Citgo Petroleum Corp. said it plans to resume partial crude processing operations at its 167,000-b/d Lemont, Ill., refinery following a fire at the crude distillation unit early last week (OGJ Online, ...

IT is a well-known fact that if we distil off a part of a quantity of pure water, no physical or chemical property is changed by the process; for example, the vapour pressure of the remaining liquid, ...