New sulphur control solution for viscose manufacturing

摘要

Danish chemical technology company Haldor Topsoe has created a new sulphur control solution designed to cut costs and support environmental compliance in viscose manufacturing. Preferential oxidation catalysis is a new catalytic solution which according to Topsoe offers viscose manufacturers a highly competitive alternative to costly traditional scrubbing sections for controlling sulphur compounds in off-gases. The new technology has been demonstrated to selectively treat different sulphur compounds in order to more efficiently remove hydrogen sulphide from emissions, while retaining the valuable carbon disulphide that is reused in the production. Topsoe added that unlike traditional scrubbing, preferential oxidation catalysis does not consume costly sodium hydroxide or produce wastewater which is troublesome to dispose of