Capped carbon filter assembly

A method for making a carbon filter assembly, the method comprising the steps of:

• mixing carbon and a binder material to make a carbon/binder mixture;
• extruding said carbon/binder mixture to form a filter core, said filter core having a cylindrical shape, a top end, a bottom end, a carbon-based internal wall defining a central cavity, and an external surface;
• applying a layer of melt-blown filter material to said exterior surface of said filter core;
• affixing a first end cap to said top end of said filter core;
• and
• affixing a second end cap to said bottom end of said filter core.

A method for purifying natural gas, the method comprising the steps of:

• exposing natural gas to a solvent selected from the group consisting of amine solvents and glycol solvents;
• and
• filtering said solvent using a carbon filter, the carbon filter comprising:
• a carbon-based core having a cylindrical shape, a top end, a bottom end, a carbon-based external wall, and a carbon-based internal wall, said carbon-based internal wall defining a central cavity, said central cavity extending from said top end to said bottom end of said carbon-based core;
• a layer of a melt-blown polymer-based filter material applied to said carbon-based external wall, said layer of a melt-blown polymer-based filter material surrounding said carbon-based core;
• and
• at least one end cap fixedly attached to said carbon-based core.