Evolution Characteristics of Gases and Synergistic Effect of Macerals from Two Weak Reductive Coals during Pyrolysis
The pyrolysis reactivity and gases evolution characteristics of macerals separated from two typical weak reductive coals, Shendong (SD) and Lingwu (LW) coal were investigated by using an on-line TG-MS system. The results showed that inertinite has lower volatile yield and weight-loss rate but higher peak temperatures than that of vitrinite. The evolution intensities of C1-C4 light hydrocarbons and C7-C8 aromatic hydrocarbons from inertinite are lower than that of vitrinite. The C6H6 evolution curve of inertinite only has a shoulder peak and the intensity is lower than that of vitrinite at the main decomposition region of coal. In contrast, the C6H6 evolution intensity of vitrinite is obviously lower than that of inertinite at higher temperature. The evolution characteristics of H2, H2O, CO2, and SO2 also have some differences between vitrinite and inertinite.The pyrolysis behavior of mixtures with different vitrinite/inertinite ratios (1/4 and 4/1) were also investigated to determine the synergistic effect between vitrinite and inertinite.
weak reductive coals macerals pyrolysis gas evolution synergistic effect
Yunpeng Zhao Haoquan Hu Lijun Jin Bo Wu
Institute of Coal Chemical Engineering, Dalian University of Technology, 129 Street, Dalian 116012, China
国际会议
The 12th Asian Pacific Confederation of Chemical Engineering Congress(第十二届亚太化工联盟大会暨化工展览会)
大连
英文
2008-08-04（万方平台首次上网日期，不代表论文的发表时间）