1. A process for cooling and drying wet chlorine gas by contacting said wet gas with sulfuric acid in at least two drying towers in series which comprises the steps of: (a) feeding wet chlorine gas to a first drying tower, (b) contacting in said first drying tower said wet chlorine gas with sulfuric acid to remove water and produce a partially dry chlorine gas, (c) feeding said partially dry chlorine gas to the final drying tower, (d) contacting in said final drying tower said partially dry chlorine gas with concentrated sulfuric acid to produce a dry chlorine gas containing less than about 10 parts per million by weight of water, having a temperature of from about 12.degree. to about 16.degree. C., and (e) feeding said cool, dry chlorine gas to a compressor without intermediate cooling between steps (d) and (e).