Pilot plant scale multiple dividing wall column

试点计划扩展多个分隔壁塔

• 批准号: 447448188
• 金额: --
• 依托单位: Universität Ulm
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/447448188?language=en
• 关键词: Pilot; plant; scale; multiple; dividing

The subject of the application is the acquisition of a multiple dividing wall column on a pilot plant scale. Simple dividing wall columns for the separation of three fractions in a single column shell have been known for years and are nowadays widely used in industry. Compared to classical column configurations (e.g. direct split), these columns show approx. 30% reduced investment and operating costs. The savings in operating costs are due to the fact that undesirable backmixing in dividing wall columns is avoided to a great extent and the column can be operated close to the thermodynamic (=energetic) optimum. However, compared to a standard column, the complexity increases considerably. Dividing wall columns have 12 degrees of freedom compared to 5 of a standard column.Multiple dividing wall columns are the logical evolution of this technology. The implementation of additional dividing walls leads to the possibility to separate four fractions in a single column. This is accompanied by savings in investment and operating costs of about 50%. However, the complexity continues to increase. A multiple partition column for the separation of four pure fractions has 23 degrees of freedom. This complexity leads to major challenges not only for operation, but also for modeling and simulation and is the reason why no plant has been built worldwide yet.Since its foundation in November 2017, the Laboratory for Thermal Process Engineering of the Institute for Chemical Engineering at Ulm University has been conducting intensive research into questions of modelling, steady-state and dynamic simulation and mathematical optimization of multiple dividing wall columns. The large-scale facility applied for would enable us to investigate the operating behavior of such plants and to validate the models existing so far. Research issues include, for example, the investigation of the stationary and dynamic operating behavior, the development of optimum control strategies and the development and testing of specific components.

本申请的主题是在中试工厂规模上获得多个分隔壁塔。用于在单个柱壳中分离三种馏分的简单分隔壁柱已经公知多年，并且目前广泛用于工业中。与经典的色谱柱配置（例如直接分离）相比，这些色谱柱显示出约投资和运营成本降低30%。操作成本的节省是由于这样的事实，即在很大程度上避免了分隔壁塔中不希望的返混，并且该塔可以接近热力学（=能量）最佳值操作。然而，与标准柱相比，复杂性大大增加。与标准立柱的5个自由度相比，隔墙立柱具有12个自由度。多个隔墙立柱是该技术的逻辑演进。附加分隔壁的实施导致在单个柱中分离四个馏分的可能性。这将节省约50%的投资和运营成本。然而，复杂性继续增加。用于分离四种纯馏分的多分区柱具有23个自由度。这种复杂性不仅对操作，而且对建模和模拟都带来了重大挑战，这也是世界范围内尚未建成工厂的原因。自2017年11月成立以来，乌尔姆大学化学工程研究所热过程工程实验室一直在对建模问题进行深入研究，多隔板塔的稳态、动态模拟和数学优化。申请的大规模设施将使我们能够调查这些工厂的运行行为，并验证现有的模型。研究问题包括，例如，静态和动态操作行为的调查，最佳控制策略的开发以及特定组件的开发和测试。