25 September 2016

8 Oct 2014

A new player in the exhaust after-treatment market?


L’Orange, a subsidiary of Rolls-Royce Power Systems AG, has introduced a new product, L’ONOX, for exhaust after treatment in the marine industry. L’ONOX is said to support the reduction of nitrogen oxide emissions from diesel and heavy fuel oil engines and aims to aid compliance with new emission limits for large engines beginning in 2016.

The International Maritime Organisation’s (IMO) Tier III regulations, which will come into force in 2016 for vessels over 500gt and in 2021 for vessels under 500gt, represent a challenge for all manufacturers of large engines as it calls for a reduction to approximately two grams of nitrogen oxide. However, the development team at L'Orange claims to be supporting engine manufacturers with the required reduction of nitrogen oxides with an innovative solution in the exhaust after-treatment process.

“L'ONOX injects a urea-water solution at a pressure of about 10 bar into the exhaust system through several dosing units,” the company explains. “To ensure accurate dosage amounts, the L'ONOX system’s electronic components continuously monitor the signals from the integrated pressure and temperature sensors. True to the proven common-rail principle, several injection units are supplied by a single delivery unit. The precise injection process ensures optimal mixing of the urea-water solution in the exhaust system. This supports the efficient reduction of nitrogen oxides into nitrogen and water in the SCR catalytic converter.”

It is important to remember, however, that the exhaust after treatment market is vast when considering all the different types of marine activity it applies to, which calls into question this particular product’s applicability to the superyacht sector. SuperyachtNews.com contacted L’Orange to find out to what extent, if at all, they were targeting the superyacht industry, and whether they had any clients within the sector, but received no response. As a result, we contacted an established exhaust after treatment player in the superyacht industry to find out if the new product offers different from existing solutions on the market.

Captain Ted Sputh, founder of clean-exhaust, was able to offer a comparison. “L’Orange and clean-exhaust are both trying to make our environment cleaner,
but as I see it, the process and the end result are different,” he explains. “Clean-exhaust will work on any vessel, old or new, with a gas or water separator muffler system, which is the norm for most of the superyacht industry. If my interpretation of the L’Orange system is correct, a Selective Catalytic Reduction (SCR) converter is necessary for it to function. SCR converters came into use in the late 1970s so any superyacht that wanted to use this system would have to have been delivered after about 1980. If the vessel doesn’t have a catalytic converter, the retrofit might be very expensive. To my knowledge, I am only aware of Christensen Yachts using a catalytic converter at this time on superyachts.”

“The most important point is that clean-exhaust is a new fresh idea. Using urea and water through a catalytic converter was invented about 40 years ago and many companies are using the same process. My bet is that the Engelhard Corporation, which patented the process of using ammonia as a reducing agent in 1957, is continuing to reap benefits from the L’Orange process.”

While L’Orange’s new product may not be unique on the market, and does not appear to be as applicable to the superyacht market as some existing solutions, Captain Sputh believes that there remains a common aim. “Clean-exhaust’s main objective is to help facilitate cleaner air for our crew to breathe, cleaner oceans for sustaining life and cleaner hulls for owners, guests and crew to enjoy,” he concludes. “It is my hope that any company that’s trying to improve diesel exhaust has the same goal.”

Profile links

Clean Exhaust

Rolls-Royce Marine


Add a comment

1800 character limit

Having problems? Let us know editor@superyachtnews.com

Other Products News

Voice control arrives for your superyacht

Tired of pushing buttons and handling myriad devices to control your on-board environment? Meet Josh, the artificial intelligence system that adds voice control to your home or yacht and learns your habits and patterns over time More

Northern Lights readies itself for Tier III

Northern Lights, the US-based marine power generation manufacturer, has recently acquired ISO:9001:2015 certification and agreed a strategic partnership with a well-known engine manufacturer More

Do PWCs go far enough in mitigating risk?

A recent spate of lawsuits against personal watercraft manufacturers begs the question, can more be done to mitigate the risk of internal orifice injury? More

New YachtEye API available for control devices

Previously, the functionality of the YachtEye experience had been limited by on board control systems, but the new API bridges the gap and makes YachtEye more universal More

products News Archive

Most Recent Comments

  1. PE Marine Designz releases new hinges More
  2. On board NOAS ark More
  3. Boosting connectivity More
  4. METSTRADE 2015 review More
  5. SeaClean[ing] as it should More
SuperyachtNews app available now. Click here to download.
The Superyacht Intelligence Annual Report is out now. Subscribe today and access your digital copy instantly. Subscribe now.


Get regular updates from SuperyachtNews with our weekly Email Newsletter.



Latest Premium Listings

Cummins Inc.

Cummins Inc.

Nlightened Software Ltd

Nlightened Software Ltd

Cogs 4 Cancer

Cogs 4 Cancer

Zytexx International Ltd

Zytexx International Ltd

Melita Marine Group

Melita Marine Group

Raytheon Anschuetz

Raytheon Anschuetz

Kahlenberg Industries, Inc.

Kahlenberg Industries, Inc.

Directory. Add your logo here with a premium listing.

Featured Listings

Engine Room, HVAC & Refrigeration

ASEA POWER SYSTEMS is the Marine Industry Leader for Shore Power Conversion equipment ranging in power from 8kVA - 1000kVa.

Satellite Communication

Marlink AS
Marlink offers seasonal, flexible contracts to match regional sailing requirements. Through our dedicated account managers & customer services, we develop personal relationships with customers & drive innovations to develop digital solutions & smart applications that take you beyond just connectivity.

Shore Power Convertors

Atlas Marine Systems, the world leader in the design of marine electrical power systems, offers a full range of engineering services necessary to define the onboard electrical distribution system or simply the application of the Atlas power conversion products.

Tenders & Toys

Superyacht Tenders & Toys
Superyacht Tenders & Toys have a high level of expertise in providing new build and custom tenders, chase boats, RIBs & all popular yacht toys. With an unrivalled global service network, maintaining a personal & bespoke service, wherever you are in the world, Superyacht Tenders & Toys can help.

Navigation, Satellite Communication, Security

Raytheon Anschuetz
Integrated Navigation Systems based on state-of-the-art technology and decades of experience in the superyacht industry. Ultimate knowledge and flexibility in system integration. Dedicated customer care throughout the whole project and beyond.

Electrics, Environmental Solutions, Propellers & Propulsion, Software, Training

ABB Marine and Ports
ABB is a leading supplier of electrical power and propulsion systems for ships. We provide innovative, safe and environmentally-friendly solutions and qualified services worldwide. Our Azipod® propulsion has proven its efficiency and reliability on yacht vessels with its ultimate silent and ecological solution.

Paint & Protection

WREDE Consulting is an independent paint consultant and paint surveyor company who has worked for most of the 200 largest yachts worldwide in coating, paintwork and equipment areas. WREDE Consulting engages in quality management and objective quality assessment for the coating of mega- and superyachts. www.wrede-consulting.com

Water Treatment & Watermakers

Jets Vacuum AS
Jets Vacuum has for over 30 years been the leading innovator in vacuum sanitation technology. With over 11,000 Jets systems in operation on all types of ships, Jets are known for high quality, flexible cost efficient solutions backed up by first class world wide service

Add your company listing here

Add a featured listing here and your advert will appear on every page of SuperyachtNews.com, SuperyachtIndex.com, TheSuperyachtReport.com and TheCrewReport.com.

Add my company listing