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An Optimization Model for Water and Energy Network based on Process Simulation for Production of ETBE from Biomass

Modiri, Mahshad | 2018

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50988 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Avami, Akram
  7. Abstract:
  8. Fossil fuel usage caused global warming and other environmental problems. Recently, biofuels are considered as an important alternative. However, the efficient usage of water and energy in their production may accelerate their diffusion. ETBE is a kind of oxidizing fuel additive that can be biologically produced from the ethanol reaction. High water and energy consumption in the production and separation process is still a challenge. In this work, the ETBE production from lignocellulosic feed are considered. Then, the effect of different parameters are investigated by performing sensitivity analysis. In the next step, the optimal pathway of water and energy use in the production of ETBE are modeled with the mathematical programming. Several decision variables such as the possibility of water recycle, the use or non-use of simultaneous reaction and separation methods (such as reactive distillation), and the choice of path between existing states are considered. The use of reactive distillation reduces energy consumption about 20% compared to the conventional ETBE production method. Using the reaction distillation and the water recycle into the fermentation reactor are found the best choices among all other pathways which results in the 17% reduction of water consumption
  9. Keywords:
  10. Biofuel ; Reactive Distillation ; Water Reclamation ; Bioethanol ; Ethyl Tert-Butyl Ether (ETBE)Synthesis ; Water and Energy Optimization

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