摘要:
Use of a ternary vanadate of formula (I): Fe x MeI y MeII z VO 4 wherein MeI and MeII are different from each other and each stand for an element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Er, Gd, Tb, Dy, Ho, Tm, Yb, Lu, Al, Bi and Sb and wherein x = 0.05-0.9; y = 0.05-0.9; z = 0.05-0.9; x + y + z =1, as a catalyst for the oxidation of carbonaceous compounds in combustion engines.
摘要翻译:式(I)的三元钒酸盐的用途:FeCl 3·MeI·yMeII·z·VO· 其中Me1和MeII彼此不同并且各自表示选自Y,La,Ce,Pr,Nd,Sm,Er,Gd,Tb,Dy,Ho,Tm, Yb,Lu,Al,Bi和Sb,其中x = 0.05-0.9; y = 0.05-0.9; z = 0.05-0.9; x + y + z = 1,作为内燃机中含碳化合物氧化的催化剂。 p>
摘要:
A catalyst composition comprising a vanadate represented by the formula XVO 4 /S, wherein XVO 4 stands for a Bi-, Sb-, Ga- and/or Al-vanadate optionally in mixture with one or more rare earth metal-vanadates, or in mixture with one or more transition metal-vanadates, or in mixture with one or more transition metal-vanadates and one or more rare earth metal-vanadates, and S is a support comprising TiO 2 , optionally in combination with a dopant and a process for the preparation of such catalyst compositions.
摘要:
A catalyst composition represented by the general formula XVO 4 /S wherein XVO 4 stands for TransitionMetal-Vanadate, or a mixed TransitionMetal-/RareEarth-Vanadate, and S is a support comprising TiO 2 .
摘要:
Catalyst composition represented by the general formula REVO/S wherein RE is at least one of the group of rare earth metals Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Er and Yb in an amount of up to 6.0 wt.-%; V is vanadium in an amount of 0.2-2.5 wt.-%; O is oxygen in an amount of up to 3,5 wt.-%; and S is a support containing TiO 2 in an amount of at least 70 wt.-%, with the rest being WO 3 and optionally SiO 2 . This catalyst composition shows high removal efficiencies for NO x even after aging at 750°C.