| 程序升温过程铁钙氧化物高温脱硫动力学行为表征 |
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| 引用本文： | 李彦旭,谢克昌,李春虎,郭汉贤.程序升温过程铁钙氧化物高温脱硫动力学行为表征[J].环境科学学报,2001,21(2):178-183. |
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| 作者姓名： | 李彦旭 谢克昌 李春虎 郭汉贤 |
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| 作者单位： | 太原理工大学 |
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| 基金项目： | 国家“九·五”科技攻关项目 !(编号 97 A2 6 0 3 0 2 0 2 )，国家重点基础研究发展规划项目! (编号G19990 2 2 10 4) |
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| 摘 要： | 将等效粒子模型用于程序升温热重法研究，用计算机编程分别给出铁钙氧化物高温脱硫剂在还原、脱硫过程的动力学参数随固体转化率的变化规律，指出还原和硫化过程中存在补偿效应，且该效应呈现不同的规律，还原过程为“正补偿”，硫化过程为“负补偿”。
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| 关 键 词： | 还原 脱硫 动力学模型 程序升温过程 铁钙氧化物 高温脱硫动力学 |
| 文章编号： | 0253-2468(2001)-02-0178-06 |
| 收稿时间： | 2000/3/13 0:00:00 |
| 修稿时间： | 2000年3月13日 |
Kinetics of the high temperature desulfurization with mixed iron-calcium oxides in temperature programmed processes |
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| LI Yanxu,XIE Kechang,LI Chunhu and GUO Hanxian.Kinetics of the high temperature desulfurization with mixed iron-calcium oxides in temperature programmed processes[J].Acta Scientiae Circumstantiae,2001,21(2):178-183. |
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| Authors: | LI Yanxu XIE Kechang LI Chunhu and GUO Hanxian |
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| Institution: | State Key Lab of C1 Chemical and Technology, Shanxi Key Lab of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024,State Key Lab of C1 Chemical and Technology, Shanxi Key Lab of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024,State Key Lab of C1 Chemical and Technology, Shanxi Key Lab of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024 and State Key Lab of C1 Chemical and Technology, Shanxi Key Lab of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024 |
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| Abstract: | Based on the thermogravimetric kinetics experiments, the equivalent grain model was applied to describe kinetics behavior of reduction and sulfidation of mixed iron-calcium oxides desulfurizer. In the temperature programmed reduction and sulfidation processes, activation energies and frequency factors changed as the solid conversion increased. Compensation effect of reduction was different from sulfidation. The former was positive compensation, while the latter was negative. |
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| Keywords: | reduction desulfurization kinetics model |
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