New fields of application in thermal separation technology by additive manufacturing using the example of a laboratory-scale dividing wall column

以实验室规模分隔壁塔为例，增材制造热分离技术的新应用领域

• 批准号: 510113776
• 负责人: Professor Dr.-Ing. Thomas Grützner
• 金额: --
• 依托单位: Institut für Chemieingenieurwesen
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/510113776?language=en
• 关键词: New; fields; application; thermal; separation

Additive manufacturing (3D printing) allows the creation of components with significantly fewer design restrictions than is the case with classic manufacturing processes. In this way, geometries can be created whose complexity far exceeds previous possibilities. These advantages have long been exploited in the field of chemical process engineering, for example to create customized reactors. In thermal separation technology, however, there are still relatively few approaches to realizing the potential of this novel manufacturing technology. In recent years, however, there has been an increase in the number of publications dealing primarily with the creation of new packing structures for thermal separation apparatus based on additive manufacturing. Since additive manufacturing is still orders of magnitude more expensive than classical manufacturing processes, it is clear that an attempt must be made to initially focus on small-scale apparatuses, i.e. those intended for laboratory applications. In the context of this application, a complex apparatus, the dividing wall column, is chosen as an example to study the potential of additive manufacturing for thermal separation technology. The goal is a dividing wall column that can be tailored to the separation task and easily integrated into existing laboratory infrastructure (e.g. evaporator, condenser). This new technology can be used for experimental validation as part of the development of large-scale columns, or as a compact separation apparatus for laboratory applications. A major focus is on the scalability of the column. In particular, the separation performance should be as constant as possible over a wide range of gas and liquid loads and heat losses should be minimized. Here, additive manufacturing offers the potential to achieve these goals by optimizing the design. Basically, all relevant components such as the column shell, packing, distributor, headers, flanged connections, etc. are to be designed and optimized within the scope of this application. The properties of all components are to be optimized and finally characterized so that a component library is available which allows the rapid computer-aided adaptation of the column design to the separation task. Subsequently, a column will be assembled from the components developed in this way, integrated into an existing laboratory infrastructure and experimental studies will be carried out on it with the aim of proving the feasibility of this concept. Due to the complexity of the problem, the focus will certainly be on packing structures and adiabatic operation. The combination of CFD simulation with experiments forms the methodical backbone of the application and here numerous and fundamental scientific questions are located.

与传统制造工艺相比，添加制造(3D打印)允许制造具有显著更少设计限制的部件。通过这种方式，可以创建其复杂性远远超过以前的可能性的几何图形。长期以来，这些优势在化学工艺工程领域一直被利用，例如用于制造定制的反应堆。然而，在热分离技术中，实现这一新型制造技术潜力的方法仍然相对较少。然而，近年来，主要涉及基于添加剂制造的热分离设备的新的包装结构的出版物的数量有所增加。由于添加剂制造仍然比传统制造工艺昂贵几个数量级，显然必须尝试一开始专注于小规模仪器，即那些用于实验室应用的仪器。在这一应用的背景下，选择一个复杂的装置--隔壁塔为例，研究了添加制造在热分离技术中的潜力。我们的目标是一种隔壁塔，它可以根据分离任务量身定做，并容易地集成到现有的实验室基础设施(如蒸发器、冷凝器)中。这项新技术可用于实验验证，作为大型色谱柱开发的一部分，或用作实验室应用的紧凑型分离设备。一个主要的关注点是列的可伸缩性。特别是，分离性能应在广泛的气体和液体负荷范围内尽可能保持恒定，并应将热损失降至最低。在这里，加法制造提供了通过优化设计来实现这些目标的潜力。基本上，所有相关部件，如塔壳、填料、分配器、联箱、法兰连接等，都将在本申请范围内进行设计和优化。所有组分的性质都要进行优化，并最终确定其特征，以便有一个组件库，使柱设计能够在计算机辅助下快速适应分离任务。随后，将由以这种方式开发的部件组装一个柱，整合到现有的实验室基础设施中，并将对其进行实验研究，目的是证明这一概念的可行性。由于问题的复杂性，重点肯定会放在堆积结构和绝热操作上。CFD模拟与实验的结合形成了这一应用的方法论支柱，并在这里找到了许多基本的科学问题。