Transcript
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UndergroundUnderground CoalCoal GasificationGasification
a road map for successa road map for success
Rohan CourtneyRohan Courtney OBEOBE
Chairman, UCG AssociationChairman, UCG Association
Chairman, Clean CoalChairman, Clean Coal LimitedLimited
November 2010November 2010
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Outline of Presentation
1. About the UCG Association
2. About Clean Coal Limited
3. Short overview of the UCG process
4. Swansea Bay
5. UCG in Europe
6. UCG Worldwide
7. Summary
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About UCG Association
UCGA is the representative body for the global Underground Coal Gasification
(UCG) industry and exists to provide impartial, unbiased information and training
on all aspects of UCG including Carbon Capture and Storage (CCS)
Our Aim - to see the safe deployment of UCG technology worldwide.
Our remit - to educate, encourage and inform of the opportunity that UCG offers
to a world in need of safe, secure, clean, affordable energy
We have established a community for energy professionals, academia and
research and created a scientific and technical base for industry. A wholly
independent non profit organisation, the Association works at an internationallevel engaging with industry, governments, regulators, energy associations,
academia, investors, bankers, environmental agencies and the public to raising
awareness through education and information of the many benefits UCG offers
as a low carbon energy source.
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About Clean Coal Limited (CCL)
CCL is an industry leader in the burgeoning field of Underground Coal
Gasification (UCG)
CCL has an experienced team of recognised UCG experts and has
assembled a portfolio of UCG projects globally
CCL has in-house legal, accountancy and corporate finance expertise
CCL has regional teams based in the UK, US and China supplemented by anumber of consultants
Our Strategy
CCL has a substantial pipeline of geographically and risk diversified
projects
CCLs strategy is to create a premier project pipeline based on three key
principles: Coal resources that are highly suitable for UCG exploitation.
Ready market and distribution network for syngas
Clear CO2 solution
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Animation
Animation
CCL_Animation.wmv
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UCG Standard Facility Layout
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Possible Swansea Bay Configuration
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Geological considerations
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CriteriaMinimum
Acceptable Value
Maximum
Acceptable Value
Coal seam thickness >3m 300m 1500m
Coal rank Lignite Bituminous
Proximity to fault structures >200m depending on site conditions
Proximity to built up areas >500m
Proximity to mines (active and historic). >500m
Moisture content
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Hydrogeology
Water is required because:
1.it is an important reactant
2.it maintains pressure in the reactor
But too much water may:
quench the reaction chamber
reduce product gas quality
reduce or stop syngas production
Enhance contaminant formation.
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Uncontrolled Groundwater Infiltration
Two main settings
1. via natural permeability/ porosity of
surrounding strata and coal seam.
2. enhanced permeability caused by
subsidence.
Need to identify sites with:
thick aquitards above and below
cavity.
overburden with suitable geotechnical
properties (stiffness, yield strength) to
reduce deformation. minimum faults,
joints etc.
some water present in coal and/or
surrounding strata.
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Groundwater Contamination
Known to be a risk:
2 UCG trials in the US resulted in groundwater contamination (out of >30).
Heavy metals, benzene and phenols released.
Expensive, long-term remediation project to repair aquifer.
Main Issues
Inappropriate site selection.
Incorrect operating parameters.
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Site Selection
Select deep coals (>300m)
These maybe in regions of poor
quality groundwater :
Deep coal seams are more likely to
isolate contamination from sensitive
aquifers.
Select regions with minimal faults
Select sites away from sensitive
aquifers.
Select sites with good thick
aquitards surrounding cavity.
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How the Swansea Bay Site Compares
Criteria StatusTarget seam >300m Seam >500m deep
Limited faults & fractures To be determined
Site away from any
sensitive aquifers
Large distance between
known sensitive aquifers*
Limited pathway to
receptors
No pathway to any
receptors
Thick aquitard surrounding
seamTo be confirmed
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End use markets
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Surface Site Cleanup
UCG has limited surface footprint compared with
other technologies:
reduced plant size (e.g. no coal stock piles);
Site restoration will limited to
removing borehole completions
surface piping
surface plant
reduced landscape alteration;
reduced impact on environment;
No large amount of re-landscaping required
Results in a relatively low cost for site
restoration compared with other fossil fuel-
based energy technologies.
After Friedman & Long 2008
Bloodwood Creek UCG Site, Carbon Energy
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Surface Plant Footprint (pilot phase)(ref. UCG trial in Spain)
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Surface Plant Footprint (pilot phase)(ref. UCG trial in Spain)
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Parallel CRIP Long Wall (pilot phase)
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Timetable
Month 0 Month 6 Desk top studies
Month 6 Month 18 Seismic and Bore hole studies
Month 18 Month 30 Site Construction and drilling
-commencement to Pilot Stage
Month 30 Month 36 Testing of Pilot Stage
Month 36- Month 48 Commercial Stage
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Financial
To Pilot Stage US$4m
To Semi Commercial US$90m
To Full Commercial US$150m Total US$244m
500 megawatt thermal power output
30 years
Income starts in Year 4
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Coal available for UCG in Europe
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North Sea 300 bt
Irish Sea 50 bt
Italy 3 bt
Germany 200 bt
Czech Republic 90 bt
11Serbia 80 bt
oland 225 bt
Hungary 50 bt
Ukraine 225 bt
Romania 50 bt
Black Sea 30 bt
Bulgaria 17 bt
Turkey 30 bt
Total European UCG Resource =1,350 bt
Total current estimated European
mining reserves = 254 bt
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Current UCG Projects in Europe
UK13 Licences Issued
Ireland1 roject in Dublin Bay
Hungary1 Research and Development project
underway and 1 further project indiscussion
oland5 Research and Development
rojects in discussion
Bulgaria1 Research and Development roject
in discussion
Ukraine2 Research and Development
projects, 1 of which is in discussion
Slovenia1 Research and Development project
in discussion
Slovakia
2 Research and Development
projects in discussion
Czech Republic2 Research and Development
projects
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UCG around the World
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Regulatory, Public Opinion
Carbon Capture and Storage
Licensing
Health and Safety Environment
Security of Supply
Public Perception
Coal
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Summary and Conclusions
Cheap form of Energy
Security of Supply
Environmentally friendly Huge availability of unmineable Coal (including offshore)
leading to UCG as a major integral part of the world energy
mix
Short period of time to commercial operation Multi uses of syngas
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Thank you
www.ucgassociation.org
www.cleancoalucg.com
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