Development progress of energy-saving CO2 capture technology utilizing solid sorbent
Wyoming/JCOAL Workshop 2017 September 21st-22nd, 2017
Takeshi Okumura Kawasaki Heavy Industries, Ltd.
© 2017 Kawasaki Heavy Industries, Ltd. All Rights Reserved 2
TOPICS
About Our Company
The KCC (Kawasaki CO2 Capture) System
KCC Bench-scale Test
Future Development
© 2017 Kawasaki Heavy Industries, Ltd. All Rights Reserved 3
History of Kawasaki
1878 Shozo Kawasaki, the founder opens Kawasaki Tsukiji Shipyard (Tokyo).
1902 Finishes construction on Dry Dock at Kobe Shipyard.
1926 Constructs Eitaibashi Bridge, Tokyo.
1941 Starts production of Hien fighter.
1975 Begins production of motorcycles in the U.S.
1976 Develops GPS200 gas turbine generator.
1981 Delivers the first LNG carrier built in Japan.
1996 Excavation on the Tokyo Bay Aqua-line is completed by the world's largest shield machines
2001 Opens state-of-the-art, fully integrated rolling stock factory unique in the U.S.
2004 Ships first 700T train to Taiwan High Speed Rail
© 2017 Kawasaki Heavy Industries, Ltd. All Rights Reserved 4
Overview
¥1,518 billion
Employee
Global Network
Net Sales
35,127 people
(As of March 31, 2017)
93 Subsidiaries
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Expansion into the world; “Global Kawasaki”
Australia
Brazil (4 sites)
Canada China (21 sites)
Germany (2sites)
India (3 sites)
Indonesia (2 sites)
Korea (2 sites)
Malaysia
Netherlands (2 sites)
Philippines (2 sites)
Singapore
Thailand (2 sites)
UK (3 sites)
USA (6 sites)
UAE
Japan (44 sites)
Russia
Taipei
Offices / Subsidiaries
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Ship & Offshore Stracture
6.7%
Rolling Stock 9.0%
Aerospace 21.7%
Gas Turbines & Machinery 15.9%
Plant & Infrastructure Engineering
10.5%
Motorcycle & Engine 20.6%
Precision Machinery 10.2%
Other 5.0%
Net Sales Business Segment (Year ended March 31,2017)
¥ 1,518 billion
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Technical Background of CO2 Capture
Aircraft cabin Office air-conditioning
Submarine life support, etc.
CO2 Concentration : 1000-5000 ppm
Original solid sorbent : Amine-impregnated porous material
Application to a high concentration CO2 gas (e.g., 13%)
KCC (Kawasaki CO2 Capture)
Kawasaki has developed the solid sorbent technology for more than 30 years
<Closed/Semi-closed space>
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Features of KCC
CO2 desorption at low temperature (e.g., 60 oC) Utilization of low-temperature waste heat
Exhaust gas
Sorbent
Adsorption Desorption
Sorbent
Steam
CO2
Amine
Sorbent
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Background of KCC Moving-bed System CO2 capture unit for air conditioner: Fixed-bed system
Dioxine adsorber for waste disposal center: Moving-bed system
KCC moving-bed system
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The KCC Moving-bed System
Advantages of moving-bed system: - Compact equipment (smaller than fixed-bed system) - Easy filling up / exchange of sorbent during operation - Follow-up capability to CO2 load variation
Solid sorbent
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KCC Bench-scale Test Facilities
Coal firing facility
Located at Akashi works, KHI Constructed adjacent to powdered coal firing facility
Fan
KCC bench-scale test facilities
Fixed bed Moving bed
Co
al-fire
d fu
rna
ce
Coal hopper
Flu
e g
as co
ole
r
Dust collector
Desu
lfuriza
tion u
nit
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Fixed-bed Bench Test Plant
Fixed bed Bench-scale test plant
(10 ton-CO2/d scale)
0
0.2
0.4
0.6
0.8
1
0 5 10 15 20
Adsorption time [min]
Rati
o o
f C
O2
concentr
ati
on
Cout/
Cin
Case1
Case2
Case3
Breakthrough curves
2nd Post Combustion Capture Conference September 17th-20th, 2013, Norway
The fixed-bed system has been examined since 2010
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Moving-bed Bench Test Plant
<The bench-scale test plant>
Adsorption Reactor
Desorption Reactor
(20 m height)
sorbent Dryer
The moving-bed system has been examined since 2012
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Improvement of Moving-bed System
• Development of high-strength sorbent (Patent : PCT/JP2017/010143) • Improvement the equipment not to crush sorbents
After improvement
<Part of the equipment>
Phase1 Phase2 Phase3
Amou
nt o
f pul
veriz
atio
n
Decrease pulverization from 100% to 3% 100
11 3
Pulverization is effectively restrained
Pulverized sorbent remained
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Test Condition
Exhaust gas flow rate 820 Nm3/h CO2 concentration of adsorption gas 13 % Exhaust gas temperature 35 oC Steam temperature 60 oC
<Representative Test Conditions>
<System Chart of the Test Plant>
Condenser Heater
Exhaust gas
Water
Boiler Capture pump
Fan Condenser Heater
Air
Fan
CO2 Desorption Reactor
Sorbent Dryer
Adsorption Reactor
Solid sorbent
Steam
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Typical Results (Adsorption)
• CO2 was adsorbed from coal-combustion exhaust gas • The amount of adsorbed CO2 was about 3 t/day
0
20
40
60
80
100
0
1
2
3
4
5
0 1 2 3
CO
2 co
ncen
trat
ion
(%)
Amou
nt o
f ads
orbe
d C
O2
(t/d)
Test time (hr)
Amount of adsorbed CO2
CO2 concentration of the inlet gas CO2 concentration of the outlet gas
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Typical Results (Desorption)
• The amount of captured CO2 was about 3 t/day • The concentration of the captured CO2 was >95%
0102030405060708090100
0
1
2
3
4
5
0 1 2 3
CO
2 con
cent
ratio
n (%
)
Amou
nt o
f cap
ture
d C
O2 (
t/d)
Test time (hr)
CO2 concentration
Amount of captured CO2
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Future Development
Laboratory Test
Bench-scale Test
Practical test
40 ton/day
2014 2015 2019 2020-
500 ton/day Large-scale CCS
Thermal power plant, Cement plant, etc.
Improvement: Efficiency Economic Performance
Research (Lab Bench)
Practical realization (Practical test On the market)
Demonstration, Commercialization of large scale
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RITE’s Solid Sorbent
Solid sorbent Solvent
Reaction
Specific
Latent Solventless
Heat
duty
1.47 GJ/t-CO2 with 93% recovery + 98% purity is achieved. Detail report: J. Fujiki et al., Chem. Eng. J., 307, 273-282 (2017).
High performance amine was developed by RITE
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Practical Demonstration Site
Maizuru Power Station (coal-fired plant)
TOKYO OSAKA
KYOTO
Maizuru City
Bird's eye view of the practical test plant Practical demonstration will be conducted
at Maizuru Power Station of The Kansai Electric Power Co.,lnc. (KEPCO) 40 t/d-CO2
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Conclusions
Kawasaki has developed the solid sorbent CO2 capture technology for large-scale plant
Our bench plant demonstrated that CO2 was successfully captured from the coal-combustion exhaust gas using low-temperature steam
Practical demonstration project is ongoing with RITE and KEPCO supported by METI, and the practical demonstration will be conducted at Maizuru Power Station
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