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Process Simulation and Exergy Analysis of a Mercaptan Oxidation Unit in a Latin American Refinery.
ACS Omega ( IF 3.7 ) Pub Date : 2020-08-20 , DOI: 10.1021/acsomega.0c01791
Rayme Mestre-Escudero 1 , Alejandro Puerta-Arana 1 , Ángel Darío González-Delgado 1
Affiliation  

In this work, the mercaptan oxidation unit of an oil and gas refinery was simulated and assessed using exergy and parametric sensitivity analysis to identify opportunities for improvement from a technical and energy point of view. The process simulation was performed using Aspen HYSYS V10.1 to obtain extended mass and energy balances. The simulation results were validated with the data available in the literature. The effects of operating conditions on technical performance were analyzed via parametric analysis. The exergy analysis was applied to two case studies: the base case and the resulting case from technical improvements. The global exergy efficiency, irreversibilities, exergy of utilities, and efficiencies per stage were calculated to map process equipment with the highest losses of exergy. A comparison between both base and alternative cases was introduced in order to analyze increments in exergy efficiencies. An exergy efficiency of 84.21% was found for the base case, while for the alternative case after applying parametric sensitivity, it was calculated to be 81.95%. This decrease by 2.26% was attributed to the increase of irreversibilities and exergy of wastes to achieve a product with better quality standards.

中文翻译:

拉丁美洲精炼厂硫醇氧化装置的过程模拟和火用分析。

在这项工作中,对石油和天然气精炼厂的硫醇氧化单元进行了模拟和评估,使用了火用和参数敏感性分析,从技术和能源的角度确定了改进的机会。使用Aspen HYSYS V10.1进行了过程仿真,以获得扩展的质量和能量平衡。仿真结果已通过文献中的数据得到验证。通过参数分析来分析操作条件对技术性能的影响。火用分析应用于两个案例研究:基本案例和技术改进产生的案例。计算了总体的火用效率,不可逆性,公用事业的火用度以及每个阶段的效率,以绘制出火用损失最大的过程设备图。在基本案例和替代案例之间进行了比较,以分析火用效率的提高。在基本情况下,本能效率为84.21%,而在应用参数灵敏度后的替代情况下,计算出的效率为81.95%。减少了2.26%,这归因于不可逆性的增加和废物的火用,从而获得了质量标准更高的产品。
更新日期:2020-09-01
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