Seminar on Environmental Requirements for
Commercial and Navy Ships for Efficient Maritime
Operations and Effective Environmental Stewardship
Exhaust Gas After Treatment
Wilson Chu
Global Business Development Manager
Johnson Matthey
Hyatt Regency Atlanta, Atlanta, GA
December 9, 2009
Marine Emissions Control –
Market Drivers and Control Technologies
Current
• Norway NOx Tax
• Swedish Fairways Dues
• Green Supply
DOC
and DPF
to Reduce
PM
Current and Future
• DERA
• Voluntary
SCR
to Reduce
NOx
Future
• EPA Cat. 1 & 2 NSPS
• IMO ECA – Cat. 3
Marine
Emissions
Oxicat
To Reduce
CH4
Scrubber
To Reduce
SOx
Future
• IMO ECA
• Fuel Standards
Future
• GHG
Emission Control Technologies
SCR (Selective Catalytic
Reduction) for NOx
SCR Applications
Power Plants
Gas Turbines
Waste Incineration Plants
Heavy Duty
Vehicles
SINOx®
Products
Wood-Fired
Boilers
Stationary
Engines
Marine
Engines
SCR Catalyst Operating Temperatures
400°F
600°F
800°F
Standard SINOx®
Catalyst
SINOx® Low Temperature
Catalyst
1000°F
SINOx® High Temperature
Catalyst
Simple Cycle Gas Turbines
Marine
IC Engines
Combined Cycle Power Plants
Typical High Dust Applications
in Power Plants
Tail End Applications in
Power Plants, Waste Incinerations
200°C
350°C
Operating Temperature
550°C
SCR Process
NOX
NH3
Basic Reactions
4 NO + 4 NH3 + O2  4 N2 + 6 H2O
6 NO2 + 8 NH3  7 N2 + 12 H2O
Undesired Parallel Reactions
SO2 + 1/2 O2  SO3
NH3 + SO3 + H2O  NH4HSO4
N2
H2O
SINOx®: Coated Honeycomb SCR
 High specific surface area
 High activity in low-dust flue gases (low volume)
 Optimised pressure drop (thin metallic walls)
 Variable length and number of cells (100-400 cpsi)
 Low-dust flue gas applications
(high-grade coal, oil, gas, diesel or WIP
applications)
SINOx®: Extruded Honeycomb SCR
 High specific surface area
 High activity in low-dust flue gases (low volume)
 Optimised pressure drop
 Variable length and number of cells (6-300 cpsi)
 Low-dust flue gas applications
(high-grade coal, oil, gas, diesel or WIP
applications)
SINOx®: Coated Plate SCR
 Variable pitch, minimal dust deposition
 High erosion, poison resistance
 Low pressure drop
 Plate-to-plate clearance, variable SSA
 High-dust flue gas and special applications (coalfired, industrial processes & refinery power plants)
Typical Engine SCR Layout
 SCR Catalyst
 Catalyst Reactor
Housing
 Mixing Duct/Static
Mixers
 Injection Lance
 Reductant Dosing &
Control System
 NOx Analyser (optional)
 Soot Blower (optional not shown)
 Reductant Tank
Typical SCR Installation on an OGV
SCR System
Engine
Silencer
Exhaust Pipe
SCR Catalyst Reactor
SCR Catalysts
Extruded
Honeycomb SCR
Catalyst
SCR Catalyst and Soot Blowers
Soot blowing system:
 Compressed air (only) in
combination with solenoid
valves
 Recommended for
applications with high
particle concentration (or
special high dust application)
 Developed for use in
conjunction with the multilayer concept with reduced
air consumption (10-20
Nm3/h)
Urea Dosing & Control System
Dosing Panel
Dosing Pump
Pump Station
Emission Control Technologies
DPF and DOC
