The highest mountain in the world is Mount Everest. Its peak rises to 8,848 m (29,028 ft 9 in) â the highest point in the world.
The objective of proximate analysis indicates the percentage by weight of the Fixed Carbon, Volatiles, Ash, and Moisture Content in coal. The amounts of fixed carbon and volatile combustible matter directly contribute to the heating value of coal.
Some of the sulfur that exists in tiny specks in coal (called pyritic sulfur  because it is combined with iron to form iron pyrite, otherwise known as fool's gold) can be washed out of the coal in this manner.Typically, in one washing process, the coal chunks are fed into a large water-filled tank.imestone can be made to absorb sulfur gases under the right conditions much like a sponge absorbs water. In most scrubbers, limestone (or another similar material called lime) is mixed with water and sprayed into the coal combustion gases (called flue gases).