TPR STUDY ON CERIUM-COPPER OXIDE FOR DESULFURIZING HOT COAL GAS
IntroductionHigh-temperature desulfurization of coal-derived gas is a key component in the development of high-efficiency electric power generation processes such as the integrated gasification combined cycle (IGCC) and poly-generation system. Cerium oxide was evaluated as a candidate second-generation sorbent for high-temperature gas desulfurization due to its potential to produce elemental sulfur during the regeneration phase1. Although the reaction of CeO2-H2S has low sulfidation equilibria, reduced ceria, CeOn(n < 2), is a superior H2S sorbent2. In previous work3, it was found that the reducibility of cerium oxide was increased obviously by the presence of copper. In this paper, cerium-copper oxide samples with different proportions were prepared by co-precipitation. Reduction behavior of the samples was studied by TPR technique. The structure of the samples was also characterized by XRD, BET and FTIR technique.
Guo Bo Chang Liping Xie Kechang
Key Laboratory of Coal Science and Technology (Taiyuan University of Technology), Ministry of Education and Shanxi Province, Taiyuan, P R China
国际会议
The 7th China-Korea Workshop on Clean Energy Technology(第七届中韩清洁能源技术研讨会)
太原
英文
139-140
2008-06-25（万方平台首次上网日期，不代表论文的发表时间）