title: Study on product distributions and char morphology during rapid co-pyrolysis of platanus wood and lignite in a drop tube fixed-bed reactor.
abstract: The rapid co-pyrolytic behavior of platanus wood and Pingzhuang lignite was explored in a drop tube fixed-bed reactor under nitrogen atmosphere. Synergistic effects were evaluated using the deviations between experimental and predicted values of product yields and gas components. Surface morphology of residual chars were also investigated applying the scanning electron microscopy technique (SEM). This study found that the experimental values of gas volume yields were greater than the predicted, and the maximum gas volume yield exhibited with 50% biomass blending ratio at 1000°C. Positive or negative synergistic effects happened in gas components at different blending ratios and temperatures. The SEM results indicated that the differences of char surface morphology were evident. The fractal dimensions of residual chars increased with increasing biomass blending ratio, which may improve their gasification or combustion reactivity. The change in product yields and gas components was attributed to the secondary reactions and tar cracking.
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. Electronic address: szwang@aliyun.com.
authors.forename: Shuzhong
authors.initials: S
authors.lastname: Wang
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: 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.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhao
mesh_terms: D019149:Bioreactors; D001709:Biotechnology / Q000379:methods*; D002606:Charcoal / Q000737:chemistry*; D003031:Coal / Q000032:analysis*; D017709:Fractals; D005740:Gases / Q000032:analysis; D006358:Hot Temperature; D039105:Proteaceae / Q000737:chemistry*; D014934:Wood / Q000737:chemistry*
chemical_list: D003031:Coal; D005740:Gases; C540010:biochar; D002606:Charcoal
keywords: Char morphology; Lignite; Platanus wood; Rapid co-pyrolysis; Synergistic effects