GEORG Geothermal Workshop 2016 Presentation Title: CO2 Capture from air - application of geothermal energy for CO2 emission reduction

1. Capturing CO2 from Air
GEORG Geothermal Workshop, Iceland - 25 November 2016
Christoph Gebald, Director & Founder, contact@climeworks.com

2. CO2-free air
Air
Pure CO2

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Why Capturing CO2 from Air (1)
1. Capture CO2 from air
2. Produce hydrogen with renewable electricity
3. Combine hydrogen and CO2 to form
hydrocarbon fuel (gasoline, kerosene, methane)
4. Use CO2-neutral fuel in existing energy
infrastructure and re-capture CO2
CO2-Neutral Fuels
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Why Capturing CO2 from Air (2)
Paris Climate Convention Calls for Negative Emissions
87% of IPCC modeling scenarios
consistent with 2 °C of global
warming involve large scale
deployments of CO2 removal
from air.

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Climeworks Solution
• Industrial CO2 capture plants extracting CO2
out of ambient air
• Modular design enabling mass production
• 90% of total energy demand supplied by low-
grade heat (solar/geothermal/waste)
• Minimal carbon footprint: only 2-3% side
emissions (CO2-eq)
• Worldwide first company supplying
atmospheric CO2 to customer

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Climeworks Technology
Ambient
air
CO2 capture
CO2 Release
CO2-free air
Pure CO2
Heat at
100°C
Air is driven through system, CO2 is bound
chemically to filter material.
System’s pressure is reduced, heating to
100°C; release of concentrated CO2.
Cooling to ambient temperature,
CO2 capture is re-started.
Commercial plants contain parallel modules for
continuous CO2 delivery
9 patent families pending
Developed in collaboration with
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Product
• CO2 Capacity:
today: 25’000 t/y
12 months: > 25’000 t/y
• Thermal energy demand (at 100°C)
target: 1’500-2’000 kWh/t CO2
• Electricity demand (CO2 at 1bar):
target: 200-300 kWh/t CO2
• CO2 purity: 99.9% v/v
• Modular, standalone, turnkey

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Climeworks in Iceland
Climeworks offers low-grade heat driven, location
independent, scalable CO2 capture from air
Iceland offers sites with renewable heat and
favorable CO2 sequestration potential
Opportunity for
Timely and Crucial
Negative Emission
Technology
Climeworks seeks partners in Iceland for
Renewable Energy Supply CO2 Sequestration

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Climeworks AG
Birchstr.155 • 8050 Zürich • Switzerland • +41 44 533 29 99
contact@climeworks.com • www.climeworks.com