Takashi Kiga – IHI Corporation – Callide Oxyfuel Project: Demonstration and for the...
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Transcript of Takashi Kiga – IHI Corporation – Callide Oxyfuel Project: Demonstration and for the...
Copyright © 2012 IHI Corporation All Rights Reserved.
Callide Oxyfuel Project
- Demonstration and for the
Commercialization -
GLOBAL CCS INSTITUTE
JAPAN REGIONAL MEMBERS’ MEETIG
8 June 2012
2012.6.8
Energy Operations
1
Takashi Kiga
2 Copyright © 2012 IHI Corporation All Rights Reserved.
CONTENTS
Concept and Feature of Oxyfuel Combustion
Development of Oxyfuel Technology and Project
Callide Oxyfuel Project
Key Factors towards CCS Commercialization
Concept of Oxyfuel Combustion
As air contains N2 and Ar by 79%, CO2 concentration in flue gas is
about 15% in combustion with air.
It is possible to condense and recover CO2 directly.
N2 (+Ar)
O2
about 81%
about 79%
N2 (+Ar)
O2
about 79%
In oxy-fuel combustion, since O2 of purity of about 96-98% which
is separated from air is used, CO2 concentration in flue gas is
N2 (+Ar)
O2
Coal
Coal
Coal
<Air Combustion>
theoretically more than 90%.
<Oxy-fuel Combustion>
Ar (+N2) about 4%
O2 about 96%
about 4%
about 15%
CO2
NOx
SO2
Ar (+N2) about 5%
O2 about 4%
CO2 about 91%
NOx
SO2
Copyright © 2012 IHI Corporation All Rights Reserved.
3
Power plant with CO2 capture
using oxyfuel combustion Transportation & storage of CO2
Air separation
unit
Coal
Flue gas recycle
O2 Air
(N2 ,O2)
Non-condensable
gas N2 Dust
removal
CO2 purification,
compression &
cooling unit Boiler CO2 underground
storage
Liquid
CO2 tank
G ST Stack
Transportation
P
Oxyfuel combustion ;
In coal fired power plant, coal combustion by oxygen in stead of air make it possible
to concentrate CO2 more than 90% theoretically in the flue gas.
Applicability and potential ・Applicable to both existing and newly-installed power plants
・Potential for the reduction of cost and auxiliary power by
scaling-up of ASU and the integration of total process
Process ・Installation of air separation unit
・Flame temperature and heat absorption are
adjusted by flue gas recirculation
・NOx emission is remarkably reduced by flue
gas recirculation
・DeNOx will not to be needed and DeSOx will
be compacted in case of new installation
Feature ・CO2 is major component in the flue gas
・The amount of flue gas to CO2 purification can be reduced
to be almost one fifth
Process & Feature of Oxyfuel Combustion
Copyright © 2012 IHI Corporation All Rights Reserved.
4
Development Schedule of Oxyfuel by IHI
Now(Jun. 2011)
Stage 1
Basic
Stage 2
Demonstration
Stage 3
Commercialization
Collaboration with J-POWER
Basic research and FS
(NEDO)
2020 2015 2010 2005 2000 1995
Callide FS
(NEDO)
Research
(METI)
Commissioning
Demonstration operation
FS of commercial plant
(High efficiency + Oxyfuel)
Commercialization
Upgrading and R&D
Application to Callide A
・IHI is one of pioneers for oxyfuel development starting R&D in 1989, and basic
research and FS were performed in the 1990’s.
・FS of demonstration was performed under the collaboration with Australian partners
after 2004 and demonstration project was started in 2008.
Copyright © 2012 IHI Corporation All Rights Reserved.
5
6 Copyright © 2012 IHI Corporation All Rights Reserved.
Development of Oxyfuel Project
Callide Oxfuel Project is driving the transition from pilot phase to demonstration phase of oxyfuel technology. This “early moving” project will demonstrate CCS integrated system toward large/commercial scale demonstration projects.
Demo.
