초록 ▼

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 ind

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.

대표청구항 ▼

[We claim:] [1.]a) a catalyst core support consisting of glass initially formed as individually shaped particulate bodies or monolithic packings which are loaded into the interior of said one or more reactors,b) an intermediate layer applied to said core support as a coating to completely cover each

[We claim:] [1.]a) a catalyst core support consisting of glass initially formed as individually shaped particulate bodies or monolithic packings which are loaded into the interior of said one or more reactors,b) an intermediate layer applied to said core support as a coating to completely cover each of said particulate bodies or monolithic packings with a protective pore-free layer having a thickness of from 1 to 10,000 nm, andc) an active catalyst layer consisting of a non-steady state catalyst applied over said intermediate layer, rein said intermediate layer consists of a nitride, oxide, carbide or chloride of a metal, a non-metal or a mixture thereof, and is applied to completely cover each of said individual support members by a plasma-assisted gas phase deposition in order to exhibit a dense, pore-free microstructure and a nonpolar surface having a very low density of acid centers.