| 主权项 |
1. A catalyst structure suitable for use in an ammonia oxidation process, comprising a plurality of shaped catalyst units supported on one or more members in a spaced relationship that allows the structure to flex,
wherein the shaped catalyst units are pellets or extrudates with maximum and minimum dimensions in the range 1.5 to 20 mm, and an aspect ratio less than 3, the supporting members are metal or ceramic wires, which may be wound into cables, and the separation of adjacent shaped catalyst units is in the range 1-10 mm, and wherein the catalyst structure is disposed on a support mesh. |
