metal structured packing

Metal Structured Packing is a highly efficient type of stainless steel column packing made of thin corrugated metal sheets or stainless steel wire mesh. Each layer is corrugated and stacked at alternating orientations, forming an open honeycomb structure that enhances vapor-liquid contact. This design allows uniform gas and liquid distribution, low pressure drop, and excellent mass transfer performance.

The mesh structured packing is produced by punching and stretching stainless steel plates into diamond-shaped mesh sheets, which are then corrugated and assembled into structured layers. It combines the advantages of both wire mesh packing and metal plate corrugated packing—offering high efficiency and cost-effective performance. The diamond mesh structure is covered by a liquid film, and the uneven surface enhances turbulence and mixing, increasing the renewal rate of the liquid film.

Metal corrugate packing features a grooved and perforated surface design that improves liquid wettability and distribution, providing higher separation efficiency and resistance to fouling. It is widely used in chemical, petrochemical, fertilizer, and gas processing industries where high-performance separation is required.

Feature

• High surface area ensures efficient gas-liquid contact.
• Low pressure drop, ideal for vacuum and low-pressure operations.
• Excellent wettability and liquid distribution uniformity.
• High mechanical strength and corrosion resistance.
• Available in various configurations: 100Y, 125Y, 160Y, 250Y, 350Y, 450Y, etc.
• Manufactured from stainless steel 304, 304L, 316, 316L, carbon steel, or aluminum alloy.

Specification

Material: Carbon steel, stainless steel 304, 304L, 410, 316, 316L, or aluminum alloy.

Model	Void Volume (%)	Piece Thickness (mm)	Bulk Density (kg/m³)	Waved Height (mm)	Waved Distance (mm)	Gear-shape Angle (°)	F-Factor (φ)	Theoretical HETP (piece/m)
450Y	76	1 ±0.2	600	6	11	80	1.5–2	4–5
350Y	80	1.2 ±0.2	580	9	15	80	2	3.5–4
250Y	82	1.4 ±0.2	530	13	22	80	2.5	2–3
160Y	84	2.2 ±0.2	500	17	32	80	2.8	1.5–2
125Y	85	2.5 ±0.5	480	23	42	80	3	1–1.5
100Y	87.5	2.5 ±0.5	460	30	50	80	3.5	1

Advantage

• High capacity: New tower designs can reduce column diameter, while existing towers can significantly increase capacity.
• High separation efficiency: Larger specific surface area ensures more effective mass transfer compared to random packing.
• Low pressure drop: Reduces energy consumption and enhances overall process efficiency.
• Large flexibility: Suitable for all tower diameters; minimal scale-up effects.
• Corrosion resistance: Excellent resistance to acid, alkali, H₂S, naphthenic acid, and chloride corrosion.
• Low liquid hold-up and quick response to load changes.
• Durable and easy to install, remove, and clean.

Application

Metal structured packing is widely used in various mass transfer operations, including:

• Chemical and petrochemical distillation columns
• Fine chemical purification and solvent recovery
• Fertilizer and oil refining processes
• Gas absorption and desorption towers
• Atmospheric and vacuum rectification systems
• Environmental protection and exhaust gas treatment units

Package

The packing is carefully packed in wooden boxes or steel frames to avoid deformation during transportation. Each layer is labeled for easy identification, assembly, and installation on-site. Custom packaging is available according to client requirements.