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Flare Gas Recovery and Transforming Them into Petrochemicals

Khodabandeh Jahromi, Maryam | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 42289 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Sattari, Sourena
  7. Abstract:
  8. By combustion, waste toxic, flammable and corrosive materials are changed to less inviromental problems by combustion. It also creats environmental problems (the most serios problem is caused by burning gases), as well as economic resources are wasted. So several ways was investigated to reduce combustion gases. Mini-methanol plant is one of varios possible ways that can convert these gases in to methanol. So methanol plant was simulated and then pinch analysis was performed on the simulated plant. Performing of pinch analysis caused 94.5 percent and 25 percent reduction in amaunt of hot and cold utility respectively. Before and after pinch analysis, the exergy analysis was performed on methanol plant. Exergy analysis showed that maximum wasting of exergy was occurred in inner uses of heat exchangers and methan reforming system. The exergy destruction was calculated in all of heat exchangers befor and after performing of pinch analysis. Pay back period for the same selling price of methanol (300$) and the same price of feeding gas (2c$) was reduced from 3 years to 4 month by performing of pinch analysis. The purose of reduction in air pollutants is provided by installing mini-methanol plant. Considering the discution on implementing of Kyoto agreement in Iran, we hope that the recovering flare gases become more important
  9. Keywords:
  10. Methanol Production ; Process Simulation ; Exergy Analysis ; Payback Period ; Pinch Technology ; Flare Gases

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