SIMULATION OF NATURAL GAS INFRASTRUCTURE FOR CNG AND LPG RECOVERY - A CASE STUDY

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Abstract

This research is a case study focused at presenting a framework upon which design methods can be followed to achieve an effective natural gas gathering, processing and fractionation process. It also reveals the incentive for flare reduction while encouraging domestic consumption of Liquefied Petroleum Gas (LPG) and the use of Compressed Natural Gas (CNG) for electricity generation. The simulation of the plant was done using ASPEN HYSYS version 11.0 with the Peng Robinson equation of state as the thermodynamic fluid package. The gas was gathered from two flow stations 0.8km and 6.4km respectively from the proposed processing field. Since the gases from the region under study is a sweet with negligible sulphur content there was no need for a sweetening process. The Tri-Ethylene Glycol (TEG) was used for the gas dehydration, then fractionators were simulated to produce LPG and CNG of high purity. Results from the HYSYS report shows good energy and mass balance as well as efficient gas flow throughout the processing cycle. The resulting volume of CNG and LPG is substantial to power several households and supply them with cooking gas respectively. Keywords: Natural Gas Simulation, Liquefied Petroleum Gas, Compressed Natural Gas, Computer aided Design.
CNG和LPG回收天然气基础设施的模拟-一个案例研究
本研究是一个案例研究,旨在提出一个框架,在这个框架上可以遵循设计方法来实现有效的天然气收集、加工和分馏过程。它还揭示了减少火炬的激励措施,同时鼓励国内使用液化石油气(LPG)和使用压缩天然气(CNG)发电。采用ASPEN HYSYS 11.0版本,以Peng Robinson状态方程为热力学流体包,对该装置进行了仿真。天然气分别从距离拟建处理场0.8公里和6.4公里的两个流站收集。由于所研究地区的气体是一种硫含量可以忽略不计的甜味,因此不需要进行增甜过程。采用三乙二醇(TEG)进行气体脱水,然后模拟分馏装置生产高纯LPG和CNG。HYSYS报告的结果显示,在整个处理周期中,具有良好的能量和质量平衡以及高效的气体流动。由此产生的压缩天然气和液化石油气的数量足以为几个家庭供电,并分别为他们提供烹饪用气。关键词:天然气仿真,液化石油气,压缩天然气,计算机辅助设计
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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