POST-COMBUSTION CATALYSTS

POST-COMBUSTION CATALYSTS

The invention relates to catalysts for the treatment of combustion gases. The catalysts include an active phase of the perovskite t e having the general formula: Lx?L'1-x?My?M'z?$g(F)1-y-z?O3?, wherein L is an element selected amongst lanthanides and rare earths, L' is an element sele...

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Hauptverfasser: XIAN, HUA, MONCEAUX, LAURENCE, ANNIE, COURTINE, PIERRE, EUGENE, SRI RAHAYU, W
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
WEAPONS
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creator XIAN, HUA
MONCEAUX, LAURENCE, ANNIE
COURTINE, PIERRE, EUGENE
SRI RAHAYU, W
description The invention relates to catalysts for the treatment of combustion gases. The catalysts include an active phase of the perovskite t e having the general formula: Lx?L'1-x?My?M'z?$g(F)1-y-z?O3?, wherein L is an element selected amongst lanthanides and rare earths, L' is an element selected amongst Sr, Ca, Ba, Ce, K, Bi, Rb or Na; M is a transition metal selected amongst Cr, Mn, Fe, Co, Ni or Cu; M' is at least one metal selected amongst Pt, Ru, Pd, Rh; $g(F) is a cationic lacuna; 0
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The catalysts include an active phase of the perovskite t e having the general formula: Lx?L'1-x?My?M'z?$g(F)1-y-z?O3?, wherein L is an element selected amongst lanthanides and rare earths, L' is an element selected amongst Sr, Ca, Ba, Ce, K, Bi, Rb or Na; M is a transition metal selected amongst Cr, Mn, Fe, Co, Ni or Cu; M' is at least one metal selected amongst Pt, Ru, Pd, Rh; $g(F) is a cationic lacuna; 0&lt;x&lt;0.5, 0.85&lt;y1, 0z&lt;0.08, with 0.85&lt;y+z1. 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The catalysts include an active phase of the perovskite t e having the general formula: Lx?L'1-x?My?M'z?$g(F)1-y-z?O3?, wherein L is an element selected amongst lanthanides and rare earths, L' is an element selected amongst Sr, Ca, Ba, Ce, K, Bi, Rb or Na; M is a transition metal selected amongst Cr, Mn, Fe, Co, Ni or Cu; M' is at least one metal selected amongst Pt, Ru, Pd, Rh; $g(F) is a cationic lacuna; 0&lt;x&lt;0.5, 0.85&lt;y1, 0z&lt;0.08, with 0.85&lt;y+z1. 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The catalysts include an active phase of the perovskite t e having the general formula: Lx?L'1-x?My?M'z?$g(F)1-y-z?O3?, wherein L is an element selected amongst lanthanides and rare earths, L' is an element selected amongst Sr, Ca, Ba, Ce, K, Bi, Rb or Na; M is a transition metal selected amongst Cr, Mn, Fe, Co, Ni or Cu; M' is at least one metal selected amongst Pt, Ru, Pd, Rh; $g(F) is a cationic lacuna; 0&lt;x&lt;0.5, 0.85&lt;y1, 0z&lt;0.08, with 0.85&lt;y+z1. The catalysts of the invention are particularly useful for purifying exhaust gas from diesel engines, particularly for the removal of soot.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects BLASTING
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
WEAPONS
title POST-COMBUSTION CATALYSTS
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