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S C R DS C R D EEN ON O XX SS Y S T E M SY S T E M S
FF O RO R T H ET H E MM CC II LVA I N ELVA I N E CC O M PA N YO M PA N Y
A short overview of SCR NOx Emission Control Systems for Gas Tubines
Bob McGinty, Sr. Manager, Business Development
This document and any attachments contain proprietary information and are the sole and exclusive property of Mitsubishi Power Systems Americas, Inc., “MPSA”. Your receipt of this information is an acknowledgement of a
confidential relationship between you and MPSA. This information is to be used solely by you for the purpose for which it is furnished. Neither these documents, nor any information obtained there from is to be reproduced,
transmitted, disclosed, discussed with any third party, or used otherwise, in whole or in part, without first receiving the express written authorization of MPSA.
M I T S U B I S H I H E AV Y I N D U S T R I E S
� Founded 1884, Headquarters – Tokyo, Japan� 1969 Merger of three heavy industries – MHI Ltd.
� 1979 Formed MHIA - US Headquarters New York, NY� 2001 Formed MPS – US Headquarters Lake Mary, FL� 2006 Name changed to MPSA
� Global Manufacturer:Global Manufacturer:� Shipbuilding & Ocean Development� Power systems – Thermal, Renewable, Nuclear� Machinery & Steel Structures – Environment, Transportation, Medical, Industrial� Aerospace – Space Systems, Aviation� General Machinery & Special Vehicles� Other – Air Conditioners, Industrial Machine Tools
� 34,000 Employees manufacturing 700 products worldwide� Sales in excess of $31 billion USD � A “Mitsubishi Group” core company
M H I , Y O U R PA RT N E R
I N P O W E R G E N E R AT I O N D E V E L O P M E N T
Combined Cycle Power Plant Gas TurbineLarge Steam Turbine
Geothermal Power Plant
SCR DeNOx Systems
Gas Turbines, Coal Fired Boilers
Refinery Heaters
IGCCWind Turbine
Small / Medium Steam Turbine Reciprocating Power Plant
DEVELOPMENT HISTORY (MITSUBISHI SCR)
1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
Gas
Year
Oil
Pilot Plant Commercial Operation, Conventional Boiler
Pilot Plant
Pilot Plant Low Sulfur
Pilot Plant
Utility Low
Endurance
Commercial Operation, Gas Turbine
Commercial Operation, High
Commercial
Commercial
Commercial Operation, FCC/SCR, Japan 1986 United States 2000
Zero-Slip NH3 SCRFirst Diesel
Over 35 years of first hand experience.
Coal
Utility Low
Pilot Plant
Pilot Plant
Demonstration Unit
Orimulsion
Small Pitch Test
Pilot
Plant High Commercial
Commercial
Hg Removal
MHIA & Cormetech Est’d
M I T S U B I S H I W O R L D W I D E L I C E N S I N G
MPSA
License On-goingLicense Expired
HBC
CHEC
China
MPSA
* Frauenthal now operates as Ceram after licensing agreement expired
*
M P S A E X P E R I E N C E D T E A M
� US based team drawing on 40 years R&D in Japan
� MPSA Capabilities:� SCR process design� Feasibility study and detailed engineering (incl. 3D)
Project execution / management� Project execution / management� Fabrication in North America only (sub-contract)� Shop preassembly of components (wherever possible) -> helps to
minimize field changes and associated cost
� CFD and Cold Flow Model Test (designed and controlled by Mitsubishi / executed at local facilities)
� Quality control and inspection (ISO 9001 Certified)� Commissioning and start-up
M I T S U B I S H I S C R S U P P LY L I S T
Japan & Others USA
Boiler
Coal 49 2
Oil 64 0
Gas 27 15
Gas Turbine 95 154
as of 10/2012
Gas Turbine 95 154
Diesel Engine 153 0
FCC & Refinery Heater
22 27
Total 410 198
Grand Total: 608 units
44NONO ++ 44NHNH33 ++ OO22 →→ 44NN22 ++ 66HH22OO
NONO ++ NONO22 ++ 22NHNH33→→ 22NN22 ++ 33HH22OO
Catalyst
Catalyst
PRINCIPLE OF SCR REACTION(DENITRIFICATION PROCESS)
NH3 Injection Nozzle
● NOx
● NOx
● NOx
● NH3
● NOx
● NH3
● NOx
● NH3
● NOx
● NH3
● H2O
● N2
● H2O
● N2
● H2O
● N2
● H2O
