Coal FAQs:

Q: Is coal a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams?

A: Yes.

Q: Is coal the largest source of energy for the generation of electricity worldwide?

A: Yes, as well as one of the largest worldwide anthropogenic sources of carbon dioxide releases.

Q: Is coal the principal fuel for generating electricity in the United States?

A: Yes, and coal futures contracts provide coal producers and the electric power industry an important tool for hedging and risk management.

Q: Is coal mined in over 100 countries?

A: Yes, and on all continents except Antarctica.

Q: Is coal gasified to create syngas, which is burned in a gas turbine to produce electricity?

A: Yes, Hot exhaust gases from the turbine are used to raise steam in a heat recovery steam generator which powers a supplemental steam turbine.

Q: Is coal a can set dozens of coal seams on fire?

A: Yes.

Q: Was coal unloaded at wharves along the River Fleet?

A: Yes, and are still in existence.

Q: Is coal found, the higher its rank?

A: Yes, It appliies if the thermal gradient is entirely vertical; however, metamorphism may cause lateral changes of rank, irrespective of depth.

Q: Is coal ash?

A: Yes, and Coal ash is hazardous and toxic to human beings and other living things.

Q: Is coal mixed with oxygen and steam while also being heated and pressurized?

A: Yes.

Q: Is coal the product of a coal-upgrading technology that removes moisture and certain pollutants from lower-rank coals such as sub-bituminous and lignite coals?

A: Yes.

Q: Is coal coked at temperatures between 360 and 750 °C?

A: Yes, These temperatures optimize the production of coal tars richer in lighter hydrocarbons than normal coal tar.

Q: Is coal a fossil fuel that forms when dead plant matter is converted into peat?

A: Yes, and which in turn is converted into lignite, then sub-bituminous coal, after that bituminous coal, and lastly anthracite.

Q: Is coal extracted from the ground by coal mining?

A: Yes.

Q: Is coal burned in a mixture of recirculated flue gas and oxygen?

A: Yes, and rather than in air, which largely eliminates nitrogen from the flue gas enabling efficient, low-cost CO2 capture.

Q: Was coal mined in Britain?

A: Yes.

Q: Is coal called carbonization?

A: Yes.

Q: Is coal of much higher interest in countries like South Africa?

A: Yes, and China, India and the United States where there are abundant coal resources.

Q: Is coal composed primarily of carbon?

A: Yes, and along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.

Q: Was coal so plentiful?

A: Yes, and people could take three hot baths a week.

Q: Is coal so important in making steel using the conventional route?

A: Yes.

Q: Is coal the largest contributor to the human-made increase of CO2 in the atmosphere?

A: Yes.

Q: Is coal burned?

A: Yes.

Q: Is coal combined heat and power cogeneration and an MHD topping cycle?

A: Yes.

Q: Is coal generally based on the content of volatiles?

A: Yes.

Q: Is coal used by the Romans for the smelting of iron ore?

A: Yes.

Q: Is coal rare?

A: Yes.

Q: Was coal used in Britain during the Bronze Age?

A: Yes, where it has been detected as forming part of the composition of funeral pyres.

Q: Is coal known from Precambrian strata?

A: Yes, and which predate land plants—this coal is presumed to have originated from residues of algae.

Q: Was coal found on the shore?

A: Yes, and having fallen from the exposed coal seams on cliffs above or washed out of underwater coal outcrops, but by the time of Henry VIII, it was understood to derive from the way it was carried to London by sea.

Q: Is coal either hydrogenated or carbonized?

A: Yes.

Q: Is coal the official state mineral of Kentucky?

A: Yes.

Q: Is coal an important feedstock in production of a wide range of chemical fertilizers and other chemical products?

A: Yes.

Q: Is coal used for electricity generation?

A: Yes, and it is usually pulverized and then burned in a furnace with a boiler.

Q: Is coal known from most geological periods?

A: Yes.

Q: Is coal primarily used as a solid fuel to produce electricity and heat through combustion?

A: Yes.

Q: Is coal grey?

A: Yes, and hard, and porous and has a heating value of 24.