FBD型CO高变催化剂耐硫性能的研究  

Study of the sulfur resistant character of FBD high-temperature shift catalyst

作　　者：林性贻[1] 徐建本[1] 郑起[1] 张才武[1] 魏可镁[1] 

机构地区：[1]福州大学化肥催化剂国家工程研究中心,福建福州350002

出　　处：《福州大学学报（自然科学版）》2005年第4期533-536,541,共5页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省重点科技攻关资助项目(97004);福州大学科技发展基金资助项目(2004-XY-05)

摘　　要：通过对FBD型、B112型CO高变催化剂进行H2S中毒、恢复的活性比较,发现FBD型CO高变催化剂具有低温活性好、耐硫性能强的特点.采用扫描电镜、BET、红外光声光谱技术进行深入研究,结果表明:FBD型CO高变催化剂添加的耐硫助剂提高了催化剂比表面积、孔容,并且能优先与H2S结合,屏蔽催化剂中Fe3O4的Fe2+活性位与H2S作用,从而提高了催化剂的耐硫性能.The activity of FBD and B112 high- temperature shift catalysts in the process of H2S poisoning and regeneration have been investigated. The results show that FBD catalyst has higher activity in low temperature and better sulfur resistance. SEM、 BET and FTIR- PAS analysis reveal that the good sulfur resistant character is contributed to added sulfur resistant dose in catalyst, which improves BET specific surface area and pore volume, combines with H2S in priority, and shield the action between H2S and Fe^2＋ active site of Fe3O4.

关 键 词：CO 高温变换催化剂 耐硫性能 FBD 

分 类 号：O643.36[理学—物理化学]