title: Novel carbon-rich additives preparation by degradative solvent extraction of biomass wastes for coke-making.
abstract: In this work, two extracts (Soluble and Deposit) were produced by degradative solvent extraction of biomass wastes from 250 to 350°C. The feasibilities of using Soluble and Deposit as additives for coke-making were investigated for the first time. The Soluble and Deposit, having significantly higher carbon content, lower oxygen content and extremely lower ash content than raw biomasses. All Solubles and most of Deposits can melt completely at the temperature ranged from 80 to 120°C and 140 to 180°C, respectively. The additions of Soluble or Deposit into the coke-making coal significantly improved their thermoplastic properties with as high as 9°C increase of the plastic range. Furthermore, the addition of Deposit or Soluble also markedly enhanced the coke quality through increasing coke strength after reaction (CSR) and reducing coke reactivity index (CRI). Therefore, the Soluble and Deposit were proved to be good additives for coke-making.
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Xianqing
authors.initials: X
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China. Electronic address: xian_li@hust.edu.cn.
authors.forename: Xian
authors.initials: X
authors.lastname: Li
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Li
authors.initials: L
authors.lastname: Xiao
authors.affiliation: School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243000, China.
authors.forename: Xiaoyong
authors.initials: X
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Shan
authors.initials: S
authors.lastname: Tong
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Wu
authors.affiliation: Department of Chemical Engineering, Kyoto University, Kyoto 615-8510, Japan.
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Ashida
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Wenqiang
authors.initials: W
authors.lastname: Liu
authors.affiliation: Institute of Advanced Energy, Kyoto University, Kyoto 615-8510, Japan.
authors.forename: Kouichi
authors.initials: K
authors.lastname: Miura
authors.affiliation: State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Yao
mesh_terms: D018533:Biomass; D002244:Carbon / Q000737:chemistry*; D003031:Coal; D003077:Coke; D006358:Hot Temperature; D007220:Industrial Waste; D010100:Oxygen / Q000737:chemistry; D010969:Plastics; D012995:Solubility; D012997:Solvents / Q000737:chemistry*
chemical_list: D003031:Coal; D003077:Coke; D007220:Industrial Waste; D010969:Plastics; D012997:Solvents; D002244:Carbon; D010100:Oxygen
keywords: Additives; Biomass; Coke-making; Degradative solvent extraction; Thermoplasticity