title: Factors affecting the yield of bio-oil from the pyrolysis of coconut shell.
abstract: Coconut is a high-quality agricultural product of the Asia-Pacific region. In this paper, coconut shell which mainly composed of cellulose, hemicellulose, lignin was used as a raw material for coconut shell oil from coconut shell pyrolysis. The influence of the pyrolysis temperature, heating rate and particle size on coconut oil yield was investigated, and the effect of heating rate on coconut oil components was discussed. Experimental results show that the maximum oil yield of 75.74 wt% (including water) were obtained under the conditions that the final pyrolysis temperature 575 °C, heating rate 20 °C/min, coconut shell diameter about 5 mm. Thermal gravimetric analysis was used and it can be seen that coconut shell pyrolysis process can be divided into three stages: water loss, pyrolysis and pyrocondensation. The main components of coconut-shell oil are water (about 50 wt%), aromatic, phenolic, acid, ketone and ether containing compounds.
authors.affiliation: Department of Chemical Engineering, North China University of Science and Technology, Tangshan, 063009 Hebei People's Republic of China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Gao
authors.affiliation: Department of Chemical Engineering, North China University of Science and Technology, Tangshan, 063009 Hebei People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Chemical Engineering, North China University of Science and Technology, Tangshan, 063009 Hebei People's Republic of China.
authors.forename: Zhanbin
authors.initials: Z
authors.lastname: Qin
authors.affiliation: Department of Chemical Engineering, North China University of Science and Technology, Tangshan, 063009 Hebei People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Sun
keywords: Coconut oil; Coconut shell; Oil yield; Pyrolysis; Pyrolysis oil