MULTIPLE PASS, PARALLEL FLOW DOWNCOMER TRAY FOR A MASS TRANSFER COLUMN

• Main Authors: RICOTTA JOHN P, CHEN QUANG X, BROWN STEVEN C
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2018
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

A multiple pass, parallel flow downcomer tray for a mass transfer column and method for liquid-vapor contacting in a mass transfer column is provided. The multiple pass, parallel flow downcomer tray has at least four mass transfer decks configured to provide contact between an ascending vapor passing upward through apertures on the tray surface and a traversing liquid on the tray surface. The trayfurther includes a central downcomers disposed near a central axis of the tray and two or more peripheral downcomers disposed near the edge of the tray and spaced apart from the central axis, whereinat least two of the four mass transfer decks are configured to discharge the traversing liquid into the peripheral downcomers and two of the four mass transfer decks are configured to discharge the traversing liquid into the central downcomer. 本发明提供了用于传质塔的多程、平行流下导管塔盘以及用于传质塔中的液体-蒸气接触的方法。所述多程、平行流下导管塔盘具有至少四个传质塔板，所述至少四个传质塔板被构造成提供向上穿过所述塔盘表面上的孔口的上行蒸气与所述塔盘表面上的横越液体之间的接触。所述塔盘还包括设置在所述塔盘的中心轴线附近的中心下导管以及设置在所述塔盘的边缘附近且与所述中心轴线间隔开的两个或更多个周