Section 837 in Rules under the United Provinces Excise Act, 1910
837.
Within a few years, two main types of dehydrating plants were designed so efficient that alcohol containing less than 1 per cent, water was obtainable therefrom at only slightly higher cost.Distilleries installed with dehydrating plants enabling them to produce alcohol above 99 per cent, in strength are termed power alcohol distilleries. The types of dehydrating plants with which they are installed can be divided and sub-divided as under :(1)Dehydrating plants using dehydrating agents such as-(a)Solid drying agents-Calcium oxide and calcium sulphate.(b)Liquid hydrating agents-Such as acetates of sodium and potassium in the ratio of 30 : 70.(2)Dehydrating plants using azeotropic methods."Entraining liquid" such as benzene is used therein for separating water from high strength alcohol.Previously, solid or liquid drying agents used for the production of absolute alcohol.
