S C I E N C E P A S S I O N T E C H N O L O G Y Decentralized hydrogen production from renewable resources Viktor HACKER, Sebastian BOCK, Robert ZACHARIAS Fuel Cell and Hydrogen Systems Group Institute of Chemical Engineering and Environmental Technology Graz University of Technology, Austria ETIP Bioenergy Workshop Emerging Technologies NH Brussels EU Berlaymont, Brussels June 4, 2018 1 www.tugraz.at
Seven Faculties of TU Graz Architecture Civil Engineering Mechanical Engineering and Economic Sciences Electrical and Information Engineering Technical Mathematics and Technical Physics Technical Chemistry, Chemical and Process Engineering, Biotechnology Computer Science and Biomedical Engineering 2
Faculty of Technical Chemistry, Chemical and Process Engineering, Biotechnology Technical Chemistry Inorganic Chemistry Institute of Physical and Theoretical Chemistry Institute for Chemistry and Technology of Materials Institute of Organic Chemistry Institute of Analytical Chemistry and Food Chemistry Biotechnology Institute of Biochemistry Institute of Biotechnology and Biochemical Engineering Institute of Environmental Biotechnology Institute of Molecular Biotechnology Chemical Engineering Institute of Paper, Pulp and Fibre Technology Institute of Process and Particle Engineering Institute of Chemical Engineering and Environmental Technology 3
Decentralized Hydrogen Production: (REformer Steam iron Cycle RESC) Syngas from local biomass after gas cleaning Chemical Looping System Hydrogen Fuel Cell Transport System Integrated Hydrogen Storage Electricity production CEET, TU Graz Heat production CEET, TU Graz Production of pure hydrogen without additional gas cleaning step Carbon capture Sequestration of pure carbon dioxide offgas stream Upcycling of low value biomass feedstock (residues) to superior energy carrier Heat integration for an efficient decentralised and centralised process application Highly efficient on demand electricity production with hydrogen in low temperature fuel cells 4
Fixed Bed Chemical Looping for Hydrogen (CLH) Production: The RESC Process FUEL C n H m, H 2 O CONDITIONING (Reformer) FUEL (Reducing) REACTOR COMBUSTION PRODUCTS CO 2, H 2 O STEAM H 2 O STEAM (Oxidizing) REACTOR HYDROGEN H 2 RESC PROCESS SINGLE REACTOR SYSTEM 5
State-of-the-art CLC: Fluidized-Bed Chemical Looping for Heat Generation COMBUSTION PRODUCTS CO 2, H 2 O DEPLETED AIR O 2, N 2 Me x O y FUEL (Reducing) REACTOR Me x O y-1 AIR (Oxidizing) REACTOR FUEL C n H m, H 2 O AIR O 2, N 2 6
Fixed Bed Chemical Looping for Hydrogen Production: The RESC Process CONDITIONING PURIFICATION FUEL (Reducing) REACTOR FUEL Biomass, Residues GASIFICATION STEAM (Oxidizing) REACTOR FUEL (Reducing) REACTOR STEAM (Oxidizing) REACTOR COMBUSTION PRODUCTS FUEL (Reducing) REACTOR STEAM (Oxidizing) REACTOR FUEL (Reducing) REACTOR HYDROGEN STEAM (Oxidizing) REACTOR STEAM H 2 O RESC PROCESS MULTIPLE REACTOR SYSTEM 7
RESEARCH: Thermodynamic Simulation and Optimization Highly flexible electricity production Renewable Feedstock 110% CONDITIONING Syngas from Biomass 100% HYDROGEN PRODUCTION Heat (e.g. district heating) 15% Pressurized Hydrogen 68% 60% efficiency based on H2 LOW TEMPERATURE FUEL CELL Syngas production from biomass and valorisation of low-cost residues Gas upcycling with chemical looping system Up to 70% fuel utilization of syngas feed in CLH system Pre-pressurized hydrogen release Integrated hydrogen storage On-demand availability 8
RESC PROCESS - Lab prototype system for decentralized hydrogen production Key facts: Up to 12 kw LHV discontinuous hydrogen output Up to 14 kw LHV discontinuous methane feed 20 kg reactive oxygen carrier material Technological Readiness: TRL 4 for conversion of hydrocarbons (CH 4 ) TRL 2-3 for conversion of biomass / biogas 1.8 m length 9
RESC PROCESS - Lab prototype system for decentralized hydrogen production Proof-of-Concept of novel gas purification technology for decentralized applications High purity 99.99 % hydrogen for use in low temperature fuel cells Optimization of system design and analysis of harmful effects on hydrogen quality for with experience of more than 500 operational hours Hydrogen flow Nlmin -1 70 60 50 40 30 20 10 0 0 20 40 60 80 Time / min 10
Material R&D - metal oxide oxygen carrier Evaluation of inert metal-oxide additives for lifetime optimization Pre-industrial scale synthesis methods for batches up to 5 kg In-house accelerated lifecycle testing and characterization 11
RESEARCH - direct high pressure hydrogen allocation High pressure hydrogen production with up to 50 bar release pressure demonstrated in small-scale lab reactor system Pre-pressurization of up to 100 bar will be met within ongoing research projects with considerable energy savings for mobility applications 12
Coming soon Improvement of material stability up to 10 000 cycles. Optimization of hydrogen purity to 99.999% to accomplish high quality standards ISO required for automotive applications. Investigation of the influence of common biogas contaminations on material properties and hydrogen quality. Loading 13
S C I E N C E P A S S I O N Thank you! T E C H N O L O G Y www.ceet.tugraz.at/fuelcells Austrian Research Promotion Agency Viktor HACKER TU Graz, Austria viktor.hacker@tugraz.at 14 TU Graz I Institute of Chemical Engineering and Environmental Technology www.tugraz.at June 4, 2018
11 th International Summer School on Advanced Studies of Polymer Electrolyte Fuel Cells, TU Graz, Austria organized in co-operation between Graz University of Technology and Yokohama National University and internationally recognized experts as lecturers in the field of fuel cell research. www.ceet.tugraz.at/fuelcells Lectures: Tuesday 21 st Saturday 25 th August 2018 Workshop: Thursday 23. August 2018 3 ECTS with written exam. For administrative issues please contact Mrs Brigitte Hammer brigitte.hammer@tugraz.at 15