| 摘要 |
<p>CATCHMENT PACKS A catchment pack suitable for use in an ammonia oxidation reactor has a predetermined geometric shape and comprises two or more catchment past segments 10 located in planar edge-to-edge relationship one with another, each of said catchment pack segments 10 comprising support gauze segments 11, 12 interleaved with one or more pads 13, 14, 15 of wire formed from a getter material, such as palladium - gold alloy.</p> |
