Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Content Provider	Semantic Scholar
Author	Zhong, Daoxu Zhong, Zhaoping Wu, Longhua Ding, Kuan Yong David Luo, Yongming Christie, Peter
Copyright Year	2016
Abstract	Appropriate disposal of hyperaccumulator biomass is a problem inhibiting the widespread use of phytoremediation technology. In the present study, kinetic analysis of the pyrolysis process of Sedum plumbizincicola, the behaviour of heavy metals and bio-oil composition were studied. The kinetic analysis of the pyrolysis process shows that activation energy (E) changed from 150 to 186 kJ mol−1 and the frequency factor (A) changed from 1.34 × 1011 to 8.99 × 1015 s−1. At temperatures of 450–750 °C more than 66.3 % of zinc (Zn) remained in the char. More than 87.6 % of the cadmium (Cd) was found in the bio-oil. Pyrolysis at 650 °C led to the highest yield of alkanes with low-oxygen compounds found in the bio-oil. Pyrolysis at 650 °C can likely offer a valuable processing method for S. plumbizincicola and recovery of Zn from the char and recovery of Cd from the bio-oil will be attempted in future research.
Starting Page	2315
Ending Page	2323
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1007/s10098-016-1150-y
Volume Number	18
Alternate Webpage(s)	http://ir.yic.ac.cn/bitstream/133337/17472/1/Pyrolysis%20of%20Sedum%20plumbizincicola,%20a%20zinc%20and%20cadmium%20hyperaccumulator-%20pyrolysis%20kinetics,%20heavy%20metal%20behaviour%20and%20bio-oil%20production.pdf
Alternate Webpage(s)	https://doi.org/10.1007/s10098-016-1150-y
Journal	Clean Technologies and Environmental Policy
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article