Starting-up method of fractionator

摘要

A method of starting up a rectifier for fractionating Fisher-Tropsch synthesis hydrocarbons produced by FT synthesis.  The method comprises: a step in which light FT synthesis hydrocarbons present as a gas in an FT reactor where the Fisher-Tropsch synthesis is conducted are taken out of the FT reactor; a step in which the light FT synthesis hydrocarbons taken out of the FT reactor are cooled in order to liquefy the hydrocarbons; a step in which the light FT synthesis hydrocarbons having liquefied are supplied to the rectifier; and a step in which the light FT synthesis hydrocarbons are heated and circulated to the rectifier.