Scaling Up the Performance of a Reactor Model for Hydrotreating Vegetable Oil from Bench-Scale to Pilot-Scale Reactors,Industrial & Engineering Chemistry Research

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Scaling Up the Performance of a Reactor Model for Hydrotreating Vegetable Oil from Bench-Scale to Pilot-Scale Reactors
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-12-04 , DOI: 10.1021/acs.iecr.0c04538
Alexis Tirado ₁ , Jorge Ancheyta ₂

Affiliation

Scaling up and validation of a trickle-bed reactor model were performed with the experimental information obtained during the hydrotreatment of vegetable oil in a pilot-scale reactor. The scale-up is carried out with a previously developed bench-scale reactor model that demonstrated good agreement with the experimental data. The differences in the characteristics of both reactor scales affected catalyst wetting efficiency, diffusion limitations inside the catalytic particle, and wall effects. These alterations were attributed mainly to the use of larger catalytic particles and higher surface velocities of the feedstock used in the pilot-scale reactor compared with the bench-scale reactor. In addition, the catalyst used in the pilot-scale reactor showed more effectiveness than that in the bench-scale reactor, thus presenting more triglyceride conversion. Simulations with the rector model also indicated that the higher feed flow rate and the large amount of catalyst used in the pilot-scale reactor generate a greater release of heat that makes it difficult to stabilize the reactor to reach steady state.

中文翻译：

扩大将植物油加氢处理从试验台规模扩大到中试规模的反应堆模型的性能

利用中试规模反应器中植物油加氢处理过程中获得的实验信息进行了滴流床反应器模型的放大和验证。使用先前开发的台式规模反应器模型进行放大，该模型显示出与实验数据良好的一致性。两种反应器规模的特性差异都会影响催化剂的润湿效率，催化颗粒内部的扩散限制以及壁效应。这些改变主要归因于与台式反应器相比，在中试规模的反应器中使用了较大的催化颗粒和较高的原料表面速度。此外，中试规模反应堆所用的催化剂比台式规模反应堆具有更高的效率，因此呈现更多的甘油三酸酯转化。利用rector模型的模拟还表明，在中试规模反应器中使用较高的进料流速和大量的催化剂会产生更大的热量释放，这使得难以稳定反应器使其达到稳态。

更新日期：2020-12-16

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