SO2 Separation Research Articles

Application and development of synthetic polymer membranes. VII. Separation of SO2 through synthetic polymer membranes with thianthrene derivative as a fixed carrier.

Novel synthetic polymeric membranes from cellulose acetate and 2, 7-thianthrene dicarboxylic acid-5, 5', 10, 10'-tetraoxide showed permselectivity toward SO2 against O2 and N2. It was made clear that an incorporated carrier, 2, 7-thianthrene dicarboxylic acid-5, 5', 10, 10'-tetraoxide, played an important roll for selective permeation of SO2 through the membrane.

A gas chromatographic analysis for SO2 oxidation

An improved method of determining yields of sulphur trioxide in sulphur dioxide oxidations is reported. The method relies on the absorption of SO3 from the reaction gases. An all-teflon system incorporating a gas density balance is used. Separation of SO2 and O2 is effected on a Porapak PS column at ambient temperature.