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Industry has to find ways to reduce greenhouse gas emissions, mainly carbon dioxide, to prevent global warming. And Clean Air Power is continuously looking at ways of improving and evolving emission reduction technology.

Reductions in the production of carbon, NOx and particulate matter emissions must be made to comply with current, and new emission standards in order to keep levels within regulated thresholds. Concern for the environment continues to drive the development and application of exhaust after-treatment wherever internal combustion engines operate. Developments in base-engine technology are unlikely to meet ever-tighter emission targets, thus guaranteeing the drive for emission reduction technology.

The control of pollution is an issue for us all. Clean Air Power is passionate about delivering the technologies that benefit everyone, commercial vehicle operators, industry and the wider environment.

Clean Air Power’s technology works in stationary and mobile applications

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Stationary Applications
Clean Air Power provides systems to cut air quality emissions through the post-combustion treatment of engine exhaust gases. The technology is integrated into the engine’s exhaust system and can be installed in a wide range of applications. These include Natural Gas Compression, Power peaker plants, and all stationary or marine engine sources.

The systems incorporate catalysed substrates supplied by specialist manufacturers and can be integrated during the original engine manufacture or construction of a facility, or retrofitted to engines and plants already in operation.

Clean Air Power offers three technologies for controlling the major pollutants from stationary gas and diesel powered engines:

• Oxidation catalytic converters of hydrocarbon (HC) and carbon monoxide (CO) emissions
• 3-way catalytic converters to reduce NOx, CO and NMHC emissions
• Selective Catalytic Reduction (SCR) of nitrogen oxide (NOx) emissions


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Legislation is driving the development and application of exhaust after-treatment wherever internal combustion engines operate. Developments in base-engine technology are unlikely to meet new regulations because these will present increasingly challenging targets, thus guaranteeing a need for companies to turn to Clean Air Power technology far into the future.

Mobile Applications
Today, Clean Air Power has extended its product range by applying its expertise and experience in catalyst design and manufacture to develop after-treatment systems for vehicles.
These products are used to control emissions from spark-ignited gas engines running on natural gas. Natural gas is gaining traction, thanks to its cost benefit for operators compared to other fuels like diesel. There are also strong energy security drivers in markets such as the US where domestically produced natural gas can replace imported oil.

Clean Air Power’s emission reduction Sales Team can assist you in finding the best solution to reduce your emissions.

Contact the Brian Barkhimer for more information 1.858.332.4805
Emission Reduction Technology


A leader in emission reduction technology for more than 20 years, Clean Air Power provides a full line of emission reduction solutions to address widespread health and environmental concerns.

Clean Air Power provides three emission reduction technologies for controlling major pollutants from stationary diesel and natural gas engines:

• Oxidation catalytic converters of hydrocarbon (HC) and carbon monoxide (CO) emissions
• 3-way catalytic converters for reducing NOx emissions, CO and NMHC emissions
• Selective Catalytic Reduction (SCR) of nitrogen oxide (NOx) emissions


Emission reduction product specifications (PDFs):

three way DNOx silencer.pdf
For non selective catalytic reduction (NSCR) for rich burn engines

Catalyzed Particulate Filter Silencer.pdf
For stationary diesel engines

DeCOHx Silencer.pdf
Oxidation catalyst for lean burn engines

DeNOx SCR_Silencer.pdf
For diesel, lean burn gas and dual-fuel engines

DeSOPH Silencer.pdf
Oxidation catalyst for diesel engines

Emission Reduction Process
Clean Air Power’s emission reduction system uses a catalyst-coated ceramic substrate over which exhaust gas flows, integrated into the exhaust system. On the substrate’s surface, the gas interacts with the catalyst, oxidising CO and un-burnt gas-phase and liquid phase HC.

NOx is reduced over a catalyst in the presence of ammonia, oxygen being stripped from the NOx leaving the release only of harmless nitrogen and water. A secondary oxidation catalyst is fitted beyond the NOx catalyst to remove any excess ammonia that may pass through the system.

Oxidation Catalyst
Oxidation catalysts provide a quick solution to lowering emissions. Conversion of carbon monoxide, hydrocarbons and aldehydes into H2O and CO2 are the result of an oxidation catalyst at work. Products of incomplete combustion – HC and CO – are oxidised in the exhaust system by a catalyst that creates CO2 (carbon dioxide) and H2O (water).

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Three-Way Catalyst
Products of incomplete combustion – HC and CO – and NOx, are converted in the exhaust system by a three-way catalyst into CO2, H2O and N2.

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SCR
SCR (Selective Catalytic Reduction) works by treating exhaust gas after it leaves the engine. It employs an ammonia or urea injection with a catalyst that specifically targets NOx. An oxidation catalyst is typically incorporated to reduce other pollutants that come from the combustion of fossil fuels, such as carbon monoxide (CO), unburned hydrocarbons (UHCs), volatile organic compounds (VOCs) and hazardous air pollutants (HAPs).

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The design flexibility of the DeNOx Silencer contributes to optimisation of the exhaust system design for lower installation costs. A patented and innovative design combining the catalytic converter and exhaust silencer delivers a compact system that reduces footprint, pressure drop, piping, and other associated costs.

Catalytic silencer products have the added benefit of reducing noise to comply with OSHA and other standards. They present options of industrial, residential, hospital grade or custom silencing levels.


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