Johnson Matthey Catalyst Selectively Reduces CO Emissions

Posted by Michelle Howard
Monday, January 06, 2014

“Compliance with both RICE NESHAP and Opacity Limits is now possible with this catalyst that selectively oxidizes CO, but not NO. ”


Precious metal catalysts are widely used in HAPs converters to reduce CO emissions from IC engines in order to comply with the EPA’s RICE NESHAP regulation.  Platinum catalysts also convert the nitric oxide (NO) in the engine exhaust to nitrogen dioxide (NO2), which under certain conditions can produce a visible plume and cause an opacity problem.  To solve this dilemma, Johnson Matthey scientists—leading experts in catalytic technology-- developed a new catalyst that selectively oxidizes CO but does not oxidize NO.  This enables diesel and dual fueled reciprocating engines with high exhaust NOx emissions to not only meet the new federal RICE NESHAP requirements, but also to comply with state opacity regulations.



The specially formulated oxidation catalyst solved a technical challenge faced by a peaking power plant, where oxidation catalyst systems were installed on Cooper-Bessemer LSVB-20-GDT CI engines to meet RICE NESHAP emission limits.



Standard HAPs converters were fitted to these two 8,656 bhp engines which operated on either ultra-low sulfur diesel fuel or dual fuel.  The standard converters met the RICE NESHAP CO oxidation requirements but also caused a high conversion of NO to NO2.  This resulted in the formation of an opaque yellow plume in the exhaust stack, which exceeded a State mandated 20 percent opacity limit preventing the operation of these engines.  Thus, Johnson Matthey set out to tackle this difficult technical problem by developing a new catalyst formulation in the laboratory and moving it quickly to the customer application.  The field application confirmed that the requirements for CO conversion and visible opacity can both be met with this new catalyst.  The CO conversion efficiency exceeded 90%, and there was no conversion of NO to NO2.  The opacity with the new catalyst was the same or less than it was before the catalytic converter was installed.


 
Johnson Matthey anticipates that many other high horsepower diesel engines will encounter the same opacity problem since these engines tend to have high NOx emissions. The new Johnson Matthey oxidation catalyst is the only one of its kind available today that can solve those problems as well and also meet RICE NESHAP requirements.

 

Maritime Reporter August 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

China Passes New Pollution Law, Will Cap Coal Consumption

Legislators have approved amendments to China's 15-year-old air pollution law that grant the state new powers to punish offenders and create a legal framework to cap coal consumption,

Marad Celebrates Deployment of Maritime Fuel Cell Project

The U.S. Department of Transportation’s Maritime Administration (MARAD) today celebrated the launch of field trials for the first prototype hydrogen fuel cell

Gazprom, OMV Meet on Establishing Nord Stream JV

At a Meeting held at the Gazprom headquarters between Alexey Miller, Chairman of the Company's Management Committee and Rainer Seele, Chairman of the Executive Board of OMV,

Marine Power

Exhaust Gas Scrubber Guide Updated

An updated version of the “Exhaust Gas Cleaning Systems Selection Guide” is now available, the U.S. Maritime Administration (MARAD) announced today.   Developed

Thordon Bearings Names New China Distributor

Thordon Bearings Inc. of Canada announced that CY Engineering Co. Ltd. will take over as the new authorized distributor for the People’s Republic of China, including Macau and Hong Kong,

LUKOIL Marine Lubricants Opens Gothenburg Warehouse

LUKOIL Marine Lubricants informs it has opened a new warehouse in Gothenburg.   The marine lubricants supplier said it constantly strives to expand its global supply network,

News

China Passes New Pollution Law, Will Cap Coal Consumption

Legislators have approved amendments to China's 15-year-old air pollution law that grant the state new powers to punish offenders and create a legal framework to cap coal consumption,

Marad Celebrates Deployment of Maritime Fuel Cell Project

The U.S. Department of Transportation’s Maritime Administration (MARAD) today celebrated the launch of field trials for the first prototype hydrogen fuel cell

Gazprom, OMV Meet on Establishing Nord Stream JV

At a Meeting held at the Gazprom headquarters between Alexey Miller, Chairman of the Company's Management Committee and Rainer Seele, Chairman of the Executive Board of OMV,

Marine Equipment

MN 100: ContainerTug B.V.

The Company: ContainerTug B.V. is a specialized Dutch naval design engineering and construction company with a strong focus on developing workboats and the evaluation

Exhaust Gas Scrubber Guide Updated

An updated version of the “Exhaust Gas Cleaning Systems Selection Guide” is now available, the U.S. Maritime Administration (MARAD) announced today.   Developed

NASSCO Invests in Facilities, Equipment and People

General Dynamics NASSCO has invested several hundred million in capital projects as part of its efforts to increase efficiencies via  modular shipbuilding, including:

Government Update

Iranian Ship, Crew Escape Captivity off Somali Coast

An Iranian fishing vessel and its crew have escaped after being held captive for five months by Somali fishermen, maritime piracy experts said on Friday, but it

Migrant Boat Sinks off Libya; 200 Feared Dead

A boat packed with mainly African migrants bound for Italy sank off the Libyan coast on Thursday and officials said up to 200 might have died. A security official in the western town of Zuwara,

Oil Steadies as Equities Rally

Recovering stock markets boost oil prices; U.S. crude on track for first weekly gain in nine weeks. Oil prices steadied on Friday after bouncing back from six-and-a-half-year

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Offshore Oil Pipelines Port Authority Salvage Ship Electronics Ship Repair Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1851 sec (5 req/sec)