NOVELTY - Producing an alkyl ester in supercritical process comprises: feeding a feedstock-alcohol mixture into a reactor (100) for processing mixture into alkyl ester, where the reactor is equipped with a means for electrostatically precipitating glycerin from the mixture and a drain (160) for draining precipitated glycerin from the reactor; bringing alcohol in the mixture to a supercritical state and to convert the mixture into glycerin molecules and alkyl esters; precipitating the glycerin from the mixture; draining glycerin from reactor; and discharging a fuel comprising alkyl esters from reactor.    USE - The method is useful for producing an alkyl ester (claimed) i.e. biodiesel.    ADVANTAGE - The method: produces alkyl ester in less time compared to conventional methods; is less expensive to implement; prevents free fatty acids from binding with glycerin during processing; and reduces the ratio of alcohol to feedstock, which is required to obtain full conversion of glycerides to alkyl esters.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for an apparatus for producing the alkyl ester in a supercritical process, comprising: a reactor having a housing that encloses a chamber, an inlet port, a discharge port (170) and a drain, where the housing is electrically grounded and the drain is electrically operated between open and closed positions; a feed line for introducing the mixture into the reactor; a discharge line for drawing a fuel from the reactor; an anode (120) positioned within the chamber, for maintaining an electric field inside the chamber; and an electrostatic probe (130) that is provided above the drain, which opens the drain when a level of glycerin in the chamber is high enough to make contact with a lower end of the electrostatic probe.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic illustration of the reactor with electrostatic separator for supercritical production of alkyl esters with continuous electrostatic removal of glycerin.    Reactor (100)    Anode (120)    Electrostatic probe (130)    Drain (160)    Discharge port (170)