Shanghai LifenGas Co., Ltd. products

Shanghai LifenGas Co., Ltd. specializes in the development of advanced equipment for the purification of rare gases, notably krypton and xenon. Utilizing cryogenic distillation principles, similar to those used in large-scale air separation, the system is designed to efficiently extract these gases from air where they exist in low concentrations. The process involves pressurizing liquid oxygen that contains trace krypton and xenon, which is then transported to a fractionation column. Through a series of technological innovations including pressurized evaporation, methane and oxygen removal, combined with proprietary purification systems, the resulting product is high-purity liquid krypton and xenon. The purification system boasts low energy consumption and high extraction rates, with over 91% efficiency. These gases are vital in a range of industries such as semiconductor manufacturing, lighting, and medical applications. The purification process incorporates advanced HYSYS simulation software and offers a highly reliable and economically valuable operation.

An Air Separation Unit (ASU) is engineered to utilize air as a raw material, compressing and cooling it to cryogenic temperatures for the separation of oxygen, nitrogen, argon, and other gases through rectification. The ASU can cater to user requirements by producing either a singular gas such as nitrogen or multiple gases like oxygen, nitrogen, and argon. The output can be in both liquid and gaseous forms, provided for diverse industrial applications. Initially, air is processed via filtration, compression, and purification to eliminate moisture, carbon dioxide, and hydrocarbons. The processed air is divided: one portion undergoes heat exchange before entering fraction columns, while the other proceeds through the main heat exchanger and expansion units before reaching the separation columns. The ASU features high-efficiency equipment, including a condensing evaporator that enhances process safety by minimizing hydrocarbon accumulation. This setup complies with rigorous national standards, ensuring structural integrity and operational reliability.

The PSA Nitrogen Generator utilizes pressure swing adsorption technology to effectively separate nitrogen from oxygen in the air. This process employs carbon molecular sieve adsorbents, derived from high-quality coal, coconut shell, or epoxy resin, to accelerate the diffusion of oxygen over nitrogen into the sieve's pores. Consequently, nitrogen remains primarily outside the adsorbent's structure, allowing it to be collected as a high-purity product. This equipment boasts several technical advantages, such as skid-mounted delivery for quick installation, a compact design, rapid startup time of about 30 minutes, and automated, unmanned operations. Nitrogen purity can be adjusted between 95% and 99.9995% based on requirements. Additionally, the system ensures a lifespan of more than a decade with minimal maintenance, making it ideal for industries like metal treatment, chemical processing, electronics, and food preservation, where high-purity nitrogen is critical.

The VPSA Oxygen Generator by Shanghai LifenGas utilizes a pressurized adsorption and vacuum extraction process to generate high-purity oxygen from the air. The system uses a compressor to introduce air into an adsorption bed where a specialized molecular sieve selectively adsorbs nitrogen, carbon dioxide, and water. Under vacuum conditions, this sieve is desorbed, yielding oxygen with 90-93% purity. Designed for industrial efficiency, these generators are customizable, producing anywhere from 100 to 10,000 Nm³/h of oxygen. Known for low energy consumption, especially as plant size increases, LifenGas' generators employ lithium-based zeolite adsorbents and radial flow towers to optimize performance and durability. These generators find vital applications in industries like metal smelting, ammonia production, power generation, and glass manufacturing, where oxygen enrichment is crucial. The system's technical design ensures minimal energy use and stability, while dedicated features like noise reduction and remote management options enhance operational efficiency.