METHOD FOR OPERATING AN SCR CATALYST AND SCR-CATALYST SYSTEM
The invention relates to a method for operating an SCR catalyst system (14) for an internal combustion engine (10) with an SCR catalyst (16) which is suitable for storing a reduction means, and with the involvement thereof for reducing nitrogen oxides (NOx) in the exhaust gas. The reduction means or...
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| creator | HORN, ANDRE GOTTSCHLING, MARTINA BULLERT, JOERN WENDENBURG, STEFAN BROEMER, ARNE HERR, ANDREAS |
| description | The invention relates to a method for operating an SCR catalyst system (14) for an internal combustion engine (10) with an SCR catalyst (16) which is suitable for storing a reduction means, and with the involvement thereof for reducing nitrogen oxides (NOx) in the exhaust gas. The reduction means or a chemical preliminary stage thereof is stored in a storage receptacle (22), and from there is fed via a metering and supply system (18) and, if appropriate, a preparation system, to the SCR catalyst (16). It is provided that at least a partial flow of air flowing into the storage receptacle (22), or air present in the storage receptacle (22), is conditioned in such a way that the relative and/or the specific air humidity of the air in the storage receptacle (22) is reduced. Due to the conditioning of the air, according to the invention, an adsorption of water by the reduction means, which is in particular urea, is prevented. |
| format | Patent |
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The reduction means or a chemical preliminary stage thereof is stored in a storage receptacle (22), and from there is fed via a metering and supply system (18) and, if appropriate, a preparation system, to the SCR catalyst (16). It is provided that at least a partial flow of air flowing into the storage receptacle (22), or air present in the storage receptacle (22), is conditioned in such a way that the relative and/or the specific air humidity of the air in the storage receptacle (22) is reduced. Due to the conditioning of the air, according to the invention, an adsorption of water by the reduction means, which is in particular urea, is prevented.</description><language>eng ; fre ; ger</language><subject>BLASTING ; ENGINE PLANTS IN GENERAL ; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES ; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL ; HEATING ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; STEAM ENGINES ; TRANSPORTING ; WEAPONS</subject><creationdate>2010</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20100331&DB=EPODOC&CC=EP&NR=2061957B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25546,76297</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20100331&DB=EPODOC&CC=EP&NR=2061957B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HORN, ANDRE</creatorcontrib><creatorcontrib>GOTTSCHLING, MARTINA</creatorcontrib><creatorcontrib>BULLERT, JOERN</creatorcontrib><creatorcontrib>WENDENBURG, STEFAN</creatorcontrib><creatorcontrib>BROEMER, ARNE</creatorcontrib><creatorcontrib>HERR, ANDREAS</creatorcontrib><title>METHOD FOR OPERATING AN SCR CATALYST AND SCR-CATALYST SYSTEM</title><description>The invention relates to a method for operating an SCR catalyst system (14) for an internal combustion engine (10) with an SCR catalyst (16) which is suitable for storing a reduction means, and with the involvement thereof for reducing nitrogen oxides (NOx) in the exhaust gas. The reduction means or a chemical preliminary stage thereof is stored in a storage receptacle (22), and from there is fed via a metering and supply system (18) and, if appropriate, a preparation system, to the SCR catalyst (16). It is provided that at least a partial flow of air flowing into the storage receptacle (22), or air present in the storage receptacle (22), is conditioned in such a way that the relative and/or the specific air humidity of the air in the storage receptacle (22) is reduced. Due to the conditioning of the air, according to the invention, an adsorption of water by the reduction means, which is in particular urea, is prevented.</description><subject>BLASTING</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES</subject><subject>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SEPARATION</subject><subject>STEAM ENGINES</subject><subject>TRANSPORTING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2010</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDxdQ3x8HdRcPMPUvAPcA1yDPH0c1dw9FMIdg5ScHYMcfSJDA4B8l1AArpwgWAg4erLw8CalphTnMoLpbkZFNxcQ5w9dFML8uNTiwsSk1PzUkviXQOMDMwMLU3NnQyNiVACAKttKSg</recordid><startdate>20100331</startdate><enddate>20100331</enddate><creator>HORN, ANDRE</creator><creator>GOTTSCHLING, MARTINA</creator><creator>BULLERT, JOERN</creator><creator>WENDENBURG, STEFAN</creator><creator>BROEMER, ARNE</creator><creator>HERR, ANDREAS</creator><scope>EVB</scope></search><sort><creationdate>20100331</creationdate><title>METHOD FOR OPERATING AN SCR CATALYST AND SCR-CATALYST SYSTEM</title><author>HORN, ANDRE ; GOTTSCHLING, MARTINA ; BULLERT, JOERN ; WENDENBURG, STEFAN ; BROEMER, ARNE ; HERR, ANDREAS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2061957B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2010</creationdate><topic>BLASTING</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES</topic><topic>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SEPARATION</topic><topic>STEAM ENGINES</topic><topic>TRANSPORTING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>HORN, ANDRE</creatorcontrib><creatorcontrib>GOTTSCHLING, MARTINA</creatorcontrib><creatorcontrib>BULLERT, JOERN</creatorcontrib><creatorcontrib>WENDENBURG, STEFAN</creatorcontrib><creatorcontrib>BROEMER, ARNE</creatorcontrib><creatorcontrib>HERR, ANDREAS</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HORN, ANDRE</au><au>GOTTSCHLING, MARTINA</au><au>BULLERT, JOERN</au><au>WENDENBURG, STEFAN</au><au>BROEMER, ARNE</au><au>HERR, ANDREAS</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR OPERATING AN SCR CATALYST AND SCR-CATALYST SYSTEM</title><date>2010-03-31</date><risdate>2010</risdate><abstract>The invention relates to a method for operating an SCR catalyst system (14) for an internal combustion engine (10) with an SCR catalyst (16) which is suitable for storing a reduction means, and with the involvement thereof for reducing nitrogen oxides (NOx) in the exhaust gas. The reduction means or a chemical preliminary stage thereof is stored in a storage receptacle (22), and from there is fed via a metering and supply system (18) and, if appropriate, a preparation system, to the SCR catalyst (16). It is provided that at least a partial flow of air flowing into the storage receptacle (22), or air present in the storage receptacle (22), is conditioned in such a way that the relative and/or the specific air humidity of the air in the storage receptacle (22) is reduced. Due to the conditioning of the air, according to the invention, an adsorption of water by the reduction means, which is in particular urea, is prevented.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TRANSPORTING WEAPONS |
| title | METHOD FOR OPERATING AN SCR CATALYST AND SCR-CATALYST SYSTEM |
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