Method for filling a vertical tube with catalyst particles

Details Method for filling a vertical tube with catalyst particles Method for filling a vertical tube with catalyst particles

2004-08-17

2009-10-06

Keenan, James (Department: 3652)

Material or article handling

Process

Of material charging or discharging of a chamber of a type...

C414S160000, C414S287000, C414S808000

Reexamination Certificate

active

07597529

ABSTRACT:
A method of charging a vertical tube having an internal diameter of 50 mm or less with catalyst particles, which comprises introducing a filling aid into the vertical tube, where the filling aid comprises a flexible elongated body and the ratio of the cross section of the flexible elongated body to the cross section of the tube is from 0.003 to 0.08, and introducing the catalyst particles into the tube.

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Nikolov et al., “Achievements in the Production of Phthalic Anhydride by Vapour Phase Oxidation of o-xylene in Fixed Catalyst Bed”, Rassegne Di Scienza E Tecnologia.
Bohning et al., “Festbettreaktor Mit Stromungstechnisch Gunstigen Katalysator-Korpern,” Chem.-Ing. Tech. 57 (1985), Nr 8, S. 682-684.
Nikolov et al., “Oxidation of o-Xylene Into Phthalic Anhydride in a Reactor With Two Fixed Beds of Vanadium-Titania Catalyst,” Chem. Eng. Process., 25, (1989) 127-131.

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