There is an amazing story to share of pushing the yield envelope from one of the November 11 sessions at the RefComm® Bahrain 2015 Conference and Workshop.
Many cokers in the world have high CCR and high heater fouling. As such, they limit their heater outlet temperature to a level where the fouling is manageable. The decision reduces yield below the optimum level.
What if you knew it was possible to have a 29% CCR feed and a 942 °F heater outlet AND less than 1°F/day heater aging temperature? Many think this is impossible but today we heard that it is possible and being done.
With a properly designed Foster Wheeler unit (here in the Middle East) and good process optimization, it has been possible to increase liquid yield to 5-7% over design. Congrats to the design and operations team…quite a story to be heard!