Improved Nitric Acid Production via Cobalt Oxide Catalysis for use in Ammonia-based Fertilizers - PowerPoint PPT Presentation

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Improved Nitric Acid Production via Cobalt Oxide Catalysis for use in Ammonia-based Fertilizers

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  1. Improved Nitric Acid Production via Cobalt Oxide Catalysis for use in Ammonia-based Fertilizers University of Illinois at Chicago Department of Chemical Engineering CHE 397 Senior Design II March 6, 2012 Thomas Calabrese (Team Leader) Cory Listner Hakan Somuncu David Sonna (Scribe) Kelly Zenger

  2. Today’s Agenda • Recap of Questions from the Second Meeting • Process Flow Diagram • NH3 Oxidation • NO Oxidation • Absorption • Tail Gas Treatment • Energy and Sizing • Ammonia Burner • Columns • Compressors • Heat Exchangers • ASPEN Icarus Cost Simulator • Report Progress • References

  3. Revisiting Last Session’s Questions • Using ammonia as a refrigerant • Ammonia will now be received as a vapor to eliminate the need for evaporation • Replace steam compressors with electric compressors • High-pressure steam will be exported to CHP in return for electricity to drive compressors • Single or dual pressure plant • Dual pressure plant for optimum performance

  4. Overall Process NH3 Oxidation NO Oxidation Absorption Tail Gas Treatment

  5. Inlet Streams NH3 Oxidation NO Oxidation NO2 Absorption Tail Gas Treatment Final Product Treatment Inlet Streams NH3 Oxidation NO Oxidation NO2 Absorption Tail Gas Treatment Final Product Treatment

  6. NH3 Oxidation

  7. NO Oxidation

  8. NO Oxidation Continued

  9. Absorption

  10. Bleaching

  11. Tail Gas

  12. Catalytic Reactor • Catalyst Bed • Volume = 400 ft3 • Diameter = 9.6 ft • Catalyst Depth = 5.5 ft

  13. Column Analysis • Absorption Column • Sizing • Height = 230 ft • Diameter = 13 ft • Trays = 100 • Energy • 130,000,000 Btu/hr • Bleacher Column • Sizing • Height = 72 ft • Diameter = 4 ft • Energy • 1,000,000 Btu/hr

  14. Compressor Analysis

  15. Pinch Analysis

  16. Heat Exchanger Energy

  17. Heat Exchanger Sizing

  18. ICARUS Equipment Cost

  19. ICARUS Installed Costs

  20. ICARUS Yearly Operating Costs

  21. Report Progress Open Report www.che397-nitric-acid.wikispaces.com

  22. Looking Ahead Process Flow Diagram Initial Control Scheme Plant Layout Calculations Refined Economics Report

  23. References http://www.uic-che.org/pinch/ Ullman’s Encyclopedia of Industrial Chemistry. Volume A17. VCH. Towler, Gavin. Chemical Engineering Design. 2008. Perry, Robert and Don Green. Perry’s Chemical Engineers’ Handbook 8th Edition. McGraw-Hill 2008. Felder, Richard and Ronald Rousseau. Elementary Principles of Chemical Processes 3rd Edition. John Wiley & Sons Inc. 2005.

  24. Questions?