Characteristics and potential values of bio-oil, syngas and biochar derived from Salsola collina Pall. in a fixed bed slow pyrolysis system.
Salsola collina Pall. as a typical euhalophyte was slowly pyrolyzed at 300°C, 500°C and 700°C in a fixed-bed system. The physiochemical properties of syngas, bio-oil and biochar were assayed to understand the impact of pyrolysis temperature on these parameters and then to evaluate their potential values. The results showed that syngas yield (26.07-46.37%) increased with pyrolysis temperature, while biochar yield (47.54-26.83%) decreased. Bio-oil yield (26-30%) was hardly affected by pyrolysis temperature. Both syngas and bio-oil had poor values as direct fuel. The euhalophyte-derived biochar had higher aromaticity (H/C 0.16-0.85, O/C 0.06-0.26), higher cation exchange capacity (198.82-435.74cmolkg(-1)), and higher K(+) (59.35-80.42gkg(-1)) and Na(+) (37.56-53.26gkg(-1)) compared with glycophyte-derived biochars. Our findings imply that halophyte biochar may be more suitable to use as a soil conditioner, which is worthy of further study.
Department of Soil and Water Science, College of Resources and Environment, China Agricultural University, Beijing 100193, China.
Yan
Y
Yue
Department of Soil and Water Science, College of Resources and Environment, China Agricultural University, Beijing 100193, China. Electronic address: linqm@cau.edu.cn.
Qimei
Q
Lin
Department of Soil and Water Science, College of Resources and Environment, China Agricultural University, Beijing 100193, China.
Muhammad
M
Irfan
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China.
Qun
Q
Chen
Department of Soil and Water Science, College of Resources and Environment, China Agricultural University, Beijing 100193, China.
Xiaorong
X
Zhao
D000327:Adsorption; D056804:Biofuels; D019149:Bioreactors; D002606:Charcoal; D031248:Salsola / Q000737:chemistry / Q000378:metabolism*; D012987:Soil / Q000737:chemistry; D013696:Temperature
D056804:Biofuels; D012987:Soil; C540010:biochar; D002606:Charcoal
Biochar; Biomass; Halophyte; Salsola collina Pall.; Slow pyrolysis