Patent ID: 7235158
Filing Date: 2007-06-26
Classification: B01D,Y10S

Abstract:
1. A perforated tray column without downcomer comprising perforated trays without downcomer, each said tray formed of a plurality of divided tray segments and each tray comprising a plurality of openings having an opening ratio such that opening ratio (A) determined from a standard pitch between the centers of said openings and opening ratio (B) based on the diameter of a column forms a (A)/(B) ratio in the range of 1.1-1.5, at least one support member for supporting each of said perforated trays without downcomer, wherein a joining part between adjacent said divided tray segments of said perforated trays without downcomer is equipped with notches and/or liquid holes so that a gas or liquid is precluded from channeling or stagnating and the distance between the centers of the openings in the tray immediately adjacent to the at least one support member is within 50 mm of the at least one support member.