- Partial oxidation
In
chemistry , a partial oxidation (POX) reaction occurs when a substoichiometric fuel-air mixture is partially combusted in a reformer, creating a hydrogen-richsyngas , which can then be put to further use, for example in afuel cell .A distinction is made between "thermal partial oxidation" (TPOX) and "catalytic partial oxidation" (CPOX).
TPOX
TPOX ("thermal partial oxidation") reactions, which are dependent on theair-fuel ratio , proceed at temperatures of 1200°C and above.CPOX
In
CPOX ("catalytic partial oxidation") the use of acatalyst reduces the required temperature to around 800°C - 900°C. The choice of reforming technique depends on thesulfur content of the fuel being used. CPOX can be employed if the sulfur content is below 50 ppm. A higher sulfur content would poison the catalyst, so the TPOX procedure is used for such fuels.History
1926 Vandeveer en Parr at the
University of Illinois used oxygen in the place of air. [ [http://books.google.nl/books?id=cXNmyTTGbRIC&pg=PA230&lpg=PA230&dq=partial+oxidation+history&source=web&ots=v2RLyYw-qP&sig=TJBhHG1_OVXt1Q8tJ_R6NavhbNc&hl=nl&sa=X&oi=book_result&resnum=5&ct=result Industrial Gas Handbook Door Frank G. Kerry. Pag .230] ]ee also
*
IPOX (indirect partial oxidation)
*PROX
*Glossary of fuel cell terms
*Timeline of hydrogen technologies References
ource
:"Much of this article is translated from the German wikipedia article of 21st March 2007".
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