抗二氧化硫型低温锰-铁氧化物脱硝催化剂及其制备方法

    公开(公告)号:WO2016078292A1

    公开(公告)日:2016-05-26

    申请号:PCT/CN2015/076060

    申请日:2015-04-08

    Applicant: 福州大学

    CPC classification number: B01J23/889

    Abstract: 本发明属于烟气脱硝领域,具体涉及一种抗二氧化硫型低温锰-铁氧化物脱硝催化剂及其制备方法。该脱硝催化剂由碳纳米管(CNTs)载体,锰-铁氧化物(Mn-FeO x )活性组分组成。通过掺杂铁氧化物,得到抗SO 2 型低温Mn-FeO x /CNTs催化剂,所制备的催化剂具有低温(80~180℃)活性优异、抗SO 2 性能显著和制备工艺简单等优点。

    CATALYST FOR SELECTIVE OXIDATION OF NH3 TO N2 AND METHOD FOR PREPARING THE SAME
    8.
    发明申请
    CATALYST FOR SELECTIVE OXIDATION OF NH3 TO N2 AND METHOD FOR PREPARING THE SAME 审中-公开
    用于将NH 3选择性氧化成N2的催化剂及其制备方法

    公开(公告)号:WO2011062390A2

    公开(公告)日:2011-05-26

    申请号:PCT/KR2010007810

    申请日:2010-11-19

    Abstract: The present invention provides a catalyst which can convert ammonia contained in exhaust gas from an engine of a vehicle equipped with a Urea-SCR(Urea-Selective Catalytic Reduction) system, to nitrogen(N2), and a method for preparating the same. Particularly, when a urea solution is injected to exhaust gas from a vehicle equipped with a Urea-SCR system, the injected urea is decomposed to ammonia(NH3) at the temperature of exhaust gas, and then the ammonia is fed to a SCR catalyst system together with nitrogen oxides (NOx) contained in exhaust gas, wherein the NOx are later converted to N2. The present invention relates to a catalyst which can convert ammonia which is failed to participate in a conversion reaction of NOx to N2 and slipped out of the SCR catalyst, to nitrogen via a SCO(Selective Catalytic Oxidation) reaction, before the ammonia is released to the air. The present invention relates to a catalyst for conversion of ammonia to nitrogen via selective oxidation of ammonia, characterized in that a carrier is coated to a support, and then palladium and either of nickel or manganese are supported on the resulted carrier; and to a method for preparing the same. In addition, the present inveniotn relates to a method for reducing ammonia by using the catalyst as a catalyst for selective oxidation of ammonia.

    Abstract translation: 本发明提供一种催化剂及其制备方法,所述催化剂能够将从装备有尿素SCR(尿素选择性催化还原)系统的车辆的发动机排出的废气中的氨转化为氮气(N 2)。 特别是,当尿素溶液被喷射到装备有尿素SCR系统的车辆的排气中时,喷射的尿素在排气温度下分解成氨(NH 3),然后将氨供给到SCR催化剂系统 与排气中所含的氮氧化物(NOx)一起,其中NOx随后转化为N2。 本发明涉及一种催化剂,其能够在将氨释放到氨气之前将未参与NOx的转化反应的氨转化成N2并从SCR催化剂中逸出,经由SCO(选择性催化氧化)反应转化为氮气 空气。 本发明涉及一种通过氨的选择性氧化将氨转化为氮的催化剂,其特征在于将载体涂覆到载体上,然后将钯和镍或锰中的任一种负载在所得载体上; 并涉及其制备方法。 另外,本发明涉及通过使用该催化剂作为用于选择性氧化氨的催化剂来减少氨的方法。

    A PROCESS FOR PRODUCING HYDROCARBONS, AND A CATALYST SUITABLE FOR USE IN THE PROCESS
    10.
    发明申请
    A PROCESS FOR PRODUCING HYDROCARBONS, AND A CATALYST SUITABLE FOR USE IN THE PROCESS 审中-公开
    生产碳氢化合物的方法和适用于该方法的催化剂

    公开(公告)号:WO01076736A1

    公开(公告)日:2001-10-18

    申请号:PCT/EP2001/004072

    申请日:2001-04-06

    Abstract: The invention relates to a novel process for producing hydrocarbons, which process comprises contacting a mixture of carbon monoxide and hydrogen at elevated temperature and pressure with a catalyst comprising a Group VIII metal supported on a carrier, which Group VIII metal is present at least partly in metallic form, and which catalyst further comprises inorganic phosphate in a quantity of at least 0.05 %w, calculated as elemental phosphorus relative to the weight of the catalyst; a novel catalysts which comprises, supported on a carrier, a Group VIII metal selected from nickel, cobalt, iron and ruthenium, and a further metal selected from manganese, vanadium, zirconium and rhenium, which catalyst further comprises inorganic phosphate in a quantity of at least 0.05 %w, calculated as elemental phosphorus relative to the weight of the catalyst; and a process for preparing the novel catalyst composition.

    Abstract translation: 本发明涉及一种用于生产烃的新方法,该方法包括在高温和高压下使一氧化碳和氢气的混合物与负载在载体上的第Ⅷ族金属的催化剂接触,Ⅷ族金属至少部分存在于 金属形式,并且该催化剂还包含相对于催化剂的重量计,其量为至少0.05%w的无机磷酸盐,以元素磷计算; 一种新型催化剂,其包含负载在载体上的选自镍,钴,铁和钌的第Ⅷ族金属,以及选自锰,钒,锆和铼的另外的金属,该催化剂还包含一定量的无机磷酸盐 以相对于催化剂重量的元素磷计算的最小值为0.05%w; 以及制备新型催化剂组合物的方法。

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