Underground Coal Gasification CRF Leeds 22 nd April 2009 Underground Coal Gasification Technology Overview and UK Initiatives LEEDS, 22nd APRIL, 2009 Kenneth Fergusson Senior Adviser UCG Partnership PRESENTATION TO COAL RESEARCH FORUM (Combustion and Advanced Power Generation Divisions )
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Underground Coal Gasification Technology Overview and UK
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Underground Coal Gasification CRF Leeds 22nd April 2009
Underground Coal Gasification
Technology Overview and UK
Initiatives
LEEDS, 22nd APRIL, 2009
Kenneth Fergusson
Senior Adviser
UCG Partnership
PRESENTATION TO COAL RESEARCH FORUM
(Combustion and Advanced Power Generation Divisions)
Underground Coal Gasification CRF Leeds 22nd April 2009
injection gas
discharge
The UCG Process
distillation
and
predrying
zone
recovery
zone
oxidation
zone
outgased
space
Key Variables: 1. The Coal – Nature, seam thickness, strata
2 Depth, - Hydrostatic Pressure
3. Oxidant – Oxygen content
Underground Coal Gasification CRF Leeds 22nd April 2009
Examples of UCG Syngas composition
0%
20%
40%
60%
80%
100%
Lis
ich
an
sk
Go
rga
sH
oe
Ck I
IBA
ng
ren
Go
rlo
vka
Lis
ich
an
sk
Ha
nn
a I
VA
Ho
e C
k I
Yu
zh
no
-ab
insk
Lis
ich
an
sk
Le
nin
sk-K
uzn
ets
Kru
tova
An
gre
nH
oe
Ck I
IIA
Go
rga
sX
iya
ng
Lis
ich
an
sk
Ma
rsH
an
na
IG
orl
ovka
Ha
nn
a I
VB
Ha
nn
a I
IDH
an
na
III
Go
rlo
vka
Ha
nn
a I
IAY
uzh
no
-ab
insk
Ha
nn
a I
IBR
aw
lins 1
BH
an
na
IIC
Pri
ce
tow
nX
iya
ng
Po
dm
osko
via
Po
dm
osko
via
Ch
inch
illa
Go
rlo
vka
Ho
e C
k I
IIB
Go
rga
sG
orl
ovka
Ma
rsR
aw
lins 1
AC
en
tra
lia A
Su
ncu
nR
ocky M
tn 1
BH
oe
Ck I
IAR
ocky M
tn 1
AA
lco
risa
Su
ncu
nL
isic
ha
nsk
Go
rlo
vka
Ce
ntr
alia
BM
ars
Liu
zh
an
gX
inh
eT
hu
linR
aw
lins 2
Xie
zh
ua
ng
Liu
zh
an
gX
inh
e
Pro
du
ct
ga
s,
vo
lum
e%
(d
ry)
0
2
4
6
8
10
12
14
Ga
s c
alo
rifi
c v
alu
e,
MJ
/m3 (
dry
, S
TP
)
Other
Carbon dioxide
Hydrogen
Carbon monoxide
Methane
Calorific value
with AIR with OXYGEN
World Sites
H2
COCH4
CO2
Other
Gases
eg N2
Underground Coal Gasification CRF Leeds 22nd April 2009
UCG - Energy Recovery Comparison
0
200
400
600
800
1000
1200
1400
En
erg
y i
n P
J
UCG Mining CSG
Energy Extraction by Method for Typical 12 km2
Deposit
Coal
Hydrogen
CO
Methane
UCG syngas Underground Coal
Seam Gas mining
Energy extraction by method for a typical Australian 12km2
coal deposit
CH4
CH4
CO
H2
Coal
Underground Coal Gasification CRF Leeds 22nd April 2009
CO2 Capture Advantages of UCG
• Pre Combustion Capture
• High CO2 Partial Pressure
- smaller plant
- physical absorbents possible
• Low-cost option for partial CO2 removal
- methane can remain in syngas
- or methane can be shift converted to
Co2 and H2
Underground Coal Gasification CRF Leeds 22nd April 2009
• 1866 Sir William Siemens suggests UCG
• 1888 D Mendelev proposes directional drilling
• 1909 First UK Patent Granted
• 1912 Sir William Ramsay suggest Co. Durham Trial
• 1913 Lenin writes article in Pravda
• 1933 – 41 UCG Trial in USSR
• 1946 – 1996 Operations in USSR
• 1949 – 1960 Early European Trials
• 1958 – 1959 NCB Trial conclude At Newman Spinney
Milestones of UCG Development
44 years of Commercial Operation
100 MW Steam Turbine
Angren, Uzbekistan
Underground Coal Gasification CRF Leeds 22nd April 2009
Milestones of UCG Development• 1972 - 1989 US Programme of
Underground Coal Gasification CRF Leeds 22nd April 2009
UCG Licensing Procedure
• Licence applications can be made at any time for any
location
( i.e. not in blocks or rounds as for Oil & Gas)
• Applications are publicised ( to promote
competition)
• The CA and Oil & Gas division liaise to co-ordinate
UCG and CBM sites
• Licensing procedures on shore are akin to coal
mining
• Offshore other factors are considered – shipping,
windfarms, protected areas, military exclusion zones
Underground Coal Gasification CRF Leeds 22nd April 2009
Status of UCG Licensing in the UK
• First UCG licence application by :
Thornton New Energy
- for an area in the Firth of Forth
- publicised in October 2008
- conditional licence granted February 2009
• Second UCG licence application
Clean Coal Limited
- for five coastal areas of England and Wales
- publicised December 2008
Underground Coal Gasification CRF Leeds 22nd April 2009
UCG is an exploitation technology for indigenous coal, which is ready for use, has significant advantages in terms of cost, security of supply and CO2 capture and storage.
It is being evaluated commercially in coal countries around the world, mostly in the private sector.
First movers are in place to exploit UCG as a profitable commercial clean coal opportunity
Concluding Remarks
Underground Coal Gasification CRF Leeds 22nd April 2009
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