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KIER Coal-to-liquid (CTL) Project’s
Status and Prospect
Hak-Joo Kim, Hotae Lee, Dong-Hyun Chun, Jung-Hoon Yang,
Jung-Il Yang, Jai Chang Hong and Heon Jung
Korea Institute of Energy Research (KIER)
KIER CTL Project summary
• 10 ton/day coal gasifier
• Coal gas cleaning unit including desulfurization unit and filter
• Liquefaction reaction system of 15 barrel/day
• Pilot plant design package of 300 barrel/day
Contents
Objective
• Develop indirect coal liquefaction process to convert 10 tons of coal per day into 15 barrels of coal liquid
liquefaction
ICLICL
gasoline
diesel
naphtha
separation
gasifier cleaning
HRSG
coal Syngas(CO+H2)
Gas Turbine
Sulfur/particulate
Oxygensteam
IGCC
Steamturbine
electricityelectricity
Korea chose Indirect Coal Liquefaction
gasifier(1 ton coal/day)
gasifier(1 ton coal/day)
KIER Experimental gasifier
Coal 10 ton/day
Height 7m
Diameter 1.3m
Slurry-fed entrained bed gasifier up to 30 atm
Being scaled-up
Coal gas cleaning (filter)
membrane
Existing ceramic filterExisting ceramic filter
Air b
ack p
uls
e
Newly developed
filter
Newly developed
filter
Fine dust difficult to be removed
Double membrane
Korean desulfurizingagent
29.2ASTM attrition [%]
16.3area [m2/g]
0.91density [g/cm3]
84Size [micron]
ZAC-32Name
Coal gas cleaning (desulfurization)
KIER Fe liquefaction catalyst
§ SEM Images
0 5 10 15 2 0 2 5 30 35 40 45 5 0
-1 .5
-1 .0
-0 .5
0 .0
log(W
n/n
)
n
α = 0.91
• Chain growth probability
Cold reactor
0.02 bbl/day
0.2 bbl/day
15 bbl/day
a) b)
C)
d) e)
f) g) h)
Gas distributer B type
Liquefaction reactor
0.02 bpd liquefaction reactor run results
Time (hr)
0 10 20 30 40 50
Con
vers
ion (
%)
0
20
40
60
80
100
KIER BM 10BCOMMERCIAL
Catalyst : 720g, Mineral Oil : 2,880gReaction: 265 oC, 25 bar
24 l/min (H2/CO ratio =1)
KIER Fe catalyst’s productivity: 0.23 g oil/gcat hr
0
20
40
60
80
100
Sele
cti
vit
y [
%]
0.00
0.05
0.10
0.15
0.20
0.25
[g/g
(cat) -h
r]
LiquidC5+
C2-C
4CH
4
Commercial
KIER Bench Mark
Pro
ductiv
ity
0.2 bbl/day unit has been tested
- Connected to 1 ton/day coal gasifier
- Scale-up design variables are obtained.
- Pressurized system will be operational soon.
-20
0
20
40
60
80
100
0.0 5.0 10.0 15.0 20.0 25.0
CO to CO2 H2 Conv. (Overall) CO Conv (Total)
0.145 bpd0.145 bpdScaleScale
63.1%63.1%Oil yieldOil yield
0.19 0.19 g/gg/gcatcat··hhProductivityProductivity
714.2mol/10.00kg714.2mol/10.00kgOil/WaxOil/Wax
Plans
• 2011: Finish construction of 15 bpd CTL process
• 2011: Complete design package of 300 bpd pilot CTL plant
• 2012-2013: Combining KIER 15 bpd FT reactor and a low-rank coal gasifier (SK Energy)
• 2014: 300 bpd pilot CTL project begin
• With or without gasifier
• POSCO SNG plant’s slip stream