条浒苔与玉米秸秆热解特性及所制生物炭性质对比

doi:10.11934/j.issn.1673-4831.2016.05.025

Abstract

Abstract:

In order to explore potential of the algae to be used as resource, researches were done to determine pyrolytic feature of algae(Enteromorpha compressa) and cornstalk(Zea mays) with the technology of differential scanning calorimetry & thermo-gravimetric analysis (TG-DSC)and compare their pyrolysis products of biochar under different temperatures (350, 500 and 650 ℃) in property. Results show that the two materials differed sharply in pyrolytic feature. The algae are quite low in thermo-stability and pyrolytic reaction temperature, so they do not need so much heat as cornstalk does to get pyrolyzed into biochars at the same set temperature. Analysis of properties of the biochars prepared out of the algae and cornstalk shows that the biochar of algae was 33.47%-37.86% in carbon content, equaling to 49.07%-65.41% of the carbon content in the biochar of cornstalk, and also lower in specific surface area and aromatization degree than the biochar of cornstalk. However, the former was far too much higher than the latter in ash content and nitrogen content or 3.83-4.53 and 3.38-30.33 times as high as the latter.

Key words: Enteromorpha compressa, Zea mays, pyrolysis, biochar

CLC Number:

X712
X714

ZHANG Xing-yuan, SHAN Rui-feng, SUN Xiao-yin, LIU Fei, WANG Ping, ZHANG Zi-tong, ZHANG Zhen-bei. Pyrolytic Features of Enteromorpha compressa and Zea mays and Comparison Between Their Biochar Products in Property[J]. Journal of Ecology and Rural Environment, 2016, 32(5): 847-851.

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Pyrolytic Features of Enteromorpha compressa and Zea mays and Comparison Between Their Biochar Products in Property

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