Optimizing Established Processes like Sugar Extraction from Sugar Beets – Design of Experiments versus Physicochemical Modeling
Optimizing Established Processes like Sugar Extraction from Sugar Beets – Design of Experiments versus Physicochemical Modeling
复制标题
优化现有工艺，例如从甜菜中提取糖 - 实验设计与物理化学建模
DOI：
10.1002/ceat.201300484
复制
发表时间：
2013
影响因子：
2.1
通讯作者：
J. Strube
中科院分区：
文献类型：
--
作者：
S. Both;J. Eggersglüss;A. Lehnberger;T. Schulz;T. Schulze;J. Strube
从甜菜中提取糖是一种基于生产过程中积累的经验进行了数十年优化的工艺。这种工艺改进是在没有任何系统的优化方法的情况下实现的，这提出了这样一个成熟的工艺是否可以有效地进一步优化的问题，应用在过去十年中开发的方法，如统计实验设计或物理化学建模。将使用从甜菜中提取蔗糖的例子来评估和讨论各个方法的可行操作区域。操作条件进行了优化方面的萃取动力学和平衡行为。然而，物理化学建模需要关于相平衡、流体动力学和传质效应的详细信息。在这里，相比例可以被识别为敏感参数，并且可以提高诸如HETP（理论塔板的高当量）值的工艺性能。因此，容积生产率可作为指标。潜力的工艺设计和工艺优化相结合的统计实验设计和物理化学建模方法进行评估，并讨论各自的可能性和局限性。
Extraction of sugar from sugar beets is a process optimized over decades based on experience gathered during production. This process improvement is achieved without any systematic approach for optimization which raised the question whether such a mature process can be further optimized effectively, applying methods developed in the last decade like statistical experiment design or physicochemical modeling. Viable areas of operation for the respective approaches will be assessed and discussed using the example of sucrose extraction from sugar beet. Operating conditions are optimized regarding extraction kinetics and equilibrium behavior. Physicochemical modeling, however, requires detailed information on phase equilibria, fluid dynamics, and mass transfer effects. Here, the phase ratio can be identified as a sensitive parameter and process performance like the HETP (high equivalent of a theoretical plate) value can be enhanced. Therefore, the volumetric productivity serves as indicator. Potentials of process design and process optimization by a combination of statistical design of experiments and physicochemical modeling approaches are assessed, and respective possibilities and limitations are discussed.