TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: In the biodiesel production system, the intake assembly comprises: a first inlet (122) to receive the first reactant; a second inlet to receive the second reactant; a passive flow dispenser coupled to receive the first reactant from the first inlet, where the passive flow dispenser is operable to control a flow rate of the first reactant; and an adder having two adder inlets and an adder outlet, where the adder outlet is coupled to the microchannels, and the two adder inlets are respectively coupled to the passive flow dispenser and the second inlet, and the adder is operable to dispense the reactants to form the laminar slug flow pattern. The microreactor further comprises: an input manifold assembly coupled to receive the reactants and deliver the reactants to the intake assembly corresponding to each one of the microreactor plate; a module comprising a stacked arrangement of 'n' number of microreactor plates coupled in parallel; and an output manifold assembly to receive the biodiesel produced by the module, where the flow rate of the biodiesel produced by the module is 'n' times a flow rate of the biodiesel produced by the microreactor plate. The biodiesel production system further comprises: a first separator to further separate the biodiesel and the glycerol received from the first microreactor; a second microreactor coupled to receive unused portion of the reactants from the first microreactor, where the unused portion of the reactants are mixed to produce additional biodiesel and glycerol; and a second separator to further separate the additional biodiesel and glycerol received from the second microreactor.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: In the method: the mixing occurs in a turbulence free flow environment; dispersing is performed in accordance to a configurable proportion of the reactants, or in a microchannel having configurable dimensions, where a dimension of the microchannel is configured to 300-700 micrometers, and the dispersing of the first and second reactants occurs in a sequence to form a slug formed by the second reactant, where the slug is disposed between two slugs formed by the first reactant; and mixing and separating occurs under a pressure of less than 5 psi at less than 70 degrees C. In the method, a residence time for collecting the biodiesel is configurable as a function of microchannel geometry and the reaction, and the residence time is configured to 30 seconds to 20 minutes. Preferred Components: The second reactant includes alcohol (preferably methanol) and a catalyst including acid or a base chemical. The first reactant is biolipid, preferably mono alkyl esters. EXAMPLE - No suitable example given.