School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
Bioresour Technol. 2015 Mar;179:98-103. doi: 10.1016/j.biortech.2014.12.026. Epub 2014 Dec 13.
In the paper, the production of wood vinegar from Chinese fir sawdust (FS), cotton stalk (CS) and bamboo sawdust (BS) by carbonization process was addressed. The wood vinegar yield was investigated and the organic compounds contained were determined by gas chromatography and mass spectrometry. It was found that the refined wood vinegar yield of FS increased firstly and then decreased with increasing carbonization temperature and the highest yield reached about 25% in 350-450°C. The relative contents of acids and ketones from FS decreased and that of phenols increased with increasing temperature. The relative contents of acids and phenols in the wood vinegars produced from the samples were in the order of BS>CS>FS and that of ketones reversed. KCl solution treatment caused a decrease in the relative contents of the phenols and ketones, but an increase in that of the acids in FS wood vinegar.
本文探讨了利用碳化工艺从中国枞木锯末（FS）、棉花秸秆（CS）和竹锯末（BS）中生产木醋液的方法。考察了木醋液的产率，并通过气相色谱和质谱法确定了其中所含的有机化合物。结果表明，随着碳化温度的升高，FS 的精制木醋液产率先增加后降低，在 350-450°C 时达到约 25%的最高产率。FS 中酸和酮的相对含量随温度的升高而降低，酚的相对含量增加。三种原料生产的木醋液中酸和酚的相对含量顺序为 BS>CS>FS，酮的顺序相反。KCl 溶液处理会降低 FS 木醋液中酚和酮的相对含量，但会增加酸的相对含量。
