ʻenehana
Hana ʻia kēia ʻano o ka carbo i hana ʻia me ka lanahu.
ʻO The Hoʻokō ʻia nā kaʻina hana kalapona i hoʻohana ʻia ma ka hoʻohana ʻana i hoʻokahi hui ʻana o kēia mau ʻanuʻu:
1.) Carbonization: Hoʻopili ʻia nā mea me ka ʻona kalapona i nā mahana ma ka laulā o 600-900 ℃, me ka ʻole o ka oxygen (maʻamau i ka lewa inert me nā kinoea e like me argon a nitrogen).
2.) Hoʻoulu / Oxidation: Hōʻike ʻia nā mea maka a i ʻole nā mea carbonised i nā ea hoʻoheheʻe ʻia (carbon monoxide, oxygen, a i ʻole ka mahu) ma nā mahana ma luna o 250 ℃, maʻamau i ka pae wela o 600-1200 ℃.