A computer-readable medium having computer-executable instructions which, when executed by a controller that is associated with a polymer treatment device (100, 200, 300, 400, 500, 600, 700, 800) result in the polymer treatment device (100, 200, 300, 400, 500, 600, 700, 800) being operable to execute a method (2100) of providing a treatment to a polymer bed (4) that is arranged on a polymer supporter (110, 210, 310, 410, 510, 610, 710, 810) therein, the polymer bed (4) having granules (2) of a polymer that are in a solid-state, the computer-executable instructions for causing:
- heating (2110) of the polymer bed (4) with radiant heat energy from a radiant heater (120, 220, 320, 420, 520, 620, 720, 820, 1020);
- and
- passing (2120) of a first treatment fluid (102-1) through the polymer bed (4) in between the granules (2) thereof.