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It compacts and increases as moisture and volatile hydrocarbons are driven off. Coal has a carbon content between 75 and 90 % , lignite (brown coal) hasn't completed the transformation and contains more moisture and nitrogen than bituminous or anthracite coals. Lignite has about 30 to 40% carbon content.
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What forms of coal has the highest carbon content?
Anthracite.
Why is carbon content important in the burning of coal?
The higher the carbon content, the better the quality of the coal. In any piece of coal, whatever isn't carbon is logically something else - usually sulfur compounds (that's pollution when the coal is burned).
Which element forms both coal and diamonds?
The element that forms both coal and diamond is Carbon.
What element is found in coal or diamonds?
Coal and diamonds are both forms of carbon.
What is the type of coal that contains the highest carbon content?
Anthracite
What forms of coal has the highest carbon content?
Anthracite.
What is the difference between fixed carbon and total carbon in coal?
fixed carbon is carbon content of the coal/biomass which is not easily decomposed or combusted at lower temperatures(>200 c), and total carbon content of coal/biomass is volatile carbon present in form of other hydrocarbons forms like volatile organic compounds, etc.. which easily combusted at little higher temperatures (>50 c)
Why is carbon content important in the burning of coal?
The higher the carbon content, the better the quality of the coal. In any piece of coal, whatever isn't carbon is logically something else - usually sulfur compounds (that's pollution when the coal is burned).
Which element forms both coal and diamonds?
The element that forms both coal and diamond is Carbon.
What are the 3 pure forms of carbon?
The 3 pure forms of carbon are coal graphite and diamond
What element is found in coal or diamonds?
Coal and diamonds are both forms of carbon.
What is the type of coal that contains the highest carbon content?
Anthracite
What chemical forms coal?
The principal component is carbon.
Why do certain types of coal give off more carbon dioxide than other types of coal?
Coal is not all the same. Different coals have different amounts of carbon, Bituminous, or soft coals have the highest percentage of carbon, up to almost 90%, Anthracite or hard coals have close to 80% carbon content, and lignite, brown coals have about 40% carbon content. Carbon content is what determines how much CO2 is produced by coal's combustion.
How does the carbon in coal become part of the carbon dioxide in the air?
When coal is burnt the chemical change combines carbon from the coal with oxygen from the air to produce carbon dioxide.
How is pounds of sulfur dioxide per million BTU of coal calculated?
The sulfur content of coal and its heating values are not constant across all grades of coal. It would require information of type of coal, carbon content, sulfur content and ash content to even start the calculation.
What kind of change forms when coal burns?
By burning it - usually (but not always) in order to turn water into steam, and using the steam to turn turbines.
