| 基于矿物质定量热分析的灰熔融反应动力学 |
| |
| 引用本文： | 赵永椿,张军营,田冲,郑楚光.基于矿物质定量热分析的灰熔融反应动力学[J].工程热物理学报,2010(3). |
| |
| 作者姓名： | 赵永椿 张军营 田冲 郑楚光 |
| |
| 作者单位： | 华中科技大学煤燃烧国家重点实验室; |
| |
| 基金项目： | 家自然科学基金项目(No.50906031;No.40972102;No.50936001);;华中科技大学自主创新研究基金资助(No.Q2009012) |
| |
| 摘 要： | 利用矿物质定量热分析理论对三种典型煤样灰熔融过程进行了详细分析,借助化学反应动力学相关概念,计算了灰样熔融反应动力学参数,结果表明:灰样熔融过程呈明显的三阶段反应过程,即初始熔融阶段、矿物共熔阶段以及熔融末期;熔融初始阶段反应活化能均大于后面两个阶段,矿物共熔过程活化能较初始阶段明显下降;在理论上证明了灰熔融逐渐加剧的过程。
|
| 关 键 词： | 矿物质定量 热分析 灰熔融动力学 煤燃烧 |
STUDY ON ASH MELTING DYNAMIC BASED ON MINERAL QUANTITATIVE THERMO-ANALYSIS |
| |
| ZHAO Yong-Chun ZHANG Jun-Ying TIAN Chong ZHENG Chu-Guang.STUDY ON ASH MELTING DYNAMIC BASED ON MINERAL QUANTITATIVE THERMO-ANALYSIS[J].Journal of Engineering Thermophysics,2010(3). |
| |
| Authors: | ZHAO Yong-Chun ZHANG Jun-Ying TIAN Chong ZHENG Chu-Guang |
| |
| Affiliation: | State Key Laboratory of Coal Combustion;Huazhong University of Science & Technology;Wuhan 430074;China |
| |
| Abstract: | The method of mineral quantitative thermal analysis was used to analyze melting process of three typical coal,concept of reaction kinetic was introduced and the melting reaction dynamic parameters were calculated using melting curves.The results indicated that ash fusion process can be divided into three stages:initial melting stage,minerals co-fusion stage,and final stage of melting. The reaction activation energy of the initial stage was greater than that of following two stages,the activation energy of m... |
| |
| Keywords: | mineral quantitative thermo-analysis ash melting dynamic coal combustion |
| 本文献已被 CNKI 等数据库收录！ |
