China Jiangsu Luoming Purification Technology Co., Ltd. Company News

Oxygen supply is the lifeline of medical services, directly affecting patient safety and clinical operations. Driven by advanced gas separation technology and growing demands for medical safety and efficiency, hospitals have undergone a major shift in oxygen supply methods: moving from traditional reliance on oxygen tanks or bags to self-built systems that integrate on-site oxygen production, pipeline installation and immediate use. This transformation optimizes supply efficiency and delivers a more convenient, safe, economical and hassle-free solution. The limitations of traditional oxygen supply highlight the necessity of this transformation. Oxygen tanks and bags have obvious drawbacks: transportation and storage are cumbersome and risky (oxygen, as a flammable and explosive gas, may leak or explode if impacted); supply is discontinuous, with potential shortages due to transportation delays from weather or road conditions; long-term purchase costs—including oxygen, transportation and labor fees—burden primary medical institutions with limited funds. Against this backdrop, self-built oxygen supply systems have emerged, with the medical molecular sieve oxygen generator as their core. Using advanced gas separation technology, this equipment takes air as raw material, separates oxygen from nitrogen via molecular sieves, and produces high-purity medical oxygen. Its advantages are notable: flexible and convenient, it adjusts oxygen flow to match ICU’s high demand or general wards’ routine needs, enabling on-demand, immediate use and eliminating tedious storage and replacement. Safety is another key advantage. Operating at low pressure, it significantly reduces leakage and explosion risks compared to high-pressure tanks. The closed-loop production process avoids oxygen pollution during transportation and storage, ensuring purity and hygiene—critical for immunocompromised patients like neonates in ICUs and major surgery patients. Economically, self-built systems save hospitals long-term costs. Despite initial investment in equipment and pipelines, the raw material (air) is free and inexhaustible. Operating costs are only electricity and maintenance fees, far lower than the long-term expenditure of purchasing oxygen tanks. These systems are particularly suitable for hospitals in poorly accessible areas. In remote mountains or borders, oxygen tank transportation is difficult, costly and prone to supply interruptions. The medical molecular sieve oxygen generator enables on-site production without external transportation, ensuring stable oxygen supply and improving medical security in remote regions. To enhance supply reliability, many hospitals install busbars (manifolds) as backup and emergency gas sources in self-built systems. Integrating multiple cylinders for oxygen storage, busbars can be activated immediately when the oxygen generator fails (due to maintenance, power outages, etc.), forming multi-dimensional protection for continuous supply. This dual-supply mode boosts system stability and helps hospitals handle emergencies, safeguarding patients’ lives. In conclusion, the shift from oxygen tank purchase to self-built supply systems is an inevitable trend driven by technology and medical needs. With the medical molecular sieve oxygen generator as the core and busbars as backup, this new mode eliminates traditional drawbacks, bringing convenience, safety, economy and stability. Future advancements in gas separation technology will further promote its application, contributing more to the medical and health industry.

