A hollow, saddle-shaped packing structure 14 includes a pair of porous outer and inner semi-cylindrical side walls 22, 34 that are spaced from one another to define an interior space 40, and a particulate catalyst component 20 retained in the interior space between the side walls. The packing structure may be formed by a pair of saddle-shaped shell elements 16, 18, each of which presents one of the side walls and a pair of radially opposed laterally extending flanges 26, 38. The flanges are connected together by tabs 30, 32, welding, or the like, and the interior space between axially spaced marginal edges 24, 36 of the outer and inner shell elements is closed off to retain the particulate catalyst component between the side walls.

Uma cavidade, a estrutura de embalagem sel-dada forma 14 inclui um par das paredes laterais semi-cylindrical exteriores e internas porosas 22, 34 que são espaçadas de uma outra para definir um espaço interior 40, e um componente particulate 20 do catalizador retido no espaço interior entre as paredes laterais. A estrutura da embalagem pode ser dada forma por um par dos elementos sel-dados forma 16 do escudo, 18, cada um de que os presentes um das paredes laterais e de um par lateralmente de estender radial oposto flangeiam 26, 38. As flanges são conectadas junto as abas 30, 32, soldar, ou pelo gosto, e o espaço interior entre as bordas marginais axialmente espaçadas 24, 36 dos elementos do escudo exterior e interno é fechado fora para reter o componente particulate do catalizador entre as paredes laterais.

 
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