for Reducing Diesel Particulate
Diesel Particulate Matter (PM)
Vapour Phase
Hydrocarbons
Solids
(SOL)
Solid Carbon Spheres (0.010.08mm dia) combine with
Adsorbed Hydrocarbons to
make Particle Agglomerates
(0.05-1.0mm dia)
Soluble Organic
Fraction (SOF) /
Particle Phase
Hydrocarbons
Adsorbed Hydrocarbons
Adsorbed
Hydrocarbons
Liquid Condensed
Hydrocarbon Particles
Sulphate with Hydration
Courtesy of SAE®
Sulphate (SO4)
DPF (Diesel Particutale Filter)
DOC (Diesel Oxidation Catalyst)
DOC
CRT® (Continuosly
Regenerating technology)
• DPF – >85% PM reduction
• DOC – Typical 25% PM
reduction
• ULSD required
DPF Applications
Off Road Equipment
Trucks
CRT®
Products
Stationary Engines
Locomotives
Buses
Emission Control Technologies
Methane Oxidation Catalyst
Methane Oxidation Catalysts
• Development of new catalysts required to improve low
temperature activity and extend catalyst life
Emission Control Technologies
SOx Scrubbing System
Scrubber System Retrofit
• Achieves >97% reduction in SO2
• Sea water intake and discharge
• Fuel cost savings
STEAM COIL FOR
PLUME
SUPPRESSION
SEAWATER
DISCHARGE
11,349 kw
DIESEL ENGINE
Johnson Matthey
Marine
Emissions Control Experience
Johnson Matthey Marine SCR and DOC
Emissions Control Experience
NOx Control (SCR)
• 52 Ocean Going Vessels
• 162 SCR systems
• Category 3 Diesel Engines
• Boilers
• APU
Fuel: HFO, MDO
And Diesel
PM Control (DOC)
• NY Water Taxi
Fuel: ULSD
Staten Island Ferry - NYC Transit
Alice Austen
Staten Island Ferry
Engines:
Exhaust gas flow
Temperature:
NOx Reduction:
SCR installed:
2 x CAT 3516 A
8507 ACFM
752°F
< 3 g/kWh (~ 70%)
2004
New York Water Taxi
• Seaworthy Systems, Inc.
• 600 Hp Detroit Diesel
Series 60 engine
• DOC
• 25% PM reduction
• Direct muffler replacement
• Installed 2006
Courtesy New York Water Taxi
LNG Carrier, Norway
Project:
„Golar Spirit“
SINOx® Installed: 2008
Application:
2 x Regas Boiler (77 t/h)
Exhaust Gas Flow: 70.100 Nm³/h
Fuel:
LNG/HFO
Temperature:
290°C
Catalyst Type:
Catalyst Volume:
Exhaust NOx:
NH3 Slip:
SW 30 Honeycomb
24,12 m³
180 mg/Nm³
5 mg/Nm³
LNG Carrier, Belgium
Project:
SINOx® Installed:
Exhaust Gas Flow:
Application:
Fuel:
Temperature:
Urea Consumption:
2 x LNG Carrier, Exmar „Ecellence/Excelerate“
2007
2 x 70.100 Nm³/h
2 x 70t/h Regas Boiler (each)
HFO/MDO
380°C
40 %
Catalyst Type:
Catalyst Volume:
Exhaust NOx :
SW 30 Honeycomb
10,62 m³
30 mg/Nm³
Merchant Vessel, Sweden
Project:
„MS Timbus“
SINOx® Installed:
1999
MaK 8M32 (Main)/ MAN 6L16/24 (Aux.)
3,840kW / 540 kW (Aux.)
21,000 / 3,000 Nm3/h
HFO / MDO
320 / 336° C
97 / 8 l/h (@40%)
Type
Power
Exhaust Gas Flow
Fuel
Temperature
Urea Consumption :
Catalyst Type
SW 30 Honeycomb
Catalyst Volume 3 m³/engine (Main)
0.4 m³/engine (Aux.)
Exhaust NOx:
2g/kWh
Supply Vessel Work Ship
Project:
Exhaust gas flow:
Engine type:
Fuel:
Temperature:
SINOx® Installed:
„Supply Vessel/Work ship“ Kleven
52.290 m³/h
2 x MAN 6L 32/40, 2 x MAN 8L 21/31
MGO
335° C
2007
Catalyst type:
Catalyst volume:
NOx Reduction:
SW 40
3,8 m³
2 g/kWh
Contact Us
Wilson Chu
Johnson Matthey
chuw@jmusa.com
484-320-2119