The structured packing of the rectification tower is made of stainless steel orifice plate corrugated packing. The material is carbon steel, stainless steel 304, 321, 316L and other raw materials, and it is pressed into corrugated 0.15-0.20mm thick metal sheet packing with crests and troughs. There are small p4mm holes and several slits about 5mm long in the upper punch, which enhance the wetting function and may form two-way penetration. The opening rate is about 9-12%. The perforated plate surface has special textures to increase the effective mass transfer area. . This evenly distributes the dispersing function of the vapor-liquid fluid. The product not only has high void ratio and large specific surface area, but also has high compressive strength and good thermal shock resistance.
The corrugated structured packing of the rectification tower is composed of a number of metal corrugated sheets with parallel corrugations and placed straight. There are small holes (or no holes according to needs) on the corrugated sheets. The top angle of the corrugations is about 90°. 450 or 300 viewpoints. The flow channels of two adjacent corrugated sheets are 90°, and the upper and lower corrugated packing plates are rotated 90° and stacked. In the tower with a small diameter connected by flanges, the corrugated packing is made into a complete disc, and the diameter is slightly smaller than the inner diameter of the tower. In the tower with a larger diameter, each disc of corrugated packing is divided into several pieces, put into the tower through the manhole, and assembled into a complete disc in the tower. The corrugated sheets of the upper and lower packings rotate 900 to make the fluid Mix vigorously in the tower.
Stainless steel metal structured packing is mainly used in petrochemical industry, coal chemical coal to methanol, coal to oil, coal to propylene equipment, oil and gas treatment and chemical fertilizer industry, natural gas purification, refining, etc.
Metal stainless steel orifice plate corrugated packing has a wide range of uses in rectification, absorption, regeneration, heat transfer, stripping, flash evaporation, foam capture and other occasions, such as: oil-water separator packing in petrochemical industry and oil and gas treatment, Coalescer packing, three-phase separator corrugated plate packing, lubricating oil fractionation tower, glycol absorption tower, cyclohexane concentration tower, isopropanol tower, separation of ethyl styrene, debutanizer, cyclohexane recovery, gasoline Fractional distillation, atmospheric and vacuum oil refining and other equipment, propylene oxide rectification and rectification tower, refinery catalytic cracking equipment stabilization tower, ethyl styrene separation, high-purity oxygen preparation, propylene oxide separation, debutanizer, cyclohexane recovery , gasoline fractionation, atmospheric and vacuum refining and other equipment;
Fine chemical high concentration chlorine peroxide (hydrogen peroxide) rectification tower, methanol rectification;
Coal chemical industry Coal-to-ammonia, coal-based olefin, coal-to-methanol, comprehensive gas scrubber for dimethyl ether industrial gas production, ammonia water desorption tower, carbon-containing ammonia water recovery, saturated hot water tower, ammonia recovery tower, desulfurization tower; coking plant Benzene washing tower, debenzene tower and desulfurization tower for recovering crude benzene;
In the environmental protection industry, carbon-containing ammonia water recovery, carbon dioxide stripping urea desorption tower, acid sewage stripping tower.
The separation power of the structured packing in the rectification tower is high, and the extraction rate of the rectification tower is high. The oxygen and nitrogen extraction rates of the air separation equipment have two types: the extraction rate of the complete set of equipment and the extraction rate of the rectification tower, because the extraction rate of the complete set of equipment is different from that of the air separation equipment. capacity, liquid product output and other factors, it is difficult to measure the advantages of high separation power of structured packing, the extraction rate of rectification tower, especially the level of extraction rate of argon, can better represent the planning level of air separation equipment, and it has been put into production after actual measurement The new air separation equipment used adopts metal structure, and the oxygen extraction rate of the rectification tower has reached more than 99%, and the argon extraction rate has reached 79%.
The operating value of the oxygen content in the sewage nitrogen in the upper tower is the main indicator of the rectification and extraction rate. According to the actual measurement, the oxygen content in the sewage nitrogen can be less than 0.1%, and even can reach 150~200×10-4% .
Distillation column structured packing stainless steel orifice corrugated packing has high separation efficiency in the upper column and crude argon column, because their operating pressure is greatly reduced. The lower the operating pressure, the greater the benefit of oxygen, nitrogen, and Separation of argon, especially oxygen and argon. Under normal conditions, the extraction rate of oxygen can be greatly increased by 1% to 3%; the extraction rate of argon can be greatly increased by 5% to 10%.
