Applications -> Stationary Source -> North America -> Engine & Power Industries

Stationary reciprocating internal combustion engines are widely used around the world in a variety applications including natural gas production, natural gas transmission, power generation, combined heat and power generation, pumping, and carbon dioxide generation for greenhouses. These engines can be spark ignited (natural gas, propane or gasoline) or compression ignited (diesel). As demand for distributed generation of electricity increases, stationary engines have been found to be very reliable for prime power, backup or emergency standby power and for peak shaving power.

Diesel Engines
Diesel engines (DE) used in power generation tend to be specified for emergency back-up power usage at hospitals, banking, manufacturing industry.

Johnson Matthey leads the world in diesel catalyst development and offers a wide range of specialised Honeycat® products with both higher sulphur tolerance and reduced SO2/SO3 conversion for the reduction of CO and HC emissions.

Gas Engines
Gas engines (GE) for both stoichiometric and lean burn operation are commonly found used for decentralised power generation applications, predominantly in cogeneration – so called combined heat and power plant (CHP) applications.

Heat and power generation applications offer almost ideal preconditions for the use of catalytic emission control technologies, which can be packaged in standard or tailor-made converter housings depending on the specific needs of the application.

Johnson Matthey offers a range of Honeycat® catalysts for efficient control of CO and HCs such as nmHC and VOC.

Rich-burn IC engines are typically used in North America for gas transmission/compression and pumping and irrigation applications.

In Europe, regional and local agencies in coordination with the European Union (EU) and European Environment Agency (EEA) have mandated the control of emissions from these engines to varying degrees, depending on factors such as engine size, engine location, site limits, operating hours, annual emissions rate, regional non-attainment status, existing or new engine, etc. NOx, CO and VOC emissions have been specifically targeted. In the US, rules have recently been specifically developed to control Hazardous Air Pollutants (HAP) including formaldehyde, acetaldehyde, acrolein and methanol. In Europe, countries such as Denmark and Germany have also sought to regulate these compounds. In California, particulate matter (PM) has been deemed an air toxic and programs have been instituted to control PM from stationary diesel engines with similar measures under way in Europe and the rest of North America.

State and local agencies in coordination with the US EPA have mandated the control of emissions from these engines to varying degrees, depending on factors such as engine size, engine location, site limits, operating hours, annual emissions rate, regional non-attainment status, existing or new engine, etc. Emissions of NOx, CO and VOC’s have been specifically targeted. And, more recently rules have been developed to control Hazardous Air Pollutants (HAP’s), including formadelhyde, acetaldehyde, acrolein and methanol. In California, PM (particulate matter) has been deemed an air toxic and programs have been instituted to control PM from stationary diesel engines.

Primary measures to reduce exhaust emissions involving in-cylinder, fuelling and lubrication oil modifications can be very effective but can also adversely affect output performance. Increasingly, secondary measures, involving catalytic and filtration technologies are being specified to meet local or national emissions regulations.

Johnson Matthey offers the following catalyst and filter technologies to control emissions from stationary engines:

For further information on IC Engine emissions control, please contact us.

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