Is the coal of superior quality answer?

Is the best quality of coal?

Anthracite is the best quality of coal which carries 80 to 95 per cent carbon content. It ignites slowly with a blue flame. It has the highest calorific value.

Which of the following is true for good quality of coal?

Explanation: Good quality of coal should have less % of oxygen because increase in 1% oxygen content decreases calorific value approximately by 1.7%. Ideal fuel should have high calorific value and hence, less %oxygen.

What are the 4 types of coal?

Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite. The ranking depends on the types and amounts of carbon the coal contains and on the amount of heat energy the coal can produce.

Who has the best quality coal?

Australian coal is generally amongst the best quality coal in the world, regarded highly for its energy content, low impurity and its efficiency as a coking agent in the production of steel.

Is coal the worst polluter?

“Coal plants are the nation’s top source of carbon dioxide (CO2) emissions, the primary cause of global warming. In 2011, utility coal plants in the United States emitted a total of 1.7 billion tons of CO2. … Burning coal is also a leading cause of smog, acid rain, and toxic air pollution.

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What are the characteristics of a good quality coal?

Good burning characteristics – Complete combustion without agitation. Good grindability – sometimes it is needed to grind coal before burning. Good coal should not cause high abrasion on the machine. High ash softening temperature – High Ash softening temperature lower the risk of slagging.

Is anthracite better than coal?

From a performance and heating standpoint, anthracite is a higher quality coal for domestic, open fire heating. While harder to ignite, anthracite does burn for a longer period of time at a hotter temperature, meaning it is more effective at providing reliable warmth for your household. Both coals are fossil fuels.

Why is anthracite coal better than peat?

Answer: It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 92% and 98%.