In:
Asia-Pacific Journal of Chemical Engineering, Wiley, Vol. 5, No. 3 ( 2010-05), p. 403-407
Abstract:
The release characteristics of the coal‐gasification products were inspected in the thermo gravimetric analysis and the Fourier transform infrared spectroscopy (TGA‐FTIR) online instruments. Pingdingshan bituminous coals of three sizes had been selected to study in three kinds of atmosphere. The study indicated that there are remarkable influences of the sizes and the atmosphere to the release characteristics of HCN and NH 3 . The smaller the sizes are, the faster the volatile matter releases, thus the releasing velocity of HCN is easy to most early. Meanwhile, the more the pores are, the more are the active locations for coal gasification. The concentration of CO 2 ([CO 2 ]) could influence the releasing characteristic of the N‐containing components: The lower the concentration of CO 2 , the more difficult is the HCN conversion to NH 3 or N 2 . The littler the coverage rate of active locations is, and the slower C and N containing function component react and the slower active H releases, the slower is the transformation of HCN to NH 3 to increase the concentration of HCN. Copyright © 2009 Curtin University of Technology and John Wiley & Sons, Ltd.
Type of Medium:
Online Resource
ISSN:
1932-2135
,
1932-2143
Language:
English
Publisher:
Wiley
Publication Date:
2010
detail.hit.zdb_id:
2276947-X
