Fractionation process within natural gas processing facility is an essential step that allows to obtain liquid light hydrocarbons that are often used as feedstocks in petrochemical industries. In this article, a process scenario that includes a heat integrated distillation column is proposed for natural gas liquids (NGL) recovery and assessed through multiscale simulations. Aspen HYSYS software was used to develop steady state process models whose results were used to estimate capital and utility costs. It was noticed that the proposed process has the highest capital cost and lower operating cost which reduces remarkably the total annual cost, this process can also achieve 60 % ethane and 97 % propane recoveries with no additional of external refrigeration. Heat integration, low TAC, separation efficiencies for ethane and propane components, self-refrigeration and more importantly a possibility of operating the process in ethane recovery and ethane rejection modes are the main highlights of the proposed NGL recovery process.

天然气加工设施内的分馏工艺是必不可少的步骤，可用于获得液态轻质烃，这些烃通常用作石油化工行业的原料。在本文中，提出了一种包括热集成蒸馏塔的工艺方案，用于天然气液（NGL）的回收，并通过多尺度模拟对其进行了评估。Aspen HYSYS软件用于开发稳态过程模型，其结果用于估算资金和公用事业成本。注意到，所提出的方法具有最高的资本成本和较低的运营成本，这显着降低了年度总成本，该方法还可以实现60％的乙烷和97％的丙烷回收率，而无需额外的外部制冷。热集成，低TAC，乙烷和丙烷组分的分离效率，