This paper is concerned with the production of anhydrous ethanol from an azeotropic water/alcohol mixture. The subject is discussed under headings: drying small amounts of hydrous ethanol by calcium oxide or aluminum oxide; molecular sieves applications; dehydration using hydrocarbon solvents (extraction); dehydration process by using distillation with benzene. Other subjects discussed are: fuel oil; thermodynamics; balanced system; design and control of dehydration equipment; and alcohol engines for use by farmers.