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About

Emission Reduction Technologies – Exhaust Gas Cleaning Systems

Efficient exhaust gas cleaning with ME Production.

ME Production is a Danish developer and manufacturer of customized emission reduction systems for marine applications.

Our efficient and advanced solutions ensure compliance with the most stringent national and international marine emission standards – now and in the future.

We offer solutions that fit all diesel engine types, sizes, speeds and fuel types, and our services cover the complete project from start to finish including consulting, sizing, design, manufacturing, supervision and commissioning.

Suitability

Our exhaust gas cleaning systems can be utilized on board a wide variety of vessels making it truly universal. Our solutions fit all boiler and diesel engine types, sizes, speeds and fuel types and are suitable for new buildings as well as retrofits. You own it, we got the solution for it.

Emission Reduction Technologies  – Exhaust Gas Cleaning Systems

Efficient exhaust gas cleaning with ME Production.

ME Production is a Danish developer and manufacturer of customized emission reduction systems for marine applications.  

Their efficient and advanced solutions ensure compliance with the most stringent national and international marine emission standards – now and in the future.

They offer solutions that fit all diesel engine types, sizes, speeds and fuel types, and our services cover the complete project from start to finish including consulting, sizing, design, manufacturing, supervision and commissioning.

Suitability

ME Production exhaust gas cleaning systems can be utilized on board a wide variety of vessels making it truly universal.  Their solutions fit all boiler and diesel engine types, sizes, speeds and fuel types and are suitable for new buildings as well as retrofits. You own it, ME Product got the solution for it.

MEP – SOx Scrubber solution reduces emissions of SOx. SOx is washed out of the exhaust gas by injecting sodium hydroxide as the reacting agent in the process water.

MEP scrubber system is composed of the following components:

1. Scrubber unit: In the Scrubber unit SOx is washed out of the exhaust gas by the process water. The Scrubber unit design is always customized according to the individual vessel and the available space on board.
2. Dosing unit: Sodium Carbonate is injected in the process water as the reacting agent to remove SOx in the exhaust gas. The Na2CO3 agent is supplied from the dosing unit.
3. Process tank: The supply of process water for the scrubber unit is taken from the process tank. The process water is also returned to this tank. Fresh water is added continuously and wastewater is taken out for wastewater treatment.
4. Seawater pump: The cooling system is based on seawater being pumped in to a heat exchanger and from there back to the sea in a closed system without any connection to the internal process water flows.
5. Heat exchanger: The process water is continuously being cooled for an optimized scrubbing process.
6. Wastewater treatment unit: Wastewater from the process tank is being treated to separate sludge content and waste water. Sludge content is sent to the ship’s normal sludge tank and waste water is then again cleaned to a quality level that allows discharge of most of the water. The rest of the waste water is sent to a holding tank for disposal in port.

Benefits

• Cost-effective solution to emissions regulations
• We offer turnkey solutions
• We provide customized designs for retrofit installations
• Solution includes complete control and monitoring system
• Low weight and space-saving compact modular design
• Easy installation
• Full silencer capability

There is still time before the IMO SOx and NOx emission limits come into force in ECAs and worldwide in 2020, but why not realize the significant fuel savings now by installing exhaust gas cleaning systems sooner than required?

Return on investment

The installation of an exhaust gas cleaning system is the most cost effective solution to meet the IMO Sulphur regulations. If a vessel sails roughly 50% of its time in SECA areas, investment in an exhaust gas cleaning system is a solid business-case. In the case of a vessel with large installed power, there is a positive business case even if the vessel sails less than half of its time in a SECA area.

In the end, the return on investment depends on various factors, such as total installation time and downtime, operating costs of the exhaust gas cleaning system, and expectations of future fuel prices.

The marine industry is facing stringent emissions legislation in the years to come. To comply with future emissions standards, ship owners need to switch to the expensive low Sulphur fuel or invest in exhaust gas cleaning technology.

Exhaust gas cleaning technology has proven to be an efficient and cost-effective solution to meet emissions requirements with a typical payback time of three years depending on variables such as the vessel’s operational profile as well as sailing time spent in ECAs.

Make your own calculation in excel.