Bench/Pilot
Utility Boilers
Industrial Furnaces
Test Furnaces
Key project towards
large-scale
demonstration
0.1
Callide Oxyfuel Project - Objectives
1. Demonstrate a complete oxyfuel process in a retrofit
application
2. Establish the design and operating requirements for large
scale (commercial) retrofit and new-build oxy-fuel plants,
including geological storage
3. Estimate Capital and Operating Expenditures for the next
generation of oxyfuel near zero emission technology plants
4. Demonstrate CO2 storage
Injection and monitoring techniques
7
Outline
World first retrofit-case oxyfuel power plant
Largest capacity of 30MWe
Total process from CO2 capture with power generation to CO2 storage
Copyright © 2012 IHI Corporation All Rights Reserved.
7
Scope: •No.4 Boiler refurbishment •2 x 330 TPD ASU •Oxyfuel combustion Retrofit •70 TPD liquid CO2 recovery •Trucking to CO2 reservoir •Injection and monitoring
Callide A Power Station Owned by CE Energy 4 x 30 MWe Steam 136 t/h at 4.1MPa, 465oC Commissioned: 1965 – 69 Refurbished 1997/98 Placed in storage in 2002
8
Brisbane
Callide A P/SQLD
CO2 storage
area
Australia
Brisbane
Callide A P/SQLD
CO2 storage
area
Australia
Callide Oxyfuel Project Overview
Copyright © 2012 IHI Corporation All Rights Reserved.
8
Status of Commissioning
Commissioning works in air-firing mode
23 March, 2011 - First fire on fuel oil (diesel)
1 April, 2011 - Turbine to 3000rpm
11 April, 2011 - First coal fire in the furnace
13 April, 2011 - First synchronization
17 May, 2011 - Full load (30MWe)
(Combustion tuning, load swing & MFT testing)
Commissioning works in oxyfiring mode
12 March, 2012 - First oxygen injection to boiler
19 March, 2012 - Successful 100% RFG and oxyfiring
(Conversion of firing mode between
air-firing and oxyfiring & MFT testing)
Commissioning works of CPU will be
continued until the end of July, 2012.
First fire on fuel oil
Control room
Copyright © 2012 IHI Corporation All Rights Reserved.
9
Main Evaluation Items
Mill
Coal
bin
Boiler
GRF
AH
ASU O2
Air
N2
Stack
CO2 tank
CO2 liquefaction
Non-condensable gas
Purification & compression Cold Box
(CO2, H2O, SO2…)
FF
Flame stability
Radiation heat transfer
Combustion characteristics
<Oxyfuel process>
Boiler efficiency
N & S behavior
Hg behavior
<CO2 capture process>
N & S behavior
Hg behavior
Convective heat transfer
Tube corrosion
Grindability
and dry
Key demonstration items
- Oxyfuel & CO2 capture operation - Safety
- Durability - Process control and optimisation
- Operation flexibility - Plant efficiency
- CO2 capture rate & CO2 purity - Air ingress
- Cost data
CO2 conc., etc.
Ash characteristics
Mixing
Safety FGLPH
IDF
Purity of CO2
Impurities
10 Copyright © 2012 IHI Corporation All Rights Reserved.
10
Callide Oxyfuel Project - CO2 Storage Activity
Copyright © 2012 IHI Corporation All Rights Reserved.
11
Callide A P/S
Bowen Basin
Surat Basin
1st phase survey area
(Denison Trough)
2nd phase survey area
(Northern Denison Trough)
3rd phase survey area
≒ 300km
≒300km
Key Factors towards CCS Commercialization
Copyright © 2011 IHI Corporation All Rights Reserved.
12
Technologies for capture, transportation and storage (reliable, safe, high-efficient & low cost )
• Financial support for large scale demonstration
• Information sharing and exchange
• Scientific understanding of CO2 storage
Storage site
• Investigation of storage site by public fund
• Smooth procedure to provide exploration right
• Open data base
Regulation for CO2 storage
• Long term liability by government
Incentive
• Carbon pricing
• CDM and bilateral trading
• Subsidy for CCS service
• Incentive for regional government by development of employment and economy
• Development useful and cost effective utilization of CO2
Reliable, continuous and certain governmental policy not to be lonely at the top
Public acceptance
• Enlightenment
• Information sharing and exchange
• Scientific understanding of CCS
13 Copyright © 2010 IHI Corporation All Rights Reserved.
Callide Oxyfuel Project partners
Thank you for your attention!