Molecular Contamination Control & Sustainability

Molecular Contamination Control & Sustainability

Molecular Contamination Control (MCC) products remove molecules, gases and vapours from the air that cannot be captured using ordinary particle filters. Molecules are typically 1,000 to 10,000 times smaller than the most penetrating particles that pass through HEPA and ULPA filters.

Sustainability Report 2021

Chemicals present in gas form in the atmosphere either outdoor or inside buildings include polyaromatic hydrocarbons, volatile organic compounds (VOC), benzene, isocyanates and siloxanes, to name just a few. They all require molecular filtration to protect people,processes or machinery, or simply to remove odours. Many of these chemicals are airborne and can mix to form a dangerous cocktail with unknown health impacts.

INDOOR AIR QUALITY

Protect people staying inside buildings like airports, offices, hospitals or laboratories.

EXHAUST

Protect people and the environment from odours and toxins emitted in exhaust air streams from industrial or power generation facilities.

MICROELECTRONICS

Enhance yield in semiconductor wafer manufacturing, flat panel displays, hard disk drives and equipment. Protect from outdoor and process chemicals present at trace levels in the air.

CORROSION CONTROL

Protect sensitive electrical process control systems from acidic gases in petrochemical,pulp and paper, metal refining, printed circuit board manufacturing, data centres and wastewater treatment facilities.Corrosion control is also important for protecting artefacts in museums and storage facilities.

New products - 2019

CAMCARB VG

In 2019, Camfil launched a new version of CamCarb VG 440, a molecular filter used for corrosion control in heavy process industries and in general ventilation systems in places like airports, museums and offices.

A revolutionary product design allows the use of smaller adsorbents in order to more than double the product lifetime compared with existing competing solutions. This is in turn results in less waste, longer service intervals and a reduced environmental footprint.Additionally, the Camfil CamCarb molecular filter range was greatly enhanced by implementing a new product labelling system that focuses on target gas rather than media types. The clarity in product descriptions ensures that our customers select the products best adapted to their gaseous contamination concerns, with maximized product life and removal efficiency and therefore lowest waste generation.

TREATING ORGANIC WASTE AT BIOGAS PLANTS

When biodegradable organic waste is collected or segregated from a mixed waste stream, it provides value as a fuel for energy production or as raw material for compost or fertilizer. Any biodegradation process produces a complex mixture of gases which can create an odour nuisance or, in the case of biogas, a corrosion hazard for combustion engines. Camfil’s robust molecular filters help to eliminate these problems and remove the heavily contaminated gases from this highly valuable resource for renewable energy, compost and soil enhancers. READ MORE
how camfil's molecular contamination solutions contribute to sustainability

CORROSION CONTROL:

Protect sensitive electrical process control systems from acidic gases in petrochemical, pulp and paper, metal refining, printed circuit board manufacturing, data centres and wastewater treatment facilities. Corrosion control is also important for protectingarte facts in museums and storage facilities.

INDOOR AIR QUALITY:

Protect people staying inside buildings like airports, offices, hospitals or laboratories.

EXHAUST:

Protect people and the environment from odours and toxins emitted in exhaust air streams from industrial or power generation facilities.

MICROELECTRONICS:

Enhance yield in semiconductor wafer manufacturing, flat panel displays, hard disk drives and equipment. Protect processes from outdoor and process chemicals present at trace levels in the air.

CAMFIL REDUCES USE OF DANGEROUS CHEMICALS ANDMOVES THE MARKET TOWARDS ENVIRONMENTALLYFRIENDLY SOLUTIONS

Camfil’s molecular filters work through adsorption, in which molecules stick to materials with extremely high surface areas. CamPure is part of our range of loose adsorbent filter media. It is certified by UL, a third-party certification company, and is rigorously tested to recognized flammability standards and tested in accordance with ISO 10121-1.A highly proven method for corrosion control uses alumina-based adsorbents that use chemical impregnation with a compound called permanganate(MnO4). Camfil offers these media through the CamPure 4 and CamPure 8 brands.
Permanganate has an advantage over other chemicals typically used to filter acidic gases responsible for corrosion – its strong oxidizing property – which enables effective control of other classes of contaminants, such as formaldehyde or very odorous mercaptans. However, neither mercaptans nor formaldehyde are present in the air for most applications. Many of Camfil's customers keep replacing media containing permanganate for historical reasons without questioning if it is really the best solution to their current corrosion problems.

A HYBRID SOLUTION FOR CORROSION CONTROL WITHMINIMISED ENVIRONMENTAL THREATS

Permanganate is classified as a toxic hazard to aquatic life due to the manganese (Mn) atom in the molecule’s structure. It is therefore expensive to treat as a waste and requires specific transport procedures and precautions to avoid spillage.

As a result, Camfil now recommends hybrid adsorbents for our customers. These combine activated carbon, activated alumina and environmentally-friendly chemical impregnations when permanganate is not absolutely needed to treat the air. Our hybrid media include CamPure 15 and CamPure 32.

CamPure 15 has proved successful in applications like the removal of hydrogen sulphide (H2S) orsulphur dioxide (SO2) in pulp and paper mills or oil and gas facilities.

CamPure 32 is suitable for biogas and biomethane production, where H2S is the main contaminant. Sometimes CamPure media will be combined with separate virgin-activated carbon filters when volatile organic compounds must also be controlled. We still see plenty of room to convert permanganate media to more environmentally friendly grades, and we are pursuing this transition in the global marketplace.

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Created Friday, 3 July 2020
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