Recently, valued clients from Kazakhstan traveled thousands of miles to pay a special visit to the production base of Luo Ming Purification Equipment Co., Ltd. for an on-site factory inspection. After a comprehensive and detailed assessment of the company's production capacity, technological R&D, product quality, and service system, the clients spoke highly of Luo Ming's overall strength, and both parties reached a consensus on in-depth cooperation, laying a solid foundation for Luo Ming's expansion into the Central Asian market. As an expert in gas equipment manufacturing, Luo Ming has been dedicated to the design, manufacturing, and service of gas separation and integrated equipment since its establishment in 2020. Through years of in-depth cultivation and accumulation, it has developed into a benchmark enterprise in the industry. This time, the Kazakhstani clients selected Luo Ming from numerous global suppliers due to their gas treatment project needs. The on-site factory inspection was precisely to personally verify the enterprise's hard power and service guarantee capabilities. During the inspection, accompanied by the company's leaders and technical team, the clients visited the production workshop, R&D center, product exhibition area, and testing laboratory one after another. In the production workshop, the clients carefully inspected the production processes of core products such as oxygen generators and nitrogen generators. From raw material selection, component processing to whole-machine assembly and quality inspection, the refined management and strict quality control standards in every link won high praise from the clients. Regarding the product performance and technical parameters that the clients focused on, the technical team demonstrated the operating principles of the PSA oxygen generation system and molecular sieve nitrogen generation equipment on-site, and professionally interpreted core advantages such as the 99.5% high-purity oxygen preparation technology and the nitrogen generation technology with a maximum purity of 99.9995%, allowing the clients to have a more intuitive understanding of the product's stability, energy efficiency, and safety. In the R&D center, the clients learned that Luo Ming has been deeply involved in the gas industry for many years. The founder has 30 years of industry experience and maintains technical cooperation with world-renowned universities such as the University of Oxford and Hong Kong Polytechnic University, as well as governments of many countries, including gas projects for laboratories of the University of Oxford and Hong Kong Polytechnic University, and gas projects with the government of Peru in South America and Ghana in Africa. The company has obtained a number of utility model patents, passed multiple international management system certifications such as ISO9001 and ISO13485, and has also won many honors such as "China Famous Brand" and "National Advanced Unit for After-sales Service". These valuable qualifications and achievements have further strengthened the clients' confidence in cooperation. Talking about their feelings about the factory inspection, the client representative said: "Luo Ming's production scale, technical strength, and quality control system have completely exceeded our expectations. Especially the wide application cases of its products in various fields such as industry, medicine, electronics, and metallurgy, as well as the comprehensive pre-sales, in-sales, and after-sales service system, make us full of expectations for future cooperation. Choosing Luo Ming is a trusted choice after careful consideration." The successful factory inspection by the Kazakhstani clients this time is not only a high recognition of Luo Ming's overall strength but also an important milestone in the enterprise's international strategic layout. Luo Ming has always adhered to the concept of "Quality Creates the Future, Service Builds the Brand" and the core values of integrity, pragmatism, progress, gratitude, and excellence, providing professional one-stop gas system solutions for global clients. Currently, the company's products are exported to many regions including Asia, South America, Southeast Asia, and Africa, and have established long-term and stable cooperative relationships with many enterprises and multinational groups. In the future, Luo Ming will continue to take technological innovation as the core driving force, continuously optimize product performance, improve the service system, and provide higher-quality gas equipment and solutions for more clients around the world. It will win the trust and recognition of more international markets with its strength and steadily move towards the goal of becoming a "leader in the global gas industry"!   Contact Information: Tel: +86 15850254955 Website: https://www.lmoxygenplant.com Email: sales005@szhdjh.com.cn

