Friday, August 10, 2018

combustion - Can paper burn without oxygen or air?


If you put a paper inside an oven vacuum packed and go beyond 250 C, will it burn? There's no oxidizer. If not, what will happen?



Answer



No, the paper will not burn without oxygen being present.


Paper is made primarily of cellulose which is a polymer of glucose.



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If you heat paper in a vacuum the cellulose simply decomposes to HX2O, COX2, CO and carbon. As the paper decomposes it will "char" or turn brown to black as the cellulose polymer degrades. Here is a link to an abstract describing the process in more detail.


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