异丁烷催化脱氢反应机理与失活动力学研究进展  

Advance in catalytic reaction mechanisms and deactivation kinetics of isobutane dehydrogenation

作　　者：王堂博 王广建[1] 孙万堂 牛鑫善 王芳[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《工业催化》2016年第4期1-6,共6页Industrial Catalysis

基　　金：国家自然科学基金(21276130)资助项目;山东省自然科学基金(ZR2014BP009)资助项目

摘　　要：异丁烯是化工行业重要的基础原料,国内外对异丁烯的需求量逐年递增。仅靠石油催化裂解已无法满足对异丁烯的需求,开展异丁烷脱氢制异丁烯工艺的研究备受关注。综述Cr系异丁烷脱氢催化剂的研究进展,探讨Cr系催化剂的活性中心以及发生在活性中心上的多种反应机理和相应的动力学模型,详述催化剂的失活机理,总结积炭的形成过程,指出Cr系异丁烷催化脱氢反应和失活机理以及相关动力学方面研究的不足,并对未来研究前景进行展望。Isobutene is an important raw material in petrolchemical industry, and the demand for isobutene is continuously increasing. The technologies for dehydrogenation of isobutane to isobutene have received much attention because the conventional petrolemn cracking cannot satisfy the growing demand for isobutene. In this paper, the recent development in chromium-based catalysts for isobutane dehydrogenation was reviewed. The active center of chromium-based catalyst, a variety of reaction mechanisms and their corre- sponding dynamic model based on the active center were discussed. The catalyst deactivation mechanism and the formation process of carbon deposition were also summaried. The shortage of researches on the reaction and deactivation mechanisms of chromium-based catalysts for isobutane catalytic dehydrogenation and the related reaction kinetic study were pointed out. The future research prospects of the chromium- based catalysts for isobutane dehydrogenation are also outlined.

关 键 词：催化反应工程 异丁烷 异丁烯 脱氢 动力学 反应机理 

分 类 号：O643.12[理学—物理化学] TQ221.213[理学—化学]