How Does a Pressure Swing Adsorption (PSA) Oxygen Generator Deliver High-Purity Oxygen Efficiently and On-Demand? The industrial landscape relies heavily on a consistent, cost-effective supply of high-purity oxygen for processes ranging from steel cutting and welding to wastewater treatment and ozone generation. Historically, this supply was dependent on cryogenic distillation or the delivery of liquid oxygen (LOX) in bulky tanks, presenting logistical, safety, and supply chain challenges. Today, the modern solution—the Industrial Oxygen Generator utilizing Pressure Swing Adsorption (PSA) technology—has revolutionized industrial gas sourcing. The crucial question for manufacturers and operational managers is: How exactly does this sophisticated system deliver oxygen efficiently, on-demand, and to what level of purity can it reliably achieve? The genius of the PSA oxygen generator lies in its simplicity of operation combined with its molecular-level selectivity. The process leverages the physical properties of a specialized material, known as zeolite molecular sieve (ZMS), to separate nitrogen from ambient air. Air, the raw material for the generator, is composed of roughly 78% nitrogen, 21% oxygen, and 1% argon and other trace gases. The PSA cycle is designed to isolate the desirable 21% oxygen content. The PSA process operates cyclically within two or more adsorption vessels (towers) filled with the ZMS material. The cycle follows four key steps: 1. Adsorption (Pressurization): Compressed, filtered ambient air is fed into one of the vessels. The ZMS exhibits a stronger attractive force (adsorption) for nitrogen molecules than for oxygen molecules. As the pressure rises, the nitrogen molecules are preferentially trapped and held onto the surface of the ZMS pellets, while the less-adsorbed oxygen molecules pass through the vessel and are collected in a buffer tank. This is the moment the product gas, high-purity oxygen, is generated. The effectiveness of this step directly correlates with the applied pressure—higher pressure generally means faster and greater nitrogen adsorption, though it must be balanced against energy consumption. 2. Pressure Equalization: Before the saturated vessel is completely depressurized, the high-pressure gas remaining inside is channeled to the empty, regenerated tower. This equalization step helps to efficiently transfer energy and pre-pressurize the next tower in the sequence, minimizing the sudden pressure drop and conserving a portion of the compressed air energy that would otherwise be wasted, contributing significantly to the system's overall energy efficiency. 3. Desorption (Depressurization): Once the first vessel reaches its maximum adsorption capacity (nitrogen saturation), the inlet valve is closed, and a vent valve is opened, rapidly reducing the pressure back to atmospheric levels. The drop in pressure causes the ZMS to release the trapped nitrogen molecules—a process known as desorption. This nitrogen-rich waste gas is safely vented back into the atmosphere. This step regenerates the ZMS, preparing it for the next adsorption cycle. 4. Purge: A small stream of product oxygen from the active, pressurized tower is directed into the regenerated (depressurized) tower. This brief purge flow helps to sweep out any remaining trace nitrogen and further clean the ZMS, ensuring the highest possible purity for the subsequent cycle. The process then alternates between the two towers, ensuring a continuous, steady flow of oxygen to the industrial application. Achieving High Purity and Efficiency: The core of the system's efficiency and purity is the quality of the ZMS material and the intelligent control system. A high-quality molecular sieve provides optimal selectivity and high nitrogen adsorption capacity. Furthermore, a sophisticated control system uses advanced algorithms to precisely manage valve timing, pressure settings, and cycle duration. This meticulous control is essential because purity and flow rate are inversely related to efficiency. The manufacturer must optimize the system to meet the client's specific demands—typically providing oxygen purity between 90% and 95%. In summary, the Industrial PSA Oxygen Generator is a triumph of applied surface chemistry and engineering. It transforms a free, ubiquitous resource (air) into a crucial, high-purity industrial gas by leveraging the selective adsorption properties of ZMS under varying pressure. This system provides a safe, reliable, and fundamentally more cost-effective solution than relying on external gas suppliers, giving industries the power to generate their own critical resource right at the point of use, precisely when they need it. The continuous, cyclical operation guarantees that the end-user never faces the logistical delays or supply disruptions associated with traditional gas delivery methods.

Why Is On-Site Oxygen Generation a Superior and More Cost-Effective Solution Than Traditional Liquid Oxygen Delivery? For decades, industries requiring large volumes of oxygen—from medical facilities and aquaculture farms to chemical processing plants—have relied on cryogenic oxygen delivered as a liquid (LOX) in insulated tankers and stored in massive on-site tanks. While effective, this traditional method carries significant fixed costs, safety risks, and logistical dependencies. The emergence of the Industrial Oxygen Generator has challenged this status quo, raising a fundamental question for modern business operations: Why has on-site generation, specifically via technologies like PSA, become the superior and demonstrably more cost-effective long-term solution compared to the reliance on external gas suppliers? The answer lies in a comprehensive comparison across three critical operational pillars: Economic Savings, Operational Safety, and Supply Chain Control. 