Melting Wood

danlisa · 06-21-07, 11:34 AM

From what I can see, when wood is heated enough in a vacuum, it will not even display the usual signs of melting. i.e Solid, partial solid, liquid.

Instead it will just 'evaporate' and the only substance left would be carbon powder. Which as you might know has a much higher thermal threshold.

Of course, you must know this from school. How do you think fossil fuels are created? LOL, what we are talking about here is charcoal. (or just a bit further on from that.)

I can show you a picture of carbon in a powder form if you like.:p

Letum · 06-21-07, 11:38 AM

Quote:

Originally Posted by danlisa

From what I can see, when wood is heated enough in a vacuum, it will not even display the usual signs of melting. i.e Solid, partial solid, liquid.

Instead it will just 'evaporate' and the only substance left would be carbon powder. Which as you might know has a much higher thermal threshold.

Of course, you must know this from school. How do you think fossil fuels are created? LOL, what we are talking about here is charcoal. (or just a bit further on from that.)

I can show you a picture of carbon in a powder form if you like.:p

Don't all solids become liquids before they become gases when gradually heated?

*edit* A pic of molten carbon would be acceptable.

danlisa · 06-21-07, 11:49 AM

Quote:

Originally Posted by Letum

Don't all solids become liquids before they become gases when gradually heated?

No, you can get substances which turn from Solids to Gases instantly. Example - Dry Ice.

Quote:

Originally Posted by Letum

*edit* A pic of molten carbon would be acceptable.

Stop playing!:p

There's no such thing.

(well there is but it evaporates instantly)

Letum · 06-21-07, 11:55 AM

Quote:

Originally Posted by danlisa

Quote:

Originally Posted by Letum

Don't all solids become liquids before they become gases when gradually heated?

No, you can get substances which turn from Solids to Gases instantly. Example - Dry Ice.

Oh yes!
I wonder why that is!

Quote:

Originally Posted by danlisa

Quote:

Originally Posted by Letum

*edit* A pic of molten carbon would be acceptable.

Stop playing!:p

There's no such thing.

(well there is but it evaporates instantly)

A pic of carbon "wood gas" then?

How about a nice oak wood gas coffee table?

Edit: Whaddya know! Wood Gas!

A car running on wood:

06-21-07, 01:06 PM

Car running on wood, is this an appropriat time to put a

"FAPFAPFAP" comment?

or even a "FapFapFap VROOOOOOMMMM"

The Avon Lady · 06-21-07, 01:29 PM

See wood gas.

Didn't the Russians try running trucks on wood during WWII, in places where there were severe fuel shortages?

Letum · 06-21-07, 01:33 PM

Quote:

Originally Posted by The Avon Lady

See wood gas.

Didn't the Russians try running trucks on wood during WWII, in places where there were severe fuel shortages?

Sorry Avon!
beat ya to that link (see above)

Wim Libaers · 06-21-07, 05:54 PM

Quote:

Originally Posted by danlisa

From what I can see, when wood is heated enough in a vacuum, it will not even display the usual signs of melting. i.e Solid, partial solid, liquid.

Instead it will just 'evaporate' and the only substance left would be carbon powder. Which as you might know has a much higher thermal threshold.

Of course, you must know this from school. How do you think fossil fuels are created? LOL, what we are talking about here is charcoal. (or just a bit further on from that.)

I can show you a picture of carbon in a powder form if you like.:p

If you heat wood like that, it will release volatile components (water, light hydrocarbons), and turn into charcoal. You may be able to get carbon powder (and ash) if you heat it for a very long time, but the normal result when heating until the outgassing becomes low, is a block of charcoal with the same shape as the wood you put in (but more brittle, therefore easy to turn into powder if desired).

(the difference between charcoal and carbon is that charcoal still contains some of the heavier hydrocarbons, and some ash)
http://en.wikipedia.org/wiki/Charcoal

06-21-07, 11:34 AM	#1
danlisa Navy Seal Join Date: Oct 2005 Location: Cornwall, UK Posts: 5,499 Downloads: 45 Uploads: 1	From what I can see, when wood is heated enough in a vacuum, it will not even display the usual signs of melting. i.e Solid, partial solid, liquid. Instead it will just 'evaporate' and the only substance left would be carbon powder. Which as you might know has a much higher thermal threshold. Of course, you must know this from school. How do you think fossil fuels are created? LOL, what we are talking about here is charcoal. (or just a bit further on from that.) I can show you a picture of carbon in a powder form if you like.:p __________________

06-21-07, 01:29 PM	#6
The Avon Lady Über Mom Join Date: May 2005 Location: Jerusalem, Israel Posts: 6,147 Downloads: 5 Uploads: 0	See wood gas. Didn't the Russians try running trucks on wood during WWII, in places where there were severe fuel shortages? __________________ "Victory will come to us from the wombs of our women." - Houari Boumedienne, President of Algeria, Speech before the UN, 1974

06-21-07, 01:06 PM	#5
Rilder Stowaway Posts: n/a Downloads: Uploads:	Car running on wood, is this an appropriat time to put a "FAPFAPFAP" comment? or even a "FapFapFap VROOOOOOMMMM"