NOVELTY - Producing biodiesel comprises: dispersing a first reactant and a second reactant to form a laminar slug flow pattern, where the first and second reactants are immiscible; mixing the reactants to trigger a reaction producing biodiesel and glycerol, where the mixing is convection-enhanced by shear stress induced circulation occurring within each slug of the reactants; and separating the glycerol from the biodiesel, where the separation occurs simultaneously with the mixing.    USE - The method is useful for the production of biodiesel.    ADVANTAGE - The method is an improved catalytic transesterification process, which utilizes: turbulence free segmented flow pattern having high volume biodiesel production, low capital and operating costs, and low residence times; and compact and modular process equipment that enables operation in remote areas, farms and developing countries, by requiring low temperature and pressure, and low energy.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) a biodiesel production system (100) comprising: a first source operable to provide the first reactant; a second source operable to provide the second reactant; and a first microreactor comprising: an intake assembly (110) to receive the first reactant (120) and the second reactant (130); and a first microreactor plate to facilitate the reaction between the reactants, where the first microreactor plate comprises microchannels coupled to an intake assembly to receive the first reactant and the second reactant is dispensed to form the laminar slug flow pattern within the microchannels, the first reactant is mixed with the second reactant to produce the biodiesel and glycerol and separated; and the outlet to receive the biodiesel from the microchannels;    (2) a microreactor comprising: the intake assembly; the microreactor plate; and the outlet; and    (3) manufacturing the microreactor, comprising: fabricating the microreactor plate of the microreactor by hot embossing with a press, where the microreactor plate is fabricated from an inert polymer material; sealing the microreactor plate by another layer of the inert polymer material by hot lamination with the press; and stacking 'n' number of microreactor plates to manufacture the microreactor, where the microreactor is used for producing biodiesel 'n' times a volume flow rate of the microreactor plate.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic representation of the biodiesel production system.    Biodiesel production system (100)    Intake assembly (110)    First reactant (120)    First inlet (122)    Second reactant (130)