SOx Scrubber

See more in ME Production SOx Scrubber product descriptions:

• Open Loop
• Closed Loop
• Hybrid

NOx SCR

Selective Catalytic Reduction

ME Production´s emission reduction systems are based on proven emission reduction technologies.

Their advanced NOx reduction systems use SCR technology – Selective Catalytic Reduction – which is recognized as one of the most cost-effective and fuel-efficient technologies available for the reduction of NOx.

The basic principle of SCR is to reduce NOx emissions by injecting a liquid-reductant agent through a special catalyst into the exhaust stream. This sets off a chemical reaction that converts the nitrogen oxides – NOx – present in the diesel engine’s exhaust gas into nitrogen, water and CO2.

With its superior return environmentally as well as economically, SCR is considered one of the most viable solutions to the emission limit challenge.

At ME Production, they are uncompromising when it comes to quality and work with leading marine engine and SCR catalyst manufacturer Haldor Topsoe..

NOx reduction systems based on SCR technology include the following components:

• SCR reactor
• Storage tank for reducing agent
• High pressure injection pump for reducing agent – dosing unit
• High pressure nozzle for urea injection
• Exhaust gas mixer
• Flow control system
• Emission analyzer

SCR Reactor

An SCR NOx emission reduction system is a simple system and the reactor is the key component. The catalyst is the heart of the reactor for it is within the catalyst itself the chemical reaction takes place converting harmful NOx to harmless nitrogen, water, oxygen and Co2.

ME Production use Haldor Topsoe’s patented DNX catalysts, which have been specially designed for DeNOx. They are of the corrugated type based on porous, fiber-reinforced titanium (TiO2) carrier, which is homogeneously impregnated with the active components: oxides of tungsten and vanadium. The monolithic structure is made with different geometry (hydraulic diameters) for different particulate loadings of the gas to be treated.

The main features of the Topsoe DNX catalysts are their well-defined and controlled tri-modal pore structure. The porous structure provides the catalysts with a large internal area where the active components are finely dispersed on the entire surface. This provides a large number of active sites and thus high activity i.e. high NOx conversion rates.

The special features of the manufacturing process result in a catalyst with a considerably lower weight than steel plate and extruded honeycomb type catalysts. In addition to the advantages of lower weight the fiber-reinforcement of renders structural flexibility to the monolithic structure providing it with an exceptional resistant to thermal as well as mechanical shocks. In combination with a high porosity, this makes the catalyst extremely responsive to rapid changes in plant load compared to denser, extruded or plate-type, catalysts.

The DNX catalysts have been designed for use with all reciprocating engines and therefore they are able to withstand heavy exhaust pulsation and engine vibrations. The catalysts are encased in steel sheet elements, which can be easy to installed and replaced in a sturdy framework to form modules.

MEP – NOx SCR

The MEP – NOx SCR uses proven SCR technology to reduce NOx emissions. With its superior return environmentally as well as economically, SCR is considered one of the most viable solutions to the emission limit challenge.

MOur MEP – NOx SCR system is composed of the following components:

1. SCR unit: The SCR unit contains the catalyst elements. Here urea is injected into the exhaust stream to set off a chemical reaction that converts the NOx present in the diesel engine’s exhaust gas into harmless nitrogen, water and CO2. The SCR unit design is always customized according to the individual vessel and the available space on board. Both horizontal and vertical designs are available.
2. Urea injection: Urea is injected into the exhaust gas flow through an advanced nozzle. The injection system is important to ensure that urea is mixed homogeneously with the exhaust gas in order to maximize the NOx removal performance.
3. Urea dosing pump: The correct amount of urea is supplied to the injection nozzle by the urea dosing pump. The urea dosing process is continuously controlled according to the exhaust gas flow and engine load.
4. Urea tank: Urea is supplied from the urea tank where a sufficient amount of urea is stored based on the ship’s individual needs.
5. Gas sample NOx measurement: The NOx reduction rate is continuously monitored and logged directly after the SCR unit. Furthermore, exhaust gas samples are tested and the NOx removal performance logged.

Benefits:

• Cost-effective solution to emissions regulations
• We offer turnkey solutions
• We provide customized designs for retrofit installations
• Solution includes complete control and monitoring system
• Low weight and space-saving compact modular design
• Easy installation

SCR System

Read more in ME Production product descriptions, SOX SCR – click here to open.