期刊
MATERIALS
卷 15, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/ma15072615
关键词
goldenrod; biochar; biomass; torrefaction; physicochemical properties
类别
资金
- Ministry of Education and Science
This study analyzed the feasibility of using goldenrod for biochar production. The results showed that torrefaction process increased the ash content, calorific value, and heat of combustion of biochar while decreasing the volatile matter content. The plant species and sampled parts were found to have a significant impact on the physicochemical properties of both raw biomass and biochar.
Torrefaction is one of the methods of thermal treatment of biomass, which allows obtaining a product of better quality in the form of biochar. The aim of the paper was to analyze the possibility of using goldenrod (Solidago canadensis, Solidago gigantea) for the production of biochar. The torrefaction process involved the vegetative and generative parts as well as the whole plant at temperatures of 250 degrees C and 275 degrees C, for 3 h. Next, the physicochemical properties of the raw material and biochar were determined, namely moisture content, ash content, volatile matter content, calorific value, and heat of combustion. The bulk density of raw biomass and biochar was also determined. It was found that after biomass torrefaction, the ash content, calorific value, and heat of combustion increased, while volatile matter content decreased. It has been observed that in both the case of raw biomass and biochar, the plant species and the sampled parts have a significant impact on the ash content, volatile matter content, calorific value, and heat of combustion.
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