Preparation and Performance Evaluation of Biochars from Neem Seed Active Substance Extracted Residues (NSASER)

3rd International Conference on Advances in Environment Research

生态环境科学;地球科学

Li, Jialei^1 ; Lu, Shuwen^1

Food Processing Institute, Heilongjiang Academy of Agricultural Sciences, Harbin, China^1

关键词: Extracted residue;    Industrial by-products;    People's Republic of China;    Performance evaluations;    Performance indices;    Porous structures;    Pyrolysis process;    Pyrolysis temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/68/1/012018/pdf
DOI  :  10.1088/1755-1315/68/1/012018

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Neem seed active substance extracted residues (NSASER) is industrial by-product, which is often discarded as a waste. It would lead to a certain degree of harm to the environment. The aim of this study was to prepare the biochars with neem seed active substance extracted residues (NSASER) under the anaerobic pyrolysis conditions. The pyrolysis process was studied with different pyrolysis power (200W, 500W, 800W, 1100W and 1400W), and the performance of the prepared biochars was evaluated. The results showed that the required time was to complete the pyrolysis process that gradually decreased with pyrolysis power increased from 200 to 1400 W, and the final pyrolysis temperature was to complete the pyrolysis process that increased with pyrolysis power increased from 200 to 1400 W. The biochars yield decreased with pyrolysis power increased from 200 to 1400 W, and the biochars yield has the maximum value when the pyrolysis power was of 200W. And the prepared biochars still had some characteristics of the plant cell and kept uniform porous structure, which was beneficial to absorb the small molecule substance. The water content of the prepared biochars was 7.18±0.53, the ash content of the prepared biochars was 5.92±0.31 and the fixed carbon content of the prepared biochars was 81.27±0.89. Compared with the bamboo charcoal, the performance index of the prepared biochars was in according with National Standard of the People's Republic of China GBT26913-2011 of the bamboo charcoal. The prepared biochars had a potential value in application.