F22B1/00—Methods of steam generation characterised by form of heating method
F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
F22B1/08—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being steam
Oil-separator vessel for combined light and heavy oils with a (two-sections) two-chambers maintain a different level of liquid in the chambers that achieves a big difference in the temperatures of cooling water and a light oil separated on top of chamber