Download - The Role of Chemistry in Innovation Chemistry for Future Energy Supply K. Wagemann, DECHEMA e.V
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The Role of Chemistry in InnovationThe Role of Chemistry in Innovation
Chemistry for Future Energy SupplyChemistry for Future Energy Supply
K. Wagemann, DECHEMA e.V.
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Two hot topics in the present political discussions:
Energy Supply
Climate Change
(Adaptation & Mitigation)
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Energy in the SusChem Implementation Action Plan
• Energy– Alternative energy sources
• Photovoltaic• Fuels production from biomass• Fuel cells• (Metal)nanoparticles as fuel• Wind power
– Energy conservation• Efficient lighting• Insulation
– Energy storage• Batteries• Gas storage• Supercapacitors
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Energy in the SusChem-Deutschland IAP
• Photovoltaics• Fuel cells• Efficient use of energy - inorganic LEDs• Efficient use of waste heat from industrial plants• Li-Ion batteries for stationary and mobile applications• Super caps• H2 production and storage• Exhaust gas treatment and catalysis• Light weight materials• Biobutanol
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Chemistry and Energy
• German Coordination Group „Chemical aspects of energy research“:
• DECHEMA - Gesellschaft für Chemische Technik und Biotechnologie e.V.
• DBG – Deutsche Bunsen Gesellschaft für Physikalische Chemie e.V
• GDCh – Gesellschaft Deutscher Chemiker e.V.• DGMK – Deutsche Wissenschaftliche Gesellschaft
für Erdöl, Erdgas und Kohle e.V.• VDI-GVC – VDI-Gesellschaft Verfahrenstechnik
und Chemieingenieurwesen • VCI – Verband der Chemischen Industrie e.V.
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Position Paper
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Position PaperThesis
• The demand for chemical solutions will increase:– Fuel cells: Catalysts, Electrolytes, Membranes– Solar cells: Organic, Polymeric, Easy to Process Systems– Batteries: Electrodes, Electrolytes– Thermoelectrica: Nanostructured Materials
– CO2-Sequestration: Absorption, Chemical Conversion
– Heavy Oils and Coal (and Biomass): Conversion to Fuels
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Energy Supply Fuels
Bioenergy
Photovoltaics
Fuel cells
Thermoelectrics
Collectors
H2-Production
Energy storage
Mobile batteries
Stationary batteries
Supercaps
Chemicals
Energy efficientproductionprocesses
Catalysis
Microreaction techn.
New reaction media
Process integration
OLEDs
Superconductors
Lightweight materials
Thermal insulationEfficient useof energy
The role of chemistry
CO2-Utilisation
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Chemistry has a role for the future energy supply!
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Backup
Backup
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Chemistry-related CO2-Emissions
Numbers of 2004, Source: Ministry of Economics and Technology
Energy
Industry (total)Chemistry
= 861 Mio. t CO2
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Production of Hydrogen
• Alternatives– Direct thermal water splitting (without catalyst: T > 2.500°C)
• catalytic
• redoxcatalytic
– Photocatalytic water splitting at solid surfaces– Biomimetic photosystems in liquid phase (Ru-Systems)– Biohydrogen
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Photovoltaics
• Thin film solar cells (a-Si, µCSi, CdTe ...)
• Multibandgap-cells
Alternatives:
• Organic semiconductor systems
• Photoelectrochemical cells(Grätzel-Cells)
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Materials for Collectors
• Coatings today:– Black Chromium
– Black Nickel
Efficient, but processing (galvanisation) not environmentally benign
• Coatings Future:– Al2N3
– Carbides
– TiNOx
Better efficiency (absorption and reflection)
but processing costs high
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Thermoelectrical Devices• Principle
– Materials: Bi2Te3, Bi2Se3, Sb2Te (RT) / PbTe-, SiGe-Alloys (550 – 800 K)– Energy Source: In general lost heat– Applications:
• Energy independent micro sensors (“self-powered sensors”)• “self-powered micro-devices”• Auxiliary power systems in automotives• Cooling of Photovoltaic devices
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Thermoelectrical Devices
Future: Higher Efficiency using nanostructured materials
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CO2-Sequestration& Utilisation
Carbon Capture and Storage Technologies
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CO2-Sequestration
• Research Topics (Chemistry related)– Coal Gasification
– CO2-Capture• Absorption• Membranes
– Materials / Corrosion(CO2(l) / H2O / High Salt Concentration)
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CO2-Utilisation
• Energy Storage Systems• Dry Reforming
• CO2 as C1-Building Block
• Artificial Photosynthesis• Microalgae–Cultivation• “Better Plants”
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CO2-Utilisation
• Energy Storage SystemsCO2 + H2 CH3OH + H2O
• NEDO-Project, Japan (since early 90ies)
Japan
Australia
CO2 MeOH
ZnCrO-catalyst
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CO2-UtilisationSteamless Carbon Dioxide Reforming
(Dry Reforming)
• CO2 + CH4 2CO + 2H2
• Idea: Exploitation of remote gas fields (stranded gas)
• Discussion Platforms:– Eranet Chemistry– SusChem-D: September Workshop
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CO2-UtilisationArtificial Photosynthesis
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CO2-UtilisationArtificial Photosynthesis
• Light harvesting supramolecular components (Balzani, Bologna)
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CO2-UtilisationArtificial Photosynthesis
• General Problems– Thermal – Stability– Photo(oxidative)-Stability– Light-Harvesting
• European Network: Solar-H (http://www.fotomol.uu.se/Forskning/Biomimetics/solarh)
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CO2-UtilisationCO2 as C1 Building Block
• Problem: Inertness
O
COR1R2
C
OR2R1O
R3 R4
O
COR1R2O
CO2
Acetales
CarbonatesEster
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CO2-UtilisationCO2 as C1 Building Block
Activation by Carboanhydrase:
CO2 + H2O HCO3- + H+
Aktive Center of Carboanhydrase
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CO2-UtilisationActivation of CO2
• Active Species: CarbamateM. Antonietti, Angew. Chemie 2007, 119, 2773 ff
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CO2-Utilisation Biorefineries
• Bioethanol/BioDiesel (1st Generation)• Biofuels 2nd Generation
– BTL ( FT-Catalysts)– Lignocellulose Ethanol
• Biogas• Chemical Building Blocks
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CO2-Utilisation Biogas
One Alternative: Zinkoxid
H2S+ZnO H2O+ZnS
200-400 °C (!)
H2S-content: ppb