74220434
Nov 12, 1991
Oct 27, 1992
ceramic support media including inert catalyst supports and heat exchange supports, the individual elements of which are in the shape of balls, pellets, saddles, berl saddles, raschig rings typically used in random packing of gas/liquid contact towers for dessicant dryers, upflow or downflow reactors, catalystis reforming, heat exchange, hydrotreating, hydrocracking, shift conversion and similar chemical reactions
Chemicals