Important equipment used in Hydro refining of crude Benzol:
- Stage evaporator
- Pre-reactorÂ
- Main reactorÂ
- Stripping columnÂ
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
