燃料化学学报2018，Vol.46Issue(3)：265-272,8.
添加CaO的准东煤中温水蒸气气化特性的研究
Steam gasification characteristics of Zhundong coal with additive CaO at medium temperature
摘要
Abstract
The steam gasification characteristics of Zhundong coal with additive CaO at medium temperature of 700-750℃ were investigated by Thermal Gravimetric Analyzer (TGA). The Brunauer-Emmett-Teller (BET) specific surface area of the coal char was tested by N2 adsorption, and the different occurrence modes of alkali metals in the coal were analyzed by Inductively Coupled Plasma Optical Emission Spectrometer(ICP-OES). The results show that the soluble sodium could catalyze the gasification reaction effectively and the water-washed coal has the highest activity. The additive CaO and the inherent sodium have a synergistic effect during the gasification, and the optimal Ca/C molar ratio is 1. 0. The kinetic parameters were calculated using the homogeneous model (HM), the shrinking core model (SCM) and the modified volumetric model (MVM), respectively. The results indicate that the MVM is better to represent the char steam gasification reaction,and its activation energy calculated by the MVM is 160.90 kJ/mol.关键词
准东煤/碱金属/CaO/水蒸气气化/反应动力学Key words
Zhundong coal/alkali metal/CaO/steam gasification/kinetics分类
化学工程引用本文复制引用
刘洋,杨新芳,雷福林,肖云汉..添加CaO的准东煤中温水蒸气气化特性的研究[J].燃料化学学报,2018,46(3):265-272,8.基金项目
The project was supported by the National Key Research and Development Program of China(2016YFE0102500).国家重点研发计划(2016YFE0102500)资助 （2016YFE0102500）
