Burn-off and Production of CO and CO2 in the Oxidation of Nuclear Reactor-Grade Graphites in a Flow System
作者： Minoru TAKAHASHI , Masahiro KOTAKA , Hiroshi SEKIMOTO
DOI: 10.1080/18811248.1994.9735290
关键词: Nuclear reactor 、 Carbon dioxide 、 Carbon monoxide 、 Analytical chemistry 、 Nuclear chemistry 、 Graphite 、 Atmospheric temperature range 、 Flow system 、 Graphite-moderated reactor 、 Chemistry 、 Limiting oxygen concentration
摘要: The oxidation behaviors of IG-110 and PGX graphites were experimentally investigated in the temperature range from 500 to 1,500°C for oxygen concentration 10 30 wt% (1.37 5.09 mol%) reacting gas velocities 6.63 19.9 m/s (estimated at 900°C). graphite specimens prepared simulate annular coolant channel core HTGR. It has been found that upstream surface is more oxidized both graphites, rougher than IG-110. starts about 700°C reaches maximum above 800 900°C accompanied by production CO2 around 850°C a monotonic increase CO with increasing temperature. behavior similar IG-110, except lower produces over 750 950°C while becomes this range. present result product ratio t...
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