title: Pyrolysis behaviors and thermodynamics properties of hydrochar from bamboo (Phyllostachys heterocycla cv. pubescens) shoot shell.
abstract: Hydrothermal carbonization (HTC) was employed to produce hydrochar from bamboo (Phyllostachys heterocycla cv. pubescens) shoot shell (BS) at severity (combined temperature and time) of 4.83-7.69. The pyrolysis and thermodynamics properties of the hydrochars were fully investigated. The results showed that the hydrochar properties (solid yield, C content, H/C and O/C atomic ratios, pyrolysis yield, pyrolysis index, formation of enthalpy, exergy, LHV, and HHV) of BS were highly dependent on severity and could be expressed by dose-response functions. The rapid variations of the hydrochar properties appeared at severity of 5.93-6.59. The pyrolysis temperature interval for the maximum weight loss shifted from 300 to 400°C at hydrothermal severity less than 6.59 to 400-500°C at hydrothermal severity greater than 6.59. The hydrochar thermal stability increased greatly with the severity increasing. And the thermodynamic properties of hydrochar approached those of lignin model compounds as the hydrothermal severity was greater than 6.59.
authors.affiliation: School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, China; Key Laboratory of Heating and Air Conditioning, The Education Department of Henan Province, China. Electronic address: shuqing.guo@163.com.
authors.forename: Shuqing
authors.initials: S
authors.lastname: Guo
authors.affiliation: School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, China.
authors.forename: Xiangyuan
authors.initials: X
authors.lastname: Dong
authors.affiliation: School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, China.
authors.forename: Caixia
authors.initials: C
authors.lastname: Zhu
authors.affiliation: School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, China.
authors.forename: Yangyang
authors.initials: Y
authors.lastname: Han
authors.affiliation: School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, China.
authors.forename: Fuqin
authors.initials: F
authors.lastname: Ma
authors.affiliation: School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450007, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Wu
mesh_terms: D002244:Carbon; D006109:Poaceae; D013696:Temperature
chemical_list: D002244:Carbon
keywords: Bamboo shoot shell; Hydrothermal carbonization; Pyrolysis; Reaction severity; Thermodynamic properties