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Which of the following is the oldest type of the tower packing?(a) Asbestos(b) Raschig rings(c) Wood(d) PVCI have been asked this question in an online quiz.Query is from Packing Types and Objectives in chapter Packing Design and Operation of Distillation Design

Answer»

The correct choice is (b) Raschig rings

Explanation: This is the OLDEST type of the tower packing INTRODUCED by the GERMAN chemist F. Raschig in 1907, it is a hollow CYLINDER having equal diameter to its length.



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