NO AND N_2 FORMATION BEHAVIORDURING A HIGH-TEMPERATURE O_2-GASIFICATION OF COAL CHAR

摘要

N_2 and NO formation behavior during the char gasification was examined using a pulse reactor in a temperature range from 1000 to 1300℃. The NO/N_2 ratio was high at a high char conversion and at a low gasification temperature. This trend can be explained as the result of secondary reaction between NO and char. This trend was similar to that observed at a low temperature region. The N/C ratio of product gas was constant throughout the gasification. This trend was different from that observed in a low temperature region, because the amount of accumulated is quite small at high temperature region.