Where does the hydrogen in water gas come from?
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Does the hydrogen in water gas come from the hydrogen elements in coal or from hydrogen generated through the reaction?
The hydrogen content in coal is generally very low; surely some of the water has reacted to produce hydrogen gas.
The source of hydrogen in water gas can be traced back to the structure of coal; the hydrogen content in coal is much lower than that in water gas. Therefore, it can be concluded that part of the hydrogen in water gas comes from the water in coal slurry. Using isotopic labeling methods, 50%-60% of the water in coal slurry is converted into hydrogen.
Mainly derived from water: C+H2O=CO+H2
This post was last edited by wlq1970 on 2015-6-13 09:39. The hydrogen in water gas comes from two sources: one is the vaporization of the elemental components of the coal, and the other is generated through reactions (CO+H2O=CO2+H2 or C+H2O=CO+H2)
The main reaction for water gas production is C+H2O=CO+H2; most of this hydrogen is introduced into the reaction, and the method commonly used in industry is to add steam.
2C+3H2O=CO+CO2+3H2