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    • 2. 发明授权
    • Process and device intended for nitrogen oxides elimination in an exhaust line of an internal-combustion engine
    • 用于在内燃机的排气管线中消除氮氧化物的方法和装置
    • US06508057B1
    • 2003-01-21
    • US09457260
    • 1999-12-09
    • Mathias BouchezGil MabilonBrigitte MartinPatrick Bourges
    • Mathias BouchezGil MabilonBrigitte MartinPatrick Bourges
    • F01N300
    • F01N3/0842B01D53/9431F01N3/0814F01N3/0871F01N13/009F01N2610/03F02D2200/0806Y02C20/10Y02T10/24
    • A device for eliminating nitrogen oxides in an exhaust line of a lean-burn internal-combustion engine (1) a NOx trap (3) for trapping the nitrogen oxides, a system for regenerating the nitrogen oxides when the NOx trap is saturated, a hydrocarbon treating catalyst (2) placed upstream from the NOx trap (3), a hydrocarbon injector (4) placed upstream from hydrocarbon treating catalyst (2), a probe (7) for measuring the gas mixture strength. The hydrocarbon treating catalyst (2) is a partial (or controlled) hydrocarbon oxidation catalyst that cooperates with the NOx trap (3) for trapping the nitrogen oxides and that allows to obtain, at the outlet thereof, gases with a low oxygen (O2) concentration and with high carbon monoxide (CO) and hydrogen (H2) concentrations. A control unit is furthermore provided for recording and processing data coming from various detectors and/or stored in order to carry out effective regeneration of the NOx trap (3) without disrupting the smooth running of the engine.
    • 一种用于消除稀燃内燃机(1)的排气管中的氮氧化物的装置,用于捕获氮氧化物的NOx捕集器(3),当NOx捕集器饱和时再生氮氧化物的系统, 处理催化剂(2),放置在NOx捕集器(3)的上游,位于烃处理催化剂(2)上游的烃喷射器(4),用于测量气体混合物强度的探针(7)。烃处理催化剂(2) 是与NOx捕集器(3)配合以捕获氮氧化物的部分(或受控)烃氧化催化剂,并且允许在出口处获得具有低氧(O 2)浓度和高一氧化碳的气体 CO)和氢(H 2)浓度。此外还提供用于记录和处理来自各种检测器和/或存储的数据的控制单元,以便在不中断e的平稳运行的情况下进行NOx捕集器(3)的有效再生 ngine。
    • 5. 发明授权
    • Production process for catalysts on supports including a centrifuging
step for the support after coating
    • 催化剂在载体上的制备方法,包括涂布后的载体的离心步骤
    • US5723403A
    • 1998-03-03
    • US282468
    • 1994-07-29
    • Daniel DurandGil MabilonIsabelle Guibard
    • Daniel DurandGil MabilonIsabelle Guibard
    • B01J23/89B01J35/04B01J37/02B01J23/02B01J23/10B01J23/38
    • B01J37/0242B01J37/0215B01J23/894B01J35/04
    • A production process for supported catalysts is described comprising: (a) preparing a coating suspension containing at least one refractory inorganic oxide and at least some of the elements intended to constitute catalytically active phase (A); (b) filling at least part of the open porosity of a support with this suspension; (c) drying the filled support by centrifuging; (d) a thermal treatment of the support to obtain a support coated by a wash coat; (e) optionally impregnating the coated support with a solution containing the rest of, or elements of, catalytically active phase (A); and (f) thermally activating the catalyst. This preparation process is of particular interest in the production of catalysts for treating exhaust gases of internal combustion engines, where the wash coat deposited on a support comprises in particular a refractory inorganic oxide, iron oxide and cerium oxide and, by way of a catalytically active element, at least one noble metal such as platinum, rhodium or palladium.
