Method for packing solid catalyst

Details Method for packing solid catalyst Method for packing solid catalyst

2006-12-12

2006-12-12

Douglas, Steven O. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Processes

C141S286000, C414S299000

Reexamination Certificate

active

07147011

ABSTRACT:
A method for packing a solid catalyst is provided, whereby the pressure loss of a reaction tube packed with the catalyst can be reduced.The method is characterized in that prior to packing a solid catalyst in a reactor, the solid catalyst is sieved to remove a cracked catalyst. For example, sieving is carried out against a solid catalyst of a columnar or cylindrical shape having an outer diameter A being larger than the length B in the axial direction by using a sieve having a sieve mesh with a width C satisfying the condition of A>C>B and a length being at least the width, or against a solid catalyst of a columnar or cylindrical shape with an outer diameter A being from 1 to 0.5 time the length B in the axial direction by using a sieve having a sieve mesh with a width C satisfying the condition of A>C>0.5B and a length being at least the width.

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patent: WO 03/057653 (2003-07-01), None

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