Pictorial Presentation.pptx

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HEATER CELL CONVECTION

To isolate or to control the isolation valves of  Pass C/Vs within minimum time is not possible as those are on the convection platform of the heater

Typical Heater Burner Assembly & Air Resistor

Combustion Air

Difficulty in heater operation as the burner assembly and air resistor are unapproachable

Heater stack height is lower than coke drum cutting platform. Chances of having hazardous ambience at the cutting platform if wind direction is towards it. •

•

Bypass To Coke Drums

G DCV 

U J D C U Coke cutting pump Bypass

P D

DCV 

R

To Coke Drums

P D

DCV 

C U

•

One DCV for each Coke cutting pumps.

Vertical Water Pump Motors get submerged during water draining and hydraulic decoking of drums. C O K E D R U M

T<176

Blow down Settling Drum

B D L

Wax tailing Steam From V-1,2,3,4

To Coke Drum As Quench

To Main Fractionator

O

O W W N

T<200

T

B D

O

L

W E R

Blow down Settling Drum

Wax tailing Steam From V-1,2,3,4

O

O W W N

T O W E R

To Coke Drum As Quench

To Main Fractionator 27