Johnson Matthey Public Limited Company

Other

Johnson Matthey Catalysts (germany) Gmbh

Thomas Yeh

Kevin Doura

Jing Lu

Nicholas McNamara

John Kilmartin

Andrew Scullard

Joseph Michael Fedeyko

Paul Joseph Andersen

Dirk Reichert

David Repp

Harald Scherbel

Henry Arthur Claxton

Anthony Ferraro

Harald Schreiber

Cindy Khalaf

Kenneth Koehler

Olivier Leroux

An ammonia-burning combustion engine. In particular, the present invention relates to an internal combustion engine for the combustion of ammonia, the engine comprising one or more combustions chambers comprising an ammonia combustion catalyst. The invention further relates to a method for operating an internal combustion engine by the combustion of ammonia, the method comprising contacting ammonia with a heated ammonia combustion catalyst in a combustion chamber of the engine to combust the ammonia.

Ammonia-burning combustion engine

The invention relates to an exhaust system for the treatment of an exhaust gas comprising ammonia in an amount of up to 250 ppm, the system comprising: an exhaust gas inlet; an ammonia storage material arranged to receive an exhaust gas from the exhaust gas inlet; an ammonia oxidation catalyst arranged downstream of a selected portion of the ammonia storage material; and a heating device for heating gas before it passes through the selected portion of the ammonia storage material to release ammonia stored therein for treatment on the ammonia oxidation catalyst, wherein the system is configured so that the selected portion of the ammonia storage material changes over time. The invention further relates to a livestock house comprising the exhaust system and a method of treating an ammonia-containing gas.

Exhaust gas treatment system

An exhaust system for the treatment of an exhaust gas comprising a species to be treated, the system comprising: a first gas inlet for providing a flow of exhaust gas; a second gas inlet for providing a flow of heated gas; a plurality of sorbent beds for releasably storing the species; one or more catalysts for decomposing the species; first and second exhaust gas outlets; and a valve system configured to establish independently for each sorbent bed fluid communication in a first or second configuration, wherein: i) in the first configuration the flow of the exhaust gas from the first gas inlet contacts a sorbent bed for storing the species and then passes to the first gas outlet; and ii) in the second configuration the flow of heated gas from the second gas inlet contacts a sorbent bed for releasing the species, passes to one of the one or more catalysts and then passes to the second exhaust gas outlet; wherein the valve system is configured to ensure that at least one sorbent bed is in the first configuration and, preferably at least one other sorbent bed is in the second configuration.

The present invention relates to a system for ammonia combustion and exhaust gas treatment, the system comprising: an internal combustion engine for combusting ammonia; and an exhaust system comprising an intake for receiving an exhaust gas from the combustion engine, an upstream injector for adding hydrogen gas to the exhaust gas and a downstream catalyst article, wherein the downstream catalyst article comprises a three-way catalyst (TWC) composition. The invention further relates to a method for the treatment of an exhaust gas from an ammonia internal combustion engine.

Exhaust system for an ammonia-burning combustion engine

A method of extending the useful life of an aged selective catalytic reduction (SCR) catalyst bed, which catalyses the conversion of oxides of nitrogen (NO) to dinitrogen (N) in the presence of a nitrogenous reductant, in the exhaust gas after treatment system of a stationary source of NOso that the exhaust gas emitted to atmosphere from the system continues to meet proscribed limits for both NOand ammonia emissions, which method comprising the step of retrofitting an additional honeycomb substrate monolith or a plate-type substrate comprising a catalyst (ASC) for converting ammonia in exhaust gas also containing oxygen to nitrogen and water downstream of the aged SCR catalyst bed, wherein the kNOof the honeycomb substrate monolith comprising the catalyst for converting ammonia in exhaust gas also containing oxygen to nitrogen and water is greater than or equal to 80 m/hr between 300 and 400&#xb0; C. inclusive, wherein kNOx of a sample of the catalyst, which has been aged at 450&#xb0; C. in 10% HO (as steam) in air for 48 hours, is determined by a SCR activity test in a laboratory scale reactor using a gas composition of 50 ppm CO, 30 ppm NO, 36 ppm NH, 15% O, 8% water, 3% CO, balance N.

Method of extending the useful life of an aged SCR catalyst bed in an exhaust system of a stationary source of NOX

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Audubon, PA, United States of America

Thomas Yeh