"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
|4402349||Process and apparatus for charging tubular reactors with granular solids, more particularly catalysts|
A mechanical process for filling the tubes (3) of tubular reactors with granular solids, e.g. catalysts, wherein two or more streams of material, e.g. of different catalytic activity, can be introduced in a controlled manner into each tube (3) which is to...