FUEL & CHEMICAL PROCESSES ›› 2012, Vol. 43 ›› Issue (4): 3-5.

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Study on releasing regularity of nitrogen-containing compounds of gas phase during anthracite pyrolysis

Zeng Guang1   Zhang Xiangqun1   Wei Changhong1   Qian Juan2   

  1. 1. Commissioning and Test Department, Northeast Electric Power Research Institute, Shenyang 110006, China; 2. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Online:2012-07-31

Abstract:

The releasing regularity of HCN, NH3, N2O, NO and NO2 in the pyrolysis products of pulverized anthracite at 830℃, 880℃ and 930℃ are studied with a high temperature sedimentation furnace. The result shows that with the increasing of temperature, HCN, NO, NO2 and NOx are separated out from the nitrogen of coal specimen and the trend of conversion rate of nitrogen-containing compounds of gas phase is decreased first and then increased. The conversion rate of NH3 is increased first and then decreased; the conversion rate of predecessor of NOx is increased gradually; the conversion rate of N2O is decreased gradually. The predecessor of NOx is the main nitrogen containing product of gas phase of coal specimen pyrolysis.

CLC Number: