Most hydrocarbon services use tray spacing of
(a) 150 mm to 700 mm
(b) 350 mm to 400 mm
(c) 450 mm to 600 mm
(d) 500 mm to 600 mm
The question was asked in a national level competition.
Enquiry is from Tray Flooding Mechanism topic in division Tray Design and Operation of Distillation Design