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  • Title: Effects of pyrolysis temperature and heating time on biochar obtained from the pyrolysis of straw and lignosulfonate.
    Author: Zhang J, Liu J, Liu R.
    Journal: Bioresour Technol; 2015 Jan; 176():288-91. PubMed ID: 25435066.
    Abstract:
    In this study, the effects of pyrolysis temperature and heating time on the yield and physicochemical and morphological properties of biochar obtained from straw and lignosulfonate were investigated. As pyrolysis temperature increased, pH, ash content, carbon stability, and total content of carbon increased while biochar yield, volatile matter, total content of hydrogen, oxygen, nitrogen and sulfur decreased. The data from scanning electron microscope image and nuclear magnetic resonance spectra indicated an increase in porosity and aromaticity of biochar produced at a high temperature. The results showed that feedstock types could also influence characteristics of the biochar with absence of significant effect on properties of biochar for heating time.
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