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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)
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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
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
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
Overall Process NH3 Oxidation NO Oxidation Absorption Tail Gas Treatment
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
Catalytic Reactor • Catalyst Bed • Volume = 400 ft3 • Diameter = 9.6 ft • Catalyst Depth = 5.5 ft
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
Report Progress Open Report www.che397-nitric-acid.wikispaces.com
Looking Ahead Process Flow Diagram Initial Control Scheme Plant Layout Calculations Refined Economics Report
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.