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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 particulate filter

Mobile emission controls: a diesel particulate filter (DPF) removes particulate matter from diesel exhaust by physical filtration.

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NOx storage catalyst (NSC)

Mobile emission controls: Johnson Matthey’s NSC technology removes NOX from a lean gas stream and converts it to N2.

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Amination technology

Amines are compounds derived from ammonia and contain a nitrogen atom with a lone electron pair. Amination is the process by which an amine group is added to an organic compound.

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iUFC process

FORMOX™ plants are available for integrated direct production of UFC (urea formaldehyde concentrate).

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Substitute natural gas (SNG) process

With over 20 years' experience, Johnson Matthey is the market leader in the supply of SNG catalysts and technology, with our DAVY™ licensed plants providing more than half of global SNG production.

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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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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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Esterification technology

Esters are organic compounds characterised by the RCOOR’ functional group, and are most commonly derived from the reaction of carboxylic acids with alcohols.

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Natural detergent alcohols process

Johnson Matthey has licensed the greatest number of plants worldwide for the production of natural detergent alcohols (NDA), also known as fatty alcohols.

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