Cryogenic Asu 100tpd Lox Lin Lar Full Liquid Air Separation Plant

About UsGreenfir is a professional natural gas processing, liquefaction plant, air separation unit, heat exchanger, reciprocating piston compressor, cryogenic cold box, fractionating column manufacturer and solutions provider with ISO 9001: 2015, ISO 14001: 2015, ISO 45001: 2018 and ASME U certified.Greenfir has successfully designed, manufactured and delivered more than 300 sets of natural gas purification, liquefication plants, air separation units, CNG filling stations, cryogenic cold box, etc. all-around China, Middle East, Central Asia and Southeast Asia, etc. We can deliver skid-mounted solutions customized to meet client's challenges and requirements (including adverse weather conditions, transportation and plot area limitations, etc.).We treat all the cryogenic solutions with serious attitudes and professional experience. Combined with our knowledge and experience, Greenfir provides each client with a technology-leading solution you can count on and bring a wider range of options and more profits.Product DescriptionCryogenic air separation plants utilize a low-temperature rectification process to produce oxygen, nitrogen, and argon. These plants can generate gaseous products for pipeline distribution or cryogenic liquids for delivery by truck or for storage.Greenfir provides expertise to design and manufacture world-class, cost effective, custom-built air separation plants. We will work closely with your project team to help accurately define the ideal scope for your Nitrogen, Oxygen or Argon project. Expert designers will help narrow your options through a series of engineering and cost optimization steps. We will help you arrive at the right-sized, right-priced solution that can meet your delivery and start-up schedule. Most noteworthy, liquid air separation plant pioneers the trend of future development. Because liquid products are easy for quality control, storage, and delivery. In addition, they also work with higher efficiency. Therefore, the liquid air separation unit will probably be favored by more and more users.Moreover, our experienced technical team will propose the most economical solutions that best meet your requirements. Furthermore, the O2 and N2 yield can either be gas or liquor. Most of all, when the output is large enough, you will consequently get the highly profitable by-product-argon gas or liquid argon.Since establishment, we designed and produced more than almost 20 different sets of air separation plants. Especially relevant, they all feature reasonable workmanship and small power consumption, high efficiency, and stable performance.Basic Air Separation Unit (ASU) Components1.Main Air Compressor (MAC)The MAC compresses atmospheric air, generally to 60-90 PSIG and delivers it to the system. These compressors are normally driven by electric motors. Interstage coolers are provided to remove heat of compression between each stage of compressor, of which there are normally 2-3.2.Front End Clean UpModern ASUs utilize a Prepurifier Unit (PPU), which removes moisture, CO2 and most hydrocarbons from the air. Moisture and CO2 must be removed to prevent ice and dry ice from forming later in the process. A PPU is typically made up of a chiller to cool the air to 40-55 ºF, a condensate separator to remove free water and 2 vessels filled with desiccant and mole sieve material, which adsorbs the contaminants while allowing the air to pass through. One bed is always on line to the process, while the other bed is regenerated with heated waste Nitrogen to remove accumulated contaminants. Beds automatically switch every 5-8 hours. The air from the PPU is very close to moisture and CO2 free.Some older ASUs utilize reversing heat exchangers to accomplish front end clean up. These systems contain special cryogenic heat exchangers that freeze out the moisture and CO2, allowing clean air to flow to the distillation process. The passes in the heat exchanger are switched every 3-10 minutes by a series of butterfly and check valves. One pass removes contaminates while the other is regenerated by outgoing waste gases.Though moisture and CO2 removal by reversing heat exchangers is economical both in capital cost and operating cost.3.Cold BoxThe coldbox contains the cryogenic heat exchangers, distillation columns and associated valves and piping. Because parts of this system are very cold, all components are mounted inside the coldbox and then encased in insulation. Coldboxes can be rectangular or cylindrical and are usually tall, some over 200′ depending on capacity and type of Argon system.Modern coldboxes are filled with perlite insulation, which is light and easy to install and remove, when necessary. Older coldboxes may be tightly packed with cryogenic rockwool, which is hand packed to 14 pounds per cubic foot. It is very time consuming to install and remove.4.Turbo-expanderAll ASUs except some very small units have expanders. Expanders provide the required refrigeration to produce liquids in the