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，需要关于流体混合物的热物理性质的可靠信息，特别是关于相平衡的信息。目前，只要混合物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种性质。然而，当混合物的组成在大小、形状和化学一致性上有很大差异时，即在复杂的混合物中，很难可靠地预测共存流体相的热物理性质和组成。该研究计划旨在开发和测试用于关联和预测这类复杂混合物的热力学性质的方法，首先提供可靠和广泛的实验数据基础，然后开发描述这种性质的理论和模型。实验和理论部分应利用特别适合于微观性质研究的现代技术，例如化学反应混合物中的化学平衡。为了实现这些目标，该方案旨在加强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领域的合作。研究项目的结果是揭示具有工业意义的复杂流体混合物的实验研究和热力学性质建模的示范方法。

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.