Method for producing hydrocarbons

Abstract

A method for producing a hydrocarbon according to the present disclosure includes a step of subjecting a feedstock to fluid catalytic cracking by using a fluid catalytic cracking unit including a reactor and a regenerator, in which the feedstock includes FT synthetic oil, and a feed temperature x (unit: ° C.) of the feedstock, a feed rate y1 (unit: ton/h) of the feedstock, a feed rate y2 (unit: ton/h) of a fuel oil to be fed into the regenerator, and a circulation rate z1 (unit: ton/h) of a catalyst circulating the reactor and the regenerator satisfy a specific inequality expression.

1 . A method for producing a hydrocarbon, the method comprising:
 subjecting a feedstock to fluid catalytic cracking by using a fluid catalytic cracking unit including a reactor and a regenerator,   wherein the feedstock to be fed into the reactor includes FT synthetic oil,   a feed temperature x (unit: ° C.) of the feedstock, a feed rate y1 (unit: ton/h) of the feedstock, a feed rate y2 (unit: ton/h) of a fuel oil to be fed into the regenerator, and a circulation rate z1 (unit: ton/h) of a catalyst circulating through the reactor and the regenerator satisfy the following Inequality Expression (1)   
       
         
           
             
               
                 
                   
                     
                       
                         
                           1 
                           575 
                         
                         ⁢ 
                         x 
                       
                       + 
                       
                         
                           3 
                           
                             2 
                             ⁢ 
                             3 
                           
                         
                         ⁢ 
                         y 
                       
                       + 
                       
                         
                           9 
                           
                             1 
                             ⁢ 
                             8 
                             ⁢ 
                             4 
                           
                         
                         ⁢ 
                         z 
                       
                       - 
                       1 
                     
                     ≧ 
                     0 
                   
                 
                 
                   
                     ( 
                     1 
                     ) 
                   
                 
               
             
           
         
         
           
             
               y 
               = 
               
                 
                   ( 
                   
                     y 
                     ⁢ 
                     2 
                     / 
                     y 
                     ⁢ 
                     1 
                   
                   ) 
                 
                 × 
                 100 
               
             
           
         
         
           
             
               z 
               = 
               
                 
                   ( 
                   
                     z 
                     ⁢ 
                     1 
                     / 
                     y 
                     ⁢ 
                     1 
                   
                   ) 
                 
                 . 
               
             
           
         
       
     
     
         2 . The method for producing a hydrocarbon according to  claim 1 , wherein the feedstock further includes a hydrocarbon oil having a higher % C A  than the FT synthetic oil. 
     
     
         3 . The method for producing a hydrocarbon according to  claim 2 , wherein the hydrocarbon oil includes a desulfurized atmospheric residue. 
     
     
         4 . The method for producing a hydrocarbon according to  claim 1 , wherein the feedstock is obtained by mixing the FT synthetic oil and a hydrocarbon oil having a higher % C A  than the FT synthetic oil before the feedstock is fed into the reactor of the fluid catalytic cracking unit. 
     
     
         5 . The method for producing a hydrocarbon according to  claim 4 , wherein the hydrocarbon oil includes clarified oil.