1. Superior Economic Savings and Cost Predictability: The primary advantage of on-site generation is the transformation of gas costs. With traditional LOX delivery, the user pays for the gas itself, the cryogenic processing costs (energy-intensive liquefaction), the specialized cryogenic transportation, the gas supplier's profit margin, and often substantial rental fees for the storage tanks. These costs are subject to volatile energy prices and supply chain inflation. By contrast, an Industrial Oxygen Generator converts a capital expenditure (the purchase of the generator) into predictable operational costs primarily limited to electricity and routine maintenance.   Elimination of Recurring Delivery Fees: The substantial and permanent removal of tanker delivery fees, driver wages, and emergency delivery surcharges results in immediate and sustained savings.   Reduced Gas Cost: Once the initial investment is amortized, the cost of generating oxygen is driven almost entirely by the cost of the electrical power used to run the air compressor. This internal cost is typically a fraction of the market price for delivered oxygen.   Tax Benefits and Asset Ownership: The generator is a company asset that can be depreciated, offering tax advantages not available with leased equipment. Over the generator’s typical operational lifespan of 15-20 years, the total cost of ownership is drastically lower than continuous LOX purchasing.   2. Enhanced Operational Safety and Reduced Hazard Exposure: Cryogenic oxygen storage introduces unique and severe safety hazards that are significantly mitigated by on-site generation.   Elimination of Cryogenic Hazards: LOX storage tanks contain gas at extremely low temperatures ($-183^{circ} text{C}$ / $-297^{circ} text{F}$), requiring specialized handling and PPE to prevent cold burns. A leak can instantly create localized, highly combustible oxygen-rich environments. The PSA generator only handles oxygen at near-ambient temperatures and moderate pressures, eliminating the cryogenic risk entirely.   Smaller, Safer Storage Footprint: While the PSA system does use a buffer tank, the total stored volume is significantly less than a large LOX tank, which can hold tens of thousands of liters. Furthermore, the oxygen generated by PSA is typically between 90% and 95% pure, reducing the risk profile compared to the 99.5% + purity of cryogenic gas, which is often considered more reactive.   Reduced Traffic and Handling: Eliminating the need for large tanker trucks to maneuver and connect to the facility reduces site traffic risks, potential accidents, and the external exposure necessary for transfers.   3. Unmatched Supply Chain Control and Scalability: Dependence on an external supplier subjects operations to external factors: labor disputes, severe weather, road closures, or supplier facility issues. Any interruption can halt a time-sensitive production process.   Guaranteed 24/7 Supply: An on-site generator provides complete self-sufficiency. As long as the facility has power and access to ambient air, oxygen generation continues. This eliminates the vulnerability of relying on an external logistics chain.   Scalability and Flexibility: Industrial Oxygen Generators are inherently modular. If a company's oxygen needs grow, additional modular units can be seamlessly added to the existing system to increase capacity without replacing the entire infrastructure. This is far more flexible than commissioning a larger, fixed LOX storage system.   Purity Customization: While LOX delivery offers one fixed purity (typically 99.5%), a modern PSA system can be tuned to meet the specific requirements of the application—often 93% for medical and aquaculture, or 95% for cutting—without over-purifying, thereby saving energy.   In conclusion, for any operation that consumes significant volumes of oxygen, the shift to an Industrial Oxygen Generator is a logical, strategic move. It is a transition from a volatile, dependent operational expense to a predictable, controlled capital asset. The combined benefits of massive long-term cost savings, drastically improved safety standards, and guaranteed supply chain independence make on-site generation via PSA the unequivocally superior solution for the demands of modern industrial efficiency and reliability.  

​Selecting the correctly sized oxygen generator is paramount to achieving optimal efficiency and meeting production demands. Sizing is a two-fold process: determining the required flow rate (measured in Normal Cubic Meters per Hour - Nm³/h) and the necessary purity level (typically 93-95%). Undersizing leads to process starvation and inadequate oxygen supply, while oversizing results in wasted capital investment and higher than necessary energy consumption. The calculation begins with a detailed audit of all oxygen-consuming equipment and processes in the facility. The peak simultaneous demand, rather than just the total theoretical demand, must be established. It's also crucial to consider future expansion plans to ensure the system can scale. Factors such as ambient air conditions (temperature and humidity) at the installation site also impact the compressor's performance and must be factored in. Our engineering team typically conducts a comprehensive analysis of your specific needs, using this data to recommend a generator model that provides a safe margin above your peak demand without being excessively large, ensuring maximum efficiency and reliability.

