Structured Packing - Metal, Plastic and Ceramic Types

A perforated plate structured packing on the floor.
SP-01: Structured packing has high separating efficiency.

The structured packing is made of several packings with different geometrical shape and corrugation angle. According to different corrugation angle, it can be divided into X type and Y type. The X type stands for the 30° angle, and the Y type stands for the 45° angle. X type structured packing has small pressure drop and the Y type structured packing has better mass transfer property.

The structured packing can be divided into metal structured packing, ceramic structured packing and plastic structured packing.

Metal Structured Packing

Metal structured packing can be made of various metal materials, such as low carbon steel, stainless steel, Monel, Ti and others. The stainless steel structured packing is the most widely used because of the excellent corrosion and rust resistance and durable properties. Metal structured packing has different packing types, which can be divided into wire gauze structured packing and perforated plate structured packing.

Wire gauze structured packing

Wire gauze structured packing is made of various metal wires, such as stainless steel wire, monel wire, copper wire and then woven into wire gauze. Wire gauze structured packing has low pressure drop, high separating efficiency, it is the most widely used type among all metal structured packing. It is suitable for precise distillation and vacuum distillation devices.

Perforated plate structured packing

Perforated plate structured packing is made of various materials of metal plate. The plate are perforated to form a series of 5 mm holes and then corrugated. This design make the liquid evenly distributed. Additional, it can the improve the surface wettability of structured packing. The perforated plate structured packing has high strength and excellent corrosion and rust resistance performance to be used in the large diameter towers and high liquid loading applications.
There is a special perforated plate structured packing, which is named as protruded plate structured packing. The plate are protruded on the plate surface for improve the filtering efficiency.

A wire gauze structured packing with a detailed picture on the gray background.
SP-02: Wire gauze structured packing.
A perforated structured packing with a detailed picture on the gray background.
SP-03: Perforated plate structured packing.
A round shape protruded corrugated plate structured packing on the gray background.
SP-04: Protruded plate structured packing.
Specifications of perforated plate structured packing
Item Model Specific area
(m2/m3)
Bulk density
(kg/m3
Voidage
(%)
Pressure drop
(Pa/m3)
Theoretical plate number
m-1
SPMP-01 125Y 125 100 98 200 1 - 1.2
SPMP-02 250Y 250 200 97 300 2 - 2.5
SPMP-03 350Y 350 280 9 350 3.5 - 4
SPMP-04 500Y 500 360 92 400 4 - 4.5
SPMP-05 125X 125 100 98 140 0.8 - 0.9
SPMP-06 250X 250 200 97 180 1.6 - 2
SPMP-07 350X 350 280 94 230 2.3 - 2.8
SPMP-08 500X 500 360 92 280 2.8 - 3.2
Specifications of wire gauze structured packing
Item Model Specific area
(m2/m3)
Bulk density
(kg/m3
Voidage
(%)
Pressure drop
(Pa/m3)
Theoretical plate number
m-1
SPMW-01 250X 250 125 95 100 - 400 2.5 - 3
SPMW-02 500X 500 250 90 400 4 - 5
SPMW-03 700Y 700 280 85 600 - 700 8 - 10

Ceramic Structured Packing

Ceramic structured packing consists of many similar geometric design packing units. The geometric design is a series of corrugated sheets, which are placed in parallel. Ceramic structured packing has high filtering and separating efficiency to suit the complex applications. It also has low pressure drop, increased operating elasticity, minimum amplifying effect and maximum liquid treatment. Ceramic structured packing can be made into round or rectangular shape to suit different applications.

A round shape ceramic structured packing on the blue background.
SP-05: Round shape ceramic structured packing.
A rectangular shape ceramic structured packing on the blue background.
SP-06: Rectangular shape ceramic structured packing.
Specifications of ceramic structured packing
Item Model Voidage
(%)
Plate thickness
(mm)
Bulk density
(kg/m3)
Peak height
(mm)
Corrugation distance
(mm)
F factor
m/s
(kg/m3)0.5
Theoretical plate number
m-1
SPC-01 125Y 85 2.5 ± 0.5 490 23 42 3 1 - 1.5
SPC-02 150Y 84 2.2 ± 0.2 520 17 30 2.8 1.5 - 2
SPC-03 250Y 82 1.4 ± 0.2 580 13 22 2.5 2 - 3
SPC-04 350Y 80 1.2 ± 0.2 590 9 15 2 3.5 - 4
SPC-05 450Y 76 1 ± 0.2 630 6.5 11 1.5 -2 4 - 5
SPC-06 500Y 72 0.8 ± 0.2 650 6 10 - 10.5 9 - 12 5 - 6
SPC-07 550Y (X) 74 0.8 ± 0.2 680 5 10 1 - 1.3 5 - 6
SPC-08 700Y(X) 72 0.8 ± 0.2 700 4.5 8 1.2 - 1.4 6 - 7

Plastic Structured Packing

Plastic structured packing can be divided into wire gauze packing and plate packing. The wire gauze packing is made of PP and PE materials and the plate packing is made of PP or PVDF materials. Openings can be added onto the plate to improve the mass transfer efficiency. Similar to the ceramic structure packing and metal structured packing, the plastic structured packing can also be made into round or rectangular shapes. Special shapes can be customized.

Two wire gauze plastic structured packing on the gray background.
SP-07: Wire gauze plastic structured packing.
A plate type plastic structured packing on the gray background.
SP-08: Plate plastic structured packing.
A round shape plastic structured packing on the gray background.
SP-09: Round shape plastic structured packing.
A rectangular shape plastic structured packing on the gray background.
SP-10: Rectangular shape plastic structured packing.
Specifications of plastic structured packing
Item Model Specific area
(m2/m3)
Voidage
(%)
Bulk density
(kg/m3)
Theoretical plate number
m-1
Pressure drop
(Pa/m3)
Max F factor
m/s (kg/m3)0.5
Liquid loading
m3/m2.hn
SPP-01 125Y 125 98.5 37.5 1.0 - 2.0 200 3 0.2 - 100
SPP-02 125X 125 98.5 37.5 0.8 - 0.9 140 3.5 0.2 - 100
SPP-03 250Y 250 97 75 2.0 - 2.5 300 2.6 0.2 - 100
SPP-04 250X 250 97 75 1.5 - 2.0 180 2.8 0.2 - 100
SPP-05 350Y 350 95 105 3.5 - 4.0 200 2.0 0.2 - 100
SPP-06 350X 350 95 105 2.3 - 2.8 130 2.2 0.2 - 100
SPP-07 500Y 500 93 150 4.0 - 4.5 300 1.8 0.2 - 100
SPP-08 500X 500 93 150 2.8 - 3.2 180 2.0 0.2 - 100

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