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Optimization of a catalyst system through the sequential application of experimental design techniques

机译:通过顺序应用实验设计技术来优化催化剂体系

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The selective oligomerisation of ethylene to higher alpha olefins is an area of much recent interest. In this regard, Sasol Technology R&D has developed a homogeneous catalyst system based on bis-sulfanylamine (SNS) complexes of chromium for the selective trimerisation of ethylene to 1-hexene. It is activated by methylaluminoxane (MAO), which is an extremely expensive activator. This paper discusses how, through the sequential application of experimental design and response surface techniques, the activator requirements of the catalyst system were reduced 12 times, whilst improving the catalyst activity on a g/g Cr/h basis ca. three times and the activity on a g/g MAO basis ca. nine times. This reduction in the amount of MAO required led to economically attractive catalyst activities for the production of 1-hexene, and would not have been possible without the use of experimental design techniques. This paper will demonstrate the process of investigation through the use of sequential experimental design in practice.
机译:乙烯向低级α-烯烃的选择性低聚是最近引起人们关注的领域。在这方面,Sasol Technology R&D已开发出一种基于铬的双硫烷基胺(SNS)配合物的均相催化剂体系,用于将乙烯选择性三聚为1-己烯。它被甲基铝氧烷(MAO)活化,这是一种非常昂贵的活化剂。本文讨论了如何通过依次应用实验设计和响应面技术,将催化剂体系的活化剂要求降低12倍,同时提高基于g / g Cr / h的催化剂活性。 3次,以g / g MAO为基础的活性。九次。所需的MAO量的这种减少导致在生产1-己烯方面在经济上具有吸引力的催化剂活性,并且如果不使用实验设计技术是不可能的。本文将通过在实践中使用顺序实验设计来演示调查过程。

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