​Investing in an on-site oxygen generator is a strategic decision that leads to dramatic and sustained operational cost reduction. The most significant saving comes from eliminating recurring expenses associated with third-party suppliers. This includes the costs of the oxygen itself, cylinder rental fees, hazardous delivery charges, and "run-out" emergency premiums. Furthermore, liquid oxygen involves substantial evaporative losses (often up to 5% per day), a cost that is completely eradicated with on-site generation. The operational cost becomes primarily the electricity required to power the air compressor and control system. This results in a predictable, stable cost per cubic meter of oxygen, insulating your business from market price fluctuations and supply chain disruptions. The return on investment (ROI) is typically achieved within 12 to 24 months, after which the oxygen is produced at a fraction of the delivered cost. Additional savings are realized through reduced administrative overhead for managing orders and deliveries, lower insurance premiums due to reduced on-site hazards, and freed-up space previously used for storage. This transition fundamentally shifts oxygen from a variable expense to a fixed, manageable cost center.

​ Pressure Swing Adsorption (PSA) technology is the engineering marvel that enables reliable and efficient oxygen production on-site. Its reliability stems from a simple, robust design with no moving parts within the separation towers themselves. The key component is the Zeolite Molecular Sieve, a synthetically produced aluminosilicate mineral with a precise pore size. When compressed air is forced through the sieve, the smaller nitrogen molecules are trapped within these pores, while the larger oxygen and argon molecules pass through. The system's continuous output is ensured by the twin-tower design. While one tower is actively separating air and producing oxygen, the other is undergoing regeneration. This regeneration process involves rapidly depressurizing the tower to release the adsorbed nitrogen, which is vented away. A small portion of the produced oxygen is often used to purge the second tower, ensuring it is clean and ready for the next cycle. The control system seamlessly alternates the valves between the two towers every few seconds, creating a steady, pulsation-free flow of oxygen. This clever design ensures non-stop operation and consistent purity levels, typically between 91% and 95%, which is ideal for most industrial applications.  

As the global aquaculture industry shifts toward intensive, sustainable farming practices, dissolved oxygen (DO) levels have emerged as the critical factor determining aquatic organism survival, growth rates, and overall farm profitability. Today, we are proud to introduce our advanced oxygen generator tailored for aquaculture applications, engineered to address the industry’s biggest challenges—unstable oxygen supply, high energy consumption, and unpredictable crop losses—empowering farmers to achieve consistent, high-yield harvests.   In intensive aquaculture settings, from high-density shrimp ponds to industrial recirculating aquaculture systems and fish hatcheries, traditional aeration methods such as paddle wheels or water turbines often fall short. These outdated solutions suffer from low oxygen transfer efficiency, uneven DO distribution, and excessive energy use, while posing risks of stress or physical harm to delicate aquatic species. Our oxygen generator, built on state-of-the-art Pressure Swing Adsorption (PSA) technology, delivers a game-changing alternative by producing high-purity oxygen on-site, ensuring reliable and precise oxygenation for diverse farming scenarios.   “Dissolved oxygen is the lifeblood of aquaculture. Fluctuations or shortages can lead to mass mortality events, especially during hot summer months or rainy seasons when natural oxygen levels plummet,” said Aquaculture Product Director. “Our oxygen generator solves this by providing continuous, adjustable oxygen supply, enabling farmers to maintain optimal DO levels (5-8 mg/L) tailored to their specific species and stocking densities. The result is healthier, less stressed aquatic life, improved feed conversion rates, and significantly reduced risk of crop failure.”   Key Advantages Driving Aquaculture Innovation   Our aquaculture oxygen generator stands out with a suite of industry-leading features designed for performance, efficiency, and ease of use:   1. Superior Oxygenation Efficiency: Equipped with micro-bubble aeration technology, the system converts high-purity oxygen into tiny bubbles (20-30μm) that rise slowly through the water column. This maximizes gas-liquid contact area and retention time, boosting oxygen transfer efficiency by 30%-50% compared to traditional aerators. It effectively eliminates DO stratification, ensuring uniform oxygen distribution from the pond bottom to the surface, while oxidizing harmful substances like ammonia and hydrogen sulfide to improve water quality .   