首页|The nitrogen transformation behavior based on the pyrolysis products of wheat straw
The nitrogen transformation behavior based on the pyrolysis products of wheat straw
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万方数据
维普
In order to provide basic design parameters for the industrial pyrolysis process,the transformation behavior of nitrogen was investigated using wheat straw as raw material. The distributions of nitrogen in pyrolysis char,oil,and gas were obtained and the nitrogenous components in the products were analyzed systematically by X-ray photoelectron spectroscopy (XPS),pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and thermogravimetric-Fourier transform infrared spectrometry (TG-FTIR). The nitrogen distribution ranges of the pyrolysis char,oil,and gas were 37.34％-54.82％,32.87％-40.94％ and 10.20％-28.83％,respectively. More nitrogen was retained in char at lower pyrolysis temperature and the nitrogen distribution of oil was from rise to decline with increasing temperature. The most abundant N-containing compounds in three-phase products were pyrrole-N,amines,and HCN,respectively. In addition,the transformation mechanism of nitrogen from wheat straw to pyrolysis products was concluded.
万方数据
维普
