GB201111180D0 - System and method for generating NO2 - Google Patents

System and method for generating NO2

Info

Publication number
GB201111180D0
GB201111180D0 GB201111180A GB201111180A GB201111180D0 GB 201111180 D0 GB201111180 D0 GB 201111180D0 GB 201111180 A GB201111180 A GB 201111180A GB 201111180 A GB201111180 A GB 201111180A GB 201111180 D0 GB201111180 D0 GB 201111180D0
Authority
GB
United Kingdom
Prior art keywords
catalyst
silver catalyst
silver
hydrogen
soot filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GB201111180A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson Matthey PLC filed Critical Johnson Matthey PLC
Publication of GB201111180D0 publication Critical patent/GB201111180D0/en
Priority to PCT/GB2012/051121 priority Critical patent/WO2012160355A1/en
Priority to GB1208763.1A priority patent/GB2491244B/en
Priority to DE102012208399.5A priority patent/DE102012208399B4/en
Ceased legal-status Critical Current

Links

Abstract

An exhaust system for an internal combustion engine comprises a catalyst chamber, a silver catalyst positioned within the catalyst chamber and means to supply a quantity of hydrogen to the catalyst chamber, wherein the silver catalyst is disposed in one of the following arrangements: (i) the silver catalyst is deposited on a soot filter or as a component of a Catalytic Soot Filter; (ii) the silver catalyst is disposed upstream of a soot filter; and/or (iii) the silver catalyst is disposed upstream of a selective catalytic reduction catalyst, and wherein NO2 is generated by contacting the silver catalyst with hydrogen. A method of generating NO2 comprising the step of passing NO in the presence of a gaseous oxidising agent over a silver catalyst in the presence of a quantity of hydrogen is also disclosed. In both the exhaust system and the method of generating NO2 the catalyst may be Ag/Al2O3.
GB201111180A 2011-05-20 2011-06-30 System and method for generating NO2 Ceased GB201111180D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/GB2012/051121 WO2012160355A1 (en) 2011-05-20 2012-05-18 System and method for generating no2
GB1208763.1A GB2491244B (en) 2011-05-20 2012-05-18 System and method for generating no2
DE102012208399.5A DE102012208399B4 (en) 2011-05-20 2012-05-21 System and method for producing NO 2

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201161488480P 2011-05-20 2011-05-20

Publications (1)

Publication Number Publication Date
GB201111180D0 true GB201111180D0 (en) 2011-08-17

Family

ID=44511888

Family Applications (2)

Application Number Title Priority Date Filing Date
GB201111180A Ceased GB201111180D0 (en) 2011-05-20 2011-06-30 System and method for generating NO2
GB1208763.1A Expired - Fee Related GB2491244B (en) 2011-05-20 2012-05-18 System and method for generating no2

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1208763.1A Expired - Fee Related GB2491244B (en) 2011-05-20 2012-05-18 System and method for generating no2

Country Status (3)

Country Link
DE (1) DE102012208399B4 (en)
GB (2) GB201111180D0 (en)
WO (1) WO2012160355A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902487A (en) 1988-05-13 1990-02-20 Johnson Matthey, Inc. Treatment of diesel exhaust gases
GB9802504D0 (en) 1998-02-06 1998-04-01 Johnson Matthey Plc Improvements in emission control
JPH11319563A (en) * 1998-05-11 1999-11-24 Mazda Motor Corp Catalyst for purification of exhaust gas
DE10261817A1 (en) * 2002-12-19 2004-07-01 INSTITUT FüR ANGEWANDTE CHEMIE BERLIN-ADLERSHOF E.V. Selective catalytic reduction of nitrogen oxides with ammonia and oxygen, useful for purifying stationary or mobile engine exhaust gas and waste gas from nitric acid manufacture, uses added hydrogen and catalyst containing silver
ITRN20030024A1 (en) 2003-08-08 2005-02-09 Genefast Srl DEVICE FOR THE COLLECTION OF BIOLOGICAL AND / OR CHEMICAL SAMPLES.
US7396517B2 (en) * 2005-08-05 2008-07-08 Gm Global Technology Operations, Inc. Reduction of NOx emissions using a staged silver/alumina catalyst system
US8173574B2 (en) * 2006-09-20 2012-05-08 Basf Corporation Catalysts to reduce NOx in an exhaust gas stream and methods of preparation
JP5144220B2 (en) * 2007-11-08 2013-02-13 本田技研工業株式会社 Exhaust gas purification device for internal combustion engine
US8245500B2 (en) * 2008-07-07 2012-08-21 Delphi Technologies, Inc. Dual catalyst NOx reduction system for exhaust from lean burn internal combustion engines
US8178064B2 (en) * 2009-05-11 2012-05-15 Basf Corporation Treatment of power utilities exhaust
EP2301650B1 (en) * 2009-09-24 2016-11-02 Haldor Topsøe A/S Process and catalyst system for scr of nox

Also Published As

Publication number Publication date
DE102012208399A1 (en) 2012-11-22
GB2491244A (en) 2012-11-28
GB201208763D0 (en) 2012-07-04
DE102012208399B4 (en) 2015-06-11
GB2491244B (en) 2014-05-07
WO2012160355A1 (en) 2012-11-29

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)