There are many types of tray designs, but the most common ones are. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Trays are the most commonly selected type of distillation column. The cap is mounted so that there is a space between riser and cap to allow the passage of vapour. A bubble cap tray has riser or chimney fitted over each hole, and a cap that covers the riser.
On the tray the vapor and liquid are contacted and then above the tray they are separated. Which type of tray is mostly used in distillation column. In the following table, tray types are compared on the basis of cost, pressure drop, masstransfer efficiency, vapor capacity, and flexibility in terms of turn down ratio ratio of maximum to minimum vapor flow capacity. Distillationabsorption column design che 4253 design i packed tower tray tower. It is about trays in distillation column and types of trays use in distillation column for different applications slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Types of tray types of tray trays are the most commonly. Types of distillation column internals sciencedirect.
Trayed columns utilized a pressure and temperature differential to separate the products. The term structured packing refers to a range of specially designed materials for use in absorption and distillation columns. For most tray columns, the weir holds a liquid level of each tray. The vapor must overcome this liquid head to move up the column. In batch operation, the feed to the column is introduced batchwise. Regarding the equipment used to promote intimate contact of ascending vapor and descending liquid in a distillation column or tower, a distinction is generally made between plate or tray columns and packed columns, and in the case of the latter, between randomly and orderly packed columns, that is, random and structured packings. The terms trays and plates are used interchangeably. Pdf modeling and control of distillation column in a. Trayed columns utilize a pressure and temperature differential to separate the products. One way of classifying distillation column type is to look at how they are operated. Types of tray trays are the most commonly selected type of distillation column. There are many types of distillation columns, each designed to perform specific types of separations, and each design differs in terms of complexity. Types of distillation columns trayed column the number of trays is dependent on the number of equilibrium stages advantages better distribution can handle high liquid flow rates disadvantages higher pressure drop than packed columns foaming can occur due to induced agitation.
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