AdBlue Wiki Entry - Adblue decay and contamination

AdBlue is the registered trademark for AUS32 (Aqueous Urea Solution 32.5%) and is used in a process called selective catalytic reduction (SCR) to reduce emissions of oxides of nitrogen from the exhaust of diesel engined motor vehicles.
As the name AUS32 would suggest, it is a 32.5% solution of high-purity urea in demineralized water that is clear, non-toxic and is safe to handle. However, it can be corrosive for some metals, and must be stored and transported using the correct materials. The AdBlue trademark is currently held by the German Association of the Automobile Industry (VDA), who ensure quality standards are maintained in accordance with ISO 22241 specifications.^[1]
AdBlue is carried onboard SCR-equipped vehicles in specially designed tanks, and is dosed into the SCR system at a rate equivalent to 3–5% of diesel consumption. This low dosing rate ensures long refill periods and minimises the tank's impact on chassis space. On-highway SCR systems are currently in use throughout Europe, in Japan, Australia, Hong Kong, Taiwan, Korea, New Zealand and Singapore. The United States Environmental Protection Agency‎'s (US EPA) 2010 legislation will limit NOx to levels that will require North American trucks to be equipped with SCR post-2010. The current generic name in North America for AUS32 is diesel exhaust fluid (DEF). Some trucking industry OEMs have already developed branded SCR solutions, such as Daimler's BlueTec.
All European truck manufacturers currently offer SCR equipped models, and the future Euro6 emission standard is set to reinforce the demand for this technology. SCR systems are sensitive to potential chemical impurities in the urea solution, therefore, it is essential to maintain high standards of AdBlue quality according to the ISO 22241 standard.
The use of SCR technology in Europe made it necessary to develop an AdBlue supply infrastructure. AdBlue is available from thousands of service stations, this locator finder is updated monthly with new Retail sites selling AdBlue. It can also be purchased in canisters of 5 or 10 litres at service stations. Larger quantities of AdBlue can be delivered in, for example, 208 litres (46 imp gal; 55 US gal) drums, 1,000 litres (220 imp gal; 260 US gal) intermediate bulk container (IBCs), and bulk.

[edit] References

1. ^ Initially the specification was described in DIN 70070. In 2006 the worldwide ISO 22241 standard was introduced. Additional to the specification this also mentions the analytical test methods to verify the specification and requirements for storage, transport and handling of AdBlue. Trautwein, Wolf-Peter (2003). AdBlue as a Reducing Agent for the Decrease of NO_x Emissions from Diesel Engines of Commercial Vehicles. Technical Report DGMK Deutsche Wissenschaftliche Gesellschaft für Erdöl, Erdgas und Kohle e.V. 616-1.

[edit] External links

• AdBlue search engine for Europe
• AdBlue advice for contamination and decay
• Diesel Exhaust Fluid search engine for North America
• Guidelines and technical information on handling AdBlue correctly
• MSDS Sheet for AdBlue
• Component limits for AdBlue as outlined in DIN 70070
• FactsAboutSCR.com North American SCR Stakeholders Group
• United States EPA DEF Purchase Location Finder
• Independent AdBlue market analysis

Truck operators caught out by tightening of emissions standards

Truck operators must take notice and act in good time to avoid being caught out by the forthcoming tightening of the emissions standards within the London Low Emissions Zone (LEZ); that’s the message coming from the manufacturers and exhaust system suppliers alike.

more> http://www.cnplus.co.uk/technical/truck-operators-caught-out-by-tightening-of-emissions-standards/8615396.article

Costly Adblue Contamination Error for UK Haulier

During the past few weeks a large northern fleet operator discovered that their new Fleets NOx reduction system had become polluted.

The failed SCR injector had been polluted with oil.

The following investigation identified that the problem was caused by an operator using a non-dedicated container to transfer AdBlue from the IBC to the vehicle.  

The operative admitted to using a non approved-adblue container which had previously been used to top up engine oil and antifreeze and despite receiving a ‘quick rinse’ had led to contamination of the lines. Fortunately, the new magnum was the only truck to have received AdBlue from this container.

To confirm, AdBlue is highly susceptible to contamination and as little as 10ml of oil present in a 100 litre fill can corrupt the system causing irreversible damage.

For more information on how to protect your AdBlue from contamination visit our dedicated website pages for more information on the adblue cap or call our team today on 0044 (0)121 745 6788

adblue cure contamination

It only takes 5ml of diesel to 20 litres of AdBlue in the AdBlue tank to turn it into a harmful useless paste.  A problem that is any vehicles worst nightmere.  The first advice we would offer you is to not attempt to drive away.

In order to comply with new emission standards, the automobile industry has decided to introduce SCR technology to diesel -powered vehicles.

In nearly all cases the insurance industry will not pay out for misfuelling cases.

Thge AdBlue misfuelling cap has a build it system (including AdBlue magnet) which only opens when the AdBlue nozzle is inserted.

For more information please visit the adblue cap website

adblue® contamination partnership with TVC

AdBlue® Contamination Cap confirms partnership with Tees Valley Components Ltd

Jane McKenna, AdBlue® Misfuel Project Manager said:

'Our partnership with AdBlue suppliers has proven to be a mutually beneficial arrangement putting the AdBlue customer base at the top of both our priority lists and focus to eliminate AdBlue Contamination.

A win-win result from supplier and distributor through to the end user.'

Adblue® Contamination - The Facts

New legislation regarding emission limits have been set by the EU. These new exhaust limits come into force in 2005 (EURO4) and in 2008 (EURO5).  The limits are set out in several EU Directives, including 88/77/EEC, 1999/96/EC and 2001/27/EC.

