A new gasoline absorption–stabilization process (GASP) is presented to intensify the separation process and significantly simplify the conventional GASP flowsheet. The conventional GASP includes four columns and recycling streams between refinery units, which makes the process very complex. In this study, the solubility and volatility of the C₅–C₁₁ hydrocarbons are discussed and a new indicator is presented to represent the performance of supplementary absorbent streams. The best suitable components are then found. A new flash tank is introduced into the GASP to obtain the suitable absorbent components to intensify the absorption process. As a result, the original secondary absorption column and the large recycling streams between the units are canceled. The conventional and new GASPs are simulated and optimized, respectively. Heat exchanger networks are designed for the two processes. The new process can significantly reduce the total annual cost by 11.24% as opposed to the conventional process.

中文翻译：

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精炼厂中用于分离强化和简化流程的新的汽油吸收-稳定化工艺

提出了一种新的汽油吸收稳定化工艺（GASP），以增强分离过程并显着简化传统的GASP流程图。常规的GASP包括四个塔和炼油厂单元之间的循环流，这使过程非常复杂。在这项研究中，C ₅ –C ₁₁的溶解度和挥发性讨论了碳氢化合物，并提出了一种新的指标来代表补充吸收剂流的性能。然后找到最合适的组件。将一个新的闪蒸罐引入GASP，以获得合适的吸收剂成分以增强吸收过程。结果，取消了原来的二级吸收塔和单元之间的大量循环流。常规GASP和新GASP分别进行了仿真和优化。热交换器网络是针对这两个过程而设计的。与传统方法相比，新方法可将年度总成本显着降低11.24％。