Anti-crush strength of the catalyst and molecular sieve methods

Because of different shape and molecular sieve drying, different stress points, said the crush strength of the ways are different. Usually divided into axial (or normal phase) Crushing strength (N / cm2), radial (or lateral phase) Crushing strength (N / cm) and the point Crushing strength (N /%). Where the former surface contact. The latter two are in line contact and point contact, respectively mouth (axis) ,. (Diameter) and. (Dot) said. Strip, ring, shaped spokes reminder
Agents and molecular sieve xh-7 with radial crush strength is represented by dots and spherical crush strength is expressed.
Catalytic Jing large particle size or carrier, such as Raschig rings, a spherical molecular sieve, the board side of the test method can be used to mean value. Small particle size catalyst, is preferably used stacking strength meter, deep extent stacked on top of a volume of the sample under pressure chipping 'as the catalyst for the fine particles, the average number of single V Hang crush strength of the catalyst is not important. Sometimes probably a few percent of the crushing pressure will cause a surge in the catalyst bed was forced to stop.