Apparatus and method of monitoring temperature in a multi-cell electrolyzer
AssigneeAllied Chemical Corporation
InventorEric H. Larson
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Abstract
An apparatus and method of monitoring temperature in a multicell electrolyzer used to produce a gaseous product from a liquid phase electrolyte by placing a single temperature sensing means in the common product collection means is disclosed.
Claims16
In a process for making halogen gas and alkali metal hydroxide by electrolysis of an aqueous alkali metal halide brine in a bank of two or more electrolytic cells, each cell containing an anode and a cathode and being separated into an anode compartment and a cathode compartment, wherein (a) the halide brine is introduced into an anode compartment;
- (b) halogen gas produced at an anode is withdrawn from the anode compartments by a common halogen gas collection means;
- (c) depleted halide brine is removed from the anode compartments through common depleted brine collection means;
- (d) water or dilute alkali metal hydroxide is fed to a cathode compartment;
- (e) alkali metal hydroxide is withdrawn through a common alkali metal hydroxide collection means from the cathode compartments;
- and (f) hydrogen gas produced at a cathode is withdrawn through a common hydrogen gas collection means, the improvement which comprises monitoring temperature in the bank by monitoring a output signal of a single temperature sensing means placed in the common gas collection means for hydrogen or halogen gas.
In an apparatus for producing a gaseous product stream by electrochemical conversion of a liquid phase electrolyte in a bank of two or more electrolytic cells, each cell comprising a cell body having an anode and a cathode;
- an inlet means;
- outlet means for a gaseous product and for at least depleted liquid phase electrolyte;
- a common collection means for gaseous product stream;
- and a common collection means for at least depleted liquid phase electrolyte;
- the improvement which comprises (a) a single first temperature sensing means positioned in the common collection means for gaseous product stream;
- and (b) means to monitor an output signal from said single first sensing means.
Dependencies are inferred from the claim text.