期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 99, 期 1, 页码 301-306出版社
SPRINGER
DOI: 10.1007/s10973-009-0150-0
关键词
Catalysis; HCl emission; NOX precursor; Pyrolysis; TG-FTIR; Wheat straw
资金
- Transformation of Scientific and Technical Achievements in Jiangsu province, China [BA2007023]
- Foundation for Excellent Doctorial Dissertation of Southeast University
The catalytic effects of iron, aluminum or silicon on the formation of NOX precursors (HCN, NH3 and HNCO) and HCl during wheat straw pyrolysis were studied using a thermogravimetric analyzer (TG) coupled with a Fourier transform infrared (FTIR) spectrometer in argon atmosphere. The results show that the presence of iron, aluminum or silicon decreases conversion of straw-N into NH3 with the sequence of Fe > Si > Al. The iron or silicon addition suppresses N-conversion into HCN and HNCO, and the aluminum addition has no notable influence on HCN emission during pyrolysis. The share of N-conversion to NH3 and HCN increases, but that to HNCO and NO decreases a little in the presence of added iron, aluminum or silicon. The addition of SiO2 results in the highest HCl removal efficiency.
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