NOVELTY - Apparatus comprises: a source of ingredients containing sources of feed oil, alcohol and a catalyst; a venturi mixer (36) in fluid communication with the sources of the feed oil, alcohol and the catalyst for mixing the feed oil, alcohol and the catalyst into a mixture of ingredients; a packed column (40) in fluid communication with the venturi mixer; and a high pressure kinetic reactor (44) in fluid communication with the packed column. The kinetic reactor includes nozzles for directing impinging split flows of the partially reacted mixture.    USE - The apparatus is useful for the production of biodiesel fuel (claimed).    ADVANTAGE - The apparatus provides rapid and low energy cost production of biodiesel fuel and minimizes undesired byproducts.    DETAILED DESCRIPTION - Apparatus comprises: a source of ingredients containing sources of feed oil, alcohol and a catalyst; a venturi mixer (36) in fluid communication with the sources of the feed oil, alcohol and the catalyst for mixing the feed oil, alcohol and the catalyst into a mixture of ingredients; a packed column (40) in fluid communication with the venturi mixer for receiving the mixture for providing partially reacted flow from the mixture of ingredients; and a high pressure kinetic reactor (44) in fluid communication with the packed column for receiving the partially reacted mixture, for completing the reaction of the partially reacted flow to provide the biodiesel fuel. The kinetic reactor includes nozzles for directing impinging split flows of the partially reacted mixture. INDEPENDENT CLAIMS are also included for:    (1) an apparatus comprising: the source of ingredients containing sources of feed oil, methanol and a catalyst comprising source of potassium methoxide, sodium methoxide or sodium methylate; a flow control assembly (24a) or a metering pump assembly controlling flows of the ingredients to provide flows of 81-85 vol.% of feed oil, 14-18 vol.% alcohol and 0.4-1.2 vol.% of catalyst; the venturi mixer in fluid communication with the controlled flows of the feed oil, alcohol and the catalyst for mixing the feed oil, alcohol and the catalyst into a mixture of ingredients; the packed column in fluid communication with the venturi mixer for receiving the mixture for providing partially reacted flow from the mixture of ingredients; and a high pressure kinetic reactor including opposing adjustable need valve accelerators at opposite ends of the high pressure kinetic reactor, where the flow accelerators create high velocity impinging flows of the partially reacted ingredients to complete the reaction, and the high pressure kinetic reactor is operated at 900-1000 psi pressure in fluid communication with the packed column for receiving the partially reacted mixture, for completing the reaction of the partially reacted flow to provide the biodiesel fuel and the kinetic reactor includes nozzles for directing impinging split flows of the partially reacted mixture; and    (2) rapid production of biodiesel fuel, comprising: providing feed oil to a mixer; providing alcohol to the mixer; providing catalyst to the mixer; mixing the feed oil, alcohol and the catalyst in the mixer to produce a mixture; providing the mixture to a packed column; pumping the mixture through the packed column to react the mixture to produce a partially reacted mixture; providing the partially reacted mixture to a high pressure kinetic reactor; and pumping through the high pressure kinetic reactor to complete the reaction to produce biodiesel fuel.    DESCRIPTION OF DRAWING(S) - The figure shows a biodiesel fuel processing system.    Catalyst tank (12)    Flow control assembly (24a)    Mixer (36)    Packed column (40)    High pressure kinetic reactor assembly (44)