Cleaned GasFlue Gas
SC
R R
eacto
r
Add’l Scope • AFCU• PLC• Tech Advisor• Training
Options
SCR FOR SIMPLE CYCLE GT
(TYPICAL SCOPE)
SCR Catalyst
CO Catalyst
AIG & Distribution
Stack, Silencer, Analyzers
Turning Vanes & Perforated Plates
Loading doors & Platforms, Ladders
Options• Ammonia Tank• Pump Skid
Guarantee• NOx; CO; VOC• Utility• dP• Noise• Catalyst Life
Distribution Headers
Tempering Air Fans &Injection Nozzles
Perforated Plates
CT/SCR Transition Duct
S C R S Y S T E M D E S I G N
� Standardized design �Operational philosophy
�Modular design
�Catalyst modules and loading system
�Skid design (optimized to match site requirements)�Skid design (optimized to match site requirements)
� Flexibility to design around plant specific restrictions and needs. Carry out flow studies, as necessary, to determine best layout and configuration
H O T S C R F O R S I M P L E C Y C L E G T
N O T E M P E R I N G A I R S Y S T E M
S C R S Y S T E M D E S I G N
Design Considerations:
� Seismic and Wind Loads
� Thermal Growth
� Catalyst Support & Sealing� Catalyst Support & Sealing
� Accessibility (Internal and external components)
� Thermal Insulation & Liner System
� Extent of Prefabrication – Panel & Modular
� Constructability – Lowest Installed Cost
� Operation & Maintenance
S I M P L E C Y C L E M O D U L A R I N S TA L L E D S C R
CATALYST SELECTION CONSIDERATION
Service life (customer requirement)
Ammonia slip
Exhaust gas temperature Catalyst temperature
Turbine exhaust NOX levelsReactor duct configuration
Required NOX removal Flue gas flow distribution
Pressure loss allowanceFlue gas temperature distribution
Volumetric flow rate NH3/NOX distribution
T E M P E R AT U R E V S . C ATA LY S T A C T I V I T Y
CATALYST MODULES & TEST DEVICES
Typical Sampling Basket
Typical Sampling Coupon
S C R M O D E L I N G S I M P L E C Y C L E G T
T Y P I C A L A M M O N I A S K I D S ( A F C U )
Anhydrous Aqueous (19%)
Urea
Equipment Cost 100% 125% 160%
Reagent Cost 100% 145% 105%
Utility Consumption 100% 650% 400%
AMMONIA SYSTEM COST COMPARISON
• Estimation per 150 kg/hr as Anhydrous Ammonia in USA.
• Equipment cost is for the ammonia vaporization skid only (vaporizer system, dilution air system and flow control unit).
• Utility consumption is based on electricity use.
• Urea system becomes competitive if the unit capacity is small.
H O T G A S VA P O R I Z E R & A I G
C O M B I N E D C Y C L E S C R R E T R O F I T
T E M P E R I N G A I R S Y S T E M S ( 1 , 2 , 3 , X 1 0 0 % ? )
H I G H V O L U M E T E M P E R I N G A I R S Y S T E M S
- Major Design Concern;
a) Short Distance Available to Mix the Air
b) Conflicting requirement at the inlet duct
Mix the air into flue gas (Turbulence)
v.s.
Uniform gas flow necessary for CO catalyst. (Straightening)
CT
SCRcata
CO cata
S C R F O R S I M P L E C Y C L E G T
Project Features
• Frame SCGT x 4 units
• Max operating temp: ~1200F• Max operating temp: ~1200F
• Tempering Air
• Outlet NOx: 2.5 ppmvd
• Online January 2013
S U M M A RY
� MPSA has established SCR design considerations for gas turbine fired applications and can ensure long-term and continuous system operation.
� Mitsubishi has supplied SCR systems for combined cycle and simple cycle gas turbines globally, and is a “Proven”technology provider. technology provider.
� MPSA has a team of qualified experts in Newport Beach and Lake Mary Office with access to more experts at MHI Nagasaki and MHI R&D. We can offer support with feasibility studies, with project execution, and with long term maintenance of your valuable investment.
M I T S U B I S H I P O W E R S Y S T E M S A M E R I C A S , I N C .
100 Bayview Circle, Suite 6000
Newport Beach, CA. 92660
(949) 856-8400
Bob McGinty (Sr. Manager Bus. Dev.)
100 Colonial Center Parkway
Lake Mary, FL 32746
(407) 688-6800
Rand Drake (Gen. Manager, SCR Group)