SYNTHETIC NAPHTHA MANUFACTURING METHOD

摘要

A process for the production of naphtha which comprises hydrotreating a naphtha fraction separated from synthetic oil obtained by Fischer-Tropsch process, namely, FT synthetic oil, wherein the quantity of olefins in a hydrotreating unit is reduced by recycling a hydrotreated naphtha component in a controlled amount to the unit, whereby heat generation in the unit is inhibited to attain stable operation of the unit; and a process for the production of naphtha wherein the quantity of olefins in a hydrorefining unit is reduced by controlling the temperature at which a naphtha fraction is cut from FT synthetic oil through fractional distillation to attain stable operation of the unit.