EVALUATION OF RESIDUE FCC CATALYSTS

The processing of residues in FCC units has become a held of considera ble interest over the past few years. The goal of our own work within this area, which has now extended over several years, has been to iden tify catalysts which are capable of giving improved process economy. I n order to find the most suitable catalysts, and to understand why som e catalysts are more suitable than others, a broad range of physical a nd chemical test methods have been employed. Those test methods employ ed by us are discussed in the current paper, exemplified by an authent ic evaluation. The execution of such a test program involving a broad range of test methods is quite expensive, nevertheless it has been fou nd to be of great value. (C) 1998 Elsevier Science B.V.