Nixon & Vanderhye
Condensating-fractionating tower system
 An improved condensating-fractionating tower system used in the separation of gaseous mixture, comprising a dephlegmator, a column section and a tower bottom, the said dephlegmator being provided in the upper portion of the tower, is characterized in that the dephlegmator is a plate-fin dephlegmator. 
Beijing Petrochemical Engineering Company China Petro-Chemical Corporation
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Guanghua Songhan Li
Li Wang Li