Product Overview: The 252Y plus metal corrugated plate packing and 250Y stainless steel corrugated plate packing are composed of several corrugated metal sheets arranged parallel and vertically. The sheets have small holes (or may be unperforated as needed), with a corrugation top angle of approximately 90 degrees. The channels formed by the corrugations are at a 45 or 30-degree angle to the vertical. The flow channels between adjacent corrugated sheets are at 90 degrees. The two trays of corrugated packing are rotated 90 degrees and stacked on top of each other, forming whole circular disks with a diameter slightly smaller than the tower's inner diameter within a tower connected by flanges at a smaller diameter. In towers with a larger diameter, each tray of corrugated packing is divided into several pieces, which are inserted into the tower through manholes and assembled into whole circular disks inside. The corrugated sheets of the packing on the two trays are rotated 90 degrees for installation, allowing for thorough mixing of the fluid within the tower.
The 252Y type plus metal perforated plate corrugated packing and the 250Y stainless steel perforated plate corrugated packing are made by stamping various metal thin plates with a thickness of 0.15-0.20mm. The plates are punched with φ4mm small holes and several fine slits about 5mm long, enhancing wettability and potentially allowing bidirectional penetration. The opening rate is approximately 9-12%, and the surface of the perforated plates features a special texture to increase the effective mass transfer area. Their separation capability is similar to that of wire mesh corrugated packing, but they have stronger anti-blocking ability.
Application Scope and Occasions:
The 252Y Type Plus metallic perforated plate corrugated packing and 250Y stainless steel perforated plate corrugated packing are widely used in mass transfer equipment for various applications such as distillation, rectification, absorption, desorption, extraction, chemical exchange, washing, regeneration, heat transfer, stripping, flash vaporization, and froth collection, featuring high throughput and excellent separation efficiency.
252Y type plus metal perforated plate corrugated packing and 250Y stainless steel perforated plate corrugated packing are used in three-phase separators or two-phase separators during crude oil and natural gas processing as oil-water separation packing, agglomeration plate packing, and vapor-liquid separation packing. Our metal plate corrugated packing is applied in several fields:
① Petrochemical: Ethylene/styrene separation, high-purity oxygen production, asphaltene separation, propylene oxide separation, butane tower, cyclohexane recovery, gasoline fractionation, atmospheric and vacuum refining, gasoline desulfurization, formaldehyde absorption tower, cyclohexane recovery tower, gasoline fractionation tower, catalytic reforming pre-fractionation tower, lubricating oil type vacuum tower in oil refineries, catalytic cracking unit stabilizing tower, aromatics separation and solvent oil separation tower, propane depropanizer, pressure distillation tower.
② Chemical Industry: Comprehensive gas washing tower, saturated hot water tower, ammonia recovery tower, desorption tower, shift saturated hot water tower, carbon dioxide removal tower, methanol distillation tower; ammonia recovery tower, washing tower, ammonia air mixer in the nitric and composite fertilizer project.
③ Environmental Protection Industry: Nitrogen ammonia water recovery, waste acetone recovery, high purity dimethylformamide recovery, acid wastewater stripping tower, etc.
④ Coal chemical industry: Wash tower for crude benzene recovery from coke oven gas, desulfurization tower, debenzenation tower, oil-removing converter, high-pressure ammonia wash tower, water wash tower, oil-dewatering tank, methanol absorption tower, water-gas desulfurization tower; steam stripping tower purification unit in coal-to-urea project.
⑤ Oil and Gas Treatment: Tri-phase or two-phase separators used as oil-water separator packing, coalescing plate packing, and vapor-liquid separator packing during crude oil and natural gas processing.
The differences between the 252Y type plus metal perforated plate corrugated packing and the 250Y stainless steel perforated plate corrugated packing
A bent piece is the plus hole plate corrugated packing, and the other is the regular hole plate corrugated packing. The plus version offers better flow rates and significantly reduced pressure drop compared to traditional structured packing. For new towers: tower diameter reduced. For existing towers: performance improvement with the same efficiency.
The primary difference lies in the initial distribution performance of the packing material. The one with straight edges is the plus packing, while the latter is the traditional packing. The plus packing excels in both liquid distribution and structural strength compared to the latter, which is more prone to uneven flow during packing operations!
