Abstract In this study, the effect of height/diameter (H/D) ratio and type of impeller on the power consumption of the agitator in the Continuous Stirred Tank Reactor (CSTR) was analyzed. CSTR in the process of producing nitrocellulose from cotton linters with a production capacity of 10,000 tons/year was used as a case study. In designing a CSTR, power consumption is also considered because it is related to techno-economics. The results show that it is necessary to adjust the amount of impeller related to the H/D ratio value because it can affect the level of liquid in the reactor during the stirring process so that it also affects the reaction conversion. This work shows that with the higher H/D ratio, the greater number of impellers needed and increase the agitator power consumption. For specific applications, the number of impellers (NT) must be increased to meet the minimum power consumption. As the result, this work recommends the optimal H/D ratio for CSTR design is the maximum H/D ratio to get the NT-calculation as close as to the NT-taken while satisfying the minimum power consumption required. The optimal H/D ratio can be different depending on the impeller type and application.

中文翻译：

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H/D比和叶轮类型对棉绒和硝酸硝化纤维素生产连续搅拌釜反应器搅拌器功耗的影响

摘要 本研究分析了高度/直径（H/D）比和叶轮类型对连续搅拌釜反应器（CSTR）中搅拌器功率消耗的影响。以生产能力为 10,000 吨/年的棉短绒生产硝化纤维过程中的 CSTR 为例进行了研究。在设计 CSTR 时，还考虑了功耗，因为它与技术经济相关。结果表明，需要根据H/D比值调整叶轮的数量，因为它会影响搅拌过程中反应器中的液位，进而影响反应转化率。这项工作表明，随着 H/D 比越高，所需的叶轮数量就越多，并增加了搅拌器的功耗。对于特定应用，必须增加叶轮的数量（NT）以满足最低功耗。因此，这项工作建议 CSTR 设计的最佳 H/D 比是最大 H/D 比，以使 NT-计算与 NT-takes 接近，同时满足所需的最小功耗。最佳 H/D 比可能因叶轮类型和应用而异。