Ex parte RIEHM - Page 3




          Appeal No. 1998-0558                                                        
          Application No. 08/564,942                                                  


               containing benzene and toluene and having a lower                      
               average molecular weight relative to C  alkyl                          
                                                     8                                
               aromatic, and a second fraction enriched in C , alkyl                  
                                                            8                         
               aromatic content relative to the effluent;                             




               (e)  subjecting at least a portion of the first                        
               hydrocarbon-rich fraction to the contacting of step                    
               (c); and                                                               
               (f)  recovering at least one C , alkyl aromatic                        
                                             8                                        
               product from the second fraction.                                      
               32.  A process for isomerizing a C , alkyl aromatic                    
                                                 8                                    
               hydrocarbon-containing feedstock comprising the                        
               steps of:                                                              
                    (a) providing a catalyst including at least                       
                    one metal component;                                              
                    (b) activating the catalyst;                                      
                    (c) contacting the feedstock in at least                          
                    one isomerization zone with the catalyst                          
                    and being effective to promote C , alkyl                          
                                                    8                                 
                    benzene isomerization at isomerization                            
                    conditions in the presence of hydrogen at                         
                    isomerization conditions to isomerize at                          
                    least a portion of the C  alkyl aromatic                          
                                            8                                         
                    hydrocarbons and to produce an effluent;                          
                    (d) separating the effluent to form a                             
                    hydrogen-rich fraction, a first hydro-                            
                    carbon-rich fraction containing benzene and                       
                    toluene and having a lower average                                
                    molecular weight relative to C  alkyl                             
                                                  8                                   
                    aromatic, and a second fraction enriched in                       
                    C  alkyl aromatic content relative to the                         
                     8                                                                
                                          3                                           





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