失活负载型催化剂液相条件下的再生研究

项目名称： 失活负载型催化剂液相条件下的再生研究

项目编号： No.21503211

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 有机化学

项目作者： 阮明波

作者单位： 中国科学院长春应用化学研究所

项目金额： 21万元

中文摘要： 失活催化剂的再生是一个非常复杂的过程，尽管这方面已有不少的研究，但是效果并不理想，如何有效的使失活催化剂再生已成为研究的热点。我们前期研究发现，在液相条件下，经过氧化（溶解）--还原（沉淀）的多次平衡循环，可以使聚集变大的金属纳米粒子重新在载体上分散从而提高催化剂的催化性能。在此基础上，本项目拟采用实验和理论计算相结合的方法对催化剂的再生进行系统深入的研究，探索不同实验条件对纳米粒子分散效果的影响，以探明纳米粒子分散的机理。再进一步地研究工业催化剂失活的其他因素（如表面沉积物，毒化物种的毒化等），从而得出工业催化剂再生的最佳实验条件。本研究将通过研究实验条件、催化剂形貌和催化剂的催化性能三者之间的关系，推测催化剂再生的机理，为得出催化剂再生的最佳条件提供参考指导，对揭示工业催化剂再生的规律有着十分重要的意义。

中文关键词： 负载型催化剂；工业催化剂；再生；量子化学理论；机理

英文摘要： The proposed research is in the area of regeneration of deactivated catalyst. Regeneration of deactivated catalyst is a very complex process, although there are a lot of research in this area, but the effect is not ideal, how to effectively make the deactivated catalyst regeneration has become a hot topic. Our previous study found that, under liquid phase conditions, after many cycles of oxidation (dissolution) - reduction (precipitation) equilibrium, it can made the larger aggregated metal nanoparticles dispersed on the support again to improve the catalytic performance. On this basis, the project intends to use a combination of experimental and theoretical approach to the regeneration of the catalyst system in-depth study to explore the effects of different experimental conditions on the effects of nanoparticles dispersed to ascertain the mechanisms of nanoparticles dispersion. And then, further study on other factors which deactivate industrial catalyst (e.g. deposited species on the surface of catalyst, poisoning species, etc.) will be taken to arrive at the optimum conditions of catalyst regeneration. By studying the relationship between the experimental conditions, catalytic properties and catalyst between morphology, conjecture the mechanisms of catalyst regeneration. These results provide a guide for finding the best conditions for catalyst regeneration, has a very significance on revealing the industrial catalyst regeneration law.

英文关键词： supported catalyst;industrial catalyst;regeneration;quantum chemistry theory;mechanism