Oil purification method and apparatus with porous membrane

摘要

Provided is a method of purifying oil by which nano particles are effectively removed from the oil. According to the oil purifying method, oil is effectively purified at a high temperature using a carbon nanostructure-metal or -metal oxide composite nano porous membrane composed of a carbon nanostructure-metal composite.

主权项

1. An apparatus for purifying oil comprising:
an oil inflow pipe into which the oil is introduced; an oil purification unit that purifies the oil introduced from the oil inflow pipe and has a porous membrane containing carbon nanostructure-metal or -metal oxide composites of a network structure; an oil outflow pipe through which the oil purified by the oil purification unit is discharged; an oil heating unit that is installed on any one of the oil inflow pipe and the oil purification unit and heats the oil, and an oil cooling unit that is installed on the oil outflow pipe and cools the discharged oil, wherein the porous membrane comprising: a membrane support having micro or nano-sized pores; and the carbon nanostructure-metal or -metal oxide composites coated on one surface or both surfaces of the membrane support, wherein the metal of the carbon nanostructure-metal or -metal oxide composites is connected to the surface of the membrane support to form a network structure of carbon nano structure-metal or -metal oxide composites nanoporous film by melting or sintering of the metal, wherein the porous membrane has a pore size between 10 nm and 500 nm, and wherein a basis weight of the carbon nanostructure-metal or -metal oxide composites ranges from 0.05 mg/cm2 to 10 mg/cm2.