期刊
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
卷 36, 期 12, 页码 1366-1371出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15567036.2011.553660
关键词
coal; lead; form; combustion; pyrolysis; gasification
资金
- Natural Science Foundation of China [20576138]
- National High-Tech Research and Development Program [2007AA05Z310]
- National University Student Innovation Test Plan [101010830]
The transformation behaviors of lead in a Chinese bituminous coal, Heidaigou coal, during pyrolysis under N-2 and H-2 were studied. Behaviors of Pb in the derivative chars at 1,000 degrees C during gasification and combustion were also performed. The results show that most lead in coal releases into a volatile phase above 900 degrees C under N-2. In comparison with N-2, H-2 promotes the release of lead during coal pyrolysis in some extent, especially for the lead remaining in the residues, which is mainly bound to aluminosilicates. For lead in the derivative chars at 1,000 degrees C, part is released into a volatile phase during gasification and combustion, the other remaining in the solids is still remaining in the residues, which does not transform to other solid forms.
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