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ANTHRACITE

ANTHRACITE

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In the last 15 years Minermet Group has opened up a new Division for Anthracite, Coal and Coke which is expanding very much, for markets in Europe, Russia, Middle East, Pakistan, India, Vietnam,  Australia and Indonesia.


Coal (from the Old English term col, which has meant "mineral of fossilized carbon" since the 13th century)is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.

Throughout history, coal has been used as an energy resource, primarily burned for the production of electricity and/or heat, and is also used for industrial purposes, such as refining metals. A fossil fuel, coal forms when dead plant matter is converted into peat, which in turn is converted into lignite, then sub-bituminous coal, after that bituminous coal, and lastly anthracite. This involves biological and geological processes that take place over a long period. The Energy Information Administration estimates coal reserves at 948×109 short tons (860 Gt).One estimate for resources is 18 000 Gt.

Coal is the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide anthropogenic sources of carbon dioxide releases. In 1999, world gross carbon dioxide emissions from coal usage were 8,666 million tonnes of carbon dioxide.In 2011, world gross emissions from coal usage were 14,416 million tonnes.Coal-fired electric power generation emits around 2,000 pounds of carbon dioxide for every megawatt-hour generated, which is almost double the approximately 1100 pounds of carbon dioxide released by a natural gas-fired electric plant per megawatt-hour generated. Because of this higher carbon efficiency of natural gas generation, as the market in the United States has changed to reduce coal and increase natural gas generation, carbon dioxide emissions have fallen. Those measured in the first quarter of 2012 were the lowest of any recorded for the first quarter of any year since 1992.In 2013, the head of the UN climate agency advised that most of the world's coal reserves should be left in the ground to avoid catastrophic global warming.

Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction. Since 1983 the world top coal producer has been China.In 2011 China produced 3,520 million tonnes of coal – 49.5% of 7,695 million tonnes world coal production. In 2011 other large producers were United States (993 million tonnes), India (589), European Union (576) and Australia (416).[9] In 2010 the largest exporters were Australia with 328 million tonnes (27.1% of world coal export) and Indonesia with 316 million tonnes (26.1%),while the largest importers were Japan with 207 million tonnes (17.5% of world coal import), China with 195 million tonnes (16.6%) and South Korea with 126 million tonnes (10.7%).

Q: Activated carbon shelf life
In fact, in the strict sense, there is nothing too strict shelf life at all, because the evaluation means, there is no standard.General activated carbon used in 3 months -1 years, did not open the seal, probably about 2 years or can be effective
Q: Use of coal gangueJust want to know what to do!
Now, coal gangue is also turning waste into treasure, has become a cycleOne of the key links in the economic chain, which had been abandoned in the past, is now being used for reclamation and road construction in the collapsed areaYes, a larger part of the continuous flow to the power plant, coal power chain to become a powerful guaranteeIn September last year, Longquan electric power plant in the next two built a gas brick factory, which, with the use of fly ash, the villagers have become richWay,
Q: Mechanism charcoal market know the boss
Mechanism charcoal market is very good, this is the truth, but the quality is better, the general mechanism of charcoal straw you must not sell a good price, to find their own market, the so-called repurchase reimbursement machine-made charcoal factory are fooled, do not be fooled, the other is the only mechanism charcoal sales radius within 200 kilometers have advantages, so in the production before you to understand the status quo of the local mechanism charcoal market, including competitors and market price information, a friend asked the same question every year, but there are also many to be out of this industry, no matter in any industry, quality is the most important, as long as the quality is good for no problem, if you don't sell. Let me help you sell, ha ha.
Q: What is lean coal, lean coal classification
Coal: coal soot level top coal, it is characterized by a higher ignition temperature (350 - 360 DEG C), high calorific value, weak bond or not. Coal is mainly used for power generation and power plant boiler fuel. The use of coal, and the other with the use of high volatile coal does not lose for a a good way.
Q: Soft, hard charcoal, what is the difference? Which is more suitable for painting head?Which brand is better?There are charcoal and carbon. What is the difference?
Hardness is not the same as the refill, followed by increasing.A: the refill by charcoal, charcoal type according to hardness refills can be divided into three kinds of soft, hard, and size of the. The use of different hardness because of the picture effect, and painting began with a soft proofing charcoal, because of its easy and erase, repeated correction, not to hurt the paper, then a detailed modification when the hard charcoal, this process with corresponding changes in their painting level, to fit for. The use of charcoal and pencil, pencil hardness and refill is also according to the different types of. Where B is soft, the hardness increases from 6B to 1B; H is hard, increasing from 1H to 6H. In addition, the charcoal black in color, strong expression ability, is an ideal tool for painting sketch, portrait is a plus, but it is difficult to wipe off heavy painting.
Q: Chemical, activated carbon purifier why the water from the following into the above
Thus, the contact time with activated carbon, water purification effect is good. In fact, this is the same as condensing tube
Q: Please explain the use of coal in various aspects!
5) living with coal: the number of living coal is also large, accounting for about 20% of fuel coal.6 metallurgical power coal: Metallurgical power coal is mainly used for sintering and blast furnace coal injection, the amount of less than 1% of the coal used for power.
Q: What is the role of coal
The use of coal is very extensive, according to the purpose of its use for two main purposes: (1) power coal, (2) coking coal
Q: Coal formation process and time
Coal is millions of years of plant leaves and roots, stacked on the ground with a layer of very thick black humus, due to changes in the earth's crust constantly buried underground, long isolated from the air and under high temperature and pressure, after a series of complex physical and chemical changes and other factors, the formation of black combustible sedimentary rocks, which is the coal forming process.
Q: How coal and oil are formed
After settling on the sea floor or at the bottom of the lake and covered with mud

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