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CO2 Capture Technology/KM CDR Process®
NRG FACT SHEET
Figure 1: Coal-fired Power Plant – System Composition
Background
Flue gas CO2 capture technology separates CO2 from large CO2 emission sources derived from combusting coal, natural gas or oil fuel. In the case of coal-fired power plants as shown in Figure 1, flue gas CO2 capture technology is applied downstream of the existing emissions control systems.
Captured CO2 is compressed and then used in enhanced oil recovery (EOR) where the CO2 will remain sequestered in the underground rock formations.
The process is built on proven, advanced flue gas CO2 capture technologies with specific application for fossil fuel power generation facilities. It utilizes the proprietary KS-1 trademark solvent that has improved absorption and regeneration properties while also lowering corrosiveness and degradation features, compared with normal amine applications. These aspects contribute to lower energy requirements, solvent consumption and emissions of waste products.
MHI is a world-leading flue gas CO2 capture technology supplier and is strategically positioned to provide the most technically proven, environmentally friendly and economically robust CO2
capture process.
Technology Overview
The MHI flue gas CO2 capture process, so called “KM CDR Process®” (Kansai Mitsubishi Carbon Dioxide Recovery Process) can be applied to either existing or new power plants. This technology has been co-developed by MHI and Kansai Electric Power Company (KEPCO) since 1990.
FOR MORE INFORMATION, CONTACT:David KnoxNRG Energy
1000 Main, Houston, Texas 77002Office: 832.357.5730
C.W.(CoolingWater)
C.W.
Absorber
Flue Gas Quencher
Treated Flue Gas
Flue Gas
RegeneratorC.W.
Steam
The flue gas is cooled to a process desired temperature.
90% of CO2 is recovered from the flue gas by contacting with KS-1TM solvent
CO2 is stripped from KS-1TM solvent in the RegeneratorMHI Energy
Saving System
CompressedCO2
4,776 mtpd(metric ton per day)(equal to 5,265 short
ton per day)
CO2 Compressor
CO2Capture
CO2 CapturePlant
FGD
Flue GasDesulfurization
BH
Bag House
SCR
SelectiveCatalyticReduction
Boiler
Power Station
EOREnhancedOil Recovery
CO2Compression
NOx Ash SOx CO2
Steam Turbine
CCSCarbon Capture& Storage
Coal
AirCleanEnvironment
KM CDR Process®:• World’s largest operating flue gas CO2 capture plant – eleven operating plants for various flue gas sources
including the largest post combustion CO2 capture plants in the world (as of June, 2014)• World’s most energy efficient process with KS-1 solvent – leading to reduced costs• World’s most advanced and comprehensive industrial R&D programs for more than 20 years – deployment of
multiple R&D pilot plants and research facilities led to significant process and technology improvements• More than 207 patents pertaining to the KM CDR Process® all over the world (as of June, 2014)• Widespread commercial experience with large scale various Air Quality Control Systems (AQCS) equipment
NRG FACT SHEET
Experiences
The experience gained from the deployment of eleven operating plants has been invaluable in strengthening operation and reliability in CO2 capture plants. Eleven major MHI CO2 capture plants are currently under operation as shown in Figure 3.
Figure 3: MHI CO2 capture plant - Worldwide experience
Coal-fired power plants are the largest producer of CO2 emissions. The 500 mtpd (metric ton per day) CO2 capture and sequestration project at Plant Barry in Alabama is currently the world’ s largest start-to-finish carbon capture and storage project from coal fired flue gas. The CO2 produced from the capture plant is transported via a pipeline and sequestered at the Citronelle oil field.
The capture plant began successful operation on June 2, 2011 and achieved a 100,000 ton of CO2 injection until October, 2013.
Figure 4: The 500 mtpd CO2 capture plant at Plant Barry / Overview
Technology Demonstration
(Remark) KM CDR Process is a registered trademark of Mitsubishi Heavy Industries, Ltd., in Japan, the United States of America, European Union (CTM), Norway, Australia, and China.
NRG is a registered servicemark of NRG Energy, Inc. The plus signs and plus clusters are servicemarks of NRG Energy, Inc. © 2014 NRG Energy, Inc. All rights reserved.
1999 Malaysia210 Mt/d
2005 Japan330 Mt/d
2006 India (Aonla)450 Mt/d
2006 India (Phulpur)450 Mt/d
1
2
3 4
2009 Bahrain450 Mt/d
7
2010 UAE400 Mt/d6
2009 India (Kakinada)450 Mt/d
5
2010 Vietnam240 Mt/d
2011 Pakistan340 Mt/d
8
Plants under operation
KEY9
2012 India (Vijaipur)450 Mt/d
12 2014 Qatar500 Mt/d
10
2011 U.S.A(SOCO)500 t/d11
Plants under construction
1999200 t/d Malaysia
2005330 t/d Japan
2006450 t/d India
CO2 Recovery (CDR) Plant –IFFCO AonlaUnit (India)
2006450 t/d India
CO2 Recovery (CDR) Plant –IFFCO Phulpur Unit (India)
2009450 t/d India
2009450 t/d Bahrain 2010
400 t/d UAE
2011340 t/d Pakistan
2010240 t/d Vietnam
2011 500 t/d USA
2012450 t/d India
2014500 t/d Qatar