利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

101 条记录 (耗时 0.04 秒)

    Catalyst beds for non-steady state processes
    3.
    发明授权
    Catalyst beds for non-steady state processes 失效
    用于非稳态过程的催化剂床

    公开(公告)号：US06211113B1

    公开(公告)日：2001-04-03

    申请号：US08711553

    申请日：1996-09-10

    申请人： Klaus Harth ,  Alfred Hagemeyer ,  Otto Watzenberger

    发明人： Klaus Harth ,  Alfred Hagemeyer ,  Otto Watzenberger

    IPC分类号： B01J2724

    CPC分类号： B01J37/34 ,  B01J27/24 ,  B01J33/00 ,  B01J37/0238 ,  B01J37/0244 ,  Y10T428/12181 ,  Y10T428/2991 ,  Y10T428/2993

    摘要： A layered catalyst support or carrier provides a core member for carrying out non-steady state heterogeneously catalyzed processes where reaction gases and their products come in contact with a conventional catalyst applied to the carrier. The support as a carrier is made up of a large number of individually shaped particulate bodies or monolithic packings to be loaded into a reactor and maintained as a fluidized bed or a fixed bed during the non-steady state reaction and the recovery of the products. The support or carrier may consist of glass, quartz, oxides, nitrides, aluminosilicates, magnesium silicates, metals and carbon or their mixtures. Each shaped particle or monolithic packing of this core support is then completely enclosed by depositing thereon a thin protective layer of a nitride, oxide, carbide or chloride of a metal, a non-metal or a mixture thereof, which exhibits a dense, pore-free microstructure and a nonpolar surface having a very low density of acid centers. This outer layer is applied to the core support by a plasma-assisted gas phase deposition. The catalytically active layer is then applied to this protective layer.

    摘要翻译： 层状催化剂载体或载体提供用于进行非稳态异质催化方法的芯构件，其中反应气体及其产物与施加到载体上的常规催化剂接触。 作为载体的载体由大量单独形状的颗粒体或整体填料组成，以在非稳态反应和产物的回收期间装载到反应器中并保持为流化床或固定床。 载体或载体可以由玻璃，石英，氧化物，氮化物，铝硅酸盐，硅酸镁，金属和碳或它们的混合物组成。 然后，通过在其上沉积金属，非金属或它们的混合物的氮化物，氧化物，碳化物或氯化物的薄保护层，将这种芯支撑体的每个成形颗粒或整体式填料完全封闭， 自由微结构和具有非常低的酸中心密度的非极性表面。 通过等离子体辅助气相沉积将该外层施加到芯支撑体上。 然后将催化活性层施加到该保护层。