title: Interaction and its induced inhibiting or synergistic effects during co-gasification of coal char and biomass char.
abstract: Co-gasification of coal char and biomass char was conducted to investigate the interactions between them. And random pore model (RPM) and modified random pore model (MRPM) were applied to describe the gasification behaviors of the samples. The results show that inhibiting effect was observed during co-gasification of corn stalk char with Hulunbeier lignite coal char, while synergistic effects were observed during co-gasification of corn stalk char with Shenmu bituminous coal char and Jincheng anthracite coal char. The inhibiting effect was attributed to the intimate contact and comparable gasification rate between biomass char and coal char, and the loss of the active form of potassium caused by the formation of KAlSiO4, which was proved to be inactive during gasification. While the synergistic effect was caused by the high potassium content of biomass char and the significant difference of reaction rate between coal char and biomass char during gasification.
authors.affiliation: University of Chinese Academy of Science, Beijing 100049, China; State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan, Shanxi 030001, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Ding
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan, Shanxi 030001, China.
authors.forename: Yongqi
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan, Shanxi 030001, China.
authors.forename: Zhiqing
authors.initials: Z
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan, Shanxi 030001, China. Electronic address: huangjj@sxicc.ac.cn.
authors.forename: Jiejie
authors.initials: J
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan, Shanxi 030001, China.
authors.forename: Yitian
authors.initials: Y
authors.lastname: Fang
mesh_terms: D000534:Alum Compounds / Q000737:chemistry; D000818:Animals; D018533:Biomass; D003031:Coal; D003198:Computer Simulation; D005740:Gases / Q000138:chemical synthesis; D006358:Hot Temperature; D007700:Kinetics; D008956:Models, Chemical; D059206:Natural Gas; D011188:Potassium / Q000737:chemistry*; D003313:Zea mays / Q000737:chemistry*
chemical_list: D000534:Alum Compounds; D003031:Coal; D005740:Gases; D059206:Natural Gas; C041524:aluminum sulfate; D011188:Potassium
keywords: Biomass char; Co-gasification; Inhibiting effect; Kinetic models; Synergistic effect