Technology Unit

• C₃/C₄ Separator Unit (Debutanizer, part of the PE Plant):
  • Bottom product (C5+ Pygas) from the Polyethylene Plant Debutanizer is fed to a first Gasoline Hydrogenation Unit.
• First Gasoline Hydrogenation Unit:
  • Product from the first Gasoline Hydrogenation Unit is sent to the C₆/C₇ Separation Unit.
• C₆/C₇ Separator Unit:
  • Top product from the C₆/C₇ Separation Unit (C₅ + C₆) is fed to a second Gasoline Hydrogenation Unit.
• Second Gasoline Hydrogenation Unit:
  • Product from the second Gasoline Hydrogenation Unit II is fed to the C₅/C₆ Separator Unit (Depentanizer).

Source: Y.A. Sastry & Uday Krishna Dy, DUAL FEED CRACKER UNIT & ASSOCIATED UNIT, ONGC Petro additions Limited (OPaL), Uploaded on 28^th Jan 2018 on SCRIBD.