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Three-way catalyst

Mobile emission controls: three-way catalysts for cars, vans, light trucks and motorcycles.

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MODULEX and DUALOX catalytic converters and converter-silencers

Stationary emissions control: Johnson Matthey's MODULEX and DUALOX® catalytic converters for stationary engines were developed to satisfy the increasing demand for clean air technology combined with silencing.

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Three Way Filter (TWF®)

Mobile emission controls: Johnson Matthey's Three Way Filter (TWF®) technology can reduce particle numbers by up to 99%.

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Selective Catalytic Reduction Filter® (SCRF®)

Mobile emission controls: the SCRF® system integrates Selective Catalytic Reduction (SCR) with a soot filter – the next step for diesel nitrogen oxide control.

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Selective catalytic reduction (SCR)

Mobile emission controls: selective catalytic reduction (SCR) systems work by chemically reducing nitrogen oxide to nitrogen.

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Diesel oxidation catalyst (DOC)

Mobile emission controls: many diesel particulate filter (DPF) systems incorporate an oxidation catalyst, either as a coating on the filter or as a separate element.

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SCRT system technology

Mobile emission controls: the SCRT® system is more than simply a combination of a CRT® system and an SCR system.

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Purification by catalytic oxidation

Our PURAVOC™ technology provides a catalytic oxidation solution to remove a broad variety of volatile organic compounds (VOCs), oxygen, hydrogen and carbon monoxide from various gas stream sources.

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ActivCRT® and ActivDPF ® diesel particulate filters

Diesel particulate filter systems / engines

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Ammonia slip catalyst (ASC)

Mobile emissions control: Johnson Matthey’s ASC technology removes residual ammonia (NH3) from upstream ammonia dosing systems, converting it into nitrogen (N2) and water (H2O).

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DyadPalladate™ pre-catalyst kit

Our DyadPalladate™ pre-catalysts offer a cost-effective alternative to in situ and advanced cross-coupling systems.

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HTX platinum thermocouple wire

Extra strength, exceptional accuracy: a high strength thermocouple wire that withstands the most demanding applications, particularly those seen in the semiconductor industry.

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Fuel processor catalysts

The HIFUEL® catalyst range is designed specifically for distributed hydrogen generation systems such as those used in reformate fuel cell applications.

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DPFi DPF with electrical regeneration

Diesel particulate filter systems / mining

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SINOx - HT SCR catalyst

JM offers a high temperature SCR catalyst that can operate under a broad range of temperature conditions.

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NOx control systems

Stationary emissions control: Johnson Matthey SCR systems prevent air pollution from stationary diesel and natural gas engines for cleaner energy and cleaner air.

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PURACARE service

PURACARE tailored service is designed to take care of all aspects of operation, maintenance and absorbent/catalyst recycling for our global customers in the Gas Processing industry.

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Three-way catalyst

Stationary emissions control: Johnson Matthey's three-way catalysts prevent air pollution from rich-burn and stoichiometric gas engines.

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SUREOX sulfur resistant oxidation catalyst

Our SUREOX™ catalyst with proprietary washcoat technology designed for reliable durable oxidation performance in the presence of sulfur.

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Diesel particulate filter (DPF) systems for stationary engines

Diesel particulate filter systems / engines

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