FCC-CFE CAT FINE EXTRACTION: METHOD AND SYSTEM FOR EXTRACTING CATALYST FINES FROM SLURRY OIL CAT FINE BOTTOMS (SOCFBs) INTO AN AQUEOUS LAYER

Abstract

A method for separating hydrocarbons from Slurry Oil Cat' Fine Bottoms (SOCFBs) comprising the steps of removing SOCFBs from a slurry oil storage tank and combining the SOCFBs with diluent and water in a Feed Preparation Vessel (FPV) and transferring the SOCFB and water emulsion to a Feed Processing Unit (FPU) in which the SCDM settles into a hydrocarbon layer, an emulsion layer and a water layer containing catalyst particles.

1 . A method for recovering hydrocarbons and extracting catalyst particles from Slurry Oil Cat' Fine Bottoms (SOCFBs) into an aqueous layer comprising the steps of:
 removing SOCFBs from a slurry oil storage tank;   combining the SOCFBs with a volume of diluent to create a Slurry Oil/Cat' Fines/Diluent Mixture (SCDM);   combining the SCDM with a volume of wash water; and   settling the diluted SOCFBs into a hydrocarbon layer, an emulsion layer and a water layer containing catalyst particles.   
   
   
       2 . The method of  claim 1  further comprising the steps of:
 removing the hydrocarbon layer; and   removing the water layer and catalyst particles.   
   
   
       2 . The method of  claim 1  further comprising the step of heating the SOCFBs and diluent to a predetermined temperature. 
   
   
       3 . The method of  claim 2  wherein the predetermined temperature is from between about 160 and 210 degrees Fahrenheit. 
   
   
       4 . The method of  claim 2  further comprising the step of combining the heated and diluted SOCFBs with a volume of water. 
   
   
       5 . The method of  claim 1  wherein the step of combining the SOCFBs with a volume of diluent comprises the step of adding and mixing the SOCFBs with treated diluent within a Feed Preparation Vessel (FPV) to create a Slurry Oil Cat Fines Diluent Mixture (SCDM). 
   
   
       6 . The method of  claim 5  wherein the step of settling the diluted SOCFBs into a hydrocarbon layer, an emulsion layer and a water layer containing catalyst particles comprises the steps of heating the SCDM to a desired temperature and combining SCDM with water. 
   
   
       7 . The method of  claim 6  wherein the mixed SCDM and water is transferred to a Feed Processing Unit (FPU) where settling occurs. 
   
   
       8 . A system for separating hydrocarbons from catalyst fines in a slurry oil/catalyst fines/diluent mixture (SCDM) comprising:
 a slurry oil storage tank;   a Feed Preparation Vessel (FPV) for receiving Slurry Oil Cat' Fine Bottoms (SOCFBs) from the slurry oil storage tank, the FPV further comprising a diluent feed inlet for introducing a diluent into the FPV and a mixer for mixing the diluent and SOCFBs into a SCDM; and   a Feed Processing Unit (FPU) for receiving the SCDM from the FPV and for settling the SCDM into a hydrocarbon layer, and emulsion layer and a water layer containing catalyst particles from the SCDM;   
   
   
       9 . The system of  claim 8  wherein the FPV is attached to a circulating line having a circulating pump attached to a static mixer for mixing the diluent and SOCFBs. 
   
   
       10 . The system of  claim 8  wherein the FPU further comprises mixers. 
   
   
       11 . The system of  claim 8  wherein the FPU further comprises a heater for heating the SCDM. 
   
   
       12 . The system of  claim 8  wherein the FPV further comprises a heater for heating the SCDM.