Automatic attrition fluidized bed tester by air jet for various catalysts including FCC designed to determine the comparative characteristics of attrition of FCC by friction of an air jet according to ASTM D5757-11.
It is used for testing with particles of spherical of irregular shape (size from 10 to 180 microns).
Abrasion is achieved by fluidizing the sample with moist air jets. The percentage of fines (less than 20 microns) after the 5 hour test is the Air Jet Abrasion Index (AJI).
Operating pressure range, MPa for apparatus gas supply
Range of air flow for apparatus gas supply, at least (I/min)
Absolute deviation of maintaining air flow at a flow rate of 10 I/min., I/min.
Input power no more than, kW
Overall dimensions, mm
Abrasion pipe made of steel 12x18 hi Ot with dimensions, mm
Three sapphire nozzles, diameter and length, mm
0,381 ±0,005, 2±1,0
Control: microprocessor with tactile control for setting the display and automatic maintenance of the installation parameters and mathematical processing of the analysis results
Convergence of results when testing the same catalyst
not more than 0,1%
Automatic maintenance of air flow rate and its humidity.
Measurement and registration of changes in pressure in the expansion tank.
Automatic removal of catalyst residues from the walls of the expansion tank.