SPP 736: Stoffeigenschaften komplexer fluider Gemische

在能源、化学和制药工业的许多领域，在食品技术和生物技术以及环境工程的工艺设计和操作中，都需要关于流体混合物的热物理性质，特别是相平衡的可靠信息。目前，只要混合组分的物理化学性质没有显著差异，就可以从纯组分和二元混合物数据中预测多组分混合物的这些性质。然而，当混合组分在尺寸、形状和化学性质上存在很大差异时，即在复杂混合物中，很难对共存流体相的热物理性质和组成进行可靠的预测。该研究计划的目标是开发和测试方法，以便首先提供可靠和广泛的实验数据基础，然后开发描述这些性质的理论和模型，从而相互关联并预测这些复杂混合物的热力学性质。实验和理论部分应利用特别适合于研究微观性质的现代技术，例如化学反应混合物中的化学平衡。为了实现这些目标，该计划旨在增加和支持来自不同领域的研究小组之间的合作，例如化学工程和科学。研究项目的结果将揭示具有工业重要性的复杂流体混合物的热力学性质的实验研究和建模的示范方法。

Reliable information on the thermophysical properties of fluid mixtures particularly on phase equilibria are required in many areas in the energy, chemical and pharmaceutical industry, for the design and operation of processes in food technology and biotechnology as well as in environmental engineering. Currently such properties of multicomponent mixtures can be predicted from pure component and binary mixture data, as long as the mixture components do not differ significantly in their physico-chemical nature. However, when the mixture components differ considerably in size, shape and chemical identity, i.e. in complex mixtures, a reliable prediction of the thermophysical properties and the composition of coexisting fluid phases is rarely possible. The research programme is aiming to develop and test methods for the correlation and prediction of thermodynamic properties of such complex mixtures by at first providing a reliable and extensive base of experimental data, and, at second, to develop theories and models for describing such properties. The experimental and theoretical parts should utilize modern techniques particularly suited for the investigation of microscopic properties e.g. the chemical equilbrium in chemical reactive mixtures. To reach the goals the programme is aiming to increase and support cooperation between research groups from different areas, such as from chemical engineering and sciences. The results of the research projects are to reveal exemplary methods for experimental investigations and the modeling of thermodynamic properties of complex fluid mixtures of industrial importance.