Feasibility study of preventing the waste of light hydrocarbons in the flare refinery gas using computer simulation

Orouji, Majid (2017) Feasibility study of preventing the waste of light hydrocarbons in the flare refinery gas using computer simulation. Masters thesis, University of Mohaghegh Ardabili.

Text (بررسی امکان جلوگیری از هدرروی هیدروکربن‌های سبک در گازهای فلر پالایشگاه به کمک شبیه‌سازی کامپیوتری) Majid Orouji.pdf Download (1MB)

Abstract

Nowadays, with the expansion of the oil and gas refining industry in the world, the gases burned in the flare of these industries have increased significantly. The gases burned in the flare release toxic gases, cause noise pollution and many environmental problems. By recovering of the flare gases, which include light / heavy hydrocarbon and acid gases, in addition to reducing pollution, it is possible to achieve high economic benefits by producing fossil fuels and liquid naphtha. In this dissertation, the flare gas recovery system for Imam Khomeini Refinery at Shazand was simulated. This unit includes cooling, compression, sweetening and gas stabilization units, each section being defined and simulated with the help of the Aspen Hysys software V9. The simulation results showed that using appropriate equipments could produce more than 70 cubic meters of naphtha and 2200 cubic meters of gas per hour. In addition, by collecting more than 290 kg / h of hydrogen sulfide, its release in the environment is prevented. Eventually, the economic analysis of the process showed that it could be achieved by applying appropriate conditions to an annual profit of about $ 256 million Keywords: Flare Gas Recovery, Gas Sweetening, Stabilization Tower, Simulation

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