Methanol reformer coupled fuel cells for range extension of electrical systems

Transcription

1 Zentrum für BrennstoffzellenTechnik GmbH Methanol reformer coupled fuel cells for range extension of electrical systems Dr. George Bandlamudi 7th European networking event Düsseldorf,

2 IRMFCs Why they motivate us IRMFCs (Internal reforming methanol fuel cells) have the fundamental advantage explained as follows: 1. Methanol steam reforming reaction (MSR) can be stated as: 2. Ea of C-C bond breaking in alkane HCs > Ea of C-C bond breaking in oxygenated HCs. 3. Methanol (CH 4 O) has no C-C bond, also is an oxygenated HC. 4. Enthalpy of CH 3 OH combustion at 25 C & 1 atm: -727 kj/mol 5. When 131 kj/mol is supplied by the excess heat from a HT PEMFC, facilitating MSR, the reformate produced has 858 kj/mol 6. A HT PEMFC & an MSR operating at 210 C takes advantage of the above features. 7. Result is a high energy density liquid fuel based power generating system. 8. Continuous battery charging provided by IRMFCs (MSR+HT PEMFC) offer unique opportunities. by ZBT all rights reserved. Confidential no passing on to third parties 2

3 IRMFCs - Background science by ZBT all rights reserved. Confidential no passing on to third parties 3

4 Know-how and results from EU RTD Projects Cell Module Voltage [mv] Module Voltage (H2/Air) Module Voltage (Ref/Air) Module Power (H2/Air) Moduel Power (Ref/Air) Cell Module Power [W] Load current density [ma/cm²] Main Achievments: ZBT has developed graphite-compound bipolar plates that can be operated upto 220 C. Membrane electrode assemblies that are stable at 210 C are developed by Advent technologies, Greece. Methanol reformingcatalystiscommerciallyavailableand ischeap. Methanol reformingwas performedin the C range. Reformer & HT PEMFC werebuiltwithgraphitecompound BPPs. Reformer-Fuel Cell Module was developed by ZBT. Project funded by FCH-JU under the project name Development of a Portable Internal Reforming Methanol High Temperature PEM Fuel Cell System with the Project number by ZBT all rights reserved. Confidential no passing on to third parties 4

5 Know-how and results from EU RTD Projects - BPPs 1 2 Fig 1. PPS (Polyphenylene sulfide) Fig 2. PEEK (Polyether ether ketone) Polymers considered Polymer Processing Temp ( C) 1 PP C 2 PPS C 3 PEEK C Solidification Temp a b c BPPs before and after 300 hour cell test at 210 C Fig a. IRMFC Fig b. Methanol reformer side flow plate Fig c. HT-PEMFC side flow plate by ZBT all rights reserved. Confidential no passing on to third parties 5

6 Know-how and results from EU RTD Projects Work in Progress IRMFC Module envisaged 1) 12 Unit Module s Volume: 1,33 litres (2,06 litres with 10 mm insulation) 2) 12 Unit Module s Weight: 1,47 Kgs 3) 20 Unit Module weight: 2,02 Kg 4) 20 Unit Module volume: 1,78 litres (2,9 litres with 10 mm insulation) by ZBT all rights reserved. Confidential no passing on to third parties 6

7 Brief overview of our scientific and technological excellence - 1 Bipolar plates Compound and metal based For LT & HT PEM Production & qualification LT-PEM stacks Design / setup / qualification Pressurized operation Long term / cycling testing HT-PEM stacks Stack development Cooling concepts Material qualification Gasket technologies For LT & HT PEM Processing Qualification MEA technologies optimization of catalysts, membranes layer and coating development analytical tools Flow analysis CFD PIV Catalysts qualification Kinetic investigation Long term testing Toxic substances testing Performance qualification Reactors & heat exchanger Process design Catalyst / carrier integration Construction Materials Certification Climate chamber by ZBT all rights reserved. Confidential no passing on to third parties 7

8 Brief overview of our scientific and technological excellence - 2 Gas Processing at ZBT Fuels: NG, LPG & biogas Reformer efficiency 85 % Nominal power: 1-20 kw el Startup: min CO clean up: PrOx or SelMeth Burner: Condensing technology Features Product level No electrical heater Low-Cost manufacturing & catalysts Patents: EU, US, CA, JP, Korea 1,5 kw el NG HT-PEMreformer system 1,0 kw el LPG LT-PEM reformer module 2,5 kw el biogas LTor HT-PEM reformer system TÜV-certificated by ZBT all rights reserved. Confidential no passing on to third parties 8

9 Short description of type & role of potential partners Potential Applications: 1. Very short term back-up : Typically minutes to hours in a year eg. Computer servers. 2. Short term back-up: Typically < 3 hrs/ day eg. Stationary bad grid areas to power health centres. 3. Long term back up: Typically > 8 hrs/day eg. Stationarypoorgridand off gridareasto power telecommunication towers. 4. Range extension for mobile and automotive power: eg. UAVs, Battery range extenders. Potential Partners: Research Institutes, SMEs, large industries who have been working on Batteries, Battery management systems, Power management systems, UPS based systems, Range extenders, Methanol synthesis, Carbon Capture, CO 2 capture, etc. may discuss possible cooperation. by ZBT all rights reserved. Confidential no passing on to third parties 9

10 Zentrum für Brennstoffzellen Technik Duisburg, Germany Thank You for your attention Contact: Dr. Ing. George Bandlamudi Depatment Fuel Processing ZBT GmbH Carl-Benz-Strasse duisburg Tel: Fax: by ZBT all rights reserved. Confidential no passing on to third parties 10