Char (chemistry)

You can help expand this article with text translated from the corresponding article in jp. (May 2024) Click [show] for important translation instructions.

• Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
• You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is (using German): Content in this edit is translated from the existing German Wikipedia article at [[:de:Exact name of German article]]; see its history for attribution.
• You may also add the template {{Translated page|jp|Exact name of jp article}} to the talk page.
• For more guidance, see Wikipedia:Translation.

Look up char in Wiktionary, the free dictionary.

Char is the solid material that remains after light gases (e.g. coal gas) and tar have been driven out or released from a carbonaceous material during the initial stage of combustion, which is known as carbonization, charring, devolatilization or pyrolysis.

Further stages of efficient combustion (with or without char deposits) are known as gasification reactions, ending quickly when the reversible gas phase of the water gas shift reaction is reached.

See also

• Biochar
• Charcoal
• Coke (fuel)
• Petroleum coke
• Shale oil extraction
• Spent shale

• v
• t
• e

Coal

Coal types by grade
(lowest to highest)

• Xylit
• Peat¹
• Lignite
• Sub-bituminous coal
• Bituminous coal
• Anthracite
• Graphite¹

Coal combustion

• Ash pond
• Asian brown cloud
• Asthma
• Black coal equivalent
• Char
• Charcoal
• Coal
  • combustion products
  • fired power station
  • gas
  • phase-out
  • pollution mitigation
  • power in China
  • power in the United States
  • preparation plant
  • seam fire
  • tar
• Coke
• Coking
• Energy value
• Flue gas
• Fly ash
• Fossil fuel
• Fossil fuel phase-out
• Great Smog of London
• Greenhouse gas emissions
• Metallurgical coal
• NOx
• Smog
• Sulfur dioxide
• Toxic heavy metals

Coal mining

• Blackdamp
• Black lung disease
• Coal dust
• Coalfields
• Coal
  • gas
  • homogenization
  • liquefaction
  • mining disasters in the United States
  • mining region
  • refuse
  • slurry
  • town
• Environmental issues in Appalachia
• Environmental justice and coal mining in Appalachia
• Firedamp
• Health and environmental impact of the coal industry
• Health effects of coal ash
• History of coal mining
• Hydrogen sulfide
• Mining regions
• Outbursts
• Peak coal
• Problems in coal mining
• Refined coal
• Whitedamp

Note: [1] Peat is considered a precursor to coal. Graphite is only technically considered a coal type.

This article about a hydrocarbon is a stub. You can help Wikipedia by expanding it.

• v
• t
• e