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partial oxidation : ウィキペディア英語版
partial oxidation
Partial oxidation (POX) is a type of chemical reaction. It occurs when a substoichiometric fuel-air mixture is partially combusted in a reformer, creating a hydrogen-rich syngas which can then be put to further use, for example in a fuel cell. A distinction is made between ''thermal partial oxidation'' (TPOX) and ''catalytic partial oxidation'' (CPOX).
==Principle==
Partial oxidation is a technically mature process in which natural gas or a heavy hydrocarbon fuel (heating oil) is mixed with a limited amount of oxygen in an exothermic process.
* General reaction equation (without catalyst, TPOX): \mathrm \ O_2 \rightarrow n \ CO + \frac \ H_2O}〔Rostrup-Nielsen, "Syngas in perspective", ''Catalysis Today'' 71 (2002), pp. 243-247.〕
* General reaction equation (with catalyst, CPOX): \mathrm \ O_2 \rightarrow n \ CO + \frac \ H_2}
* Possible reaction equation (heating oil): \mathrm + 6 \ O_2 \rightarrow 12 \ CO + 12 \ H_2}
* Possible reaction equation (coal): \mathrm + 12 \ O_2 \rightarrow 24 \ CO + 6 \ H_2}
The formulas given for coal and heating oil show only a typical representative of these highly complex mixtures. Water is added to the process for getting both the extreme temperatures as well as extra control on the formation of soot.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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