal. Metallurgical coal is referred to as coking coal and is used in the production of coke.
Why is coking coal used in steel production?
Coking coal is a key raw material in steel production. As iron occurs only as iron oxides in the earth’s crust, the ores must be converted, or ‘reduced’, using carbon. The primary source of this carbon is coking coal. … Coke reduces iron ore to molten iron saturated with carbon, called hot metal.
Where do we get coking coal from?
Primary steelmaking companies often have a division that produces coal for coking, to ensure a stable and low-cost supply. Metallurgical coal comes mainly from Canada, the United States, and Australia, with Australia exporting 58% of seaborne trade, mostly going to China.
Where is coking coal mined in Australia?
The Otway Basin (Victoria), the Murray Basin (Victoria and South Australia), the North St Vincents Basin (South Australia) and the Eucla Basin (Western Australia) also contain significant brown coal resources. Minor resources occur in Tasmania’s Longford Basin.
What is coking coal Upsc?
Coking coal, also known as metallurgical coal, is used to create coke, one of the key irreplaceable inputs for the production of steel. There are many varieties of coal in the world, ranging from brown coal or lignite to anthracite. … Coke is produced by heating coking coals in a coke oven in a reducing atmosphere.
How is metallurgical coal used?
Metallurgical coal, also known as met coal, coking coal, or steelmaking coal, is a vital ingredient for making steel, iron alloy, carbon and other metals used in everything from buildings, tools, trains, planes, and automobiles, to cookware, cutlery, surgical tools and implants.
Does India produce coking coal?
Tata Steel, however, has about 25-30 per cent of its coal requirement met through domestic coking coal supplies followed by state-owned Steel Authority of India (SAIL). India has large coking coal reserves in Jharia, in Jharkhand which continuously suffer from fire leaving the region unexplored for mining.
What is the use of subbituminous coal?
Subbituminous coals are a type of coal whose properties range from those of lignite to those of bituminous coal and are used primarily as fuel for steam-electric power generation.
Is coking coal thermal coal?
Thermal Coal Is Used to Generate Electricity
Coking coal (also known as metallurgical coal) is used for steel manufacturing and is far from technologically obsolete. Coking coal as a product holds a much higher value than thermal coal, with average export prices more than double those for thermal coal.
What is difference between thermal coal and coking coal?
Thermal coal and coking coal are two such types of coal. The key difference between coking coal and thermal coal is that coking coal is mainly used to produce high-quality coke, whereas thermal coke is important in producing electricity.
Can you make steel without coking coal?
Now, nearly all new steel globally is produced using iron oxide and coking coal. Coking coal is usually bituminous-rank coal with special qualities that are needed in the blast furnace. While an increasing amount of steel is being recycled, there is currently no technology to make steel at scale without using coal.
Who uses thermal coal?
Uses. Coal is used for electricity generation, the manufacturing of steel and cement, and various industrial and residential applications. Canada produced 57 Mt of coal in 2019, of which 53% is metallurgical coal used for steel manufacturing and 47% thermal coal used for electricity.
What is metallurgical and thermal coal?
Metallurgical coal (or “coking coal”) is mined to produce the carbon used in steelmaking, while thermal coal is used to make steam that generates electricity. … Just as thermal coal can be replaced with clean energy from renewables, we can use low-emissions steel manufacturing to phase out metallurgical coal.
Is metallurgical coal burned?
Without oxygen, the coal does not burn. Instead, it begins to melt. The high temperatures volatilize unwanted impurities, such as hydrogen, oxygen, nitrogen, and sulfur. These off-gasses can either be collected and recovered as by-products or burned off as a source of heat.
Where is the Raniganj coal mines located in India?
Raniganj Coalfield is primarily located in the Asansol and Durgapur subdivisions of Paschim Bardhaman district of West Bengal. It spreads over to the neighboring districts of Birbhum, Bankura, Purulia and to Dhanbad district of Jharkhand.
What is meant by coking?
Coking is the heating of coal in the absence of oxygen to a temperature above 600 °C to drive off the volatile components of the raw coal, leaving a hard, strong, porous material of high carbon content called coke.
Where does UK buy its coal?
The UK imports coal from Russia, gas from Norway and uranium from Kazakhstan – this costs lots of money and it means we need other countries for our energy. It means people in the future will have to deal with waste and pollution.
Is there any coal mines in UK?
Almost all onshore coal resources in the UK occur in rocks of the Carboniferous age, some of which extend under the North Sea. … The last deep coal mine in the UK closed on 18 December 2015. Twenty-six open cast mines still remained in operation at the end of 2015.
Who produces coking coal in Australia?
Australia’s top three coal producers, Glencore, BHP and Yancoal, recorded hefty profits last year from coking and thermal coal.
Who is Australia biggest coal producer?
Whitehaven Coal – Australia’s largest independent coal producer.
What countries buy Australian coal?
Australian exports continued to move to smaller markets for its coal such as Indonesia, Thailand, the Netherlands, Malaysia, United Arab Emirates, the Philippines and Pakistan, as suppliers continue to look to diversify in response to Beijing’s import ban.