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Condenser-evaporator for large air separation plant

Image Number 4 for United States Patent #4606745.

A condenser-evaporator for use in a large air separation plant in which the condenser-evaporator is provided between an upper column and a lower column, the condenser-evaporator condensing nitrogen gas, ascending from the lower column through first conduit, by heat exchange with liquid oxygen flowing down from an upper column through second conduit. The condenser-evaporator includes a plurality of condenser blocks wherein the oxygen chambers of each condenser block are divided in a vertically multistage manner by partition members and wherein the nitrogen chambers of each condenser block form common passages through all the stages.

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