Difference between revisions of "Charcoal"
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[[Image:Charcoal_stick.jpg|thumb|right|160px|Charcoal stick for drawing and writing]] | [[Image:Charcoal_stick.jpg|thumb|right|160px|Charcoal stick for drawing and writing]] | ||
| − | One possible use of charcoal in a [[settlement|Martian settlement]] is the creation of [[terra preta]] for the [[greenhouse]]s. | + | ==Uses== |
| + | * One possible use of charcoal in a [[settlement|Martian settlement]] is the creation of [[terra preta]] for the [[greenhouse]]s. | ||
| + | * Beds of granular [[Activated_(Chemistry)|activated]] charcoal are used to [[Life support|filter]] organic compounds from water and air.<ref name=KilgoreEtAl>M.V. Kilgore, A.T. Mikell & D.L. Pierson - ''Microbiological issues of space life support systems'' in S.E. Churchill ed. ''Fundamentals of space life sciences'' 1997. ISBN 0-89464-051-8 p. 296.</ref> | ||
| + | * If a colony biosphere had an excess of carbon, it could be sequestered and stored as charcoal. | ||
| + | * Carbon has a very high melting point. Charcoal, perhaps [[sinter|sintered]], could be used as a low-strength [[refractory]] material in the anoxic [[atmosphere]] of Mars. (In Earth's atmosphere, the impurities give it a low ignition point and [[graphite]] must be used instead.<ref name=GeneralAtomic>General Atomic, as quoted by Charles Barton in ''[http://nucleargreen.blogspot.com.au/2011/03/does-nuclear-grade-graphite-burn.html Does Nuclear Grade Graphite Burn?]'' 2011. </ref>) | ||
| − | [[Category: | + | ==See also== |
| + | * [[Bosch process]] | ||
| + | * [[Graphite]] | ||
| + | |||
| + | ==References== | ||
| + | <references /> | ||
| + | |||
| + | [[Category:Materials]] | ||
Latest revision as of 12:46, 18 December 2018
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Charcoal is almost pure carbon. It is producted by heating biological material (usually wood) in an anoxic environment, causing the volatiles to boil off. The process is essentially the same as that used to produce coke from coal.
Uses
- One possible use of charcoal in a Martian settlement is the creation of terra preta for the greenhouses.
- Beds of granular activated charcoal are used to filter organic compounds from water and air.[1]
- If a colony biosphere had an excess of carbon, it could be sequestered and stored as charcoal.
- Carbon has a very high melting point. Charcoal, perhaps sintered, could be used as a low-strength refractory material in the anoxic atmosphere of Mars. (In Earth's atmosphere, the impurities give it a low ignition point and graphite must be used instead.[2])
See also
References
- ↑ M.V. Kilgore, A.T. Mikell & D.L. Pierson - Microbiological issues of space life support systems in S.E. Churchill ed. Fundamentals of space life sciences 1997. ISBN 0-89464-051-8 p. 296.
- ↑ General Atomic, as quoted by Charles Barton in Does Nuclear Grade Graphite Burn? 2011.
