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Reverse flow adsorption: integrating the recovery and recycling of homogeneous catalysts

机译：逆流吸附：整合均相催化剂的回收和再循环

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摘要

Homogeneous catalysts are not applied often when compared to the use of heterogeneous catalysis due to various drawbacks of the usual recovery methods.In this paper,a novel concept is proposed for the integrated recovery and recycling of homogeneous catalysts.It combines an adsorptive separation with the reverse flow technology: reverse flow adsorption.Na~+ loaded Amberlyst 15 proved to be one of several suitable adsorbents for the reversible adsorption of homogeneous catalysts.A simplified plug flow model for packed beds showed that the implementation of the reverse flow adsorption concept into an oxo-synthesis process would only require two adsorption beds with a very small relative volume of only 1% compared to the volume of liquid reaction phase in the reactor.The adsorption temperature,which was chosen to be equal to the reaction temperature,was well within the stability constraints of the homogeneous catalyst and therefore,decomposition of the catalyst is not expected.Reverse flow adsorption is a promising concept that overcomes the drawbacks of the standard recovery methods and therefore,has a high potential to succeed.
机译：由于常规回收方法的种种弊端，与使用非均相催化剂相比，均相催化剂不常使用。本文提出了一种新颖的概念，用于均相催化剂的综合回收和再循环。逆流技术：逆流吸附负载Na〜+的Amberlyst 15被证明是几种可逆吸附均相催化剂的合适吸附剂之一。简化的填充床塞流模型表明，逆流吸附概念的实现羰基合成工艺仅需要两个吸附床，与反应器中液相反应相的体积相比，相对体积仅为1％。选择的吸附温度与反应温度相当，在均相催化剂的稳定性受到限制，因此不希望催化剂分解。吸附是一个有前途的概念，它克服了标准回收方法的缺点，因此具有很大的成功潜力。

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