NOVELTY - The apparatus comprises a conduit reactor having fibers positioned longitudinally within an elongated housing in fluid communication with a tube inlet and a tube outlet of the housing, and a collection vessel positioned proximate to the tube outlet for receiving the biodiesel. The tube inlet is adapted for receiving an alcohol phase and a lipid phase for fluid communication to the fibers. The alcohol phase flows along the fibers, and the lipid phase flows between the fibers. The fibers are adapted for reception of a reactive species.    USE - The apparatus is useful for forming biodiesel.    ADVANTAGE - The apparatus is capable of economically, rapidly and safely forming the biodiesel with increased productivity, reactor volume efficiency and quality and improved environmental performance and without any pollution.    DETAILED DESCRIPTION - The apparatus comprises a conduit reactor having fibers positioned longitudinally within an elongated housing in fluid communication with a tube inlet and a tube outlet of the housing, and a collection vessel positioned proximate to the tube outlet for receiving the biodiesel. The tube inlet is adapted for receiving an alcohol phase and a lipid phase for fluid communication to the fibers. The alcohol phase flows along the fibers, and the lipid phase flows between the fibers. The fibers are adapted for reception of a reactive species. The lipid phase comes in contact with the alcohol phase and reactive species, and interacts to form biodiesel upon introduction into the reactor. The lipid and alcohol phases and reactive species are introduced into the housing to move co-currently and counter-currently through the reactor. The tube inlet comprises a separate intake for the alcohol phase and a separate intake for the lipid phase, and a filter. The reactive species is bounded to the fibers within the housing, and is introduced in the housing with the alcohol phase. The apparatus further includes a pump coupled to the tube inlet for introducing the alcohol phase to the housing. A heat exchange medium is adapted for circulation within the housing to add heat to the housing. The housing comprises a pressure vessel for interacting the lipid phase, the alcohol phase and reactive species under pressure. INDEPENDENT CLAIMS are included for:    (1) a method for forming biofuel; and    (2) a process for treating lipids such as vegetable oils or animal fats or waste cooking oils and/or fatty acids in a biodiesel formation system to extract an extractable species such as phospholipids or free fatty acids in an elongated conduit extractor.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a conduit reactor system.