PROCESS FOR MANUFACTURE OF NOX STORAGE MATERIALS

The present invention discloses a process for manufacturing nitrogen oxide storage materials and lean NOx trap catalysts. Also disclosed are nitrogen oxide storage material made by processes comprising barium carbonate (BaCO3) and ceria (CeO2) by using Ba(OH)2 instead of most or all Ba(OOCH3)2 to re...

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Bibliographische Detailangaben
Hauptverfasser:	STOHR ANDREAS, FELLGER JOACHIM, BIDLINGMAIER HERMANN, HILGENDORFF MARCUS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention discloses a process for manufacturing nitrogen oxide storage materials and lean NOx trap catalysts. Also disclosed are nitrogen oxide storage material made by processes comprising barium carbonate (BaCO3) and ceria (CeO2) by using Ba(OH)2 instead of most or all Ba(OOCH3)2 to reduce cost and reduce harmful byproducts. Aspects of the present invention also relate generally to lean NOx trap (LNT) comprising nitrogen oxide storage materials. 本发明公开了制造氮氧化物存储材料和稀燃NO捕集催化剂的方法。还公开了通过包含碳酸钡(BaCO)和二氧化铈(CeO)的方法通过使用Ba(OH)代替多数或者所有Ba(OOCH)以降低成本和减少有害副产物而制备的氮氧化物存储材料。本发明还般性地涉及包含氮氧化物存储材料的稀燃NO捕集器(LNT)。