Patent ID: 6932559
Filing Date: 2005-08-23
Classification: B01J

Abstract:
1. Method of loading particulate catalytic material into a reactor tube comprising providing a loading tube by connecting a number of tube sections having an outer diameter smaller than the inner diameter of the reactor tube, to a final tube length corresponding to the length of the reactor tube; introducing at the top of the loading tube a quantity of the catalyst particles to be loaded into the reactor tube, causing the catalyst particles to pass through the loading tube in a damped motion by providing dampening means within the loading tube; and successively withdrawing the loading tube from the reactor tube in a length corresponding to the loading height of the catalyst particles loaded into the reactor tube, wherein the dampening means are provided by mounting a spirally formed body on the inner wall of each tube section, the spirally formed body being formed from a rod having an arbitrarily shaped cross-section and a maximum dimension in any direction of the cross-section of 1/25-½ of the diameter of the tube section, the spirally formed body in each section having a pitch, with respect to the diameter of the tube section, in the interval of 2-8.