    • 描述了负载催化剂的制备方法,其包括:(a)制备包含至少一种耐火无机氧化物和至少一些旨在构成催化活性相(A)的元素的涂料悬浮液; (b)用该悬浮液填充载体的至少部分开放孔隙; (c)通过离心干燥填充的支架; (d)对所述载体进行热处理以获得由洗衣层涂覆的载体; (e)任选地用包含催化活性相(A)的其余部分或元素的溶液浸渍涂覆的载体; 和(f)热活化催化剂。 这种制备方法在生产用于处理内燃机废气的催化剂中特别有意义,其中沉积在载体上的洗涤涂层特别包括耐火无机氧化物,氧化铁和氧化铈,并且通过催化活性 元素,至少一种贵金属如铂,铑或钯。
    • 6. 发明授权
    • Process for catalytic combustion of a fuel in the presence of a
non-selective oxidation catalyst
    • 在非选择性氧化催化剂存在下催化燃烧燃料的方法
    • US5915951A
    • 1999-06-29
    • US770771
    • 1996-12-20
    • Patrick EuzenEric TocqueStephane ReboursGil Mabilon
    • Patrick EuzenEric TocqueStephane ReboursGil Mabilon
    • B01D53/94B01J23/89
    • B01J23/894B01D53/944
    • Processes for the catalytic combustion of hydrocarbons, carbon monoxide, hydrogen, or mixtures thereof (processes with one or more catalytic stages) and processes of abating the pollution produced by the exhaust gases of vehicles that run on natural gas using a non-selective oxidation catalyst. The non-selective oxidation catalyst comprises a monolithic substrate, a porous support with a refractory inorganic oxide base and an active phase that consists of cerium, zirconium, iron, and at least one metal that is selected from the group that is formed by palladium and platinum is described; with the porous support content being between 200 and 400 g per liter of catalyst; with the cerium content being between 0.3 and 20% by weight relative to the porous support; with the zirconium content being between 0.3 and 20% by weight relative to the porous support; with the iron content being between 0.01 and 3.5% of iron by weight relative to the porous support; and with the palladium and/or platinum content being higher than 3 g per liter of catalyst.
    • 用于烃,一氧化碳,氢气或其混合物(具有一个或多个催化级的方法)的催化燃烧的方法以及减轻使用非选择性氧化催化剂在天然气上运行的车辆废气产生的污染的方法 。 非选择性氧化催化剂包括整体式底物,具有耐火无机氧化物碱的多孔载体和由铈,锆,铁和至少一种金属组成的活性相,所述金属选自钯和 铂描述; 多孔载体含量在每升催化剂200至400g之间; 铈含量相对于多孔载体为0.3至20重量%; 锆含量相对于多孔载体为0.3至20重量%; 铁含量相对于多孔载体为铁的重量的0.01%至3.5%; 并且钯和/或铂含量高于3g / l催化剂。
    • 8. 发明授权
    • Method for preparing multi-metal catalysts
    • 制备多金属催化剂的方法
    • US5413984A
    • 1995-05-09
    • US934515
    • 1992-10-13
    • Patrice MarecotJacques BarbierGil MabilonDaniel DurandMichel Prigent
    • Patrice MarecotJacques BarbierGil MabilonDaniel DurandMichel Prigent
    • B01D53/94B01J23/38B01J23/44B01J23/46B01J23/70B01J23/89B01J37/02
    • B01J23/38B01J23/70B01J37/0205
    • A method for preparing multi-metal catalysts including an active phase consisting of at least two metals, A and B, which are selected from groups VIII and IB of the periodic table, and a porous support. According to the method: firstly, at least a part of the porous support is impregnated with at least one precursor of metal A; secondly, activation is performed in a neutral or oxidizing atmosphere at a temperature of 120.degree.-800.degree. C. whereafter a treatment is carried out in a reduction medium at a temperature of 0.degree.-800.degree. C.; thirdly, at least a part of the support which was previously impregnated with the precursor of metal A is impregnated with at least one precursor of metal B; and fourthly, activation is performed in a neutral or oxidizing atmosphere at a temperature of 120.degree.-800.degree. C. The catalysts thereby obtained have improved stability, particularly when subjected to high temperatures, such as when they are used as post-combustion catalysts for exhaust gases from internal combustion engines, in which case metal A is platinum or palladium and metal B is platinum, palladium or rhodium, with the proviso that B is not the same as A.
    • PCT No.PCT / FR91 / 00969 Sec。 371日期:1992年10月13日 102(e)日期1992年10月13日PCT 1991年12月4日PCT PCT。 出版物WO92 / 11086 日期:1992年7月9日。一种制备多金属催化剂的方法,包括由至少两种选自元素周期表Ⅷ和IB的金属A和B组成的活性相和多孔载体。 根据该方法:首先,至少一部分多孔载体用至少一种金属A的前体浸渍; 其次,在中性或氧化性气氛中在120-800℃的温度下进行活化,然后在还原介质中在0-800℃的温度下进行处理。 第三,先前用金属A的前体浸渍的载体的至少一部分用至少一种金属B的前体浸渍; 第四,在中性或氧化性气氛中,在120-800℃的温度下进行活化。由此获得的催化剂具有改善的稳定性,特别是当经受高温时,例如当它们用作后燃催化剂 来自内燃机的废气,在这种情况下,金属A为铂或钯,金属B为铂,钯或铑,条件是B与A不同。