Selective Catalytic Reduction (SCR) and AdBlue® has been selected by the vehicle manufactures.  It has been selected as a solution to help with the diesel emissions.

AdBlue® was introduced to heavy-duty vehicles over 3.5 tonnes to reduce the nitrogen oxide emissions (N0x).  Adblue® usage amounts to approx. 3-4% of the fuel consumption on EURO4 vehicles.  A typical heavy-duty vehicle will consume approx. 3 tonnes of AdBlue per year.

Although AdBlue® is considered non-hazardous it presents several probloems during storage and handling on a day to day basis.

AdBlue®:

quickly crystallises when exposed to air
It freezes at - 11 degrees C
It has a corrosive effect on some common metals
It should be protected from contamination.
It should not be released freely into the environment.

These properties require that AdBlue is handled with care.  Any equipment coming into contact must be of suitable material.

Dispensing systems must minimise contact with air to prevent crystallisation, provide protection from the cold and prevent spillage. 

AdBlue Requires a Sealed Connection
To ensure AdBlue can be handled in a reliable and safe way, IDENTIC have developed a sealed dispensing system for refilling AdBlue on vehicles.  This spill-free vehicle refilling system provides the following advantages.

1/  Prevents the risk of spillage, crystallisation and corrosion on the vehicle and the filling point.

2/  Ensures only AdBlue can be filled in the vehicles AdBlue tank preventing the risk of permanent damage to the SCR equipment.

3/  Protects the quality of the AdBlue, preventing the risk of AdBlue® contamination and maintaining the vehicle emission standards it is designed to achieve.

Adblue® Pollution Prevention Technical Information

Safe storage and use of emission reduction

solutions (ERS) - e.g. AdBlue

　

1. Introduction

Stricter exhaust emissions for commercial vehicles with diesel engines, (buses, trucks, HGVs and coaches) have been issued by the EU, (Euro 4 in Oct 2005 and Euro 5 in 2008). To meet these standards the automotive industry has adopted several technologies. One is

ERS are stored at refuelling sites and are becoming a common feature at filling stations for commercial diesel vehicles and private depots. Vehicles will have an ERS tank, from which the solution is injected into the engine exhaust stream immediately after the combustion chamber. ERS consumption is between 4 and 6% of the diesel consumption. Selective Catalytic Reduction, where harmful exhaust gases are converted to nitrogen and water by catalytic conversion. AdBlue is a trade name for an emission reduction solution used for this process.

2. Storing and using ERS.

ERS are usually an aqueous solution of urea. If you store handle and use ERS according to manufacturers’ instructions and our guidelines, they pose minimal risk to operators and a limited risk to the environment. However, urea solution is very polluting to surface water and groundwater and has caused several serious pollution incidents from spills at farms where it was stored and used as a fluid fertiliser.

Because urea solution contains ammonia it’s corrosive to some metals, such as copper and its alloys. If tanks and pipework become corroded there is a higher risk of a spill that could cause pollution – which is against the law.

It’s important that ERS are stored in containers that are specifically designed and manufactured from materials that are suitable for use with urea. This also applies to all storage ancillary equipment, such as valves, dispensing nozzles and pipework.

Urea based ERS are soluble in water and should be kept out of surface water drainage systems discharging to the environment. They

3. Reduce the risk of causing pollution

Tank manufacturers are now producing storage solutions specifically for ERS. Steel and plastic storage systems with integral secondary containment are available. Some companies may supply specialist Intermediate Bulk Containers (IBCs) that are delivered full and then collected when empty. We recommend that you use storage and dispensing systems that are specifically designed for use with ERS.

You should make sure that:

1. Your container, pipework and dispensing equipment are suitable for use with urea.
2. You have secondary containment for the container and ancillary equipment.
3. The dispensing area drainage is isolated from surface water drains.
4. You have a trigger nozzle with an auto shutoff to dispense ERS. Make sure that the nozzle can’t be left in the open position.
5. You have appropriate emergency equipment to deal with large and small spills. For example, you could use proprietary spill kits, drain mats, pipe blockers, or permanent valves on drainage systems to provide containment.
6. You have an emergency plan and suitable training for dealing with spillages or other accidents. See Incident Response

4. Need more information?

Contact your local office on 08708 506 506, or email enquiries@environmment-agency.gov.uk.

For general pollution prevention advice see Pollution Prevention Pays.

Pollution Prevention Guidelines (PPGs) are available free from our offices or our Website www.environment-agency.gov.uk/ppg

will not be removed in an oil separator so it’s important to isolate drainage from your dispensing area from the surface water system to reduce the possibility of spills and drips causing pollution.

 

AdBlue® misfuelling; the facts

Replacement of dosing, SCR and CAT units.

To prevent cross contamination we offer the worldwide patented AdBlue® Misfuelling Cap which only allows a 19MM gun entry.  Our solution comes with the AdBlue® magnet inbuilt.

The protection system consists of a ready mounted adapter that has been designed for the different sizes in adblue tanks.  The refilling neck comes in two diameters (58 and 77 mm).
We offer a cap solution for each diameter.

Only the correct AdBlue® refill pistol will fit into the opening - No access for diesel, gas, other pistols or contaminants.

For additional safety, there is a flap on the inside, which closes the opening.  It can be opened by the AdBlue® refill pistol.  The intergrated magnet releases the inserted AdBlue® refill pistol to refill the tank.  The upper part of the lid, fastened on a rubber band, closes the tank.