FLOATING LIQUEFIED NATURAL GAS FRACTIONAL DISTILLATION PROCESS USING DIABATIC DIVIDED WALL COLUMN

摘要

The present invention relates to a floating liquefied natural gas fractional distillation apparatus using a diabatic dividing wall column built to separate three components which includes a methane-ethane mixture, a propane-butane mixture, and pentane from a mixture of methane, ethane, propane, butane, and pentane. The present invention ensures to reduce energy consumption when manipulating distillation, thereby acquiring a high energy efficiency, and is adequate for a process of the floating liquefied natural gas by decreasing in number of columns and reducing a scale thereof.