Our future of Clean Coal CO2-free power plants by rraul

VIEWS: 30 PAGES: 23

									Our future of Clean Coal: CO2-free power plants




                                                             Wolfgang Dirschauer
                                                              Vattenfall Europe




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe          1
CO2-emissions – a global perspective




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   2
The reality of electricity generation
Contribution of primary energy to global electricity production 2004
                                                                                others
                                                                      nuclear   2,1%
                                                                      15,7 %




                                                              hydro
                                                             16,1 %                      fossil
                                                                                          fuels
                                                                                         66,1%

10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe             3
Our goal
 Develop a reliable and profitable coal-based electricity and heat
  generation while complying to ambitious and long-term global
  climate targets
 Twin tactics: Efficiency and Clean Coal / CSS
 „As soon as legally, technologically and economically feasable,
  all our plants will be carbon-free and climate-neutral. That means
  we will build new plants carbon-free and retrofit or close down
  old plants “ (Dr. Klaus Rauscher, CEO Vattenfall Europe, FAZ 21.03.2007)




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   4
 Why Carbon Capture and Storage - CCS ?
 The world – especially the growing economies of the newly
  industrializing countries - will not stop using fossil fuels
 Coal is the one fossil fuel which combines the greatest potential
  with the strategic optimum
 Coal may face a renaissance as the „fuel of choice“ of global
  industrialization, non-power business will grow
 Carbon Capture and Storage (CCS) is the only technology with
  the potential to significantly reduce CO2-emissions while still
  using fossil fuels, especially coal
 CCS is therefore a key technology for developing a climate-
  friendly energy system based on the realities of fossil fuel
  potentials




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   5
Fuel – generation - storage – the abstract
 CO2 is captured either pre or post
  combustion within the power plant
 CO2 is purified, compressed, transported
  and stored in deep poriferous rock
  formations (gas and oil fields, saline
  aquifers)




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   6
Possibilities for storage and usage




 Storage:
 • Saline Aquifers
 • Depleted gas and oil fields
 Usage:
 • Enhanced Gas/Oil Recovery


10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   7
 CCS – the three links of the chain

                       Capture                                           Transport                  Storage

   • Development of                                          • Transfer of known     • Test the concepts
     technological                                             concepts
     concepts                                                                        • Determine the
                                                             • Development of          potentials and
   • Cost-reduction                                            infrastructure          accessability
   • Verification and test-                                                          • Analysing
     runs                                                                              environmental risks
                                                                                     • Creating trust
                                                                                     • Develop the legal
                                                                                       framework




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe                 8
Efficiency and CCS – partners, not rivals
 The expected net-efficiency for coal-fired power plants is 50-53 %
  in 2020
 CCS is being developed on a parallel timeframe
 More efficiency in power plants is needed to compensate for the
  systemic energy loss in the CCS-chain




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   9
Comparison of CCS Technologies




source: European Platform for Zero Emission Power Plants - ZEP


10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   10
Post-combustion




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   11
Pre-combustion (IGCC)




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   12
O2/CO2 combustion - Oxyfuel
                                      process
                                       steam
                condensate




      economiser




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   13
 Why Oxyfuel Technology ?
Our reasons for Oxyfuel:
• Power plant process with high
  efficiency potential
• Highest capability in CO2-
  separation
• Comparable to conventional
  water-steam power plant
  processes
• High availability
• robust estimates for upfront
  investment and operational costs,
  based on conventional power
  plants

10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   14
The roadmap to our future CO2-free power plant
                      2004                                     2008                       2015                2020



                          Test-Installation                      Pilot-Plant              Demo-Plant            Commercial
                                                                                                                Power Plant
                                0,5 MWth                            30 MWth               300-600 MWth            >1.000 MWth



            • Testing of                                • Integration of          • Optimise the       • Competitive
              components                                  components                efficiency           electricity
                                                                                                         generation costs
            • Confirm science                           • Optimise the            • Integrate into
              and tech base                               installation              transport and
                                                                                    storage system
                                                        • Validate the ccs
                                                          technology chain




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe                   15
„Schwarze Pumpe“ – the actual site




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   16
Our Oxyfuel Pilot Plant




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   17
   The model (view from south/east )

    ESP                                                              Boiler house



                                                                       Cooling
     FGD                                                               towers



    FGC                                                                ASU




                                                                      Switchgear
CO2-plant                                                             building




   10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   18
    The actual building site (status: 13th of august 2007)
                                      Steel boiler
                                      structure
                                                                                       Coolingwater pump
Foundations                                                                                 Cooling tower
for ESP,
Stack,
FGD,
FG-                                                                                    Switchgear
Cond.                                                                                     building




CO2 plant                                                             Air separation
                                                                         unit (ASU)

    10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   19
The crucial question: the price of climate policy

                                                                  Our target:
                                                                  20 € t/CO2




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   20
The risks
 The cost of developing and implementing new technologies
 The future of ETS as a global instrument
 The timely development of a global post-2012 climate regime
 Legal und regulatory framework
 Public opinion („double-phase-out hysteria“)




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   21
       Thank you for your attention !




10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   22
Key Messages
• Vattenfall is determined to be a CCS frontrunner. CCS will be our best practice for fossil
  fuel fired power plants asap.
• CCS is crucial for fossil-fuel dependant developing countries and the growing
  economies of China and India. This is all the more important considering the potential
  for coal in industrial processes, especially coal-to-liquid.
• There is no silver bullet to master the climate change challenge. But no scenario short of
  a climate world government (or dictatorship) comes up with a world energy system NOT
  extensively using coal (and gas/oil). Efficiency gains are indispensible, but also
  insufficient to make up for the growing energy needs of a growing world populace and
  world economy. CCS is a necessary part of a mix of instruments. It can serve as a
  crucial transitory technology to bridge the gap to a renewables-based energy system. It
  might also be a bridge to future technologies enabling us to make use of the CO2.
• A scenario with ambitious and strict emissions restrictions but without CCS could
  seriously endanger Germany’s energy security and international competitiveness.
  Depending on the nuclear energy issue and the market-readiness of renewables, a
  phasing out of coal in the German energy mix would endanger our industrial basis and
  cause massive economic and social disruption. On a global level, without CCS coal (and
  other fossil fuels) will most likely be used nonetheless, only then with a definitely more
  serious impact on climate change.


10.10.2007 | CCS | Wolfgang Dirschauer | Vattenfall Europe   23

								
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