Pyrolysis of poly-L-leucine under combustion-like conditions

被引:104
作者
Hansson, KM [1 ]
Åmand, LE
Habermann, A
Winter, F
机构
[1] Chalmers Univ Technol, Dept Energy Convers, S-41296 Gothenburg, Sweden
[2] Vienna Univ Technol, Inst Chem Engn, A-1060 Vienna, Austria
关键词
pyrolysis; protein; biomass; HCN; NH3; HNCO;
D O I
10.1016/S0016-2361(02)00357-5
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The protein poly-L-leucine has been used as a model compound for the nitrogen in biomass fuels. It was pyrolysed in a fluidised bed at 700 and 800 degreesC and the pyrolysis gases were analysed with a FT-IR spectrometer. HCN, NH3 and HNCO were identified as the main nitrogen-containing species, while neither NO nor N2O were found among the pyrolysis gases. At 700 degreesC, as much as 58% of the nitrogen content was converted into HCN and 31% into NH3. The HCN/NH3 ratio increased from about 1.9 at 700 degreesC to above 2.2 at 800 degreesC. Pyrolysis of another protein, poly-L-proline, at 800 degreesC gave a HCN/NH3 ratio close to 10. This revealed that the protein's amino acid composition has a marked impact on the composition of the pyrolysate. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:653 / 660
页数:8
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