蒽醌法生产过氧化氢加氢催化剂的研究进展

发布时间：2018-03-14 14:01

本文选题：过氧化氢　切入点：蒽醌法　出处：《化工进展》2017年11期 　论文类型：期刊论文

【摘要】：加氢催化剂是蒽醌法生产过氧化氢(H2O2)的核心,很大程度上决定了装置的生产能力和成本,因而一直是蒽醌法工艺中的研究热点和需要重点突破的课题之一。高活性、高选择性和高稳定性的加氢催化剂不仅能显著提高生产效率,还可明显减少蒽醌降解物的生成,从而降低生产成本。本文简述了用于蒽醌加氢的镍基和钯基催化剂研究进展,特别重点介绍了Al2O3负载的钯基催化剂。总结了Al2O3载体的物理性质、表面酸性和修饰等因素对钯基加氢催化剂性能的影响,还介绍了近年来发展的新型钯基加氢催化剂。在此基础上,指出比表面积和孔径均较大、酸性和钯层厚度均适中、并且加入适当修饰剂的蛋壳型载钯催化剂是理想的蒽醌加氢催化剂。
[Abstract]:Hydrogenation catalyst is the core of anthraquinone production of hydrogen peroxide H _ 2O _ 2, which largely determines the production capacity and cost of the unit. Therefore, it has always been a hot spot in anthraquinone process and one of the key breakthrough topics. The hydrogenation catalysts with high selectivity and stability can not only significantly improve the production efficiency, but also reduce the formation of the degradation compounds of anthraquinone, thus reducing the production cost. In this paper, the research progress of nickel and palladium based catalysts for anthraquinone hydrogenation is reviewed. The effects of physical properties, surface acidity and modification of Al2O3 support on the performance of palladium based hydrogenation catalysts were summarized. A new palladium based hydrogenation catalyst developed in recent years is also introduced. On the basis of this, it is pointed out that the specific surface area and pore size are large, and the acidity and palladium layer thickness are moderate. And the eggshell supported palladium catalyst with proper modifier is an ideal catalyst for anthraquinone hydrogenation.
【作者单位】：浙江巴陵恒逸己内酰胺有限责任公司;中国石化石油化工科学研究院;
【分类号】：O643.36;TQ123.6

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