| Effect of Calcium Oxide Additive on the Performance of Iron Oxide Sorbent for High-Temperature Coal Gas Desulfurization |
| |
| 作者姓名： | Huiling Fan Kechang Xie Ju Shangguan Fang Shen Chunhu Li Key Laboratory for Coal Science and Technology of Ministry of Education and Shanxi Province Taiyuan University of Technology Taiyuan Shanxi China |
| |
| 作者单位： | Huiling Fan Kechang Xie Ju Shangguan Fang Shen Chunhu Li Key Laboratory for Coal Science and Technology of Ministry of Education and Shanxi Province，Taiyuan University of Technology，Taiyuan 030024，Shanxi，China |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| |
| 摘 要： | The effect of calcium oxide additive in iron oxide sorbent for hot gas desulfurization was investigated by XRD and TPR techniques.XRD characterization showed that CaO was highly dispersed after the calcination of sorbents.Calcium sulfate formed in the desulfurization was decomposed and regenerated to CaO by reacting with CO before the next sulfidation process.Calcium participated in every sulfidation/regeneration cycle and contributed to the enhancement of sulfur capacity.The TPR results showed that the reduction temperature of the sorbent increased with the increase of the content of calcium.Calcium played a role of retarding reduction.Therefore,the addition of calcium oxide additive will benefit the utilization of iron oxide sorbent in strongly reducing atmospheres.
|
Effect of Calcium Oxide Additive on the Performance of Iron Oxide Sorbent for High-Temperature Coal Gas Desulfurization |
| |
| Huiling Fan Kechang Xie Ju Shangguan Fang Shen Chunhu Li Key Laboratory for Coal Science and Technology of Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan ,Shanxi,China.Effect of Calcium Oxide Additive on the Performance of Iron Oxide Sorbent for High-Temperature Coal Gas Desulfurization[J].Journal of Natural Gas Chemistry,2007,16(4). |
| |
| Authors: | Huiling Fan Kechang Xie Ju Shangguan Fang Shen Chunhu Li |
| |
| Abstract: | The effect of calcium oxide additive in iron oxide sorbent for hot gas desulfurization was investigated by XRD and TPR techniques.XRD characterization showed that CaO was highly dispersed after the calcination of sorbents.Calcium sulfate formed in the desulfurization was decomposed and regenerated to CaO by reacting with CO before the next sulfidation process.Calcium participated in every sulfidation/regeneration cycle and contributed to the enhancement of sulfur capacity.The TPR results showed that the reduction temperature of the sorbent increased with the increase of the content of calcium.Calcium played a role of retarding reduction.Therefore,the addition of calcium oxide additive will benefit the utilization of iron oxide sorbent in strongly reducing atmospheres. |
| |
| Keywords: | calcium oxide iron oxide sorbent high temperature desulfurization |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
