title: Physico-chemical properties and gasification reactivity of co-pyrolysis char from different rank of coal blended with lignocellulosic biomass: Effects of the cellulose.
abstract: In this paper, the influence of cellulose on the physicochemical properties and the gasification reactivity of co-pyrolysis char was investigated. A specific surface area analyzer and an X-ray diffraction system were used to characterize the pore structure and the micro-crystalline structure of char. Fractal theory and deconvolution method were applied to quantitatively investigate the influence of cellulose on the structure of co-pyrolysis char. The results indicate that the improvements in the pore structure due to the presence of cellulose are more pronounced in the case of anthracite char with respect to bituminous char. Cellulose promotes the ordering of micro-scale structure and the uniformity of both anthracite and bituminous char, while the negative synergetic effect was observed during gasification of co-pyrolysis char. The exponential relationships between fractal dimension and specific surface area were determined, along with the relations between the gasification reactivity index and the microcrystalline structure parameter.
authors.affiliation: School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China; Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China.
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Wu
authors.affiliation: Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China. Electronic address: szwang@aliyun.com.
authors.forename: Shuzhong
authors.initials: S
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China.
authors.forename: Zhengyuan
authors.initials: Z
authors.lastname: Luo
authors.affiliation: Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China.
authors.forename: Lin
authors.initials: L
authors.lastname: Chen
authors.affiliation: Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China.
authors.forename: Haiyu
authors.initials: H
authors.lastname: Meng
authors.affiliation: Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhao
mesh_terms: D018533:Biomass; D002482:Cellulose; D002606:Charcoal / Q000737:chemistry; D003031:Coal; D006358:Hot Temperature; D014961:X-Ray Diffraction
chemical_list: D003031:Coal; D002606:Charcoal; D002482:Cellulose
keywords: Cellulose; Chemical and physical properties; Co-pyrolysis; Coal; Gasification reactivity