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US 4,227,890 AGranted
Process for cooling and drying chlorine gas
AssigneeOlin Corporation
InventorsJoseph L. Wood, Matthew F. Lipworth
Life of this patent
Estimating the term…
Abstract
A process for cooling and drying wet chlorine gas with concentrated sulfuric acid in which in the final drying stage the acid is maintained at a temperature which cools the chlorine gas to its compression temperature. The process produces a cool, very dry chlorine gas, is energy efficient and permits optimum design of the chlorine compressor to reduce capital expense requirements.
Claims5
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).
2 more elements
Dependencies are inferred from the claim text.