Name : The 37th Conference of Coal Science
Number : 37
Location : [in Japanese]
Date : September 28, 2000 - September 29, 2000
Pages 365-368
The evolution behaviors of nitrogen in coal during flash hydropyrolysis were investigated by using a continuous free-fall type reactor. The effects of temperature, hydrogen pressure, coal type and atmosphere were studied. The results showed that NH_3 was the main gaseous product, together with a little amount of HCN. The increases of temperature and hydrogen pressure promoted the evolution of coal-N. The dependencies of N-distribution on reaction conditions were the same for coals used. The evolution of coal-N to volatiles increased proportional to the increase of coal conversion.
