NOVELTY - A system (100) for converting polyols to hydrocarbons comprises: (i) a reactor subsystem including a reactor (102), an aqueous reactor redox solution reservoir, and an aqueous polyol solution reservoir (110); (ii) a separation subsystem including a separation vessel (116) and a hydrocarbon fractionation component; and (iii) a regeneration subsystem including an electrochemical cell (134).    USE - For converting polyols, preferably biomass derived polyols, to hydrocarbons comprising alkanes and alkenes, preferably pentene and hexene, and mixtures of 10-12C dimers and 15-18C trimmers (claimed), the produced hydrocarbons are useful as solvents, fuels, and lubricating oils.    ADVANTAGE - The process provides efficient regenerable system for electrochemical conversion of polyols from biomass to more useful hydrocarbon products such as combustible fuels.    DETAILED DESCRIPTION - A system (100) for converting polyols to hydrocarbons comprises: (i) a reactor subsystem including a reactor (102), an aqueous reactor redox solution reservoir, and an aqueous polyol solution reservoir (110), where an outlet of the reactor redox reservoir is connected to a reactor redox solution inlet via a redox supply conduit and where an outlet (112) of the polyol reservoir is connected to a polyol solution inlet (104) via a polyol supply conduit (114); (ii) a separation subsystem including a separation vessel (116) and a hydrocarbon fractionation component, where the crude product outlet of the reactor is connected to a crude product inlet (118) of the separator vessel via a crude product conduit and where a hydrocarbon outlet of the separation vessel is connected to a hydrocarbon inlet of the fractionation component via a hydrocarbon conduit; and (iii) a regeneration subsystem including an electrochemical cell (134), where a spent redox solution outlet of the separation vessel is connected to a spent redox solution inlet of the cell via a spent redox solution conduit and the regenerated redox solution outlet of the cell is connected to a regenerated redox solution inlet of the reactor redox reservoir. The reactor is adapted to convert a portion of polyols in the polyol solution into their corresponding hydrocarbons or iodohydrocarbons.    DESCRIPTION OF DRAWING(S) - The figure shows a batch, semi-continuous and continuous polyol reduction system (100).    Reactor (102)    Polyol feed inlet (104)    Polyol solution reservoir (110)    Outlet of polyol reservoir (112)    Polyol supply conduit (114)    Separation vessel (116)    Crude product inlet (118)    Electrochemical cell (134)