1. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Steam Reforming of Natural Gas for PEM Fuel Cells Center for Solar Energy and Hydrogen Research Baden-Württemberg Stuttgart - Germany Dr.-Ing. Jürgen Rheinländer Dipl.-Ing. Tonja Marquard-Möllenstedt Dr. Werner Lehnert Fuel Cell Research Symposium Modelling and Experimental Validation ETH Zurich - 18/19 March 2004

2. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Steam Reforming of Natural Gas for Fuel Supply to FC-PEM Reforming: CH 4 + H 2 O ==> CO + 3 H 2 C 2 H 6 + 2 H 2 O ==> 2 CO + 5 H 2 C 3 H 8 + 3 H 2 O ==> 3 CO + 7 H 2 Shift (HT, LT): CO + H 2 O ==> CO 2 + H 2 Preferential Oxydation:CO + O 2 /2 ==> CO 2 and:H 2 + O 2 /2 ==> H 2 O

3. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Steam Reforming of Methane educts, conversion ζ and products

4. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration IPSEpro’s Equation Oriented Solver Implicit equations for chemical equilibrium of reaction reforming shift

5. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration IPSEpro Simulation of Steam Reforming (special case of methane only in NG)

6. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Steam Reforming of Methane Impact of Temperature (S/C = 3; p = 1 bar) IPSEpro ® modelling HSC-Chemistry ® modelling

7. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Conversion of LHV from Feed+Fuel to Reformate

8. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Changes of Gas Composition with Process Steps

9. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Conclusions and Outlook thermodynamically correct modelling of SR of NG introduced into commercial Integrated Process Simulation Environment IPSEpro validation of component modelling through laboratory research on SR and FC operation at ZSW modelling of FC_PEM sub-system underway including cooling circuits and enthalpy recovery from cathode exhaust air flexible tool for optimal design of heat integration performance simulation of operation time series component library in IPSEpro for integration of SR-FC system into utilisation environment (power plant, building, industrial process, etc.) integration of technical performance simulation with economic life cycle analysis

10. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Outlook Technical and Economic Performance Simulation of Fuel Cell Systems in Co-generation Applications

11. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration

12. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Heat Utilisation from FC_PEM for A/C Process Annual Energy Performance for Mediterranean Site Contributions from FC_PEM via TES to thermal A/C process control by power demand profile back-up from boiler

13. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration Heat Utilisation from FC_PEM for A/C Process

14. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration EcAn of FC_PEM Project for Electricity and Process Heat

15. Electro- chemical Process Engineering Rheinländer SR_NG Chemical Process + Heat Integration EcAn of FC_PEM Project for Power and Process Heat