NOVELTY - System comprises: a reactor (103) for hydrogenating acetic acid in the presence of a catalyst to form a crude ethanol product; a first column (107) for separating at least a portion of the crude ethanol product into a first distillate; a second column (108) for separating a portion of the first distillate into a second distillate comprising ethyl acetate and a second residue; a third column (109) for separating a portion of the second residue into a third distillate; and a dehydrator for dehydrating at least a portion of the third distillate to form the anhydrous ethanol composition.    USE - The system is useful for producing an anhydrous ethanol composition (claimed), which is useful: in fuels, solvents, chemical feedstocks, pharmaceutical products, cleansers, sanitizers, and hydrogenation transport; for motor vehicles, such as automobiles, boats and small piston engine aircrafts; in non-fuel applications; as a solvent for toiletry and cosmetic preparations, detergents, disinfectants, coatings, inks, and pharmaceuticals; and as processing solvent, e.g. for manufacturing medicinal products, food preparations, dyes, photochemicals and latex processing.    ADVANTAGE - The system provides ethanol composition in a simple and cost-effective manner.    DETAILED DESCRIPTION - System comprises: either a reactor (103) for hydrogenating acetic acid in the presence of a catalyst to form a crude ethanol product, a first column (107) for separating at least a portion of the crude ethanol product into a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid, a second column (108) for separating at least a portion of the first distillate into a second distillate comprising ethyl acetate and a second residue comprising ethanol and water, a third column (109) for separating at least a portion of the second residue into a third distillate comprising ethanol and water and a third residue comprising water, and a dehydrator for dehydrating at least a portion of the third distillate to form the anhydrous ethanol composition; or the reactor, a light ends column for separating at least a portion of the ethanol product into the first distillate, and a first residue comprising ethanol and water, a product column for separating at least a portion of the first residue into a second distillate comprising ethanol and residual water and a second residue comprising separated water, and the dehydrator.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic diagram of a system.    Reactor (103)    First column (107)    Second column (108)    Third column (109)    Fourth column. (122)