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US 2006/0233631 A1Published application
Method for filling a vertical tube with catalyst particles
AssigneeBASF SE
InventorsVolker Diehl, Steffen Rissel, Silke Berndt, Mark Duda, Knut Eger, Markus Holzle, Veron Nsunda
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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.
Claims20
A method of charging a vertical tube (1) having an internal diameter of 50 mm or less with catalyst particles (2), which comprises
- introducing a filling aid (3) into the vertical tube (1), 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 (1) is from 0.003 to 0.08 and the filling aid has no elements which extend radially outward from the flexible body and whose projection onto a plane perpendicular to the longitudinal direction of the filling aid has a larger area than the cross section of the flexible body,
- introducing the catalyst particles (2) into the tube (1), and
- withdrawing the filling aid (3) during introduction of the catalyst particles (2) so that the lower end of the filling aid is always above the fill height of the catalyst particles (2) in the tube (1).
Dependencies are inferred from the claim text.