Abstract：
:The aim of this study was to evaluate how pyrolysis temperature influences the yield and physicochemical properties of biochar. We produced biochar from four feedstocks (wheat straw, corn straw, rape straw, and rice straw) pyrolyzed at 300, 400, 500, and 600 °C for 1 h, respectively. The results showed that all biochar yields decreased consistently with increasing temperature during pyrolysis and showed a steady decrease over 400 °C. Rice straw derived biochar had high yield superiority due to its higher content of ash. Pyrolysis temperature has significant effects on the properties of biochar; demonstrating a negative relationship with H, O, H/C, O/C, (O + N)/C, and functional groups, whilst having a positive relationship with C, ash, pH, electrical conductivity, and surface roughness. Higher pyrolysis temperature was beneficial to the formation of a more recalcitrant constitutions and crystal structure, making it available for material application.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Zhang X,Zhang P,Yuan X,Li Y,Han Ldoi
10.1016/j.biortech.2019.122318subject
Has Abstractpub_date
2020-01-01 00:00:00pages
122318eissn
0960-8524issn
1873-2976pii
S0960-8524(19)31548-2journal_volume
296pub_type
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