PROCESS FOR SMALL-SCALE TESTING OF FCC CATALYSTS

摘要

The present invention pertains to a process for testing FCC catalysts on a small scale wherein: (a) the feed to be cracked is heated to a temperature between 50 and 500~C; (b) the heated feed is injected into a riser reactor containing the FCC catalyst to be tested having a temperature between 500 an d 800~C, the injection time being less than 2 seconds; (c) the feed is contact ed with the FCC catalyst under fluidised conditions for a contact time of less than 8 seconds, and; (d) the feed is stripped from the FCC catalyst and the properties of the product are analysed. With the process of the invention th e mass transfer and diffusion limitations of commercial FCC units are properly simulated.