REMOVAL OF CARBONDISULPHIDE AND HYDROGENS ULPHIDE FROM WASTE-GAS STREAMS USING MEMBRANES

In the rayon fiber industry large waste gas streams are produced conta ining carbon disulphide (CS2) and hydrogen sulphid (H2S). Due to the l ow gas concentration the removal and reuse of CS2 and H2S by condensat ion is economically not feasible. This work deals with fundamental per meation experiments for the removal and concentration of CS2 and H2S f rom waste gas streams. Experiments at different temperatures and perme ate pressures with the untreated waste gas stream of a rayon fiber pro duction unit using a PDMS-capillary module were performed. The experim ents show that already with one membrane unit both components could be enriched significantly. At low loads at the membrane unit the faster permeating CS2 could be removed almost completely.