Home › Forums › Coking › News: DCU, Upgrader › 1.Coker (registered users only) › Citgo Corpus Refinery fires send one to SanAntonio Burn Unit › RE: Citgo Corpus Refinery fires send one to SanAntonio Burn Unit July 20, 2009 at 1:13 pm #6060 Anonymous HF or Sulfuric Alky Unit? Do you know.