You are currently viewing Energy Balance Flow Sheet of Crude Benzol Hydro Refining Process

Energy Balance Flow Sheet of Crude Benzol Hydro Refining Process

Important equipment used in Hydro refining of crude Benzol:

  • Stage evaporator
  • Pre-reactor 
  • Main reactor 
  • Stripping column 

The energy balance of the above equipment:

Stage evaporator:
The input to the stage evaporator: Recycle gas, Crude benzol.
Output:   Crude benzol vapors, Residue.

The inlet temperature of Crude Benzol                                                           = 1600c

The outlet temperature of Crude Benzol vapor                                              = 1800c

Inlet temp recycle gas                                                                               = 1600c

The outlet temperature of RC gas                                                                   = 1800c

Input mass flow rate of Crude Benzol                                                     = 60tons / day

Output mass flow rate of Crude Benzol vapor and rc gas                       = 58tons/day

Input mass flow rate of RC gas                                                                = 2 tons / day

Out mass flow rate of residue                                                                   = 4tons / day

HYDROGEN  IN :

H = Q = mCpdt

             = 2X265.649X (433-298) X1000

             =8628.5 KJ/day     

HYDROGEN GAS OUT  :

H = Q = mCpdt

             = 2X267.1613X(453-298)  

              =9961.5 KJ/day

BENZENE  IN :

H = Q = mCpdt

       = 0.75x60x1000x820.58(433-298)

       =598989.656 KJ/day

BENZENE  OUT :

H = Q = mCpdt

            = 0.75X56X1000X840.206(453-298)

             =657324.9 KJ/day

TOLUENE IN:

H = Q = mCpdt

            =0.15X60X1000X1044.166(433.-298)

             =154763.05 KJ/day

TOLUENE OUT :

 H = Q = mCpdt

             =0.15X56X1000X1068.389X(453-298)

             =20109.198 KJ/day

XS FRACTION IN :

H = Q = mCpdt   

             =  0.05X60X1000X1293.17X(433-298)

              =123646.86 KJ/day

XS FRACTION OUT:

H = Q = mCpdt

           =0.05X56X1000X1320.15(453-298)

           =68907.86 KJ/day

BALANCE ON IMPURITIES :

OXYGEN IN :

H = Q = mCpdt 

            =0.01X1000X60X253.27(433-298)

             =2467.11 KJ/day

 OXYGEN OUT :

H = Q = mCpdt

            =0.01X1000X56X254.419(453-298)

            =2656.189 KJ/day

NITROGEN IN : 

H = Q = MCP dt

            =0.02X60X1000X247X(433-298)

            =4829.24 KJ/day

NITROGEN OUT :

 H = Q= mCpdt

            =0.02X56X1000X248.475(453-298)

             =5188.268KJ/day

SULFUR IN :

 H = Q = mCpdt

             = 0.03X60X1000X289.4(433-298)

              =8458.777KJ/day

SULFUR OUT :

H = Q = mCpdt

            =0.03X56X1000X298.954X(453-298)

            =9463.45KJ/day

ENERGY IN = 901783.7KJ/day

ENERGY OUT = 892436.2kj/day

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