Manganese-Based Oxidation Catalyst
    11.
    发明申请
    Manganese-Based Oxidation Catalyst 有权
    基于锰的氧化催化剂

    公开(公告)号:US20070072766A1

    公开(公告)日:2007-03-29

    申请号:US11554781

    申请日:2006-10-31

    IPC分类号: B01J27/00

    摘要: A catalyst for the oxidation of volatile organic compounds and carbon monoxide comprising manganese and alumina, such catalyst having been impregnated with a phosphorus compound. The presence of the phosphorus compound results in a significant oxidative conversion of both the volatile organic compounds and the carbon monoxide. The catalyst is especially useful for treating gaseous streams that emanate from industrial sources, such as wood pulp manufacturing plants. The manganese portion of the catalyst is preferably comprised of manganese compounds comprising a defect non-stoichiometric manganese oxide of the type β-Mn3O4+x, wherein x has the value of 0.1≦x≦0.25 in respect to about 80 to about 95% of all manganese atoms, and manganese aluminate in respect to the balance of the manganese atoms. The alumina portion of the catalyst is preferably comprised of high temperature forms of alumina of the type comprising α-Al2O3 and (α+δ+θ)-Al2O3.

    摘要翻译: 用于氧化包含锰和氧化铝的挥发性有机化合物和一氧化碳的催化剂,这种催化剂已经用磷化合物浸渍。 磷化合物的存在导致挥发性有机化合物和一氧化碳的显着氧化转化。 催化剂特别适用于处理从工业来源产生的气流,如木浆制造厂。 催化剂的锰部分优选包含锰化合物,其包含类型为β-Mn 3 O 4 + x N的缺陷非化学计量的氧化锰,其中x具有 相对于锰原子的平衡,相对于约80至约95%的所有锰原子,0.1 <= x <= 0.25的值和铝酸锰。 催化剂的氧化铝部分优选由包含α-Al 2 O 3 3和(α+δ+θ)3 Al 3+的类型的高温形式的氧化铝组成, SUB> 2 3。

    Ammonia oxidation catalyst for the coal fired utilities
    16.
    发明申请
    Ammonia oxidation catalyst for the coal fired utilities 有权
    用于燃煤电厂的氨氧化催化剂

    公开(公告)号:US20060182676A1

    公开(公告)日:2006-08-17

    申请号:US11058822

    申请日:2005-02-16

    IPC分类号: B01D53/56

    摘要: A process is described that removes by oxidation the excess ammonia (NH3) gas from flue gases that have been subjected to selective catalytic reduction (SCR) of oxides of nitrogen (NOx) by ammonia injection. The inventive process incorporates a secondary catalyst of precious metal and vanadia on a metal oxide such as titania to catalyze the oxidation of both ammonia and carbon monoxide (CO) while maintaining sulfur dioxide (SO2) levels.

    摘要翻译: 描述了一种通过氧化除去已经经过氮氧化物的选择性催化还原(SCR)的烟道气中的过量氨(NH 3)气体的方法(NO >)。 本发明方法在金属氧化物如二氧化钛上引入贵金属和氧钒的二次催化剂,以催化氨和一氧化碳(CO)的氧化同时保持二氧化硫(SO 2 H 2)水平。