2. Energy-Saving & Cost-Effective: The PSA-based design minimizes energy consumption, reducing operational costs by 30%-40% compared to conventional oxygen supply methods such as liquid oxygen tanks. On-site oxygen production eliminates the need for expensive cylinder transportation, rental, and storage, delivering long-term savings for farmers.   3. Intelligent & Unattended Operation: Integrated with a PLC control system and real-time DO monitoring sensors, the generator automatically adjusts oxygen output based on water conditions. It supports remote monitoring and control via mobile apps, sending instant alerts for equipment malfunctions or abnormal DO levels. This eliminates the need for 24/7 on-site supervision, reducing labor costs and alleviating farmer anxiety about sudden oxygen shortages .   4. Durable & Environmentally Adaptive: Constructed with corrosion-resistant stainless steel and waterproof components, the system thrives in high-humidity, salt-rich aquaculture environments. Its low-noise operation avoids causing stress to aquatic organisms, making it ideal for sensitive applications such as fry rearing and valuable species cultivation (e.g., sea cucumbers, lobsters) .   The versatility of our oxygen generator makes it suitable for a wide range of aquaculture scenarios, including high-density pond farming, industrial RAS, hatcheries, live seafood transportation, and emergency oxygenation during low-oxygen crises. It has already been adopted by leading aquaculture producers worldwide, delivering tangible results. In a Chilean salmon holding facility, the system reduced oxygen consumption by 63% while maintaining stable DO levels, enabling safer high-density stocking and improving final product quality. Similarly, in Norwegian waiting cages, average DO levels increased from 46.5% to 88% during summer months, eliminating seasonal oxygen-related risks .   As the global aquaculture market continues to expand—with the deep-water aeration equipment segment projected to exceed $4.5 billion by 2025—sustainable and efficient oxygen solutions are becoming indispensable . Our oxygen generator not only meets the current needs of intensive farming but also aligns with global trends toward green, intelligent aquaculture.   To support farmers worldwide, LuoMing offers customized solutions based on farm size, species, and local conditions, along with a comprehensive after-sales service network providing 24-hour technical support and on-site maintenance. We are committed to empowering the aquaculture industry with cutting-edge technology, driving productivity, profitability, and environmental sustainability.   With a focus on innovation and customer-centricity, we deliver reliable, energy-efficient products and professional services to clients across the globe.

​The shift from delivered oxygen to on-site generation is driven by compelling economic, logistical, and safety advantages. Traditional methods involving liquid oxygen (LOX) tanks or high-pressure cylinders come with significant recurring costs, including delivery charges, rental fees, and evaporative losses. These costs are volatile and can escalate quickly with increased consumption. In contrast, an on-site generator has a predictable cost structure centered primarily on electricity to run the air compressor, resulting in substantial long-term savings and a rapid return on investment. Logistically, on-site generation eliminates the dependency on supplier schedules and the risk of production halts due to delivery delays. It also frees up valuable floor space previously used for storing numerous cylinders or large LOX tanks. From a safety perspective, it dramatically reduces the hazards associated with handling high-pressure vessels and storing large quantities of oxidizer, thereby enhancing overall workplace safety. The on-demand production model provides unparalleled operational autonomy, allowing facilities to control their oxygen supply based solely on their own production needs, making it a smarter, more sustainable choice for modern industry.

​An industrial oxygen generator is a self-contained system that separates oxygen from compressed ambient air, providing a continuous, on-demand supply of high-purity oxygen. Unlike traditional methods that rely on delivered cryogenic liquid or high-pressure oxygen cylinders, these generators utilize a technology called Pressure Swing Adsorption (PSA). The process begins with an air compressor drawing in ambient air, which is then passed through a series of filters to remove contaminants, moisture, and oil. The core of the system consists of two towers filled with a specialized material called a Zeolite Molecular Sieve. This sieve has a high affinity for adsorbing nitrogen molecules under pressure. Compressed air is directed into the first tower, where the Zeolite traps nitrogen, allowing oxygen (and argon) to pass through as the product gas. While the first tower is producing oxygen, the second tower is simultaneously depressurized to vent the captured nitrogen into the atmosphere, regenerating the sieve. The towers alternate this cycle every few seconds, ensuring a continuous, stable flow of oxygen. This efficient and reliable process eliminates the logistical challenges and safety risks associated with stored oxygen.