Patent ID: 9144783
Filing Date: 2015-09-29
Classification: B01J

Abstract:
1. A low pressure drop structured packing sheet, comprising a plurality of diversion windows and assuming an expanded state or an operating state, wherein, in said expanded state, said diversion windows and the rest of the packing sheet are on the same plane, each of said diversion windows comprises an opening defined by an upper side and a lower side and a fan-shaped portion, said opening and said fan-shaped portion share a same width h, said fan-shaped portion has a left part and right part divided by a central folding line and being symmetric with respect to said central folding line, said left part is between said central folding line and a left side line, said right part is between said central folding line and a right side line, and said left side line and said right side line intercept with an angle α of 10°-170°; and in said operating state, the packing sheet is partially folded along a polarity of parallel folding lines to assume a corrugated form with a plurality of crests and troughs, and said diversion windows are also partially folded along said central folding line with an angle β 3 of 10°-170° between said left part and right part of said fan-shaped portion.